176results about How to "Reduce earthquake damage" patented technology

The invention discloses a shear wall with an inbuilt continuous-row steel tube concrete core column and a soft steel energy consumption bond and a manufacturing method thereof, belonging to the field of steel tube concrete combined shear wall. The shear wall comprises a combined steel tube concrete frame and a shear wall body, wherein the shear wall body comprises a steel tube concrete core column and a soft steel energy consumption bond, and the left end and the right end of the steel plate energy consumption bond are fixedly connected with the core column and the steel tube concrete frame; two sides of the continuous-row core column are provided with longitudinal and transverse mat reinforcements, and reinforcements on two sides are connected by binding rebars; soft steel energy consumption short steel plates the strength of which is smaller than that of the steel plate are arranged between the core columns and between the core column and a frame column, thus greatly improving the ductility and the flexural rigidity of the shear wall; meanwhile, because the short steel plate is equivalent to a connecting beam, the effect of invisible 'strong column and week beam' can be realized; and the soft steel energy consumption bond, the concrete wall body, the frame column and the core column jointly form three defensive lines of a lateral force resisting system. The invention adopts the steel tube concrete core column and the soft steel energy consumption bond as the lateral force resisting system, improves the vertical rigidity and the bearing capacity of the shear wall, has the advantages of convenient construction and shortened construction period and is more economical.

The invention relates to a shear wall, in particular to a profile steel concrete-punching steel plate-concrete combined shear wall and a manufacturing method thereof. The shear wall is limited by a profile steel concrete column and formed by a steel plate combination structure which is covered with concrete outside and provided with holes; the shear wall is provided with the steel plate, and then two sides of the steel plate are configured with a reinforcing mesh formed by reinforcing steel bars which are distributed transversely and longitudinally, and a drawknot rib that passes through the holes is used for connecting the reinforcing meshes at the two sides of the steel plate together; finally, the concrete is poured. The profile steel concrete-punching steel plate-concrete combined shear wall can improve the carrying capacity, reduce the attenuation speed of rigidity and carrying capacity, lead the later period shakeproof performance of the wall to be relative stable, and weakens the damage caused by cutting and gliding at the bottom.

The invention relates to a steel-tube concrete frame-steel frame-concrete composite shear wall and the manufacturing method, belonging to a shear wall and the manufacturing method. The shear wall comprises frame and shear wall board. Steel bar mesh made by steel bar group in transversal and longitudinal directions is made in shear wall board. Linked rib (11) is set between steel bar meshes. Between two rows of steel bar meshes concealed section steel support (2) and concealed steel bar (9) support are set. Section steel beam (4) is set in frame beam and steel tube concrete frame columns (3) are set at two ends of shear wall. The combination of section steel beam (4), steel tube concrete frame column (3), concealed section steel support (2) and concealed steel bar support (9) is set in shear wall and steel frame (1) is set in the concrete shear wall. The concealed support can be combined in BA-shape, X or V-shape. The shear wall in invention is provided with large initial rigidity, high load capacity, slow attenuation of load capacity and rigidity, good total aseismic consumed energy behavior, relative stability of later aseismic performance and lessened damage of bottom shear slip.

The invention involves a section steel concrete column with special lateral section and methods and belonging to the field of special-shaped columns. The shape of the cross-section of special-shaped column is the cross-section which combined by circular and rectangular or two or more rectangular. The framework of steel reinforcement with the cross-section of circular or rectangular comprises of vertical bars (2) and stirrup (3) together, the section steel (1) is installed in the framework of steel reinforcement, the section steel (1) is continuous forming a unit in the special-shaped column which comprise of section steel knitting (4) and section steel flange (5), reinforced bar sections (6) or rivets are welded on the outside of the section steel flange (5). The invention improves the ductility and the forced ability of the prior reinforced concrete special-shaped column, increases the bearing ability.

The invention relates to an inner hidden vertical mild steel energy dissipation belt shear wall and its manufacturing method. The shear wall is set bar mat formed by lateral and vertical distribution reinforcing bar. Its features are that the middle of the shear wall is set a vertical joint; the distance between its upper end and shear wall top end is one to two times of the thickness of the shear wall section; its lower end is connected with base; steel plate is set between the side surface of the vertical joint; and the X shape mild steel plate is set between them; X shape lead block is formed between the X shape mild steel plate and vertically connected with connecting plate to form X shape damper; the connecting plate is connected with the steel plate; polyphenylene material is filled around the damper; the outer of the shear wall is used as mortar floated coat. Compared with the current shear wall, the invention has the advantages of better ductility, energy dissipation capability, and more antiknock line of defense.

