Detachable and reusable shear wall earthquake-proof performance test loading rack and test method

Abstract

The invention relates to a detachable and reusable shear wall earthquake-proof performance test loading rack and a test method. The test loading rack comprises a wall steel frame apparatus, a loading connecting apparatus, and an anti-sidesway module, wherein the wall steel frame apparatus comprises a loading beam, a steel frame wall, and steel frame wall fulcrum bars; two sides of the steel frame wall are provided with inclined strut type wall fulcrum bars; the wall fulcrum bars are in fixed connection with the bottom of the steel frame wall and a shear wall test piece floor; a jack is arranged on the square steel tube frame of a hollow part on the steel frame wall; the loading beam is fixed on the upper part of the steel frame wall, and is in connection with the loading connecting apparatus through loading terminals at ends of the loading beam; the anti-sidesway module comprises fixed steel frames and anti-sidesway pull rods; two ends of the anti-sidesway pull rods are respectively hinged to the fixed steel frames and the steel frame wall fulcrum bars in the wall steel frame apparatus. The loading rack can increase the shear span ratio of a shear wall test piece, meet the requirement that the shear span ratio is greater than 3 in an earthquake-proof performance test, apply axial pressure to the shear wall test piece, and meet requirements for different axial compression ratios required by a shear wall test.

Description

technical field [0001] The invention relates to an aseismic performance test of a prefabricated concrete-filled steel tube composite shear wall, in particular to a detachable and reusable anti-seismic shear wall that can increase the shear-span ratio of a shear wall specimen to meet the requirements of the aseismic performance test and that can apply axial force Performance test loading frame and test method. Background technique [0002] With the improvement of the industrialization of modern buildings, prefabricated structures have been more and more widely used in the field of construction, and their application scope has developed from low- and middle-rise structures to high-rise and super high-rise structures. Compared with the disadvantages of large construction noise, serious pollution, heavy manual labor and long construction period of cast-in-place concrete structures, prefabricated concrete structures have great potential and research and development value. The as...

AI Technical Summary

Problems solved by technology

Many experts and scholars have also conducted research on the seismic performance of assembled monolithic structures, but the shear-span ratio of wall specimens is often difficult to satisfy. In order to simulate the seismic performance of shear wall structures as realistically as possible, it is necessary to develop a multi-functional loading frame. To meet test and engineering requirements

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