Strength of Wall-Slab Junction with New Form of Shear Reinforcement in a Laterally Loaded Tall Shear Wall Building
Strength of Wall-Slab Junction with New Form of Shear Reinforcement in a Laterally Loaded Tall Shear Wall Building作者机构：Department of Civil Engineering Mehran University of Engineering and Technology Khairpur Mirs 66020 Pakistan School of Built Environment Heriot-Watt University Edinburgh Edinburgh EH14 4AS United Kingdom Department of Civil Engineering Quaid-e-Awam University College of Engineering Science and Technology Larkano 77150Pakistan Gawader Seaport Authority Gawader Sea Port Gawader 91200 Pakistan
出 版 物：《Journal of Civil Engineering and Architecture》 (土木工程与建筑（英文版）)
年 卷 期：2015年第9卷第2期
页 面：193-206页
学科分类：08[工学] 080104[工学-工程力学] 081402[工学-结构工程] 0815[工学-水利工程] 081304[工学-建筑技术科学] 0813[工学-建筑学] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）]
主 题：Wall-slab junction reinforcement vertical steel bars periphery of inner walls l-section.
摘 要：Very high concentration of flexural, shear and torsional stresses occurs at the wall-slab junctions in a laterally loaded tall building consisting of planar walls and coupling slabs. Due to this concentration of stresses and their interaction, there are great chances of failure to occur at the junction. Also the flexural stresses are not uniformly distributed and have the highest intensity near the periphery of inner walls but are reduced drastically as we move away from the wall-slab junction. Numerous attempts have been made to strengthen the wall-slab junction by using various types of shear reinforcement to ensure that shear failure should not occur. Various methods including fibre reinforcement consisting of twins of twisted steel couplets have already been used. This paper describes a new method of placing 2 inch wide flange I-sections at appropriate locations to improve the shear strength of the wall-slab junctions. Based on systematic research, a new procedure has also been developed to assess the strength of wall-slab junction using the new reinforcement method. Test results showed that a substantial increase, up to 57%, in the shear strength of specimens was obtained by using the new method of shear reinforcement in a laterally loaded tall building.
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