An earthquake damper for building is composed of base with arc recesses, elastic ring body, rolling balls and cover plate. The method for constructing its earthquake-damping building includes steps such as driving foundation piles, arranging the bases of earthquake dampers, casting concrete at pile base, installing said earthquake dampers, pouring concrete of foundation, and construction other parts.

The invention relates to a bottom double composite section steel shear wall with a reinforced concrete frame and an inside-hidden steel plate as well as a manufacturing method. The shear wall comprises a steel reinforced concrete composite frame column, a mild steel energy-consuming steel plate and a shear wall steel plate, which is a double composite column comprising the composite of the externally-adhered mild steel energy-consuming steel plate and a concrete filled steel tube column and the composite of the concrete filled steel tube and a reinforced concrete column and is a multiple combination body comprising the combination of a reinforcing bar and concrete, the combination of a steel plate and the concrete and the combination of a steel reinforced concrete frame column and a steel plate shear wall. Compared with a conventional shear wall, the shear wall provided by the invention has the advantages of high initial stiffness, high bearing capacity, slow bearing capacity and stiffness attenuation, good whole anti-seismic energy-consuming performance and relatively stable later-stage anti-seismic performance; the bottom shear-slip damage is little; and after a mild steel casing pipe is added, the outer mild steel casing pipe is firstly surrendered so as to consume the energy in the structure input by earthquake and can give play to the effects of resistance and ductility till being destroyed, therefore, the premature damage and destroy of the high-strength steel plate can be prevented and delayed.

The invention relates to a reinforced concrete platy stair with a simple sliding support and a construction method, which belong to the field of civil engineering and are mainly used for building engineering. The reinforced concrete platy stair is a cast-in-place concrete platy stair, the upper end of a stair section plate and an upper-end supporting component connected to a main body structure are in integral casting, and the simple sliding support is arranged at the lower end of the stair section plate. The method includes that the stair section plate and a lower-end supporting component or a stair beam bridging piece are separately provided with bars and are in pouring separately, the lower end of the stair section plate is shelved on the lower-end supporting component, the upper surface of the lower-end supporting component is a smooth and flat horizontal plane, a plastic film isolating layer is fully laid on the horizontal plane, so that the lower-end supporting component is isolated from the lower end of the stair section plate, the sliding support is formed and is used as a pouring bottom formwork at the lower end of the stair section plate during construction, and the lower end of the stair section plate is also isolated from a building surface layer of the supporting component. The problem that the stair is broken in advance during earthquake and adverse influences to the main body structure are avoided due to the sliding support, earthquake damage is relieved, and the reinforced concrete platy stair is simple, economical and durable, and can be widely used for multiple high-rise building structures and particularly concrete structures.

The invention discloses a steel pipe concrete-steel support-steel plate outer packed concrete shear wall and making method thereof, belonging to a shear wall and making method thereof. The shear wall is composed of steel pipe concrete frame columns (1) and concrete shear wall boards embedded with a steel plate (2), and is characterized in that the two ends of the shear wall are provided with steel pipe concrete frame columns (1), the frame beam is provided with a section steel beam (4), and the steel plate (2) embedded in the shear wall is provided with a steel support (3). Compared with the conventional shear wall, the shear wall of the invention has large initial rigidity, high bearing ability, slow attenuation for bearing force and rigidity, good whole shock resistance and energy consumption performance, stable shock resistance performance, and reduced bottom shearing sliding destroy.

