Abstract: A one-piece clip includes a stiffener, a first connector plate extending from the stiffener at a first dihedral angle to the stiffener, the first connector plate configured for attachment to a support member extending beneath a corrugated metal deck, and a second connector plate extending from the stiffener at a second dihedral angle to the stiffener, the second connector plate configured for attachment to an underside of the corrugated metal deck. A method of retrofitting a structure to augment its resistance to uplift and seismic forces includes the steps of attaching a first connector plate of a one-piece clip to a support member extending beneath a corrugated metal deck, and attaching a second connector plate of the one-piece clip to an underside of the corrugated metal deck.

Abstract: A panel formwork T-shaped arrangement has panel formwork elements 61, 62 directly bordering an intermediate panel formwork compensation element 53. The associated formlinings 61a, 53a, 62a are in one plane. These formlinings 61a, 53a, 62a delimit on one side the continuous wall 84 of the T-shaped intersection to be produced. The three components 61, 53, 62 are engaged from behind by a crossbar 85 for mechanical stabilization. The two formlinings 55a, 57a delimit on both sides the abutting wall 86 of the T-shaped intersection to be produced. The lateral outer edges 12 and 17 of the inner limb 56 and the panel formwork element 61 are aligned with respect to each other at the edge plane R. The outer edges 78 and 81 of the inner limb 58 and the panel formwork element 62 are also aligned with respect to each other at the edge plane R?.

Abstract: The invention concerns a panel formwork corner system, comprising a) a panel formwork inner corner element (1), with two inner limbs (5, 6) that are connected to each other and arranged at an angle with respect to each other, b) a panel formwork outer corner element (2) with two outer limbs (25, 26) that are rigidly connected to each other and disposed at an angle with respect to each other, c) two rectangular panel formwork elements (3, 4), each being formed with at least one tie hole (13, 14, 15, 16), wherein all tie holes (13, 14, 15, 16) of a panel formwork element (3, 4) are disposed in a common tie hole plane (A), wherein this tie hole plane (A) extends centrally between two parallel lateral outer edges (17, 18, 19, 20) of the rectangular panel formwork element (3, 4) and perpendicularly with respect to the formlining plane (SE), wherein the position of each tie hole (8, 9, 10, 11) of each inner limb (5, 6) with respect to three lateral outer edges (21, 12, 22) of the inner limb (5, 6) corresponds to t

Abstract: The invention is a formwork system and a method of using the formwork to construct rammed earth walls. The formwork comprises end panels which can be quickly assembled and disassembled to provide end stops to support side panels without the need for through-ties. The end panels comprise integral handholds for access to the full height of the formwork. The end panels are stackable, rotatable and interchangeable, such that one set of formwork may be used to create several different wall configurations. The finished wall contains an internal support structure and insulating core, without through-holes.

Abstract: The form panel for placing concrete of the present invention is a form panel (30) comprising a hollow sheathing section (32) made of plastic, one side of which forms a concrete placing surface (31), and hollow side panel sections (33) bent out at right angles from both side edges of the sheathing section (32) on an opposite side of the sheathing section (32) to the concrete placing surface (31), wherein projecting sections (40) which extend in a vertical direction are provided on an outside surface (38) of the side panel section (33), and one of the sides of one of the projecting sections (40) is coplanar with the concrete placing surface (31) of the sheathing section (32), and on the projecting sections (40), notches (41) are formed at respectively the same position and orthogonal to the longitudinal direction of the projecting sections (40).

Abstract: A system for holding poured concrete in a desired shape until it sets is disclosed. The system can include a plurality of forms having two opposing end sections. Each of the end sections has an end bracket attached to it. A plurality of footing stakes may be used to connect the end brackets together such that the forms maintain the desired shape. At least one whaler bracket may be secured to a top of the forms to maintain the spacing between them. A skin panel can be used to bridge gaps between forms. Bulkhead brackets can be attached to the ends or centers of the forms and secured to allow end walls to be created where desired. Vertical footing panels can also be used to pour concrete onto adjoining inclined surfaces.

