废弃玻璃粉风积沙混凝土柱抗震性能试验研究  

Seismic damage behaviour of aeolian sand concrete column mixed waste glass powder

作　　者：王尧鸿[1,2] 张宇 姜丽云 李志强[3] 董伟 张巍[5] WANG Yaohong;ZHANG Yu;JIANG Liyun;LI Zhiqiang;DONG Wei;ZHANG Wei(School of Civil Engineering,Inner Mongol University of Technology,Hohhot 010051,China;Inner Mongolia Autonomous Region Key Laboratory of Civil Engineering Structure and Mechanics,Hohhot 010051,China;School of Water Conservancy and Construction Engineering,Shihezi University,Shihezi 832003 China;College of Civil Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China;Bayannaoer Power Supply Branch of Inner Mongolia Power(Group)Co.,Ltd,Bayannaoer 015000,China)

机构地区：[1]内蒙古工业大学土木工程学院,内蒙古呼和浩特010051 [2]内蒙古自治区土木工程结构与力学重点试验室,内蒙古呼和浩特市010051 [3]石河子大学石河子大学水利建筑工程学院,新疆石河子832003 [4]内蒙古科技大学土木工程学院,内蒙古包头014010 [5]内蒙古电力(集团)有限责任公司巴彦淖尔供电分公司,内蒙古巴彦淖尔015000

出　　处：《世界地震工程》2024年第2期45-54,共10页World Earthquake Engineering

基　　金：国家自然科学基金项目(51868059);内蒙古自然科学基金项目(2021MS05022);内蒙古自治区直属高校基本科研业务费项目(JY20220005)。

摘　　要：为研究玻璃粉等质量取代20%水泥与风积沙等质量取代30%天然砂对混凝土柱抗震性能的影响,本文设计和制作4根混凝土柱试件。第1根是普通混凝土柱,第2根是玻璃粉等质量取代20%水泥的混凝土柱,第3根是风积沙等质量取代30%河砂的混凝土柱,第4根是同时用玻璃粉和风积沙分别等质量取代20%水泥和30%河砂的混凝土柱。通过低周往复荷载试验,对比分析各个试件的破坏形态、承载力、滞回性能、骨架曲线、耗能能力、延性系数、刚度退化规律和变形特点。结果表明:20%取代率的玻璃粉取代水泥和30%取代率的风积沙取代天然河砂均能提高混凝土柱的抗震性能,降低构件破坏程度;基于试验结果、Fajfar和Park-Ang提出的地震损伤模型,对其耗能因子β进行修正,得到了修正后的Park-Ang损伤模型,并与废弃玻璃粉风积沙混凝土柱的试验过程吻合较好。In order to study the effect of replacing 20%cement with mass such as glass powder and 30%natural sand with mass such as wind-deposited sand on the seismic performance of concrete columns,this paper designed and produced 4 concrete column specimens.The first one is an ordinary concrete column,the second one is a concrete column with 20%of cement replaced by glass powder and other mass,the third one is a concrete column with 30%of river sand replaced by windy sand and other mass,and the fourth one is also made of glass powder.Concrete columns that replace 20%cement and 30%river sand with equal mass and aeolian sand respectively.Through the low-cycle reciprocating load test,the failure form,bearing capacity,hysteretic performance,skeleton curve,energy dissipation capacity,ductility coefficient,stiffness degradation law and deformation characteristics of each specimen were comparatively analyzed.The results show that:replacing cement with 20%substitution rate of glass powder and replacing natural river sand with 30%substitution rate of aeolian sand can improve the seismic performance of concrete columns and reduce the degree of component damage;based on the test results and the method proposed by Fajfar and Park-Ang For the earthquake damage model,the energy dissipation factor“β”was corrected,and the modified Park-Ang damage model was obtained,which was in good agreement with the test process of the abandoned glass powder aeolian sand concrete columns.

关 键 词：玻璃粉 风积沙 混凝土柱 抗震性能 损伤模型 

分 类 号：TU375.4[建筑科学—结构工程]