Reinforced concrete roof exterior wide and conventional beam-column joints under lateral load

Mirzabagheri, Sara; Tasnimi, Abbas Ali

doi:10.1002/tal.1264

Cited by 7 publications

(1 citation statement)

References 13 publications

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“…Several methods for retrofitting beam‐column connections have been proposed in the past, but less attention has been focused on noninvasive strategy for seismic retrofit of deficient beam‐column connections . Jacketing with concrete is one of the earliest techniques to be introduced and is the most common solution for local rehabilitation of nonseismically detailed beam‐column joints, with several research projects that investigated the viability of this technique having been reported .…”

Section: Introductionmentioning

confidence: 99%

Effect of different size of joint enlargement on seismic behavior of gravity load designed RC beam‐column connections

Shafaei

Nezami

2019

Structural Design Tall Build

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Summary Effect of different size of planer joint enlargement as a noninvasive and practical strategy for seismic retrofit of gravity load designed external reinforced concrete beam‐column connections was experimentally investigated. The joint region was enlarged using steel angles that are mounted using prestressed cross‐ties. Reverse cyclic load tests on five half‐scale control and retrofitted external RC beam‐column connections were conducted. Three different size of planer joint enlargement being 180, 140, and 90 mm were considered for retrofitted specimens. The performance of the retrofitted specimens is compared with that of the control gravity load designed beam‐column connections, in terms of load–displacement hysteresis curve, energy dissipation and ductility capacities, and global strength and stiffness degradation behavior. The experimental results showed that increasing the size of planer joint enlargement significantly enhances the seismic capacity of the retrofitted connections, in terms of strength, stiffness, energy dissipation, and ductility capacity and also planer joint enlargement can relocate beam plastic hinges to outside the joint panel.

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Section: Introductionmentioning

confidence: 99%