Seismic Robustness Method Based on Interstory Displacement

Abstract

The invention relates to a seismic robustness method based on interstory displacement. The story is used as the link of the column relative to the importance coefficient of the overall frame, and the story importance coefficient of the column based on the interstory displacement is proposed; the coefficient combines the traditional column to The overall importance of the frame is changed to be quantified to a specific floor, and its value reflects the impact of the column on the floor, especially a negative value means that setting the column has a negative effect on the seismic performance of the storey; The damage coefficient is used to establish specific indicators and methods for evaluating the seismic robustness of frame structures. The conclusion obtained based on the method of the present invention can truly reflect the robustness of actual engineering under different intensity earthquakes, and can point out the layers and columns that control the overall seismic robustness of the frame, and guide the FRP reinforcement design of the frame's seismic robustness effect.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, in particular to an anti-seismic robustness method based on interstory displacement. Background technique [0002] Robustness reflects the sensitivity of a structure to local damage caused by the failure of a certain component or some components, which is higher than the basic requirements of safety, applicability and durability of the structure, and belongs to the high-level performance of the structure. With the gradual increase of urban density and the acceleration of social development, the collapse of structures caused by natural and man-made disasters such as earthquakes and explosions has brought huge losses to people. It is urgent to explore and study the essence of robustness. Find out the key factors that affect it, and give solutions to the problems. [0003] Many scholars have proposed original and practical theories and evaluation procedures for structural robustness. Rib...

AI Technical Summary

Problems solved by technology

The above methods only evaluate the robustness from the reduction of the overall bearing capacity of the frame, and do not find the key parts that affect the robustness of the frame

And the manifestation of progressive collapse is excessive deformation, that is, the robustness is directly related to deformation and not directly related to the change of bearing capacity, so there is no scientific basis for using bearing capacity as an indicator of robustness calculation

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