Seismic Damage Behaviour of Aeolian Sand Concrete Columns with I-Shaped Structural Steel

Archives of civil engineering

article

Yaohong Wang¹  Heyan Wang²  Yanpeng Wang²  Meng Zhao²  Jin Qi²  Guangzong Huo²  Peiqi Liu² 

[1] Inner Mongolia University of Technology, Inner Mongolia Key Laboratory of Civil Engineering Structures and Mechanics;School of Civil Engineering, Inner Mongolia University of Technology

关键词: aeolian sand;    columns;    I-shaped structural steel;    seismic damage behaviour;    damage model;   

DOI  :  10.24425/ace.2020.135241

学科分类：建筑学

来源: Polska Akademia Nauk * Instytut Podstawowych Problemow Techniki / Polish Academy of Sciences, Institute of Fundamental Technological Research

【 摘 要 】

To promote the application of aeolian sand resources for steel-concrete composite structures, an aeolian sand reinforced concrete column with I-shaped structural steel is proposed in this study. Four specimens are designed and manufactured with different replacement rates of aeolian sand. The seismic behaviour and damage evolution process of the specimens are studied by low-cycle repeated loading tests. Based on the test results, the mechanical characteristics, failure modes, hysteresis curves, skeleton curves, energy dissipation capacity, displacement ductility, and stiffness degradation of the specimens with different replacement rates of aeolian sand are analysed. In addition, the effects of the design parameters on the seismic behaviour of the specimens are also studied. The results show that the indexes of the seismic behaviour can be significantly improved by adding steel. Moreover, a revised damage model is proposed, to better reflect the evolution law of seismic damage of aeolian sand reinforced concrete columns with steel. The proposed model can provide an important reference for seismic damage assessment of the columns.

【 授权许可】

Unknown