The invention provides a locally-embedded steel pipe concrete column type aseismatic bridge pier, and belongs to the technical field of structural design of bridges. The aseismatic bridge pier comprises longitudinal ribs, stirrups, steel pipes, common strength concrete, high strength concrete and a bridge pier foundation. According to the bridge pier, a steel pipe concrete column is locally embedded to the reinforced concrete bridge pier, the advantage of high ductility of the common strength concrete bridge pier and the advantages of high pressure resistance, high shear resisting, high bearing capacity and high ductility of the steel pipe high strength concrete are fully utilized, and therefore, the shear resistance, the pressure resistance, the bearing capacity, the ductility and the energy consumption capacity of the bridge pier can be improved, the bridge pier can be avoided shearing damaging and bending conquassation, and as a result, the aseismatic performance of the reinforced concrete bridge pier can be effectively improved; the steel pipe concrete column is embedded in the local maximum force bearing range of the bridge pier, so that the purpose of the improving the aseismatic performance of the bridge pier is achieved, and the purpose of minimizing the cost of the bridge pier and the construction difficulty can be reached. The bridge pier can be widely applied to the field of bridge construction design.

The invention discloses a steel pipe concrete-steep support-steel plate combine shear wall and making method thereof, belonging to the field of building construction. The steel pipe concrete-holed steel plate-concrete combine shear wall is characterized in that: the shear wall is composed of steel pipe concrete frame columns (1) and steel plate concrete shear wall boards, and the frame beam is provided with a section steel beam (3). A steel plate (2) embedded in the shear wall is provided with an opening, the two sides of the steel plate (2) are provided with steel bar nets composed of transverse steel bars (4) and longitudinal steel bars (5), and the steel bar nets at two sides of the steel plate (2) are tied by steel tie bars (7) at the opening on the steel plate (2). Compared with the conventional shear wall, the shear wall of the invention has large initial rigidity, high bearing ability, slow attenuation for bearing force and rigidity, good whole shock resistance and energy consumption performance, stable shock resistance performance, and reduced bottom shearing sliding destroy.

The invention relates to a novel shear wall capable of replacing a foot part component, which belongs to the field of constructional engineering. The novel shear wall comprises a shear wall and a shock absorption and shock insulation component, wherein a space is reserved in the foot part of the shear wall, the shock absorption and shock insulation component is arranged in the reserved space, the upper end of the shock absorption and shock insulation component is fixedly connected with the shear wall, the lower end of the shock absorption and shock insulation component is fixedly connected with a building surface component, and the shock absorption and shock insulation component can be symmetrically arranged on the foot part of the shear wall. The invention has the advantages of simple structure and convenient construction, in addition, the foot part can be conveniently replaced after the foot part of the shear wall is damaged, and the structural function of the shear wall can be fast recovered. Compared with the traditional shear wall, the invention greatly reduces the engineering quantity and the difficulty of the reinforcement after the shock.

The invention provides a girder-falling prevention device. The device is arranged on a bridge girder base body and comprises a fixed guide rail, a fixed device and an elastic-plastic device, wherein the fixed guide rail is connected with a bridge girder body; the fixed device is connected with the base body; and the elastic-plastic device comprises a first end in clearance fit with the fixed guide rail and a second end connected with the fixed device. The device has the following advantages that: the device has a simple and reliable structure, is clear in force transferring and bearing and can achieve the effects of preventing girder from falling, dissipating seismic energy and resisting drawing, thus protecting the bridge girder in multiple directions, reducing seismic damage on the bridge girder and guaranteeing life and property safety.

The invention discloses a steel tube reinforced concrete composite column-steel beam-lattice steel support shear wall and a manufacturing method, and belongs to the field of steel-concrete combined shear walls. The steel tube reinforced concrete composite column-steel beam-lattice steel support shear wall comprises steel tube reinforced concrete composite frame columns, steel tube reinforced concrete composite core columns, steel beams, lattice steel supports and a reinforced concrete shear wall body, wherein the two ends of the shear wall are provided with the steel tube reinforced concrete composite frame columns between which a plurality of parallel steel tube reinforced concrete composite core columns are arranged; the steel tube reinforced concrete composite frame columns are connected with the steel tube reinforced concrete composite core columns by the steel beams and the lattice steel supports and all the steel tube reinforced concrete composite core columns are connected by the steel beams and the lattice steel supports; the shear wall reinforcements are bound; and concrete is cast to construct the steel tube reinforced concrete composite column-steel beam-lattice steel support shear wall. The steel tube reinforced concrete composite column-steel beam-lattice steel support shear wall has the advantages of improved bearing capacity, slow attenuation in bearing capacity and rigidity, stable later anti-seismic performance, improved shear wall ductility and energy consumption performance due to existence of the combined steel structure framework, more superior anti-seismic performance, convenience in steel structure construction and capability of being used in high-rise or large-sized complex multi-storey buildings.

