62results about How to "Easy to repair after earthquake" patented technology

The invention discloses a steel coupling beam capable of being replaced after a strong earthquake, which comprises a replaceable energy dissipation beam section and non-energy-dissipation beam sections arranged at the two ends of the replaceable energy dissipation beam section. The replaceable energy dissipation beam section and the non-energy-dissipation beam sections are connected through end plates and high-strength bolts; the height of the section of the replaceable energy dissipation beam section is lower than that of the section of the non-energy-dissipation beam section; the replaceable energy dissipation beam section is uncoupled with a floor slab; the yield bearing capacity of the non-energy-dissipation beam section is larger than that of the replaceable energy dissipation beam section; the replaceable energy dissipation beam section shears yielding and dissipates earthquake energy under the effect of strong earthquake, and the non-energy-dissipation beam sections at the two ends maintain elasticity; and as the replaceable energy dissipation beam section is uncoupled with the floor slab, not only can the cracking of the floor slab under the effect of earthquake be reduced, but also the energy dissipation beam section can be rapidly replaced after the earthquake. The steel coupling beam has high energy dissipation, can be rapidly repaired after the earthquake, is convenient for construction, can enhance the capacity of rapid function recovery of high-rise structures after the strong earthquake, and has wide market promotion and application prospects.

The invention discloses a detachable assembled high-ductility steel-concrete composite beam and belongs to the technical field of steel structures of structural engineering. A steel beam and a precast concrete floor are assembled through bolts. Bolt holes are reserved in the upper wing edge of the I-shaped steel beam, the bolts are pre-buried at the bottom of the precast concrete floor and welded or mechanically connected with transverse steel bars at the bottom, so that the ductility and the anti-collapse capability of the structure are improved under the action of a strong shock. During assembly, the precast concrete floor is built at the top of the upper wing edge of the I-shaped steel beam, the bolts pre-buried at the bottom of the precast concrete floor penetrate the bolt holes reserved at the upper wing edge of the steel beam, and then the steel beam and the floor are fastened by nuts. When the service life of the structure is up, the bolts are unscrewed and the precast floor and the steel beam are separated to realize disassembly. The novel composite beam has the advantages of a traditional cast-in-place composite beam, is simple in assembly construction, high in speed and low in cost, and can effectively prevent dust raising on a construction site; post-earthquake repair and replacement of damaged members are facilitated; and the detachable assembled high-ductility steel-concrete composite beam can be detached in the service period or after service termination, and has a wide engineering application prospect.

The invention discloses a novel self-reset friction damper, and belongs to the technical field of energy dissipation and shock absorption of civil engineering structures. The structure of the damper is that the two sides of an outer covering steel plate concrete connecting section are respectively provided with a profile steel connecting section; anchoring steel bars are welded to the outer sides of the profile steel connecting sections, and are poured in a reinforced concrete main structure simultaneously; the bottom ends of the outer covering steel plate concrete connecting sections and the bottom ends of the profile steel connecting sections are connected through friction energy dissipation plates; the outer covering steel plate concrete connecting sections are connected with the profile steel connecting section on one side or the profile steel connecting sections on the two sides through a plurality of prestressed cables. When the main structure deforms under seismic excitation, the prestressed cables anchored on the outer sides of profile steel are extended, and self-reset tension force is provided; meanwhile, the friction energy dissipation plates connected between the profile steel and the concrete connecting sections deform relatively, seismic energy is dissipated, and energy dissipation and shock absorption are achieved.

The invention discloses a fabricated steel structure beam and column joint capable of consuming energy in an earthquake. The fabricated steel structure beam and column joint comprises a column with asleeve, a steel beam, cross-shaped bolt sliding grooves formed in the connecting face of the sleeve and the steel beam, a high-strength bolt for connecting the steel beam with the column, and rubber damping pads arranged in the sleeve. The column with the sleeve and the beam end are connected together through the high-strength bolt; the rubber damping pads are arranged in the sleeve and located onthe contact surface of the beam end and the column, the beam end impacts the rubber damping pads in the earthquake, and thus damage of impact between components to the structure is reduced; and the column with the sleeve is prefabricated through a factory, the bolt sliding grooves can be formed in the top face, the bottom face, the front face and the rear face of the sleeve according to beam andcolumn connection needs, under the earthquake effects of different directions, the bolt can slide in the different directions of the cross-shaped sliding grooves, and thus the purpose that the joint can consume the energy under the earthquake effects of the different directions is achieved.

