37results about How to "Reduce formwork works" patented technology

The invention aims at providing a fiber reinforce plastic (FRP) reinforced concrete-filled steel tube combination column which comprises a steel tube, a hoop rib, an FRP reinforced rib and a longitudinal reinforcement, wherein the hoop rib and the FRP reinforced rib are arranged in the steel tube; the inner wall of the steel tube is provided with fixed angle iron; the end part of the FRP reinforced rib is fixed on the angle iron; the FRP reinforced rib is provided with a hole, and the hoop rib passes through the hole in the FRP reinforced rib; the longitudinal reinforcement is fixed on the hoop rib; the steel tube is filled with concrete. An FRP reinforced rib plate internally provided with the hoop rib and the longitudinal reinforcement is arranged in the FRP reinforced concrete-filled steel tube combination column, and the concrete can be separated again, so that the restraint effect of the concrete is improved, the bearing capacity of the concrete is improved, and the tube wall on the stressed side is effectively prevented from being bended. By adopting a structure of enabling reinforced concrete, the FRP reinforced rib and the steel tube to cooperative work, the FRP reinforced concrete-filled steel tube combination column is simple in structure and convenient to construct, and has the characteristics of being light in weight, high in carrying capacity and good in ductility and shock resistance.

The invention provides a dismountable assembly type circular steel tube concrete column. The dismountable assembly type circular steel tube concrete column mainly comprises an upper circular steel tube concrete column, a lower circular steel tube concrete column, a column flange connecting piece, two semicircular steel plates with holes and a pulling-resistant connecting pair. Structural measures of the circular steel tube concrete columns and the column flange connecting piece are reasonably designed, the pulling-resistant connecting pair is adopted for splicing the circular steel tube concrete columns, then grouting is carried out from the reserved semicircular holes of the semicircular steel plates, and finally, the dismountable fabricated circular steel tube concrete column is formed. When the circular steel tube concrete columns are replaced, a bolt bar is dismounted, so that the circular steel tube concrete columns and the column flange connecting piece are taken down, and further removal and replacement of the circular steel tube concrete columns are realized. The dismountable assembly type circular steel tube concrete column has the advantages that all the components are connected in a field assembly manner, building industrialization assembling efficiency is improved, dismounting, separating and replacing functions of an assembly type combined structure column-column component are realized, and a novel energy-saving and environment-friendly architectural concept that a building component can be dismounted and altered is shown.

The invention discloses an external heat preservation linear composite wall with lead pipe-coarse sand energy dissipation and seismic reduction keys and a construction method and belongs to the technical filed of building energy saving and seismic resistance. Linear composite wallboards are mainly composed of recycled concrete wallboard bodies, EPS heat preservation modules, PVC pipes, the lead pipe-coarse sand energy dissipation and seismic reduction keys, lead pipes, coarse sand, galvanized thin steel sheet cover boards and bolts. The lead pipe-coarse sand energy dissipation and seismic reduction keys are adopted to be fabricated in the PVC pipes of reserved holes in the upper and lower composite wallboards when the upper and lower composite wallboards are assembled. The linear composite wall is provided with two seismic resistance defensive lines and has the good energy dissipation and seismic reduction functions. The defect of the poor seismic resistance capacity of a fabricated concrete wall is overcome. A lead pipe-coarse sand seismic reduction control device and the novel constructed fabricated composite wall are combined organically to form the seismic resistance, energy saving and fireproofing integrated wall. Meanwhile, according to the composite wall, recycled concrete materials are utilized, thus recycling development of building garbage is facilitated, and environmental benefits are obvious.

The invention discloses a prefabricated external thermal-insulation Z-shaped composite wall provided with lead pipe-coarse sand energy-dissipation and damping keys and a manufacturing method, and belongs to the technical field of energy conservation and earthquake resistance of buildings. The Z-shaped composite wall is mainly composed of a recycled concrete wall board, an EPS thermal-insulation module, PVC pipes and the lead pipe-coarse sand energy-dissipation and damping keys. The lead pipe-coarse sand energy-dissipation and damping keys are adopted and assembled into the PVC pipes in holes reserved in the upper and lower composite wall boards when the upper and lower composite wall board are spliced. The Z-shaped composite wall is provided with two defense lines for earthquake resistance and has good energy-dissipation and damping performance. By adoption of the composite wall and the manufacturing method, the defect that the thermal insulation performance of an ordinary concrete wall is poor is overcome, and the shortcoming that the earthquake resistance of a prefabricated concrete wall is poor is overcome at the same time; and lead pipe-coarse sand damping control devices and the prefabricated composite wall of a novel structure are organically combined, and the earthquake-resisting, energy-saving and fireproof integrated wall is formed. Meanwhile, the composite wall adopts a recycled concrete material, building waste recycling development is facilitated, and the environment benefits are obvious.