Abstract: A method for manufacture and assembly of a concrete structure includes manufacturing, at a first location, wall sections and floor/ceiling sections. The wall sections include interior form walls of adjustable separation, and may include interior and exterior finish features, interior rebar, electrical and water supply, and optional fabric forms. The floor/ceiling sections include forms that have adjustable components, and may include rebar, interior finish features, and electrical and heating components. Wall sections and floor/ceiling sections are rotatably and slidably/rotatably attached to one another to define structure segments. Structure segments may be placed in shipping containers for transport. Structure segments are transported to a construction site in a compact orientation, manipulated to an assembled position, and then concrete is inserted into forms defined by the segments and permitted to cure.

Abstract: A concrete form apparatus includes a rectangular panel having first connector elements along a first edge thereof and second connector elements along a second edge thereof. The first connector elements are aligned with the second connector elements and are complementary and structure. The first and second connector elements can connect a plurality of the panels together with the first and second edges thereof adjacent to each other. Third connector elements are connected to the panel in spaced-apart relationship and are engageable with clamps for securing walers to the panel. For example, the first connector elements may be hook-like latches and the second connector elements may be buttons. The third connector elements may be buttons. A plurality of the rectangular panels are arranged adjacent to each other in edge-by-edge relationship. The rectangular panels are connected together.

Abstract: Modular concrete form components which, when assembled into large wall form assemblies are sufficiently strong to resist the bending forces applied during picking and placing of the wall form assemblies without the need for the attachment of additional or external stiffening members. A bearing block is secured to a stiffener that runs along the back side of the form component adjacent a perimeter flange of the form component.

Abstract: A concrete form system for receiving concrete includes a plurality of interlocking form panels having opposite side ends, and which capable of being selectively arranged in series as a wall of a form configured to receive concrete. A plurality of attachments are each disposed between adjacent form panels, and vertically engage the side ends of adjacent form panels to interlock the side ends of the adjacent form panels to resist lateral separation of the adjacent form panels. The attachments an include one or more channels or engagement walls, and an insert received withing the channels or engaging the engagement walls. Ties or brackets can extend between parallel, spaced-apart form panels to maintain a predetermined, spaced-apart distance. A gauge bar can moveably extend into the form to indicate a fill level.

Abstract: A corner form assembly for forming inside corners of concrete structures. A pair of double bias form components, each of which has an acute angle between a side rail and the face sheet are arranged with the side rails in contact engagement to form a form assembly with an inside angle equal to twice the acute angle of the side rails. A reverse bias coupler is used to join the double bias form components with conventional wall form panels having 90° end rails. The corner assembly acts to release the forces imposed on the components by the poured concrete upon disassembly and so allows the components to be readily stripped from the poured wall.

Abstract: To provide an ultra thin-type metallic form panel, a form employing the same, and a method for constructing a foundation with which labor in performing operations for constructing a concrete building may be remarkably saved. Form panels 2 are used as a form 1 for constructing a foundation, each panel including a plurality reinforcing projecting lines 5 obtained by bending a metallic plate to extend in longitudinal directions and formed in an aligned manner with intervals being formed in lateral directions, wherein guiding portions for bending 20 are formed at intermediate portions in the longitudinal directions by cutting at least top surfaces and both lateral sides of the respective reinforcing projecting lines 5 in lateral directions and the remaining portions are remained as coupling portions 21.

Abstract: A method and apparatus for retaining separable parts for a concrete forming panel includes the provision of a retaining member on the forming panel located separately from any one of a plurality of coupling sites. Separate and discrete parts may be held on the retaining member until the parts are ready for use. The retaining member may include a reinforcing bar having at least one and preferably a plurality of openings therein for frictionally holding the part therein. The opening may be provided with a gripper to enhance the frictional engagement and improve the parts holding ability of the retaining member. The retaining member may include a magnetic coupler which is especially useful with aluminum forms for holding steel parts in position. Further, the retaining member may include a self-sticking material with cooperating components on the part and the form whereby the parts may be readily attached and removed from predetermined areas on the forming panel.