The invention relates to a shear wall-support structure system. Support systems are arranged among shear wall limbs to form the shear wall-support structure system. The support systems can utilize steel rod pieces, concrete-filled steel tube rod pieces and fiber reinforce plastic (FRP) confined concrete rod pieces, and damping members or damping devices can be arranged in the support systems. According to the structure system, anti-seismic and energy dissipation capabilities of concrete shear wall structures can be improved, material performances are played fully, the brittle failure of the structure can be prevented, and the shear wall-support structure system has the advantages of being convenient to construct and easy for restoration after shaking.

The invention provides an assembly type filler wall system provided with a steel frame and capable of achieving repositionable rigid connection and a construction method of the system. The system comprises the rectangular steel frame composed of steel frame columns and steel frame beams and a precast filler wall plate, and the steel frame is filled with the precast filler wall plate. The upper end of the precast filler wall plate is connected with the upper steel frame beam through a repositionable rigid connection component, and the lower end of the precast filler wall plate is fixed to the lower steel frame beam in a welded mode. A gap between the filler wall plate and the upper steel frame beam, a gap between the filler wall plate and the left steel frame column and a gap between the filler wall plate and the right steel frame column are filled with a flexible material. Plastering layers are arranged on the two side surfaces of the filler wall plate and on the two side surfaces of the flexible material. The installation and construction of a filler wall do not involve any wet work, complete industrialization is achieved, the wall plate can be recycled, and the assembly type filler wall system and the method accord with the currently advocated green construction idea. Compared with an existing masonry filler wall, the masonry time and manpower input are saved, the construction efficiency is improved, installation is convenient and efficient, construction is convenient to implement, and the construction cost is reduced. The assembly type filler wall system and the method can widely used in the construction of an assembly type filler wall with the steel frame.

The invention relates to a detachable fabricated steel structure closed section column-column connecting node. The column-column connecting node comprises a lower column, an upper column, a sleeve andhigh-strength bolts. Bolt holes are reserved in the sleeve and the steel columns, and a nut is fixed by a special fixing device at the bolt hole reserved at the inner side of one end of the sleeve. When the connecting node is assembled, the sleeve and the lower column are connected and fixed by the traditional high-strength bolts, then the upper column sleeves the upper part of the sleeve, the reserved bolt holes of the sleeve are aligned with the reserved bolt holes of the upper column, then bolt rods traverse the reserved bolt holes from the outer side of the column, and the nuts pre-arranged in the inner side of the sleeve are unilaterally screwed in to realize the fastening of the upper column and the sleeve. When the service life expires and the connecting node is dismounted, the bolt rods are screwed off to separate the upper column and the sleeve. The steel structure closed section column-column connecting node has the advantages of high rigidity, insignificant increase of thesection area of a node area, simplicity in assembling and constructing, convenience in restoration after earthquake and replacement of damaged members, and convenience in dismounting of the structureafter the expiry of the service life.

The invention discloses a fabricated structural beam-beam artificial plastic hinge connection joint and a construction method thereof. The fabricated structural beam-beam artificial plastic hinge connection joint comprises a prefabricated reinforced concrete beam, a prefabricated reinforced concrete beam column sub-structure, pin shafts, lug plates, end plates and anchor bars; and in a beam area,1 / 5L-1 / 4L and 3 / 4L-4 / 5L from column central line, of the beam-beam artificial plastic hinge connection joint, a bending moment value in the beam area is correspondingly less than 0.2 time of a mid-span bending moment value and 0.15 time of a beam end bending moment value. The invention further discloses a construction method of the fabricated structural beam-beam artificial plastic hinge connection joint. The beam-beam artificial plastic hinge connection joint is designed far away from a beam-column joint, thus the integrity of the fabricated structure and the reliability of the joint are improved, by weakening the rigidity of the connection joint, a connection joint area yields before the beam-column joint to generate plastic hinge, thus seismic objectives of 'strong column and weak beam'and 'strong joint and weak part' are realized, and post-earthquake repair is more convenient and economical than cast-in-situ structure; and meanwhile, the construction process is simplified, the construction quality is guaranteed, the practicability is high, and the popularization and use are facilitated.