The invention discloses a fabricated linear heat preservation wall with lead pipe-coarse sand energy dissipation and seismic reduction keys and a construction method and belongs to the technical filed of building energy saving and seismic resistance. The linear heat preservation wall is formed by fabricating of two or more upper and lower fabricated linear heat preservation wallboards. The linear heat preservation wallboards are mainly formed by combined fabricating of linear calcium silicate boards on the two sides, middle sandwich light foaming cement wallboard bodies, circular pipe fixing pieces with wings and the lead pipe-coarse sand energy dissipation and seismic reduction keys, wherein the lead pipe-coarse sand energy dissipation and seismic reduction keys are composed of lead pipes, coarse sand, galvanized thin steel sheet cover boards and bolts. The disadvantage of the poor heat preservation property of a common concrete wall is changed, and meanwhile the defect of the poor seismic resistance capacity of a fabricated concrete wall is overcome. A lead pipe-coarse sand seismic reduction control device and the novel constructed fabricated heat preservation wall are combined organically to form the seismic resistance, energy saving and fireproofing integrated wall. Meanwhile, according to the heat preservation wall, foaming cement environment-friendly construction materials are utilized, thus environmental benefits are obvious.

The invention discloses an external-heat-preservation type cross-shaped composite wall body with lead pipe-coarse sand energy-dissipation damping keys and a construction method and belongs to the technical field of building energy saving and earthquake resistance. The cross-shaped composite wall body is mainly composed of reclaimed concrete wall plates, an EPS heat preservation module, PVC pipes and the lead pipe-coarse sand energy-dissipation damping keys. According to the external-heat-preservation type cross-shaped composite wall body with the lead pipe-coarse sand energy-dissipation damping keys and the construction method, the lead pipe-coarse sand energy-dissipation damping keys are adopted and assembled in the PVC pipes of reserved holes in an upper composite wall plate and a lower composite wall plate when the upper composite wall plate and the lower composite wall plate are spliced. The cross-shaped composite wall body is provided with two earthquake fortification lines and thus has good energy-dissipation damping performance. The disadvantage that an ordinary concrete wall body is poor in heat preservation is changed, and meanwhile the defect that a fabricated concrete wall body is poor in earthquake resistance is overcome. A lead pipe-coarse sand damping control device and a fabricated composite wall body of a novel structure are organically combined, and thus the earthquake-resistance, energy conversation and fireproofness integrated wall body is formed. Meanwhile, the composite wall body utilizes a reclaimed concrete material, development of building garbage recycling is facilitated, and environmental benefits are obvious.

The invention discloses a method for reinforcing a damaged reinforced concrete column by adopting a prefabricated component with sleeves. A prefabricated reinforced concrete component (1), the sleeves(2), embedded steel bars (3) with anchor heads and post-cast strips (4) are mainly included. The prefabricated reinforced concrete component is composed of pre-buried longitudinal bars, pre-buried stirrups, constructed pulling bars and concrete. The method comprises the steps that the reinforce concrete with the damaged plastic hinge at the bottom end of the concrete column is dismantled, the prefabricated reinforced concrete component replaces the dismantled concrete, the joint is integrally connected with the original column through the post-cast strips, and finally the column with the improved performance after reinforcing is formed. According to the method, the prefabricated component is adopted for assembling and reinforcing the damaged reinforced concrete column on site, the damagedpart at the column end is quickly dismantled and reinforced, all the prefabricated components can achieve industrialized production, on-site assembling and connection reduces the workload of wet construction on site, the reinforcing efficiency is effectively improved, the quality of reinforcing construction can be easily ensured, and the new concept that an assembling method is adopted for reinforcing the damaged structure is shown.

