Abstract: A method and apparatus for reinforcing and stabilizing a structure formed of stacked blocks, such as a pier used in a building's foundation. The method and apparatus employ brackets to bracket the edges of the structure and transiting members to transit the body of the structure. Stabilizing members engage with the transiting members. The stabilizing members are then tightened against the brackets thereby compressing, reinforcing and stabilizing the structure.

Abstract: The invention concerns a climbing shuttering system having a supporting structure on which various concrete shuttering elements are loaded hanging downwards. Said structure is connected at least to a first top supporting carrier that underprops it. The top supporting carrier has the means, to support it laterally to a completed wall section. The climbing shuttering system also has at least one lower supporting carrier, that can be supported on a completed wall section. There is at least one lifting device that brings about a relative movement between both supporting carriers. According to the invention, the top supporting carrier is designed to be supported on a substantially even surface.

Abstract: A concrete form suspension system has a form support projecting laterally from an upper portion of a vertically displaceable support structure and a hydraulic jack operable to raise the support structure along a vertically extending concrete structure. A support device can be secured to the concrete structure for supporting the jack and support brackets can be secured to the concrete structure for supporting the raised support structure from the concrete structure. By operation of the jack, the support structure can climb the concrete structure to allow concrete forms suspended from the form support to be located in position for use in upwardly extending the concrete structure.

Abstract: An improved concrete forming system comprising a concrete forming unit which includes at least one pair of oppositely disposed and laterally spaced apart form segments Each form segment includes an upright wall forming section and a foundation footer forming section which extends outwardly from a lower end portion of its upright wall forming section. A panel member is detachably connected to the wall forming section of each form segment and is positioned to face a corresponding panel member of the oppositely disposed and laterally spaced apart form segment.

Abstract: A method for constructing an upper concrete building unit on top of a pre-formed lower concrete building unit includes: (a) mounting vertical positioning pegs on the lower building unit; (b) disposing a horizontal floor form panel on top of the lower building unit, and providing holes in the floor form panel for passage of the positioning pegs to project upward through the floor form panel; (c) pouring concrete onto the floor form panel to form a concrete floor structure of the upper building unit with the positioning pegs projecting outwardly and upwardly therefrom; (d) mounting an upright wall form assembly on portions of the positioning pegs which project from the concrete floor structure of the upper building unit; and (e) pouring concrete into the wall form assembly to form a concrete wall structure of the upper building unit.

Abstract: The present invention relates to a concrete forming system and method permitting a series of stacked concrete slabs to be formed at a work site. The system includes a vertical support member configured to the work surface, concrete form members for defining a desired shape for a concrete slab and horizontal adjustment members for attachment of the form members to the vertical support member. Through use of the system, a series of stacked concrete slabs can be successively poured one on top of the other.

Abstract: Apparatus for "top-down" construction technique is described. Deck formwork assemblies for each structural concrete slab are lowered and supported from the level above the same. This application describes and claims a support arm portion of the apparatus for transmitting the load of a deck assembly to a vertical column of the building framework.

Abstract: The invention relates to an improved apparatus for the production of substantially vertical walls, and specifically, walls made of concrete which includes a single sided concrete form used, for example, to form a concrete wall against a preexisting wall or embankment, by pumping concrete into a gap between the form and the preexisting wall or embankment, and raising the form vertically as the pumped concrete settles and drys. The apparatus enables the construction of vertical walls of superior strength in less time as compared to currently available systems.

Abstract: A system for continuously forming a concrete structure that extends in a generally horizontal direction and has a predetermined cross-sectional configuration is provided. The system includes a frame, a first form, and a second form. The first and second forms are coupled to the frame and support at least a portion of the sides of the concrete structure being formed. The second form forms a pattern in one of the outside surfaces of the concrete. The first form may also form a pattern. The pattern includes concave and convex portions that extend other than just in the horizontal direction. The second form coacts with the first form to enclose an area having a cross-sectional configuration corresponding to the predetermined cross-sectional configuration of the concrete structure. The frame includes a side arm assembly that slidingly engages the outside of one or both of the forms.

