Abstract: An H-beam joint structure for joining ends of H-beam steel materials adjacent to each other. The steel materials have a flange and a web. The joint structure includes: a transmission plate arranged parallel to a front surface of the web on at least one side of the web of the H-beam and the steel material, and welded to a back surface of the flange; and a coupling plate provided in close contact with the transmission plate to connect the H-beam and the steel material. A web of the H-beam, the web of the steel material and the transmission plate are bolted via the coupling plate. As a result, there is provided an H-beam joint structure which has a joining strength equivalent to a conventional joint structure for an H-beam, and also which can easily be constructed to have less parts and make front surfaces of the flanges flat.

Abstract: A rebar structure includes a plurality of column longitudinal bars to be connected to a beam. The yield point or the 0.2% proof stress of at least a portion the column longitudinal bars is larger than the yield point or the 0.2% proof stress of a normal reinforcing bar defined by JIS G 3112.

Abstract: A main reinforcing bar has a strength transition portion between a normal strength portion and a high strength portion. The high strength portion is arranged in a joint section. The boundary between the normal strength portion and the strength transition portion is configured as a deigned point. The designed point is designed such that, at the time of an earthquake, the main reinforcing bar yields at the designed point before the main reinforcing bar yields at the root of the beam at of the joint section. The boundary between the high strength portion and the strength transition portion is located in the joint section, and the root of the beam is located at the strength transition portion. The strength of the strength transition portion at the root of the beam is equal to or higher than the required strength.

Abstract: A rebar structure includes a plurality of column longitudinal bars to be connected to a beam. The yield point or the 0.2% proof stress of at least a portion the column longitudinal bars is larger than the yield point or the 0.2% proof stress of a normal reinforcing bar defined by JIS G 3112.

Abstract: A shear stud including a plate section adapted for connection to a structural support element and one or more shaft sections that project from the plate section, the one or more shaft sections adapted to hold concrete in place relative to the structural support element and resist shear loading.

Abstract: A building anchor system includes a pair of elongate anchor rods (1,2), an anchor rod coupling joint (3) for joining the anchor rods end-on-end, the anchor rod coupling joint comprising or including a sleeve (4, 5, 6 & 7) for connection to an end of one of the anchor rods (1) a slideable arm (8) receivable in the sleeve for connection to an end of the other anchor rod (2) a closed slot within the arm or sleeve for slideably receiving the free end of a stop member (13) by which movement of the anchor rods along their major axis is possible to the extent allowed by the length of the slot, and frictional adjustment means (6,7) acting between the arm and the sleeve by which they may be joined and by which the force required to move them with respect to each other can be selectively varied. The invention also extends of a method of preventing or inhibiting catastrophic structural failure of a building by installing one or more anchor systems of the type described.

Abstract: A flange connection system for a concrete structure comprising a plurality of adjacent precast concrete members including a platform having a center panel and a first and second flange extending outward from the center panel in opposing directions. The system includes a first and second bent plate each having a horizontal member attached to the bottom surface of the adjacent flanges and a vertical member perpendicular to the horizontal member. The system includes a spacer plate extending in a vertical direction from about a lower edge of the first vertical member to below the first horizontal member and secured between the vertical members of the first and second bent plate with a plurality of fasteners. The first and second vertical member may flex at an upper portion allowing adjacent flange ends to move relative to one another.

Abstract: A composite building construction system comprising a frame, an expanded wallboard, and a concrete layer. The wallboard comprises an outer portion and inset portion wherein the wallboard is attached to the frame with the outer portion covering an exterior side of the frame and the inset portion is disposed within the frame. The wallboard thus provides exterior and interior insulation for the system. The concrete layer is sprayed on to the outer portion of said wallboard, forming a strong durable composite construction system. One or more rebar supports may be attached to the frame at the exterior side by key bolts and are spaced apart from the wallboard. A wire grid may be attached to the key bolts whereby the grid and the rebar supports provide a support structure for the concrete layer. The frame comprises steel and the wallboard comprises insulative expanded polystyrene.

Abstract: A connector comprising a container-like fastener holder (4) of finite depth with a front (6) and a rear plate and side walls (8) wherein the rear wall and substantially the whole depth of the holder can be cast into a concrete structure to form a space within the concrete structure, fastening means (12) which can assume a range of positions within the holder (4) and a move able connection part (16) or device which can be fastened to the front plate (6) by the fastening means (12).

Abstract: A composite building construction system comprising a frame, an expanded wallboard, and a concrete layer. The wallboard comprises an outer portion and inset portion wherein the wallboard is attached to the frame with the outer portion covering an exterior side of the frame and the inset portion is disposed within the frame. The wallboard thus provides exterior and interior insulation for the system. The concrete layer is sprayed on to the outer portion of said wallboard, forming a strong durable composite construction system. One or more rebar supports may be attached to the frame at the exterior side by key bolts and are spaced apart from the wallboard. A wire grid may be attached to the key bolts whereby the grid and the rebar supports provide a support structure for the concrete layer. The frame comprises steel and the wallboard comprises insulative expanded polystyrene.