The invention discloses a light steel frame-steel rope brace-small diameter log jointed board-composite board surface layer combined wall with a straight-line-shaped section and a manufacturing method, and belongs to the technical field of building energy conservation and shock resistance. A light steel column in a light steel frame is a vertical bearing component, C-shaped steel or U-shaped steelor a rectangular steel tube serves as a beam column, and beam column joints are welded. Pre-stressed steel rope braces are obliquely crossed, and the pre-stressed steel rope braces and the light steel frame form a light steel frame pre-stressed flexible supporting truss structure. A small diameter log jointed board has an enclosure function, also serves as a disassembly-free formwork and is connected with the light steel frame to form a cavity, and the cavity is filled with foamed polyphenyl granule lightweight concrete to form a thermal insulation layer. The self-weight of the structure is reduced, advantage combination of light steel and a small diameter log is achieved, so that the wall has a traditional building style and the anti-seismic performance is improved. In order to ensure that the wall is flat, firm and attractive, the composite surface layer board is attached to the outer side of the small diameter log jointed board, and the light steel frame-steel rope brace-small diameter log jointed board-composite board surface layer combined wall is formed.

The invention discloses a fabricated external heat preservation L-shaped composite wall body with energy-dissipation damping keys and a construction method thereof and belongs to the technical field of building energy saving and earthquake resistance. According to the fabricated external heat preservation L-shaped composite wall body with the energy-dissipation damping keys and the construction method thereof, the lead pipe-coarse sand energy-dissipation damping keys are adopted and assembled in PVC pipes of reserved holes in upper composite wall plates and lower composite wall plates when the upper composite wall plates and the lower composite wall plates are spliced. Two earthquake fortification lines are arranged on the L-shaped composite wall body, and good energy-dissipation damping performance is achieved. The disadvantage that an ordinary concrete wall body is poor in heat preservation is changed, and meanwhile the defect that a fabricated concrete wall body is poor in earthquake resistance capacity is overcome. A lead pipe-coarse sand damping control device and a fabricated composite wall body of a novel structure are organically combined, and thus the earthquake-resistance, energy-saving and fireproof integrated wall body is formed. Meanwhile, according to the composite wall body, reclaimed concrete materials are utilized, thus building garbage reclamation development is facilitated, and environmental benefits are obvious.

The invention discloses a one-step molded machine tool fixing foundation. The one-step molded machine tool fixing foundation comprises I-shaped steel, pre-welded flat plates, adjusting blocks, spherical screws, studs, conical washers and nut assemblies, wherein the pre-welded flat plates are welded at the bottom of the I-shaped steel, the pre-welded flat plates and the I-shaped steel are jointly embedded in a foundation, and the upper surface of the I-shaped channel is exposed out of the foundation; the adjusting blocks are fixedly arranged on the upper surface of the I-shaped steel; one ends of the spherical screws are in threaded connection with the adjusting blocks, the other ends of the spherical screws are threaded locking ends and spherical threaded flange are arranged at the middle sections; the conical washers are sheathed on the spherical screws and are matched with the threaded flanges at the middle sections of the spherical screws through threads; the studs run through the axes of the spherical screws and the adjusting blocks, and the nut assemblies are arranged at the threaded locking ends of the spherical screws for locking the studs. The one-step molded machine tool fixing foundation has the advantages that the stability, the firmness and the vibration resistance of the machine tool foundation are increased and the adjustability of the height of the machine tool can be guaranteed.

The invention discloses an external heat preservation T-shaped composite wall with lead pipe-coarse sand energy dissipation and seismic reduction keys and a construction method and belongs to the technical filed of building energy saving and seismic resistance. T-shaped composite wallboards are mainly composed of recycled concrete wallboard bodies, EPS heat preservation modules, PVC pipes and the lead pipe-coarse sand energy dissipation and seismic reduction keys. The lead pipe-coarse sand energy dissipation and seismic reduction keys are adopted to be fabricated in the PVC pipes of reserved holes in the upper and lower composite wallboards when the upper and lower composite wallboards are assembled. The T-shaped composite wall is provided with two seismic resistance defensive lines and has the good energy dissipation and seismic reduction functions. The disadvantage of the poor heat preservation property of a common concrete wall is changed, and meanwhile the defect of the poor seismic resistance capacity of a fabricated concrete wall is overcome. A lead pipe-coarse sand seismic reduction control device and the novel constructed fabricated composite wall are combined organically to form the seismic resistance, energy saving and fireproofing integrated wall. Meanwhile, according to the composite wall, recycled concrete materials are utilized, thus recycling development of building garbage is facilitated, and environmental benefits are obvious.

