7results about How to "Reduced seismic response" patented technology

The invention provides a temperature stress releasing structure for a super-long steel structure building, the super-long steel structure building comprises a frame structure formed by columns and beams, the temperature stress releasing structure comprises a sliding support assembly arranged between the columns and the beams in the length direction of the frame structure, one end of each beam is in sliding fit with the sliding support assembly, and the other end of each beam is in sliding fit with the sliding support assembly. The other end of the beam is connected with an adjacent steel column, and the sliding support assembly comprises a cylinder in sliding fit with the beam. The material can generate the phenomenon of thermal expansion and cold contraction when the temperature changes, at the high temperature, the material expands and shows tension force, the distance between the beam used for releasing the temperature stress and the adjacent steel column becomes small, at the low temperature, the material shrinks and shows shrinkage force, and the distance between the beam used for releasing the temperature stress and the adjacent steel column becomes large. The internal temperature stress of the material is remarkable, the temperature stress is directly released through the sliding support assembly, the effect is remarkable, more convenience is achieved, and additional operation is not needed.

The utility model provides a kind of big overhanging rigid-flexible combination space structure system, belong to building construction field.Its technical scheme is: including big overhanging steel structure, internal cable structure and the movable support of the rigid-flexible combination place connecting both, big overhanging steel structure is by outer pipe truss ring beam structure, inner pipe truss ring beam structure, star truss structure and net shell structure constitute, form the whole stiffness very big overhanging main body, internal cable structure is connected with the inner pipe truss ring beam structure of big overhanging steel structure by movable support.The utility model has the beneficial effect that: using rigid structure and flexible structure cooperate, with the coupling stress effect of "rigid-flexible", not only can significantly reduce the seismic response of overall structure, can also improve the wind-induced dynamic response of flexible structure part, simultaneously, big overhanging rigid-flexible combination space structure system effectively improves the structure span capacity, reduces structure deadweight.

The present application relates to a kind of double-column pier system and construction method of quick construction in high-risk seismic area, belong to the technical field of fabricated structure engineering.The double-column pier of construction includes cap beam, pier column, pile cap, pile.The pier column and cap beam are connected by grouting steel pin and slot combination, and the pier column and pile cap are connected by socket and steel pin combination, and the new socket connection node structure of pier column-cap beam / pile cap can better realize mechanical transmission, guarantee the connection reliability and seismic safety of bridge node, the recess of corrugated shape is arranged in the pile cap, and shear stud is arranged below the pier column, which can improve the connection reliability between the pier column and the pile cap, the socket depth of the double-column pier can be reduced to 0.5d by this connection method, and the top grouting method is used to ensure the grouting density.The present application can realize convenient, quick prefabrication and assembly, and has good seismic performance, which guarantees the seismic safety of the system.

The application discloses a metal energy dissipation support, which comprises an outer sleeve connecting end, an inner core rod connecting end and at least one set of energy dissipation modules; the energy dissipation module comprises an outer sleeve and an inner core rod, the inner core rod is provided with a metal energy dissipation plate, the inner wall of the outer sleeve is provided with an energy dissipation limiting component, the inner core rod is arranged in the outer sleeve, and the metal energy dissipation plate on the inner core rod is in limiting cooperation with the energy dissipation limiting component on the inner wall of the outer sleeve; the outer sleeve connecting end is connected with one end of the outer sleeve and forms a certain gap between the inner core rod in the outer sleeve; the inner core rod is connected with the inner core rod in the other end of the outer sleeve and forms a certain gap between the other end of the outer sleeve. The metal energy dissipation support can effectively comprehensively integrate the advantages of traditional metal dampers and buckling restrained braces by adopting the energy dissipation support form and the mode of dissipating seismic energy through metal bending deformation, and is modularized and assembled, so that the practicability is greatly improved.

The invention discloses a static and dynamic load control system and method for a ground-anchored space cable three-tower suspension bridge. The system comprises a ground-anchored space cable three-tower suspension bridge and a static and dynamic load control unit arranged on the ground-anchored space cable three-tower suspension bridge; the ground-anchored space cable three-tower suspension bridge comprises a main beam, a middle tower, side towers, transition piers, anchorages arranged on the main beam, and a spatial linear main cable arranged on the anchorage and the main beam; the static and dynamic load control unit comprises a shock-absorbing and energy-absorbing longitudinal limiting support arranged between the middle tower and a transverse connecting box on the main beam along the longitudinal bridge direction, a shock-absorbing and energy-absorbing wind-resistant support respectively arranged between the middle tower and the side tower and a steel box beam on the main beam along the transverse bridge direction, and a vertical support arranged at the junction of the transition pier and the steel box beam on the main beam; the flutter and wind-resistant stability of the whole bridge is improved by the spatial linear main cable; the longitudinal energy absorption capacity of the bridge is improved by the shock-absorbing and energy-absorbing longitudinal limiting support; and the transverse shock-absorbing capacity of the bridge is improved by the shock-absorbing and energy-absorbing wind-resistant support.

The present invention discloses an assembled anchor bolt positioning device and a construction method, comprising an anchor bolt prefabricated block and a positioning and adjusting prefabricated base, wherein the bottom of the anchor bolt prefabricated block is connected to the top of the positioning and adjusting prefabricated base through a mortise and tenon structure, a plurality of anchor bolts are arranged on the anchor bolt prefabricated block, and the positioning and adjusting prefabricated base is provided with transverse and longitudinal adjustment screws for adjusting the horizontal position of the positioning and adjusting prefabricated base; the positioning and adjusting prefabricated base is provided with vertical screws around it, and the vertical screws are provided with adjustment nuts, and the height of the positioning and adjusting prefabricated base is adjusted by adjusting the adjustment nuts. During construction, the positioning and adjusting prefabricated base is first placed in a foundation pit, and after adjusting the height and horizontal position, the initial casting and fixing is performed, and then the anchor bolt prefabricated block is installed through the mortise and tenon structure, and then the overall casting is performed. The anchor bolt positioning and adjustment of the present invention is convenient, easy to install, has a small positioning error, good stability, and a small seismic response of the structure.

The invention relates to the technical field of civil engineering components, in particular to an ancient building wood framework mortise and tenon joint friction damper which comprises a wood column and a wood beam connected to the wood column in a mortise and tenon mode and further comprises a supporting part installed between the wood column and the wood beam. The whole supporting part can be arranged on the upper side or the lower side of a wood beam joint. Wherein the supporting part is used for providing support under the condition that the wood beam generates small deformation relative to the wood column at a corner; under the condition of large deformation, vibration reduction is provided; through the arrangement of the supporting part, the supporting part can achieve the supporting effect under small and medium earthquakes, and the node rigidity and strength are improved; energy dissipation and vibration reduction are achieved under the action of a large earthquake, the earthquake response of structures such as wood beams and wood columns is reduced, tenon-and-mortise joints are protected, and the service life of the tenon-and-mortise joints is prolonged.