Abstract: A sound barrier wall suitable for new installations and for retrofitting existing sound barrier walls includes a plurality of vertically extending posts and a plurality of wall sections disposed between pairs of the posts. The posts may have generally I-shaped cross sections with oppositely disposed channels defined by flanges on opposite sides of the posts. The sound barrier may further include post covers coupled with the respective posts. The post covers may have lip portions that are received over the flanges of the posts. The wall sections are received within the respective channels and may contact at least one of the lip portions of the post covers.

Abstract: A latticing drop panel structure includes a plurality of columns (100 or 101) or walls, and a connecting member (210) including a concrete drop panel (219) having a cross-section area larger than that of the column (100 or 101) or the wall, wherein the connecting member (210) having four unit rods 212, surrounded around the drop panel (219) in a latticing form, wherein the unit rods (212) are parallel with the respective sides of the column and cross at the same level, whereby sagging displacement of the slab is reduced due to the existence of the drop panel.

Abstract: Methods and apparatus for coupling adjacent concrete panels increase the tolerance for setting. Connections members are placed in at least one of the adjacent concrete panels. In one embodiment a first connection member is placed in a first panel and a second connection member is placed in a second panel. A plate is placed over the first and second connection member. Fasteners are inserted through the plate and into each connection member to secure the adjacent panels together. In a second embodiment a rotatable connection member is placed in a first panel. The rotatable connection member includes a first rod rotatably coupled to a second rod. The second panel is placed on the first panel. The connection member is rotated from its first position to its second position and is secured to the second panel. The connection members may be cast in the panels during production.

Abstract: A foundation, particularly a foundation of a wind turbine, is provided. The foundation includes a central foundation member and a plurality of foundation segments which are segments of a circular, ring shaped or polygonal foundation element and which are connected to the central foundation member using a plurality of locking elements.

Abstract: An uniquely improved mortar less masonry structure comprising a plurality of concrete masonry units connected to each other by metal bars and metal threaded fasteners thereby forming a reinforcing skeletal system for the masonry to utilize a post tensioned structure. The unique system has been developed with full recessed channels in the masonry unit, anchor bars that fit into the channels and extend across a plurality of masonry units and bolts that act as the tendon for the post tensioning system. This is an improved, rapidly constructed building system that demountably couples each individual masonry unit by an extended bar and bolt system. This extended bar is more efficient and easier to build with as compared to other traditional masonry structures.

Abstract: The present invention discloses an attachment system for use in a building comprising a plurality of first wall sections, a plurality of horizontal planks resting on the first wall sections, and a plurality of second wall sections resting on the horizontal planks. The system includes a plurality of threaded rods holding the system together, and may be made of concrete or similar material. The system may be disassembled and reassembled without affecting the structural integrity of the building.

Abstract: A precast wall system and a method for constructing a high-rise building using the precast wall system is disclosed. The system includes a plurality of interconnected precast panels. Each precast panel has a top end plate, a bottom end plate, a plurality of vertical bars disposed between and attached to the end plates and a cementitious material encasing the vertical bars and defining a plurality of sides of the respective panel. A first group of the interconnected precast panels are arranged vertically on a second group of the interconnected precast panels and the top end plate of each panel corresponding the first group is connected to the bottom end plate of a respective one of the panels corresponding to the second group. Methods for horizontally and vertically connecting the precast panels to each other are also disclosed.

Abstract: A building system including a plurality of supports structured to be vertically disposed in an underlying surface in spaced apart relation from one another, and a plurality of support headers removably disposed on an exposed end of each of the supports. Each support header includes a mounting hub that removably engages the exposed end of the support. A span element is further provided and extends between adjacent supports, each span element including a lock element that matingly engages a corresponding engagement element at the supports so as to removably secure the span element in position. A reinforcement panel formed of a stiff, open grid configuration is suspended from the span element along with an application panels.

Abstract: The invention concerns a reinforced concrete or prestressed concrete part stressed by shearing forces with layers of reinforcement (22, 24) provided at its upper and lower sides. For shear protection at least one sheet metal reinforcing part (30, 32, 34, 36) is provided between these layers of reinforcement which mainly extends at right angles to a surface of the reinforced concrete part and mainly over the entire distance between the layers of reinforcement (22, 24) and crosswise to at least one crack (50) occurring in the reinforced or prestressed concrete part under transverse load.

