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锂渣钢筋混凝土偏心受压试件力学性能研究*
许开成1,2,阳翌舒3,陈梦成1,2,卫星1
摘 要

(1 华东交通大学土木建筑学院, 南昌 330013; 2 江西省建筑过程模拟与控制重点实验室, 南昌 330013; 3 国网江西电力有限公司赣州开发区供电分公司, 赣州 341000)

[摘要]通过对8根尺寸为250mm×200mm×1400mm不同取代率的锂渣钢筋混凝土偏心受压试件进行试验研究,观察其破坏形态,收集相关数据,得到了试件的荷载-混凝土应变曲线、荷载-钢筋应变曲线、荷载-侧向挠度曲线,并对各曲线进行对比分析,研究其受力性能。研究结果表明,掺锂渣混凝土偏压试件的破坏过程、破坏形态与普通混凝土偏压试件基本一致,掺入锂渣对偏心受压试件的极限承载力有一定提高作用。通过将计算承载力与试验所得承载力进行对比,发现采用现行的规范计算公式计算锂渣钢筋混凝土偏心受压承载力是可行的,有足够的安全储备。

[关键词]锂渣; 取代率; 偏心受压; 力学性能

中图分类号:TU375-3文献标识码:A文章编号:1002-848X(2018)06-0017-04

 

Mechanical properties research of lithium slag reinforced concrete eccentric compression columns

Xu Kaicheng1,2, Yang Yishu3, Chen Mengcheng1,2, Wei Xing1

(1 School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, China; 2 Jiangxi Provincial Key Laboratory of Simulation and Control for Construction Course, Nanchang 330013, China; 3 State Grid Jiangxi Electric Power Company Ganzhou Development Zone Power Supply Branch, Ganzhou 341000, China)

Abstract:The experimental study was conducted on the eccentric compression specimens of the lithium slag reinforced concrete with eight different replacement rates,the dimensions of these specimens were 250mm×200mm×1400mm. The failure mode of these specimens were observed, experimental data was collected, and the load concrete strain curves, load reinforcement strain curves, load deflection curves were got. And these curves were compared and analyzed. The results show that the failure process and failure mode of the concrete filled with lithium slag are basically same as the normal concrete. The addition of lithium slag can improve the ultimate bearing capacity of eccentric compression specimens. By comparing calculation and test bearing capacity,it is found that the current standard calculation formula can be used to calculate the eccentric compression bearing capacity of the lithium slag reinforced concrete, and has adequate safety reserves.

Keywords:lithium slag; replace rate; eccentric compression; mechanical property

 

*国家自然科学基金项目(51468017,51378206),江西省重大基金项目(20133BCB24008,20143ACB20008)。

 

作者简介:许开成,博士,教授,Email:505958373@qq.com。

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