Robustness method based on storey drift

Abstract

The invention relates to a robustness method based on storey drift, which comprises: regarding storey as a link of pillar relative to the overall framework importance coefficient proposing storey importance coefficient of pillar based on storey drift; the coefficient changes and quantizes the importance of the traditional pillar to the overall framework into specific story and numerical value thereof reflects impaction of pillar to the storey, especially the minus value represents the anti-seismic property of the pillar to the storey has negative influence; combining the coefficient with the storey vulnerability coefficient and establishing detailed index and method of assessing frame structure robustness. The conclusion based on the method can truly reflect the robustness of the practical project in different intensity geological process, point out the pillar of the storey of the overall framework robustness, and play a guidance role in the FRP reinforcement design of the overall framework robustness.

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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