Abstract: A connecting system for connecting first and second mesh sheets each defining a plurality of longitudinal members at least one pin housing, a first pin member, and a second pin member. A first loop portion is formed on at least one of the plurality of longitudinal members of the first mesh sheet. A second loop portion is formed on at least one of the plurality of longitudinal members of the second mesh sheet. At least one pin housing defines a loop passageway, and the first and second loop portions extend in opposite directions through the loop passageway. The first pin member is arranged between the first loop portion and the at least one pin housing. The second pin member is arranged between the second loop portion and the at least one pin housing. Loads that displace the first and second mesh sheets away from each other are transferred between the mesh sheets by the pin housing and the first and second pin members.

Abstract: A system of building concrete homes and apartment buildings. The system creates a structure that is well insulated and that is very practical and economical to build. The system uses standard components such as wall ties, concrete forms, rigid foam insulation, and concrete, all of which are readily available in the market today. The system creates a building that is insulated and thermally broken at its structural connections such that use in temperate and colder climates is possible. Presently concrete construction finds only limited use for the construction of single family and multi-family housing. The system is economical to construct when compared to wood frame housing.

Abstract: Disclosed is a building construction system and structural modules for erecting structures such as walls quickly, easily, and effectively.

Abstract: An assembly type wall structure is disclosed. The assembly type wall structure may be used as a vertical wall in an interior space and includes a plurality of wall units. Each wall units together to form a wall and may connect this wall with the corresponding ceiling, walls and floor of the interior space. Hence, the assembly type wall structure may be used as a vertical wall in an interior space and has the advantages of fast and simple implementation.

Abstract: A pre-cast cementitious construction element (10a) comprises a body (12), at least one coupling member (14) protruding from an edge (16) of the body and at least one coupling member (18) provided at an opposed edge (20) of the body. The at least one coupling member protruding from an edge is adapted to couple with a coupling member at an opposed edge of an adjacent pre-cast construction element (10b) such that, when coupled, a spaced relationship exists between the pre-cast construction element (10) and the adjacent pre-cast construction element (10b).

Abstract: A device for affixing a building element to a supporting element, comprising a guide housing for attachment to the building element or the supporting element. Mounted in the guide housing are at least one movable telescopic member and at least one pull-out cable which is fastened to an attachment point in the telescopic member. The attachment device further comprises at least one return cable fastened to the telescopic member and passed round a winding point to a location for operation of the attachment device or a stop strip for restriction of the extended length of the telescopic member. The attachment device may advantageously be used for affixing concrete elements or affixing staircase elements.

Abstract: A connecting system for connecting a mesh sheet to a concrete member. The connecting system comprises an anchor structure and a first pin member. The anchor structure defines a loop passageway and a pin opening. The anchor structure is adapted to be partly embedded within the concrete member. A mesh loop portion is formed on the mesh sheet. The mesh loop portion extends into the loop passageway. To connect the mesh sheet to the concrete member, the first pin member extends along the pin opening and through the mesh loop portion of the mesh sheet. Force applied to the concrete member away from the mesh sheet causes the first pin member to engage the anchor structure and the mesh loop portion to inhibit movement between the mesh sheet and the concrete member.

Abstract: A connecting system for connecting a first mesh sheet to a member comprising a housing member, a first loop portion, and a first pin member. The housing member defines a loop passageway, and the housing member is adapted to be rigidly connected to the member. The first loop portion is formed on the first mesh sheet and extends into the loop passageway. The first pin member extends through the first loop portion of the first mesh sheet such that a force applied to the first mesh sheet away from the housing member causes the first pin member to engage the housing member and the loop portion to inhibit movement between the first mesh sheet and the member. In one preferred embodiment, the member is a concrete panel. In another preferred embodiment, the member is a second mesh sheet.

Abstract: The invention concerns a girder in reinforced concrete that has a flat intrados (11) and a flat or sloping extrados (12), which consists of two symmetrical halves or girders (13, 14) with adjacent parts that meet in a plane mid-way (15), perpendicular to the intrados, and equipped, near the extrados (12), with connecting plates for bolting (16) and, near the intrados (11), with a joint device (17) that has bars which are parallel to the intrados.

Abstract: A method and apparatus for positioning mild steel reinforcing bars within a precast, moment resisting frame of a building. The apparatus includes a hand-receiving access component that can be installed within the concrete beams that make up the building frame so as to permit convenient access to the reinforcing bars that are slidably carried within bar receiving passageways formed within the concrete beams. Additionally, the apparatus includes a bladder-receiving component that can be installed within the concrete beams that make up the building frame in a manner to permit an expandable bladder to be conveniently positioned within the cable receiving passageways formed in the beam. When in position within a cable-receiving passageway, the expandable bladder spans the interface between the beam and the column and effectively prevents grout from entering the cable passageway during the grouting step.

