A self-supported PC column joint part. A plurality of accommodation pieces is buried in the upper surface of a lower member to which a PC column is to be joined, has accommodation spaces having open upper parts, and has female threads. A support bar is provided in a pocket formed in the lower end of the PC column, and includes a body coupled to the upper surface of the pocket to protrude and a head at the lower end of the body so as to be accommodated inside the accommodation space. A fixing piece has a through-hole formed in the center thereof such that the body of the support bar passes therethrough, and has threads formed on the outer peripheral surface thereof so as to be screw-coupled to the accommodation piece, thereby fixing the head of the support bar.

The disclosed building construction system with split precast horizontal floor supports combines the strength and ease of construction of pre-cast concrete, with ease of transportation of cast-in-place concrete. The system avoids the requirement of casting difficult shapes by breaking the complex T-shape sections of prior patents into separate flat pieces. The formwork for flat pieces is simpler than that of complex items that include both long and wide components. For examine, T-shapes and cross-shapes are hard to cast and difficult to transport because these shapes do not sit flat, and thus must be supported at their ends. Instead of this complex casting and transport, the slabs are separated into shapes that can later be placed around the columns. This simulates the strength of a fully-precast system, while reducing the precast costs and transportation costs.

A structure enables free and reasonable designing of a cross section of an end of a steel beam in accordance with bending stress and a housed state of a PC steel, thereby providing an economic and reasonable building as a whole. A beam end block includes end plates and an anchor plate. The end plates are fixed at an end surface of an H-section steel in a direction substantially perpendicular to the longitudinal direction of the beam. The anchor plate is fixed to the H-section steel separately from the end plates, on a side opposite to a column, in a direction substantially perpendicular to the longitudinal direction of the beam. An end of the steel beam has an upper part and a lower part. The upper part protrudes toward the column more than the lower part and is mounted on a cogging. The beam end block has a height dimension larger than the height dimension of the H-section steel and has a lower end that is disposed at substantially the same height as a lower end of a side surface of the cogging facing the lower part of the end of the steel beam.

The invention provides a method of securing external wall insulation (EWI) panels to the outer walls of a high rise building of large panel construction. The method comprises first identifying the location of internal voids (7) in outermost floor/ceiling panels (2) of the building; and then creating continuous passages through the outer load-bearing wall panels (1) of the building into the located internal voids (7), each such passage forming a tie bar anchorage hole extending at least half a metre into the adjacent floor/ceiling panel. Down the length of each tie bar anchorage hole is inserted a tie bar (10) which has at an inner end portion (11) an anchorage (13,14) and which has at an outer end portion (12) an externally screw-threaded portion which projects from the outer load-bearing wall panel. A pattress plate (17) is located at the outer end of each tie bar anchorage hole, with the externally screw-threaded outer end portion of each tie bar extending through an aperture in the associated pattress plate (17). The pattress plates are secured in position in or against the outer load-bearing wall panels (1). A grouting compound (20) is then extruded past each pattress plate (17) or through an eccentric grout injection hole (19) in each pattress plate (17) and into the tie bar anchorage holes around the tie bars (10). Once the grouting compound (20) has set, a metal framework (25,26) for supporting external wall insulation for the building is bolted to the projecting externally screw-threaded end portions (12) of the tie bars (10), and EWI panels are secured to the metal framework (25,26) to clad the building.

The present invention relates to a reinforcing structure of unexpired concrete building floors used for reinforcing a concrete column, a concrete beam and a concrete floor slab. The structure has: at least one external column each of the at least one external column wrapping around the concrete column; at least one framework each wrapping around the concrete beam; a plurality of brackets fixedly mounted to the lower surface of the concrete floor slab, and a base plate disposed at the bottom of the concrete column, wherein the bottom of each of the at least one external column is fixed to the base plate, the top of each of the at least one external column is fixed to a corresponding one of the at least one framework, and the corresponding framework is fixed to the plurality of brackets along a length direction of the concrete beam.

Improved designs for embedded anchors that may be utilized to attach panels to other structures are described. An anchor includes a chassis and a leg. The chassis defines a mounting plate with a top surface and a downturned edge region projecting from the mounting plate in a direction substantially normal to the top surface. The bonding leg projects from the downturned edge region and is narrower than the downturned edge region. The bonding leg defines a proximal bonding leg region projecting from the downturned edge region in a direction normal to the top surface that transitions through a curved intermediate bonding leg region into a distal bonding leg region projecting from the curved intermediate bonding leg region in a direction parallel to the top surface. These anchors are easy and economical to manufacturer, and also provide a strong structural bond with panels due to the anchors' unique designs.

A dry process connected energy-consuming beam column joint based on a corbel includes a prefabricated concrete corbel column, pre-buried steel plates and connecting steel plates, wherein the corbel section of the prefabricated concrete corbel column is stepped, and a notch section of a prefabricated concrete notch beam is matched with the stepped section of the corbel and is in lap joint to the stepped section; the pre-buried steel plates are separately pre-buried on the upper and lower surfaces of the corbel and the prefabricated concrete notch beam, friction plates are arranged outside the pre-buried steel plates, and slight tooth spaces are arranged on the sides, facing the pre-buried steel plates, of the friction plates; and the connecting steel plates are arranged on the left and right sides of the prefabricated concrete notch beam and the corbel lap joint section.

An inter-column anchor engages a top surface of header above a corresponding column, and the foundation below the corresponding column. The header anchor and/or the foundation anchor are adjustable to increase or decrease tension. The header anchor and foundation anchor are joined by a cable that may be grossly adjustable in length to accommodate various column heights. The elements of the inter-column anchor may be organized into a kit for distribution.

Improved designs for embedded anchors that may be utilized to attach panels to other structures are described. An anchor includes a chassis and a leg. The chassis defines a mounting plate with a top surface and a downturned edge region projecting from the mounting plate in a direction substantially normal to the top surface. The bonding leg projects from the downturned edge region and is narrower than the downturned edge region. The bonding leg defines a proximal bonding leg region projecting from the downturned edge region in a direction normal to the top surface that transitions through a curved intermediate bonding leg region into a distal bonding leg region projecting from the curved intermediate bonding leg region in a direction parallel to the top surface. These anchors are easy and economical to manufacturer, and also provide a strong structural bond with panels due to the anchors' unique designs.

An apparatus, system, and method is provided to connect precast concrete panels to a structural member. The connector can have a receiving member embedded in a precast concrete panel and can further have an attachment member that selectively interconnects to the receiving member. This attachment member can have a surface that is oriented substantially perpendicular to the precast concrete panel and that receives or supports a structural member such as a floor joist or a second precast concrete panel. The configuration of a protrusion of the attachment member allows for a rapid and secure interconnection with an aperture in the receiving member. A builder can use the connector system described herein to rapidly and securely assemble multiple precast concrete panels to structural members in the construction of, for example, a parking garage or other similar structure.