Abstract: An apparatus is used to support and move vertically an erected form assembly during the construction of a building with a plurality of stories. The stories include a lower story and an upper story. Each of the lower and upper stories is formed previously with a concrete wall structure that has surrounding walls formed integrally with reinforced horizontal beams which confine an interior space. The apparatus includes a form support body that can extend across the interior space of the upper story and that has a top side on which the erected form assembly can rest. A plurality of legs extend downwardly from the form support body. Each leg has a lower portion associated with a clamping unit in order to fix releasably the leg to one of the reinforced horizontal beams of the lower story. A horizontal support bar is located below and is spaced from the form support body.

Abstract: Apparatus for a "top-down" construction technique for concrete frame buildings is described. Deck formwork assemblies for each structural concrete slab diaphragm are lowered and supported from the structural slab above the same. This support is provided by suspension rods which threadably engage attachment nuts embedded in the upper structural slab.

Abstract: A building construction system for progressively forming a plurality of vertical superimposed concrete segments. A plurality of screw jacks form support columns and carry at their upper ends sub-frames upon which an overlying main frame is positioned. Formworks are suspended from the main frame and are moveable into position for pouring concrete to form the segments. The screw jacks are supported on a horizontal building element preceding a previously constructed horizontal building element and are retractable. The main frame is supported on adjustable struts for repositioning the screw jacks prior to extension to a subsequent segment forming position.

Abstract: A device for vertical slipforming of concrete walls includes a rigid frame and at least one slipform assembly suspended from and vertically displaceable with respect to the frame. Concrete is delivered to the interior of each slipform assembly which is incrementally raised as the concrete sets and further concrete is supplied. Thus, concrete panels having a vertical orientation are progressively cast in the slipform assemblies at a job site.

Abstract: A system for forming an elongate concrete structure (20) which extends in a first direction and includes an outer surface (26) with a textured pattern having concave and convex portions which extend other than in just the first direction. The system comprises an elongate, planar form (32) having a reverse image of the textured pattern on one side (202) thereof, a conventional slipformer (30), the mule (60) of which is modified so as to include only a top wall (64) and a side wall (62), with the opposite side wall of the mule being removed, and a side arm assembly (150) coupled to the slip former for supporting the form so that it engages the mule so as to block off the opening in the mule created by removal on the opposite side wall thereof. The planar form is erected prior to formation of the structure, remains standing during the formation of the structure and is dissassembled a predetermined period of time after the concrete structure has been formed.

Abstract: A formwork arrangement for erecting a structural wall of castable material, for example, of concrete. The arrangement includes at least one work platform and formwork plates which have a large surface area. For erecting the structural wall, the formwork plates and the work platform are progressively vertically raised by the height of the formwork plates. A support frame which extends parallel to the platform is provided above the formwork plates of a formwork section. Horizontally extending rails which are horizontally spaced from each other are mounted on the support frame. The rails can be swiveled about a vertical axis. A carriage is slidably mounted on each of the rails. Each carriage has a suspended anchor member on a side facing the formwork plate. The anchor member can be connected to an upper edge of the formwork plates.

Abstract: The invention also contemplates a retractable corner mechanism for the inside corner of the concrete form. The mechanism comprises an elongated corner member having first and second perpendicular faces joined along a first edge of each face to form a corner and having form attaching means along a second edge. A concrete form has an end attached to each of the second edges. Means are provided for sliding the forms relative to the corner member and means is provided for retracting and extending the forms to cause the corner member to be retracted and extended. The forms can be made of plywood or metal and the use of steel is contemplated for the corner members. The retracting and extending means can include an externally threaded rod pivotally connected adjacent the end of one of the concrete forms and an internally threaded member pivotally connected adjacent the end of the other of the concrete forms and treadably received on the rod.

Abstract: A method for mounting floors in a shell whose concrete wall is erected by a continuous self-climbing shuttering installation and a continuous self-climbing shuttering installation for implementing the method, includes appropriate vertical and horizontal movements of certain assemblies (I.sub.1 -I.sub.2), (I.sub.3 -I.sub.4) of self-climbing brackets (2) and of their shuttering and concreting walkways (P.sub.1, P.sub.2, P.sub.3) so as to provisionally align the brackets (2, 2b) vertically in twos, and thus reduce the number of peripheral clearances to be provided in the floors to be laid at intervals inside the wall of the shell to be erected. The installation includes lateral transfer carriages (14, 14') providing the horizontal lateral transfers of the brackets, the vertical transfers being provided by the normal self-climbing system.

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: A mold for forming walls in situ by forming a wall portion and sequentially moving the mold as the wall is formed. The mold has opposed form walls and partitions which together define a wider space in the middle than adjacent the form walls.

