Method for designing structure with stiction energy dissipater

Abstract

The invention provides a method for designing a structure with stiction energy dissipaters. The method comprises the following steps: predicting a required additional damping ratio; determining the additional damping ratio according to main calculation parameters; determining the distribution positions of energy dissipaters according to a certain principle and determining the quantity of the energy dissipaters; according to the calculated average energy consumed by the energy dissipaters under an earthquake effect, selecting the type of the energy dissipaters; if the difference between the main calculation result of a non-linearity time interval analysis method of an energy-dissipation shock-absorption unit and the main calculation result of an elastic time interval analysis method with the additional damping ratio is not greater than 10%, determining that the additional damping ratio value is reasonable; analyzing the performances of an energy-dissipation shock-absorption structure under a macroquake by use of a non-linearity power time interval analysis method; after damping ratio and performance verification, performing energy-dissipation shock-absorption structure design with conventional design software by use of a simplified linearity method. According to the design method, iterative calculation is not needed, the problem of repeated iterations in additional damping ratio calculation is avoided, and the safety degree of the simplified linearity analysis method is also ensured.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and relates to a design method of an energy-dissipating and shock-absorbing structure, in particular to a structural design method for setting a viscous energy dissipator. Background technique [0002] The traditional anti-seismic technology of building structures is to resist earthquakes by enlarging the cross-sectional size of components, adding multi-component reinforcement, and improving structural stiffness and strength. The device and structural components jointly resist the earthquake action through the method of "combining rigidity and flexibility, and combining resistance and elimination", which can effectively reduce the earthquake disaster of the building structure itself. The energy-dissipating and shock-absorbing device has good hysteresis performance and strong energy dissipation capacity. It will not be damaged in earthquakes and can withstand multiple earthquakes....

AI Technical Summary

Problems solved by technology

However, it is difficult to arrange evenly along all floors, so the damping force provided by the energy dissipation devices on each floor is not the same, and the forced decoupling mode decomposition method has certain errors

When the arrangement or quantity of the energy dissipator changes, the additional damping ratio also changes accordingly, and the additional damping ratio needs to be determined by iterative calculation, which is cumbersome to calculate

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