Seismic Performance of Cementitious Grout Filled Coupler and Sleeve Connections in Precast Wall Panels under Cyclic Lateral Loading

IF 0.8 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Science-medziagotyra Pub Date : 2023-07-04 DOI:10.5755/j02.ms.33883

Joyson Silva Parisutham, Jaya KRISHNAN PRABHAKARAN, Binu Sukumar

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Abstract

This study investigated the seismic performance of cementitious grout filled coupler and sleeve connections in precast wall panels under cyclic lateral loading. The effectiveness of these connections in enhancing the seismic performance of precast concrete walls was evaluated. In many countries, grouted coupler connections are the preferred option, whereas sleeve connections were more commonly utilized in India due to the belief that a greater portion of the dowel being grouted enhances structural stability. Tests were conducted on full scale precast wall panels to study the behaviour of connections by applying a displacement-controlled cyclic lateral loading and the results were discussed. The experimental study revealed that the cementitious grout filled coupler connection exhibited better seismic performance and was recommended for precast wall panel connections over the grouted sleeve connection. Compared to the grout filled sleeve connection, the specimen with an unbonded segment demonstrated an 8% rise in energy dissipation, while the specimen with a grouted coupler connection displayed a 55 % increase.

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循环侧向荷载作用下预制墙板水泥灌浆连接件和套筒接头的抗震性能

本研究研究了预制墙板中水泥浆填充耦合器和套筒连接在循环横向荷载下的抗震性能。评估了这些连接在提高预制混凝土墙抗震性能方面的有效性。在许多国家，灌浆耦合器连接是首选，而套筒连接在印度更为常见，因为人们认为灌浆的传力杆的大部分可以增强结构稳定性。对全尺寸预制墙板进行了试验，通过施加位移控制的循环横向荷载来研究连接的性能，并对结果进行了讨论。实验研究表明，水泥灌浆填充耦合器连接具有更好的抗震性能，建议用于预制墙板连接，而不是灌浆套筒连接。与灌浆填充套筒连接相比，具有无粘结节段的试件的能量耗散增加了8%，而具有灌浆耦合器连接的试件则增加了55%。

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来源期刊

Materials Science-medziagotyra 工程技术-材料科学：综合

CiteScore

1.70

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： It covers the fields of materials science concerning with the traditional engineering materials as well as advanced materials and technologies aiming at the implementation and industry applications. The variety of materials under consideration, contributes to the cooperation of scientists working in applied physics, chemistry, materials science and different fields of engineering.