Abstract: Rammed building walls having an earth core and integral cement jackets are formed by placing a rectangular earth hopper within a rectangular wall moulding cavity that is defined by formwork members which are aligned with an underlying foundation. The hopper is filled with earth while outside of the moulding cavity and has a trapdoor as its bottom. The moulding cavity has a substantially greater width than the width of the hopper so that jacket cavities are formed on either side of the hopper. A pair of tiltable cement hoppers, filled with concrete or a sand and cement mix, are mounted on the earth hopper and are tiltably unloaded into the jacket cavities. The trapdoor is then released so that the earth slides downwardly and laterally, and the hoppers are lifted as a unit out of the moulding cavity while the earth fills a core cavity between the mix-filled jacket cavities. Both the earth and mix are then rammed simultaneously.

Abstract: A beam clamp system for securely engaging a pair of concrete form panels for maintaining them in generally vertical position against inadvertent dislodgment or dislodgment due to outward pressure from recently poured liquid concrete. Each clamp has a horizontal portion and two long vertical members, brackets to slidably engage concrete form panels, and rods to securely and adjustably hold these form panels in place while concrete is poured and is curing. The form panels include a frame and a sheet with at least one smooth synthetic surface. In addition, this system includes a scaffolding system built into the beam clamp system. The system also includes a hanger system for supporting and positioning "re-bar" between the concrete form panels while liquid concrete is being poured and while it cures. Also a shepherd crook-shaped truss strap is part of the system and attaches to the "re-bar" hangers and the re-bar.

Abstract: A forming device includes two opposite form boards, an upper fastening unit mounted on the first and second top ends of the form boards, an upper hydraulic drive unit cooperably connected to the fastening unit and a lower hydraulic drive unit mounted on the bottom end of the first or second form board. The fastening unit includes a slide device to permit the first and second form boards to move away from one another or to approach one another. The slide device includes a slide bar fixed to the first or second top end of the form board, and a support bar fixed to the second or first top side. An upper hydraulic drive unit is cooperably connected to the slide bar and the support bar. A lower hydraulic drive unit is mounted on the bottom end of the first or second form board to move the form board relative to the formed concrete. The form boards can be stripped from a formed wall in a proper direction without causing the boards to swing and possibly damage the projecting portions of the formed wall.

Abstract: An apparatus has been provided for vertically lifting or lowering a workman and/or materials at a construction site. This includes a rectangular platform having four corners for supporting the workman and/or material so that they can be vertically moved within an elevator shaft or the like. The platform has side edges positioned adjacent the side walls of the shaft. The platform can be raised or lowered by a crane. Recesses are provided in opposite side walls for receiving latches attached to the corners of the platform. The latches are locked in place when they are positioned within the recesses and can be retracted when the platform is to be raised and lowered. Also, leveling devices are provided at the corners of the platform for leveling the panels and devices are also provided for holding the panels in proper location prior to pouring the concrete.

Abstract: An apparatus for producing foam-filled stud walls. The apparatus has a main frame, including a substantially vertical backplate against which the sheathing bears, a carrier unit moveable vertically on the main frame, and a dam carried on the carrier unit parallel to the backplate, moveable towards and away from the backplate. Hydraulic actuators are located between the carrier unit and main frame, and between the dam and the carrier unit, to hold the dam against the stud wall when the stud wall is positioned with its sheathing against the backplate, and to move the carrier unit and thus the dam vertically while it is so held against the stud wall.

Abstract: A concrete wall forming apparatus is described that facilitates formation of an elongated concrete wall between opposed sheet forms. An assemblable frame mounts the sheet forms in upright opposed orientations. The frame supports pairs of driven rollers that move against external surfaces of the sheet forms along the length of the wall as concrete is being poured. Each pair of rollers is driven by a selectively removable drive assembly including a single motor drive and gear arrangement by which both rollers of the pair are driven simultaneously. At least one of the rollers is connected to the driving gears through a clutch arrangement. The clutch may be selectively operated to disengage the roller at the inside of a corner, thereby allowing that roller to remain stationary while the remaining roller rotates to move about the outward radius of the corner.