A swinging self-resetting dual-deck bridge bent pier based on energy-dissipation angle steel with vertical joints comprises a bent pier foundation, bottom-layer prefabricated concrete filled steel tube pier bodies arranged on the bent pier foundation and filled with self-compacting steel fiber reinforced concrete in a pouring mode, a bottom-layer prefabricated bent cap arranged at the top ends of the bottom-layer prefabricated concrete filled steel tube pier bodies, top-layer prefabricated pier bodies on the bent cap, a top-layer prefabricated bent cap arranged at the top ends of the top-layer prefabricated pier bodies, unbounded prestressed tendons penetrating through the bottom-layer prefabricated concrete filled steel tube pier bodies, the energy-dissipation angle steel with the vertical joints, bolts, steel square keys and the like. All the energy-dissipation angle steel with the vertical joints enables the bottom-layer prefabricated concrete filled steel tube pier bodies to be connected with the bent pier foundation and the bottom-layer prefabricated bent cap through the bolts, and the steel square keys are arranged at swinging joint portions. Under a strong earthquake, the bottom layer of the double-deck bent pier shakes, and the unbounded prestressed tendons provide self-resetting capability. Earthquake damage is concentrated in the energy-dissipation angle steel with the vertical joints, and the energy-dissipation angle steel with the vertical joints can be replaced when damaged after the earthquake and becomes fuses in the structure.

The invention relates to a laminated frame-steel support-concrete combine shearing wall and manufacturing method thereof. The shearing wall is composed of a frame and shearing wall boards. Steel bar nets arranged in double directions are arranged in the shearing boards, steel tie bars (11) are arranged between the steel bar nets, and a section steel concealed bracing (2) is arranged between two rows of steel bar nets. The shearing wall is characterized in that the frame beam is provided with a section steel beam (4), the frame columns at the two ends of the shearing wall are provided with steel pipe concrete laminated posts (3), and the section steel beam (4), the steel pipe concrete laminated posts (3), and the section steel concealed bracing (2) combine to form a concealed steel truss in the concrete shearing wall; and the section steel concealed bracing combination can be in herringbone, X shape or splay. Compared with the conventional shearing wall, the shearing wall of the invention has large initial rigidity, high bearing ability, slow attenuation for bearing force and rigidity, good whole shock resistance and energy consumption performance, stable shock resistance performance, and reduced bottom shearing sliding destroy.

The invention relates to a structure for strengthening anti-seismic performance of a steel frame, in particular to an anti-seismic structure of an energy-consumption angle brace. The anti-seismic structure of an energy-consumption angle brace comprises a frame beam and a frame column, wherein the node position of the frame beam and the frame column is provided with an energy-consumption angle brace plate; and the contact surface between the energy-consumption angle brace plate and the frame beam as well as the contact surface between the energy-consumption angle brace plate and the frame column are respectively fixedly connected by a connecting plate. The anti-seismic structure of an energy-consumption angle brace is favorable for flexible arrangement of frame structure space and is favorable for the arrangement and construction of a filler wall. Under the condition of no seism or under the condition of quaking frequently, the energy-consumption angle brace can perform the action of acommon angle brace to protect the node; under the action of seldom-occurred seism, when the beam and the column have great relative rotation, the energy-consumption plate of the energy-consumption angle brace can yield, energy can be continuously adsorbed and consumed by being continuously pulled and stressed to yield, and on the effects of supporting the beam and the column and protecting the node can be kept so as to protect the safety of the node, avoid node damage and reduce seismic damage.