Abstract: Concrete form panels having a plurality of openings in the exterior flange and crossing interior ribs that provide access from an opening in the exterior flange to any interior section between the ribs. Wires, plumbing, and the like are run through the openings to reach any desired area of the back side of the panel while remaining wholly inside the confines of the form panel, thus reducing the likelihood of the wires or plumbing interfering with workers and equipment in the area behind the form panel. In combination with a backside cover, the openings create a plenum through which a fluid, such as heated or cooled air, is passed over the form to assist in the control of the temperature of concrete curing adjacent the form panel.

Abstract: Structures for securing foam panels in position with respect to each other in order to form a mold for the pouring of concrete, such as in the case of the pouring of a building foundation or building wall are disclosed. A first type of member which has pairs of facing flanges for engaging facing walls at opposite ends on the member. This first type of member comprises an upper and a lower section. The upper and the lower section are connected to each other by at least one frangible bridge, which may be broken to accommodate the need for a shorter member at the top and bottom of the mold. A corner brace, having two pairs of facing flange members located in its upper section, and two pairs of facing flange members located in its lower section, is adapted to engage the four panel corners which meet at the corner of the poured cement mold where the top of one row of panels meets the bottom of the next row of panels.

Abstract: Formwork system for concrete casting, comprising formwork units built up of modular panels, horizontal and vertical brace rows, where horizontal channel profiles (3) are fastened to the formwork skin (4) with a constant spacing, vertical profiles (2) are resting against the horizontal channel profiles (3), horizontal flange profiles or flange pads (1) which span over four, six and so on, modules, are arranged outside the vertical profiles (2), braces are led through brace holes in the skin (4) in the three profiles (1, 2, 3) in both the formwork sides, the horizontal flange pads (1) extend over at least three vertical profiles (2), and the panels are arranged horizontally or vertically as a whole number of modules.

Abstract: A clamp (1) for connecting form panels disposed in coplanar, side-by-side relation which engages their edge webs (2) or edge sections, which webs (2) can be directly adjacent to each other or have an intermediate piece in between. In order to adapt to the varying spacings or to different dimensions of edge webs (2) or edge sections, the clamp includes a first swivelling clamping jaw (4) which is steplessly adjustable relative to a stationary clamping jaw (5) and lengthwise on a carrier (6) which supports the two clamping jaws (4 and 5). In addition, the first swivelling clamping jaw (4) is swivel-mounted on a slide (10) which, in turn, can be fixed by clamping in any position on the carrier (6), particularly by a tipping or swivel movement in an opposite direction.

Abstract: A waler system includes a number of clamps each of which has a lower leg including a tab with a hole therein which is secured to the wall form of a poured concrete wall system by a standard pin connection. An upper leg of the clamp translates between a loading/unloading position so that a waler beam can be installed easily and conveniently on the clamp attached to the wall form. Each of the clamps is then simply translated into the clamping position by forcing the upper leg downwardly and inwardly toward the beam and the wall form. After the concrete has been poured and the wall cured, the waler system can be disassembled by simply translating the upper leg of each clamp upwardly and outwardly to disengage the waler beam. The transformation is assisted by a spring captured within the upper leg of each clamp.

Abstract: A modular forming unit for forming concrete foundation walls having a footing of rectangular cross-section includes a pair of spaced apart form members that are connected by a plurality of stabilizing spacers. The stabilizing spacers permit each complete wall forming unit to be prefabricated to precise dimensions off-site and then transported to the job site. Each pre-fabricated wall form section can then be put in place as a single unit, so that no on ground or below ground assembly is required.

Abstract: A concrete form system is disclosed, together with a method of assembling it and particular ties useful with it. The system has a concrete form with two opposed walls and a cavity between to be filled with concrete. One wall is made of conventional wood or metal panels. The other wall is made of foam panels. Vertical joins between plywood or metal panels are directly opposite vertical joins between foam panels. The system provides ties to join the two walls and brackets or retaining members to spread the forces on the ties so they do not pull out of the foam wall.

Abstract: A concrete form securing device includes two or more securing frames combined together, plural spacing bars, plural engaging members, and plural fixing boards as main components. The two securing frames are temporarily kept in place by a sustain bar and two or more annular clampers and then combined with the horizontal fixing boards and secured by the engaging members, the support boards, the cushion members, and the engaging members, and a pair of two securing frames are kept spaced apart by the spacing bars so as to form a space between two rows of the securing frames, and a concrete wall may be formed in the space, after the sustain bars and the annular clampers are removed.