Abstract: The invention relates to an apparatus for the production of building units from an afterhardening mixture containing cement and/or lime as binding material. The raw mixture is continuously fed and pressed by stamping into a die with CO.sub.2 gas at a pressure higher than atmospheric being passed through the raw mixture in the die space. Through an instantaneous reaction of carbonation, the material is hardened to a formed body. The CO.sub.2 gas is prevented from escaping by a gastight seal in the vicinity of the inlet port of the die. Further towards the outlet port, the pressure of the CO.sub.2 gas is decreased. In the vicinity of the outlet port only as much CO.sub.2 gas is fed as is necessary for the completing of the chemical reaction. Thus, any loss of gas will be minimized. The continuously discharged body is cut to size by using a saw.

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 primary forming member is associated with a secondary supporting structure to allow rapid construction of elongate concrete structures of uniform cross-section by removing the primary forming member before the concrete mass supported by the secondary supporting structure is set or self-supporting. The primary forming member provides plural spaced forming arches, foldable for transport, and supported for vertical motion on a carriage providing for horizontal motion along the axis of symmetry of the formed structure. The primary forming member supports a plurality of spaced support arches of the secondary supporting structure with a plurality of cross elements therebetween to support rigid panels that create a forming surface for plastic concrete and remain as a part of a formed concrete structure to provide insulation. The forming system forms a self-supporting arched concrete surface with spaced depending arches by being sequentially moved axially therealong.

Abstract: A segmental formwork for round structures has a framework consisting of soldiers (6) and polygonal stretchers (5) that can be adjusted angularly at the corner points. The formwork boards (12) of the formwork shell bear directly against the stretchers (5) and have a continuous curvature. The stretchers (5) are formed from structural shapes.

Abstract: The invention relates to a sliding shuttering system for producing concrete structure walls, particularly for conical and/or sloping reinforced concrete structures with annularly closed, varying cross-sections. Especially in the case of sloping structures with upwardly diverging wall regions, the hitherto known sliding shuttering systems can only be used to a limited extent with regards stability and security. In order to be able to perform a sliding process even in the case of extreme structure configurations, the support is made rigid and is mounted on angularly adjustable piles, at least one of the pairwise associated piles being fixed to the support to prevent horizontal shifting.

Abstract: The invention relates to a sliding process for producing concrete structure walls and a sliding shuttering means for erecting or installing monolithic block brackets, praticularly in the case of annular structures. In order to permit a continuous installation of block brackets in the case of a favorable force transfer between the structure wall and the sliding shuttering, the invention provides for the integration into the sliding shuttering of shuttering forms which are substantially complimentary to the block brackets to be installed. In height regions without block brackets, the shuttering form is terminated in aligned manner on the wall side of the structure and is opened on reaching the height level of the block bracket to be installed. After providing the block bracket, on raising the sliding shuttering, the shuttering form is again closed at the top height level of the block bracket.

Abstract: A slip-form of the kind for defining at least one surface of a wall-space into which concrete is to be poured. The slip-form includes a plurality of spaced apart upwardly extending members and to facilitate the locating of reinforcing rods at selected positions in the wall-space the slip-form includes roller assemblies releasably engaged with at least some of the support members to form within the wall space a height adjustable horizontal race and an inclined race feeding down to said horizontal race. The inclined race being adapted to transport reinforcing rods onto the horizontal race for onward transport to a location adjacent the selected position in the reinforcing structure.

Abstract: A formwork apparatus for concrete placing comprises: a center frame assembly having upper and lower ends; first and second form panels for molding concrete walls, each having a supporting member mounted on an outer surface thereof, the first form panel pivotally connected at its supporting member to the upper end of the frame assembly so as to be pivoted about a substantially horizontal axis, the second form panel pivotally connected at its supporting member to the lower end of the frame assembly so as to be pivoted about an axis parallel to a pivot connecting the first panel with the frame assembly; a first fixing mechanism for fixing and releasing the first panel to and from a cured concrete wall; a second fixing mechanism for fixing and releasing the second panel to and from the concrete wall; a first drive mechanism for pivoting the frame assembly around the first panel when the first panel is fixed to the concrete wall so that the second panel is brought to a position upper side of the first panel; and a

Abstract: In the construction of tall concrete towers, a two part derrick is suspended by cables from the tower to the lower part of the derrick. The derrick is extended on hydraulic rams, raising its upper part and outside casting forms. A pulley system maintains a deck scaffold and inside forms at their original level during extension. Extension of the derrick slakens cables from the tower to the upper part of the derrick. These cables are disconnected from the tower and reconnected at a higher level. Outside forms are fixed, reinforcing steel set in place, and the derrick retracted, raising the deck scaffold and inside forms by the pulley system, and slacking the lower cables. The lower cables are disconnected from the tower and reconnected at a higher level. Inside forms are set and concrete is poured. The concrete sets and the procedure is repeated.The deck scaffold comprises radiating wooden beams with endpieces.

