Full-assembly-type buckling-restrained brace with linear inner core capable of being replaced directly

Abstract

The invention relates to a full-assembly-type buckling-restrained brace with a linear inner core capable of being replaced directly and belongs to the field of structural engineering. The full-assembly-type buckling-restrained brace is constituted by two linear inner core components, an assembly-type periphery restraining device, two inner core outer side connecting cover plates and a first high-strength bolt group. On the basis of the inner core sectional assembly-type design concept, the axial pressure is transmitted through the linear inner core components in a sectional jacking mode, and axial tension is transmitted through the inner core outer side connecting cover plates and the first high-strength bolt group. The plastic developing areas of the inner core components are controlled by arranging dog bone weakening parts or grooving weakening parts on the linear inner core components, thus the two inner core components can be pulled away from the periphery restraining device to bereplaced only by disassembling the first high-strength bolt group and the inner core outer side connecting cover plates after an earthquake while the buckling-restrained brace meets basic bearing andenergy consumption, the disadvantage that when a traditional assembly-type buckling-restrained brace replaces an inner core, the periphery restraining device further needs to be disassembled is overcome, and the post-earthquake repairing work is optimized.

Description

technical field [0001] This patent relates to a fully-assembled anti-buckling support that can directly replace the inline core, and belongs to the technical field of structural engineering. Background technique [0002] The anti-buckling support is composed of inner core member and peripheral restraint device. The inner core member bears axial pressure, and the peripheral device constrains the lateral displacement of the inner core member, so that the full section yields under the action of axial pressure. Since the Hanshin Earthquake in Japan and the Northridge Earthquake in the United States in the 1990s, anti-buckling braces have undergone a lot of engineering practice in some developed countries such as the United States and Japan. " and "energy dissipation under large earthquakes", making it one of the best energy-dissipating and shock-absorbing components, and it has been rapidly popularized and applied in recent years. [0003] At present, for the prefabricated anti...

AI Technical Summary

Problems solved by technology

[0007] The present invention proposes a fully-assembled anti-buckling support that can directly replace the in-line inner core, aiming to solve the disadvantages of the existing assembled anti-buckling support that need to disassemble the peripheral restraint device and cannot directly replace the inner core components during post-earthquake repairs , improve efficacy and timeliness, optimize post-earthquake repair work, and provide more options for fabricated anti-buckling braces

Images