Abstract: A universal reusable system is provided for molding concrete or other settable fluids for use in building construction. In the subject system, apertured composite plastic panels and frames, prestressed by the presence of an array of removable and interchangeable oversized plastic plugs, are positioned and held in place by a framing system which utilizes a combination of apertured strips used as base guides and both vertical and horizontal channels, as well as dowels and plugs. The use of apertured panels and framing system provides for a reusable assembly whose dimensions can be readily set on site for each application and whose rectilinearity is maintained either by the dowel-aperture combination or by a combination of oversized plugs in adjacent members to be joined and connectors therebetween.

Abstract: A wall forming apparatus for constructing monolithic concrete footings and walls of a building foundation which includes a plurality of relatively light-weight prefabricated wall forming panels connected together and positioned to form a plurality of opposing monolithic footing and wall forming units, each panel having an outer rigid framework from which an adjustable footing form depends, the opposing footing forms of the opposing footing and wall forming units being devoid of any structure extending directly therebetween, and the framework of each panel being constructed of sufficient rigidity and with sufficient cross-sectional dimensions so as to prevent canting and sagging of the footing and wall forming units formed by the panels when interconnected.

Abstract: A two-piece corner tie includes first and second tie halves which are removably connected together. The first tie half includes forward and rearward form panel retainers for holding form panels in upright spaced apart parallel relationship. The second tie half is preferably identical to the first tie half, and retains a second pair of form panels in upright spaced apart parallel relationship. The tie halves are connected by a pair of pins journaled through co-axial sleeves, to retain a first pair of form panels at a predetermined angle relative to a second pair of form panels, to thereby form a corner.

Abstract: A contoured wall and method is disclosed for creating the contour and appearance of a wall formed from individual assembled units such as stones. The wall is formed from a plurality of mating form liners each having a reciprocal contoured surface to that of the desired stone wall. The wall is formed from hardenable construction material such as concrete poured between two mold members with the form liners attached to at least one of the mold members. Each of the form liners has a lateral relief mold face adapted to provide a molded surface having the contour of a stone wall. Each lateral relief mold face of the form liners has a latticework non-linear mortar-forming interlocking portion surrounding stone-forming recessed portions. The form liners are positionable in a plurality of arrangements wherein the interlocking portions and recessed portions along the mating edge of each form liner mate along mating edge of the adjacent form liner to form a continuous lateral relief mold face.

Abstract: Proposed is a double-walled formwork element comprising two large-area panels suitable for use as mould shuttering, particularly in the concrete construction industry. The two panels are joined to each other by force-locking, liquid-tight and gas-tight engagement, and form between them a cavity. The invention secures the two layers of shuttering against slippage and ensures the discharge of any leak liquid produced. The invention also enables shuttering systems to be assembled cheaply and simply for constructions of various shapes.

Abstract: A formwork component for the erection of cast structural walls, particularly for the erection of concrete walls. The formwork components includes a formwork plate with stiffening elements, for example, frames or girders, being mounted at the rear side of the formwork plate. Rails are provided on at least two oppositely located edges of the formwork plate. When several formwork plates are located next to each other or one above the other, the rails are located next to each other. The rails are connected by connecting elements, such as screws, clamps, or braces. Positioning, elements are provided on the rails. The positioning elements are projections and abutments which receive the projections and have a shape corresponding to that of projections.

Abstract: A formwork panel has a board and a frame for the board. The frame is made up of strips of sheet material which extend along respective edges of the board and project from the edges at right angles to the board. Each strip has a flat longitudinal marginal portion adjacent to the board and a flat longitudinal marginal portion remote from the board. The marginal portions of a strip are located in a common plane. Each strip further has two protrusions which respectively extend from the marginal portions of the strip towards the opposite strip of the frame and define recesses opening away from the opposite strip. A protuberance is disposed between the two protrusions of a strip. Each protuberance extends from the adjoining protrusions away from the opposite strip and defines a depression opening towards the opposite strip.