Abstract: A clamping device for concrete forms to apply pressure to opposed panels that contact the concrete to mold it. The device comprises a yoke to enclose the opposed panels. The yoke has a cross member and arms at each end of the cross member extending, when the device is in its useful position, downwardly to surround the panels. Open sides for the arm, each face inwardly, towards the other arm. A pressure member within each arm is reciprocable through the open side of the arm to vary the pressure applied by the pressure member. The pressure members can be forced outwardly.

Abstract: Apparatus for erection of arcuate walls of poured concrete has one or more deformable sheathings secured to turnable supports which are movably secured to one another by composite girders having alternating rigid variable-length links and fixed-length connectors which are affixed to the supports. The angular positions of the supports are changed by changing the length of the links. Locking devices are provided to hold the links against angular movement relative to the neighboring connectors when the sheathing assumes the desired shape. The locking devices can constitute separable components or they may be permanently mounted on and/or integrated into the links and/or connectors.

Abstract: A method and apparatus for forming poured concrete walls using crane-lifted type jump scaffolding optionally including associated wallforms, and particularly including a unique automatic safety lock system keyed to the lifting operation to anchor and secure the scaffolding to the previously poured shearwall. This latching system allows for safe and efficient placement of the scaffolding and eliminates the need to have workmen present on unlocked scaffolding, and especially removes the reason for workmen to be tempted to ride the scaffolding while it is being lifted.

Abstract: A scaffold to which form plates for forming a concrete wall can be fastened is suitable for circular constructions and includes a polygonal frame which is vertically adjustable along supports. The frame, is angularly adjustable at the corners, of plural straight frame portions, each of which is a separate part attached to the adjacent frame portions.

Abstract: A concrete forming system for constructing small diameter concrete columns with a refractory liner on the inside of the column wall. The present invention supports the inner and outer forms for the column wall on jacking frames which travel vertically on jacking beams attached to the wall. Loads created by plastic concrete are resisted by a system of radial supports which are attached to the inner concrete shaping forms and are supported by the jacking beams and jacking frames. After a portion of the column wall is poured, the next higher portion of the concrete column wall is formed by advancing the jacking frames and the concrete shaping forms upwardly along the jacking beams and reattaching lower sections of the jacking beams at the top of the jacking beams in order to provide a continuous track. The jacking frames and forms are raised on the jacking beams after a portion of the column wall is poured and the next higher portion of the concrete column wall is to be formed.

Abstract: A self-elevating formwork for making concrete walls. The apparatus includes means for temporarily fixing working platforms to previously cast wall portions and is characterized by upright members having a pivot on one side and elevation adjustment means on the opposite side.

Abstract: A climbing form for progressively raising a form assembly in the construction of a concrete wall comprises has a support frame that adjustably carries a mast form unit, a main mast assembled with the frame for relative up and down movement, and a jib mast, equipped with a lifting means, extended upwardly from the main mast. A carriage within the main mast is releasably locked to the frame when the main mast is moved relative to the frame, and is releasable for up and down movement within the upper section of the main mast to raise and lower a jib form unit. A reversible nut and shaft drive means has the shaft rotatably supported in the mast upper section with the nut mounted on the carriage. With the lower section of the mast secured to the wall, and the frame and carriage in locked engagement, the drive means operates to raise the frame and carriage relative to the main mast to a new pouring position for the mast form unit.

Abstract: Climbing forms for stepwise erection of concrete walls have a platform which is supported by a frame having elongated carriers extending at right angles to the outer side of the wall to be erected and being removably suspended on anchors which are embedded in the wall. The platform supports a pair of parallel guide rails for a form member which carries the boarding of the climbing forms. The rails guide the carriages of the form member so that the boarding can be moved between an advanced position in which it is adjacent to the cavity into which concrete is to be poured and a retracted position in which the wall and the boarding define a passageway which is accessible to workmen on the platform so that the workmen can clean and/or otherwise treat that side of the boarding which faces the wall.

