Seismic reliability design method for building seismic support hanger

Abstract

The invention discloses a seismic reliability design method for a building seismic support hanger. The seismic reliability design method is characterized by including: establishing a building-structure three-dimensional spatial analysis model of a to be installed seismic support hanger; generating N seismic-wave acceleration-time curves with probability; calculating floor response spectra at the center of the floor plan of the building structure under input of seismic waves; calculating extreme probability density function curves of floor plan response spectrum values on self-seismic periodicpoints; calculating the extreme probability density function curves of axial stress of an inclined strut of the seismic support hanger to acquire the reliability that the inclined strut of the seismicsupport hanger does not have seismic damage. The probability density evolution theory is combined with the floor response spectroscopy to perform the seismic design for the building seismic support hanger in terms of reliability, and seismic performance of the seismic support hanger is evaluated reliably and accurately.

Description

technical field [0001] The invention relates to an anti-seismic reliability design method of a building anti-seismic support and hanger. Background technique [0002] In many earthquake disasters, in addition to the devastating damage caused by the collapse of building structures, the damage of non-structural components, especially the damage of electromechanical equipment, affects the normal operation of the entire building function. Relatively speaking, the destruction of building auxiliary mechanical and electrical equipment will not only cause huge property losses, but also bring life danger, and the secondary disasters and tertiary disasters caused by this are potential threats to human safety and social and economic development. From August 1, 2015, the state began to approve the implementation of the "Code for Seismic Design of Building Mechanical and Electrical Engineering" (GB 50981-2014), so China's building mechanical and electrical industry has national standards...

AI Technical Summary

Problems solved by technology

Using the time-history analysis method to establish the floor response spectrum needs to calculate the structural seismic response under the action of a large number of seismic waves, and the calculation amount is too large, which limits the engineering application

Using the random vibration method to directly use the ground response spectrum to establish the floor response spectrum, although the calculation efficiency is high, it is difficult in theory, and the commonly used finite element analysis software cannot directly use the ground response spectrum to establish the floor response spectrum according to the random vibration method. limited engineering application

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