The invention discloses a prefabricated fabricated pier suitable for a moderate-strong earthquake area and a construction method of the prefabricated fabricated pier. The prefabricated fabricated piercomprises a bearing platform, a pier body, a steel reinforcing cage, a cover beam and prestressed steel bars. The bearing platform is fixed on the top surface of a pile foundation. The steel reinforcing cage is arranged in the pier body. The bottom of the steel reinforcing cage is fixedly connected with the bearing platform. The top of the pier body is fixedly connected with the cover beam. The four prestressed steel bars are distributed in a rectangular shape. One ends of the prestressed steel bars are located in the bearing platform, and the other ends of the prestressed steel bars are located at the top of the cover beam. The steel reinforcing cage comprises a bearing platform steel reinforcing cage and a pier body steel reinforcing cage. The pier body steel reinforcing cage comprisesan energy dissipation steel bar, a longitudinal bar and a stirrup. The pier body comprises common concrete, a bottom UHPC sleeve, a transition UHPC sleeve, a steel plate and a prefabricated segment. According to the prefabricated fabricated pier suitable for the moderate-strong earthquake area and the construction method of the prefabricated fabricated pier, the technical scheme of combination ofthe UHPC sleeves and the common concrete, combination of consolidation and assembling and combination of part of the unbounded energy dissipation steel bar and the steel plate is adopted, and the prefabricated fabricated pier has the advantages of low damage under the earthquake action, high energy dissipation ability, uniform local stress distribution and the like, and can be applied to bridges in the moderate-strong earthquake area.

The invention discloses a damping device used for connecting a pile foundation and a bearing platform and a construction method of the damping device. The damping device comprises the pile foundation and the bearing platform, wherein a groove matched with the pile foundation is formed in the bottom of the bearing platform; the top of the pile foundation is connected with an outer sleeve; an inner sleeve is arranged in the groove; the inner sleeve sleeves the outer sleeve; the outer sleeve is connected with the inner sleeve though an elastic connecting part; the outer sleeve, the inner sleeve and the elastic connecting part form a sealed space; and the sealed space is filled with a buffer layer. In the damping device, the elastic connecting part and the buffer layer effectively absorb earthquake energy, buffer the relative displacement between the pile foundation and the bearing platform, effectively prevent a superstructure on the bearing platform from overturn, and protect the joint of the pile foundation and the bearing platform against irreversible damage, including concrete cracking and reinforcement yielding; and after an earthquake is over, a damping connection structure for the pile foundation and the bearing platform resets under the elastic action of the buffer layer and the elastic connecting part so as to achieve the purposes of protecting the superstructure and guaranteeing the completeness of the foundation.

The invention discloses a steel pipe concrete-holed steel plate-concrete combine shear wall and making method thereof, belonging to the field of building construction. The steel pipe concrete-holed steel plate-concrete combine shear wall is characterized in that: the shear wall is composed of steel pipe concrete frame columns (1) and steel plate concrete shear wall boards; a steel plate embedded in the shear wall is provided with an opening, the two sides of the steel plate (2) are provided with steel bar nets composed of transverse steel bars (4) and longitudinal steel bars (5), and the steel bar nets at two sides of the steel plate (2) are tied by steel tie bars (7) at the opening. Compared with the conventional shear wall, the shear wall of the invention has large initial rigidity, high bearing ability, slow attenuation for bearing force and rigidity, good whole shock resistance and energy consumption performance, stable shock resistance performance, and reduced bottom shearing sliding destroy.

The invention discloses a fabricated self-resetting concrete frame soft steel energy dissipation composite joint. The fabricated self-resetting concrete frame soft steel energy dissipation composite joint includes a prefabricated reinforced concrete column, a prefabricated reinforced concrete beam, soft steel dampers, a pre-stressed steel strand, embedded high-strength bolts and anchored steel bars, wherein the prefabricated reinforced concrete beam is provided with a beam end embedded steel sleeve, and a column end embedded steel plate is arranged at the butt-joint position between the prefabricated reinforced concrete column and the beam end embedded steel sleeve; the pre-stressed steel strand penetrates through a pre-stressed steel strand hole channel of the prefabricated reinforced concrete column, a pre-stressed steel strand opening of the column end embedded steel plate, a pre-stressed steel strand opening of the beam end embedded steel sleeve and the pre-stressed steel strand channel of the prefabricated reinforced concrete beam in sequence, so that the prefabricated reinforced concrete column and the prefabricated reinforced concrete beam are spliced together; and the soft steel dampers are arranged on both sides of a web plate of the section steel part of the beam end embedded steel sleeve. The fabricated self-resetting concrete frame soft steel energy dissipation composite joint enables the prefabricated concrete frame structure to have excellent seismic performance and self-resetting ability under high earthquake intensity.