- 摘 要
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（1 華東交通大學土木建筑學院， 南昌 330013； 2 江西省建筑過程模擬與控制重點實驗室， 南昌 330013； 3 國網(wǎng)江西電力有限公司贛州開發(fā)區(qū)供電分公司， 贛州 341000）
［摘要］通過對8根尺寸為250mm×200mm×1400mm不同取代率的鋰渣鋼筋混凝土偏心受壓試件進行試驗研究，觀察其破壞形態(tài)，收集相關數(shù)據(jù)，得到了試件的荷載-混凝土應變曲線、荷載-鋼筋應變曲線、荷載-側(cè)向撓度曲線，并對各曲線進行對比分析，研究其受力性能。研究結(jié)果表明，摻鋰渣混凝土偏壓試件的破壞過程、破壞形態(tài)與普通混凝土偏壓試件基本一致，摻入鋰渣對偏心受壓試件的極限承載力有一定提高作用。通過將計算承載力與試驗所得承載力進行對比，發(fā)現(xiàn)采用現(xiàn)行的規(guī)范計算公式計算鋰渣鋼筋混凝土偏心受壓承載力是可行的，有足夠的安全儲備。
［關鍵詞］鋰渣； 取代率； 偏心受壓； 力學性能
中圖分類號：TU375-3文獻標識碼：A文章編號：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
*國家自然科學基金項目(51468017，51378206)，江西省重大基金項目（20133BCB24008，20143ACB20008）。
作者簡介：許開成，博士，教授，Email：505958373@qq.com。
