Multiple Simultaneous Damage Detection in large-span bridges
Subject Areas : Analysis of Structure and Earthquake
Leila Hosseinzadeh
1
,
Behnam Babaie
2
1 - Civil Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran.
2 - Department of Civil Engineering, Tabriz Branch, Islamic Azad University, Tabriz, Iran.
Keywords: Steel shear walls, Low yield point steel, Stiffness, ultimate strength, energy absorption.,
Abstract :
The steel shear wall is a lateral load resistant system that has received attention in recent decades. Steel shear walls are used in two ways: hardened and unhardened walls. Although the post-buckling behavior of the steel shear wall causes the post-buckling loading but this plate buckling is not always desirable. One of the useful solutions to prevent lateral buckling is the use of walls with corrugated plates. In this research, the behavior of a steel shear walls consisting of two flat plates and one corrugated plate was studied in two states of conventional structural steel (A36) and low yield point steel(LYP). The use of low yield strength steel improved the seismic performance of the steel shear wall system. Taking into account the changes in the thickness of the plate and different aspect ratio, LYP steel increased the values of stiffness, ultimate strength, and energy absorption by about 74%, 51% and 36%. The effect of increasing the plate thickness on the stiffness parameter for infill panel with A36 steel is more than that of LYP steel. Increasing the thickness of the plates increased the stiffness, ultimate strength, and energy absorption of the system for A36 steel by about 45%, 35%, and 44%, and for LYP steel by about 35%, 62%, and 53%, and also increase in the dimensional ratio of stiffness, strength and increased the energy absorption of the system for A36 steel by 51%, 36% and 38% respectively and for LYP steel by 52%, 46% and 49% respectively.
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