Abstract: A latching bolt mechanism for fastening adjacent concrete form panels together to make a larger form work is disclosed. The mechanism includes a base permanently mounted on a form panel and a slidably attachable and detachable latching bolt mechanism having a tapered engagement pin for penetrating aligned apertures in the side rails of adjacent panel forms. The latching bolt further includes a tapered pin sleeve engaging portion that is received in the central bore of a pin sleeve, allowing transverse, shearing forces on the engagement pin to be readily dissipated. The pin sleeve in turn reciprocates within the central bore of a self-lubricating guide sleeve, which is seated within a housing block. A detachable mounting system includes a mounting bracket attached to the form panel and mating flanges on the housing block.

Abstract: A formwork panel has a face plate which is mounted on a frame made up of structural shapes. The panel is reinforced by a set of spaced, parallel reinforcing beams mounted on the back of the face plate. Additional beams are disposed between selected pairs of reinforcing beams. The additional beams are perpendicular to the reinforcing beams and are spaced from the frame. Each additional beam is provided with an opening which registers with a corresponding opening in the face plate. The registering openings receive tie rods which connect two facing formwork panels to one another so as to define a pouring space for concrete.

Abstract: Formwork structure for erecting continuous surfaces on one or both sides of a casting cavity. A formwork member with a plurality of openings defines the surface of the casting cavity. Form stays (32) extend through the openings in the formwork member surface into the casting cavity. Formwork stiffening members are located adjacent to the formwork member surface outside the casting cavity. The formwork members are arranged to define longitudinal and transversal mutually crossing channels with openings for receiving the form stays. The formwork members define the walls and base of the channels, which open outwardly away from the casting cavity. Side plates are connected to the formwork members at the edge of the formwork structure to create substantially rectangular structures. A rod-shaped connecting member is used to join adjacent sections of formwork structure. Arm crosses with a central opening for receiving the form stays are located in the crossing channels.

Abstract: A concrete construction form including a plurality of assembled sections each having a first smooth coffering surface and a rear surface reinforced by stiffening fins oriented perpendicularly to the rear surface with elongated reinforcement gutters extending along each stiffening fin and wherein transverse girders are connected to the fins by fasteners extending through the girders and into the open ends of the gutters.

Abstract: A method is disclosed for manufacturing a double-walled hollow lost casing for use in the production of marine engineering civil works having inner and outer walls each made of pre-cut plates of such size and shape that the lost casing has a polygonal cross-section throughout its height. The method includes the steps of assembling a jig by interconnecting a plurality of standard frames stacked upon each other to a desired height which together present an outer surface generally corresponding to a wall of a lost casing to be produced, assembling on and releasably attaching the pre-cut plates to the outer surface of the jig and seamlessly joining the assembled plates, and then releasing the completed wall from the jig.

Abstract: The present invention provides for a device for adapting a formwork element, including a formwork lining and at least two formwork beams, to a given curvature of circular framework. A device includes a web engaging a space between two formwork beams and a cross-piece fixed to the web and equipped with two parallel, spaced plates which project laterally beyond the web and overlap the formwork beams in an installed position. Projecting portions are provided with mounting lugs in which a plurality of the lugs have at least one projecting portion and the lugs are arranged in two planes disposed at different spacings relative to the web.

Abstract: The invention relates to shuttering elements for use in building construction. The shuttering elements are of a synthetic plastics material and define a rectangular shuttering wall, peripheral side walls and engagement and locking formations whereby a plurality of similar shuttering elements can engage one another and be locked in their engaged configuration, to form an extended shuttering wall of a shuttering structure. A complete shuttering structure defining a building structure to be constructed can then be erected by placing engaged shuttering elements in an opposing configuration, link rods providing for opposing walls of the shuttering structure to be engaged. A shuttering structure so formed can then be filled with a settable material in order to form the required building structure.