The invention relates to the technical field of earthquake-proof building structures and provides an X-shaped arranged anti-bending support structure and a connecting method thereof. The structure comprises a first anti-bending support component and two second anti-bending support components, wherein the two second anti-bending support components are respectively fixed with a middle joint of the first anti-bending support component, so that one first anti-bending support component and two second anti-bending support components are arranged in X shape. In the scheme, the two second anti-bending support components are respectively fixed with the middle joint of the first anti-bending support component, so that one first anti-bending support component and two second anti-bending support components are arranged in X shape and the structure has the advantages of high lateral rigidity, capability of saving construction space and post-earthquake resetting function.

The invention discloses a quakeproof bed joint water-proof structure for an outside hall of a high-rise building and a construction method. The quakeproof bed joint water-proof structure for the outside hall of the high-rise building comprises two sections of edge beams, water-proof belts and protective steel plates, a quakeproof bed joint is reserved between the edge beams, the upper ends of the edge beams extend in the opposite directions to form weak cornices, and a narrow seam smaller than 50mm is formed between the weak cornices. The water-proof belts are arranged above the narrow seam, and the bottom faces of the water-proof belts are adhered to the top faces of the edge beams. The protective steel plates are arranged on the water-proof belts, and the protective steel plates are fixed to the edge beams through shooting nails and / or expansion bolts. The weak cornices are adopted in the quakeproof bed joint water-proof structure, so that the narrow seam is formed in the upper end of the quakeproof bed joint, water is conveniently resisted, walking is convenient, and meanwhile the requirement for daily normal temperature deformation can be met. Encountering a strong shock, the quakeproof bed joint water-proof structure is easily damaged, but people cannot be hurt by dropped objects, the seismic requirement is met, and post-earthquake repair is also facilitated.

The invention discloses a fabricated steel structure beam-column energy dissipation connector. The connector comprises a first connecting steel beam, a second connecting steel beam and two energy dissipation plates, wherein the first connecting steel beam and the second connecting steel beam are horizontally arranged between a steel column member and a steel beam member, one end of the first connecting steel beam is fixed to the steel column member, the other end of the first connecting steel beam is hinged to one end of the second connecting steel beam, the other end of the second connectingsteel beam is fixed to the steel beam member, hinge shafts of the first connecting steel beam and the second connecting steel beam are horizontally arranged, the two energy dissipation plates are symmetrically arranged on the upper side and the lower side of the first connecting steel beam and the second connecting steel beam, and the two ends of the energy dissipation plates are detachably fixedto the first connecting steel beam and the second connecting steel beam correspondingly. According to the connector, by means of the mutually hinged connecting steel beams, a relatively weak area is formed at the beam end of a steel frame beam-column joint area, the controllability of a beam end shaping hinge is achieved, the energy dissipation plates can effectively absorb earthquake capacity, damage to a beam-column joint of a steel structure is avoided, the overall anti-seismic property of the structure is improved, post-earthquake repair is facilitated, and the repair and reinforcement cost is obviously reduced.

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 provides a low-damage joint of assembled self-resetting concrete frame with modular energy consumption parts, including prefabricated reinforced concrete columns, prefabricated reinforced concrete beams, pre-embedded steel plates at column ends, pre-embedded shaped steel sleeves at beam ends, and soft steel damping device, unbonded prestressed steel strand, prestressed steel strand channel, high-strength hinged hole bolts; one side of the embedded steel plate at the column end is the anchor end, and the other side is the butt plate at the column end; the embedded section steel at the beam end The inner wall of the steel sleeve is welded with a shear key, and the steel web at the beam end is the butt plate at the beam end. The mild steel damper is arranged at the steel web at the beam end, fastened on both sides of the web by high-strength reamed hole bolts, and the beam-column components are connected by prestressed steel strands.

The lead core tenon limit damper system can simultaneously prevent the beam body from falling longitudinally, transversely and vertically in an earthquake, and can also play a role in shock absorption and energy consumption. All components are replaceable and modular The product is convenient for post-earthquake repair and replacement. It includes a steel tenon and a steel snap. The steel tenon includes a head, a buckle fixing section, a tapered section and an anchor plate from top to bottom, wherein the tapered section has a tapered cavity, and the tapered cavity is filled with a lead core. The outer end of the steel tenon is engaged with the buckle fixing section, and the inner end thereof is a bottom plate. The steel tenon and the steel buckle are arranged on the outside of the pad stone in the direction of the transverse bridge. The steel tenon is fixed and installed on the top of the pier through the high-strength bolt assembly passing through the mounting hole on the anchor plate, and the steel tenon is fixed on the top of the pier. The buckle is fixedly installed on the side wall of the beam body through the high-strength bolt assembly passing through the mounting hole on the bottom plate.