Abstract: A bracing unit to secure a formwork panel to falsework or to a previously poured concrete structure includes a pressurized fluid inflatable and expandable hose and a rigid abutment member for supporting the hose and holding it against the outside surface of the formwork panel.

Abstract: An edge joist is provided for installation along an edge of a wallform sheathing panel. The edge joist is generally formed as a S-beam. A front flange thereof is generally L-shaped and engages the rear surface of the panel at one edge thereof. A rear flange is arranged generally parallel to the front flange and has a provision, such as a T-channel bolt slot, for connecting to wallform walers. A stepped web connects the lower edge of the front flange to an upper edge of the rear flange, and preferably includes a lower web plate extending back from the lower edge of the front flange, a riser extending slopingly back and upward from the rear plate, and an upper web plate extending rearward from the top of the riser to the rear flange. The front flange can have a toe plate overlapping and protecting the panel edge and a flange plate extending upward along the rear surface of the panel. Preferably, beads are formed along the lower surface of the web lower plate to form seals when edge joists are butted together.

Abstract: The invention relates to an apparatus utilized in the pouring of concrete walls and includes a number of vertical girder-like or "strong-back" members to which are clamped a number of transversely extending beam members having wooden inserts to which plywood panels are nailed, the arrangement constituting a form. In use, a pair of such forms are spaced apart by tie rods extending from one form to the other form and concrete is poured between the facing plywood panels. Selected of the strong-back members may be provided with brackets which assist in ensuring that the form is in correct vertical alignment to the ground and other brackets may be provided to cooperate with the strong-back members in order to support a walkway and a safety-fence.

Abstract: The invention relates to a device for constructing a structure constituted of a floor and vertical walls (9) in concrete, comprising an external framework (2) made up of panels erected on a lower levelled surface (1) and comprising at its upper part an outer peripheral bracket (7) and a carriage (12) capable of being moved and guided along the said peripheral bracket, the said carriage forming a movable frame for removable casting components (15).Application to the field of construction and civil engineering.

Abstract: Apparatus for successively lifting sliding molds during construction of concrete buildings and the like having a variable cross-section of straight or curved walls includes a plurality of yoke structures for supporting the sliding molds, each yoke structure being associated with a hoist means. Each of the yoke structures comprises a lower traverse secured to a hoist means, an upper traverse, spaced inner and outer yoke posts extending between and pivotally secured to the traverses and an adjustable brace extending between the outer yoke post and the upper traverse such that the traverses and inner and outer yoke posts form a parallelogram yoke structure which may be adjusted by the brace. Each of the yoke structures is displaceably secured to a star beam system permitting radial movement of the yoke structures therealong. An annular framework system including work platforms is connected to the yoke structures and adapted to be arranged tangentially at the periphery of the building.

Abstract: A method and apparatus for forming a structure having an inner surface in the form of at least one segment of a sphere. An inner support is mounted at a fixed point from which a radius can be struck to define the inner surface of the structure. An elongated radial member is pivotally connected at one end to the inner support with its other end being movable vertically and horizontally. A forming member at the other end of the elongated member has an outer surface in the shape of the inner surface of the segment to be formed. An actuator moves the elongated member horizontally and vertically to selected positions to place the outer surface of the forming member opposite and adjacent the inner surface of each segment being formed. A forming material is applied to the outer surface of the forming member while it is opposite and adjacent the inner surface of the segment being formed to form each segment directly on the forming member.

Abstract: A method of constructing a poured concrete structure protected from corrosive agents includes applying large-surface sealing elements to one surface of the structure before pouring the concrete. The sealing elements are attached to anchoring elements extending into a region into which concrete is to be poured. When the concrete is poured inside the sealing elements, the sealing elements are anchored in place by the anchoring elements which become set in the concrete. The sealing elements may have a high modulus of elasticity and be relatively rigidly affixed to the structure of may have a low modulus of elasticity and thus require overlapping perimeter areas for sealing of adjacent sealing elements.

Abstract: In a slipform arrangement comprising a plurality of oblong, substantially rectangular mold plates arranged sequentially in a manner such that their end portions overlap each other there is provided an elongate post-like mold plate support means adjacent a short edge of an associated mold plate such as to support said plate in spaced relationship therewith, thereby to leave a gap for accommodating an end portion of a sequential mold plate, and tensioning means for creating in the region of said short edge a tensioning force directed substantially in the long direction of the post-like mold support. That part of the mold plate located nearest said short edge can be slightly angled towards the mold plate support means.