@ARTICLE{Xiong_Liangxiao_Experimental_2022,
 author={Xiong, Liangxiao and Chen, Haijun and Guo, Haogang and Mei, Songhua and Xu, Zhongyuan and Liu, Bin},
 volume={vol. 68},
 number={No 4},
 journal={Archives of Civil Engineering},
 pages={45-61},
 howpublished={online},
 year={2022},
 publisher={WARSAW UNIVERSITY OF TECHNOLOGY FACULTY OF CIVIL ENGINEERING and COMMITTEE FOR CIVIL ENGINEERING POLISH ACADEMY OF SCIENCES},
 abstract={In this study, direct shear tests were carried out on cement mortar specimens with singleladder, single-rectangular, and double-rectangular step joints. Consequently, the shear strength, and crack shape of specimens with these through-step joints were analyzed, for understanding the influence of the through-step joint’s shape on the direct shear mechanical properties. The results of the investigation are as follows: (1) Under the same normal stress, any increases in the height ℎ of the step joint causes an initial-increase-decrease in the shear strengths of specimens with single-ladder and double-rectangular step joints, causing a type-Wvariation pattern for the specimens with single-rectangular step joint. More essentially, when normal stress and ℎ are constant, the shear strength of specimens with a single-ladder step joint is the greatest, followed by specimens with a double-rectangular step joint, and then specimens with a single-rectangular step joint is the least. (2) Furthermore, given a smallℎ and low normal stress, specimen with a single-ladder step joint mainly experiences shear failure, whereas specimens with single-rectangular and double-rectangular step joints mainly generate extrusion milling in the step joints.},
 type={Article},
 title={Experimental study on shear mechanical properties of cement mortar specimen with through-step joints under direct shear},
 URL={http://ochroma.man.poznan.pl/Content/125665/PDF-MASTER/art03_int.pdf},
 doi={10.24425/ace.2022.143025},
 keywords={artificial rock specimen, ladder step joint, rectangular step joint, height of step joint, shear strength},
}