Experimental study on mechanical properties of magnesium foamed concrete wall under shear-compression loading
Hao Yunhong1,2 Li Zhenye1 Wang Chao1 Wang Tao1 Cao Xi1,2 Hou Yongli1,2 Wang Changqing3
1. School of Civil Engineering, Inner Mongolia University of Technology, Hohhot 010051, China;
2. Civil Engineering Structure and Key Mechanics Laboratory of Inner Mongolia, Inner Mongolia University of Technology, Hohhot 010051, China;
3. Inner Mongolia Green Housing Industry Technology Co., Ltd.，Hohhot 010030, China
Abstract：In order to investigate the shear mechanical property of foamed concrete wall，specimens were tested. This paper is studied whether the wall can bear the shear force at three different axial compression ratios. The shear mechanism, failure process, deformation displacement and other shear resistance of the new type wall are compared under three axial compression ratio. In this paper, the strength failure theory of this new type of wall is also studied, and a reasonable formula of shear strength is obtained. Experimental results show that with the increase of axial compression ratio, The cracking load, crack displacement, ultimate load, ultimate displacement and failure load of the wall are correspondingly increased, but the failure displacement is relatively reduced; The ultimate failure mode of the new type of wall is typical flexural failure of normal section and cracks develop from the edge of the cross to the interior under the influence of the three axial compression ratio; The first strength theory can explain the cracking of the new wall perfectly. With the increase of the axial compression ratio, the elastic working stage of the wall can be prolonged and local deformation ability of the wall will be better after cracking; The wall is a brittle member . Compared with the strength of the material the wall has been in a low stress state in the process of loading.
郝贠洪 李振业 王 超 王 涛 曹 喜 侯永利 王常清. 压剪复合作用下镁基盐发泡混凝土墙体力学#br#
性能试验研究[J]. 土木工程学报, 2018, 51(S2): 130-136.
Hao Yunhong Li Zhenye Wang Chao Wang Tao Cao Xi Hou Yongli Wang Changqing. Experimental study on mechanical properties of magnesium foamed concrete wall under shear-compression loading. 土木工程学报, 2018, 51(S2): 130-136.