Abstract: A wall-unit structural system has wall units (1) with insulating structural material (2) intermediate an exterior panel (3) for fixation of outside covering and an interior panel (4) for attachment of inside wall surfacing (5). Attachment ridges (6) are spaced apart on the interior panel to provide channels or vacancies between the attachment ridges for positioning of plumbing, electrical and other lines. Tie-down members (8) such as rebar are attached vertically to the wall units for securing the wall units to the footing (21) and for securing elevated tie-down structure (20) such as roofing and/or higher sections of wall units to secured wall units in accordance with applicable building regulations and design preferences. Bottoms (12) of the wall units have attachment members (15) for attachment to base elements such as floors (14), concrete pads, footers, metallic frame bases, wooden frame bases and other structural bases.

Abstract: A wind resistant concrete building is disclosed. The building includes a concrete base section and a wall section that has a plurality of discrete concrete wall panels. Each wall panel interengages and extends substantially perpendicularly from at least one other wall panel to reinforce the wall section. Each pair of interengaging wall panels are fastened together and the wall section is secured to the base. A precast concrete roof section including at least one roof panel mounted to the wall section and the roof section is attached to each of the wall panels.

Abstract: A knot for connecting pillars and girders includes a first member adapted to be mounted on a pillar, and a plurality of second members which are each adapted to be connected to a respective girder. The number of second members is equal to the number of girders to be coupled with the pillar. The first member is made up of an upper plate and a lower plate that are coaxial and vertically spaced with respect to each other. These plates each have a number of sides equal to the number of the girders that converge onto the knot. The first member has a first coupling. The lower and upper plates are vertically coupled to each other by joining tongues which have second couplings. The second member has first and second horizontal plates which are vertically spaced from each other, and these plates are provided with a third coupling that couples with the first coupling of the first member. The first and second plates are joined by a transverse vertical plate and a longitudinal vertical plate.

Abstract: A connecting assembly is disposed between a concrete column and at least one beam having upper and lower flanges. The connecting assembly has upper and lower connecting members and a tubular member disposed between the connecting members. The upper and lower connecting members are mounted on the upper and lower flanges of the beam, respectively. Each of the connecting members has at least one through-hole in which concrete of the column is filled, so that the column is partly encased by the tubular member. Accordingly, the column is connected to the beam.

Abstract: A shearhead for reinforcing junctions between for example vertical columns and horizontal floors where at least the floor is formed in reinforced concrete. The shearhead is in the form of a hoop bar for extending around a column with a plurality of shear legs depending therefrom. Each shear leg includes a portion extending above the hoop bar, which portion forms a hook for coupling to reinforcement in the slab of concrete extending laterally from the column.

Abstract: A shearhead for reinforcing junctions between for example vertical columns and horizontal floors where at least the floor is formed in reinforced concrete. The shearhead is in the form of a hoop bar for extending around a column with a plurality of shear legs depending therefrom. Each shear leg includes a portion extending above the hoop bar, which portion forms a hook for coupling to reinforcement in the slab of concrete extending laterally from the column.

Abstract: A concrete reinforcement device includes a plurality of spaced vertical reinforcement rods 12, and tiers of horizontal connecting plates 10, 11 to space and interconnect the reinforcement rods 12, the connecting plates in each tier having a peripheral edge provided with spaced apart notches 15 which are engaged with the vertical reinforcement rods 12 respectively and connected firmly therewith by welding, the connecting plates 10, 11 in each tier confining a hole for the passage of concrete.

Abstract: A precast reinforced concrete exterior wall panel is connected in a building between supporting columns by connectors which enable the panel to carry lateral shear loads in the building. As precast, the panel includes encased but not embedded steel straps which extend end to end in the panel for carrying loads applied to the panel ends via the connectors. The connectors include face abutting mating moieties. The mating faces of each moiety defines a regularly repeating grid pattern of projections and recesses so arranged that the moieties are engageable in face abutting relation with the projections of each engaged in the recesses of the other at any of a plurality of discrete relative positions of the moieties. When so engaged and clamped together, the connector moieties cooperate to carry shear loads across the plane of the mated faces. One moiety is connected to a panel strap end and the other is embedded in or affixed to an adjacent column.

Abstract: A method of interfacing mechanical and concrete components of a pump comprising a concrete volute entails simultaneously placing two metal rings in recesses provided in a suction orifice and in a well of the volute of the pump. This is done using a jig having two molding surfaces spaced from each other by a predetermined axial distance and placed at a position near the rings. Each of the rings is embedded in a hardenable resin which is molded by the two molding surfaces on the jig. This forms two annular resin blocks having molded surfaces. These molded surfaces are used as respective support surfaces for a sealing ring and for a cover in which the rotor of the pump is rotatably mounted.