Abstract: A form for erecting structures having an plan shape, any generatrix and possibly changing wall thickness includes an inner form (1) and an outer form (2). Circumferentially closed support rings (5,6) are arranged horizontally spaced from the inner form as well as from the outer form. Radially aligned sleeves (35) are provided in the support rings (5,6). Threaded spindles (7,8) are slidably but fixedly held in the sleeves (35). One end of each threaded spindle (7,8) engages form carriers (11,12) which rest against the form carriers (3,4). The inclination of the form plates (3,4) or the wall thickness of the structure to be erected can thus be adjusted. Web members (13,14) are provided between the form plates (3,4) in circumferential direction of the form, the web members engaging over the form plate edges at the rear sides thereof. The web members have a support (15,16) on the surface facing the structure in the region between the side edges of the spaced-apart form plates (3,4).

Abstract: A curved concrete forming structure to provide a 1000 psf system for forming curved walls having a radium in excess of 5'. The structure includes a series of arcuately curved metallic panels secured in stacked side-by-side assembly. The improvement particularly concerns a panel which is comprised of a flexible metallic skin plate. Spaced vertically extending ribs are positioned along the length of the panel on one side thereof. The ribs and the skin plate have essentially the same vertical dimensions. A pair of vertically spaced arcuately curved angles are provided which angles have identical diameters that correspond to the diameter of the concrete wall to be poured using the concrete forming structure. The curved angles are substantially stiffer and inflexible compared to the flexible skin plate.

Abstract: An concrete form system includes opposed polystryrene panels stacked to form a pair of parallel, spaced-apart walls, at least one of the walls having panels which are smooth on their inward surface. Tie slots are formed in the upper and lower edges of the panels and are spaced evenly such that slots in vertically abutting panels are aligned. The panels are horiziontally staggered to strengthen vertical joints. A single tie is utilized to interlock two vertically abutting panels in each wall. A special tie design is used with the smooth-faced panels to allow the panels to be removed after a concrete wall has been formed. Another embodiment of the tie design utilizes an enlarged outer paddle with a projecting rib which allows connection of vertical walers directly to the tie.

Abstract: Multipurpose concrete form panels are constructed using cross stiffener members for resistance to deflection under load. Each of the cross stiffener members is formed of a base strip of metal with a pair of parallel ribs of hat section extending therefrom and joined to opposite side rails of the form panel. Bores for connecting pins extend through the side rails to join the panels side by side to form a wall or, using a corner form, to form a column. Bores through the side rails are positioned between the cross stiffener members and between the ribs in each pair of ribs for joining the side rails together with continuity of the cross stiffener members for maximum dispersal of stress. Holes for wall ties extend through the face of the form panel and between the ribs in each pair of ribs. Fasteners for the ends of the wall ties engage the pairs of ribs to disperse localized stress.

Abstract: A spacer/tie rod to space and hold reusable sections of concrete molds is, according to the principal embodiment of this invention, constructed of two main elements and two auxiliary elements cut from the same small diameter steel rod stock. The main elements are identical, with each having an elongated central section and upturned indexing sections at each end, while the auxiliary elements are identical and straight. The latter are welded to the former at positions where the auxiliary elements are spaced apart by a distance equal to a wall thickness, and the distance between each auxiliary element and the main element indexing section nearest to said auxiliary element is equal to the thickness of the frame that stiffens a form section. The indexing sections of the main elements are tool bendable between form positioning and form holding positions.

Abstract: An extender device for fastening one concrete form size on top of another and holding the two in tight secure relationship. The device used for extending includes a pair of scaffold bolts to permit attachment of a scaffold. It further includes a "U" shaped sharpened slot portion at each end.

Abstract: A gang form or tie rod holding bolt is adapted for holding a tie rod passing through abutting frames of prefabricated panel units, the frames having mating slots. The tie rod holding bolt includes a body portion and a slot leg for extending through the mating slots, a middle leg for loading the frames, and a tie rod engaging leg for transferring a load from the tie rod to the holding bolt. The form slot leg and the middle leg are horizontally offset to straddle the tie rod and the middle leg is adapted to transfer the load to the frames, thereby providing the bolt with great stability under heavy loads. The design avoids eccentric load on the bolt. An assembly includes the bolt, tie rod, wedge pin and two frames.