The invention discloses a fabricated L-shaped heat preservation wall body with lead pipe-coarse sand energy-dissipation damping keys and a construction method thereof and belongs to the technical field of building energy saving and earthquake resistance. An L-shaped heat preservation wall plate is mainly formed by combining and assembling calcium silicate plate bodies on the two sides, a sandwiched light foaming cement wall plate body in the middle, winged circular pipe fixing pieces and the lead pipe-coarse sand energy-dissipation damping keys, wherein the lead pipe-coarse sand energy-dissipation damping keys are composed of lead pipes, coarse sand, zinc-plated thin steel sheet cover plates and bolts. According to the fabricated L-shaped heat preservation wall body with the lead pipe-coarse sand energy-dissipation damping keys and the construction method, the lead pipe-coarse sand energy-dissipation damping keys are adopted and assembled in circular holes of the winged circular pipe fixing pieces in an upper heat preservation wall plate body and a lower heat preservation wall plate body when the upper heat preservation wall plate body and the lower heat preservation wall plate body are spliced. The winged circular pipe fixing pieces arranged on the heat preservation wall plate and used for assembling the lead pipe-coarse sand energy-dissipation damping keys are simultaneously connected with the sandwiched light foaming cement wall plate body and the calcium silicate plate bodies on the two sides. Two earthquake fortification lines are arranged on the L-shaped heat preservation wall body, and good energy-dissipation damping performance is achieved. Meanwhile, according to the heat preservation wall body, a foaming cement environmentally-friendly building material is utilized, and thus environmental benefits are obvious.

The invention discloses a light steel-steel cable-small diameter material-composite board surface layer L-shaped section combined wall and a manufacturing method thereof. A light steel column of a light steel frame is a vertical load bearing member; a beam column adopts a C-shaped steel, U-shaped steel or rectangular steel pipe; and beam column joints are welded. Prestressed steel cable supports are obliquely and crosswise arranged to form a light steel frame prestressed flexible supporting truss structure with the light steel frame; small diameter splicing plates play an enclosure role and serve as non-detachable templates; the small diameter splicing plates are connected with the light steel frame to form a cavity; the cavity is filled with expanded polystyrene particle light concrete toform an insulating layer; and the self-weight of the structure is reduced, and the advantage combination of light steel and small diameter wood is realized, so that the wall has a traditional architectural style and improved anti-seismic performance. In order to ensure that the wall is flat, firm and attractive, composite facing plates are attached to the outer sides of the small diameter splicing plates to form the light steel frame-steel cable support-small diameter splicing plate-composite board surface layer L-shaped section combined wall.

The invention relates to a semi-fabricated reactive powder concrete-plain concrete (RPC-PC) bundle shear wall composite structure. The semi-fabricated RPC-PC bundle shear wall comprises a lower end beam, shear columns and an upper end beam. Two ends of the shear columns are fixedly connected with the lower end beam and the upper end beam respectively; and each shear column comprises a reactive powder concrete outer formwork and plain concrete filled in an inner space of the reactive powder concrete outer formwork. The RPC-PC bundle shear wall uses material advantages of RPC to improve a stress performance and an anti-seismic performance and also to improve a fire resistance, an impact resistance, a corrosion resistance and the like. Besides, the RPC is prefabricated into the outer formwork of the shear wall to form the outer formwork of the RPC-PC bundle shear wall. The combination form can save a large number of wood formworks and steel formworks. The semi-fabricated RPC-PC bundle shear wall has a small influence on the surrounding environment, improves working efficiency, particularly reduces a later maintenance cost, and has a wide engineering use prospect.

The invention discloses an SMC-FRP-concrete combination column and relates to a building member. The concrete combination column comprises a concrete column body, FRP bars, FRP plates and an SMC mould which is enclosed outside, wherein the FRP bars and the FRP plates are poured in the concrete column body. The connecting parts of the FRP plates are fixed with sealing angles; inner ribs are arranged on the inner side of the SMC mould subjected to sand binding; an SMC sleeve is arranged inside the FRP plates; the SMC composite material mould pressing mould is a combined column mould; and a bound FRP bar cage, the FRP plates with the connecting parts being fixed with the sealing angles and the SMC sleeve are placed inside the mould sequentially and are filled with concrete. The concrete combination column utilizes the advantages of lightweight, high strength and corrosion prevention of FRP composite materials and SMC composite materials and is suitable for the intensive corrosion environment of coastal and insular cities; and the SMC mould has high plasticity, a manufactured finished product is attractive in appearance, the process is simple, meanwhile, in the construction process, the formwork engineering is reduced, and resource energy consumption is reduced.