Abstract: A sectional wall form system is disclosed for forming concrete walls or the like. Basically, the wall form system comprises a plurality of channel panels which are serially connected together in a side-by-side relationahip by means of a plurality of lock brackets. Each lock bracket comprises a substantially rectangular configuration dimensioned to closely fit between the side portions of the channel panels. A pair of L-shaped locking rods are welded to the underside of each of the lock brackets and extend from one edge thereof. A pair of locking apertures is located in the other edge of each of the lock brackets. During assembly, the channel panels are placed in a side-by-side relationship. An intermediate lock bracket is placed in a position substantially parallel to the side portion of an intermediate channel panel enabling the locking rod to engage into respective apertures in the side portion of the intermediate and the succeeding channel panel.

Abstract: In a formwork panel for concrete walls having a forming skin carried on a steel frame comprising frame pieces extending along the edges of the said forming skin and at least one wedge slide guided on a cross-strut of the said frame, which wedge slide serves to press one end of a bar extending over the joint between two neighboring formwork panels against frame pieces of the said formwork panel, the slide (20) is guided on a cross-strut (5) and has an essentially U-shaped cross-section the legs (22) of which are provided with inwardly extending projections (24) which coact with projections (15) extending laterally from the cross-strut (5) to form a wedge-type connection. The height of the cross-strut (5) is reduced as compared to that of the frame pieces (4) by the value corresponding to the thickness of the cross bar (30) of the slide (20).

Abstract: A concrete construction system and method for erecting building structures in which column casting molds are assembled from a plurality of modular, interlocking, reusable forming elements, and in which the precast columns are provided with anchoring elements embedded in one end of the column. Support footings are cast in situ using reusable form components to provide a structure accommodating direct placement of precast support columns and precast wall panels. A framework of adjustable joist assemblies provides support for construction of the roof or upper level floor structure.

Abstract: The specification discloses concrete forms each including a plurality of rectangular panels secured edgewise together by connectors. Each connector includes a pair of half sleeves secured in a pair of grooves in the edges of the panels, and a cupped head of a connector sleeve wedges the half sleeves together to hold the panels in edgewise abutment. A nut screwed on the connector sleeve draws the cupped head into wedging engagement with the half sleeves. Tie rods extend through the connector sleeves. The panels include wood framing having plywood faces and filled with foamed plastic.

Abstract: A form system for constructing concrete walls is assembled from groups of laterally-interconnected units that are spaced to define the opposite surfaces of the wall. Tie systems traverse the space and matching edge discontinuities in adjacent units, with the pressure of the poured concrete being transferred from the form units to the tie systems by cross pins directly intersecting components of the tie systems and the marginal frame members of the units at the edge discontinuities. Transverse frame members provide mounting points for studs that interengage to laterally locate a pair of form units placed back-to-back, and members provide protected storage positions for tie components when they are not in use. Handles, and also fastenings securing panels to the frames, are positioned within the space enclosed by the frames to avoid interference in the back-to-back storage position of the units.

Abstract: Wall form panels with flanges along adjacent edges are joined by a channel strip traversed at the base of the channel by tie systems securing opposite panel assemblies in spaced parallel relationship to receive concrete between them. Securing bolts or wedge pins traverse the adjacent flanges and the walls of the junction channel, and the tie systems are cross-pinned to the assembly to positively establish the spacing of the opposite panel assemblies. A series of tie system components is preferably sub-assembled to the channel so that this separately-connected group of parts can be handled as one unit as it is interposed between the edges of the form panels, and held in place by the panel-securing fasteners.

Abstract: A concrete form holding and spacing apparatus is provided for opposed banks of form sheathing panels having backing studs, and includes reglet runners bearing against the runner faces of the panel backs and held apart by spacer rods which detachably interlock with at least one of the respective runners. Clamping means detachably connect to the runners and extend through seams or openings in the panel banks and between pairs of the backing studs to receive clamping cams or wedges.

Abstract: A form for walls and the like of the type formed by two parallel, facing molding surfaces each of the surfaces being formed by a plurality of panels, each panel having a rigid appendix extending transversly of the molding surface thereof and the free end of which constitutes a rigid vertical element, the ends of said element having assembly and connection means for cooperating with the adjacent end of the vertical element of a vertically adjacent panel. Mutual locking means are provided on the vertical edges of adjacent panels; and means are also provided for connecting facing panels and locking the same against relative movement.