Seismic performance of pseudo strain-hardening cementitious composite coupling beams with different reinforcement details

Park, Wan-Shin; Kim, Sun-Woo

doi:10.1016/j.compositesb.2011.04.049

Cited by 27 publications

(23 citation statements)

References 11 publications

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“…The conventional composite coupling beam without steel fiber and polyethylene made of specimen PCCS suddenly began the spalling of the concrete and finally failed in crushing of the concrete in the compressive strut zone, resulting in a sudden load drop. However, no brittle failures in the PSH2C coupling beam with steel fiber and polyethylene, specimens PCC and PCS, were observed up to the end of the test [5]. It has been shown that the fibers' bridge across the cracks that form in the member and help to maintain the integrity of the pseudo strain hardening material.…”

Section: Experimental Programmentioning

confidence: 91%

“…The test specimens were loaded using two hydraulic jacks: a pair of 2000 kN (448 kip) hydraulic jacks for the wall, and a 1000 kN (224 kip) hydraulic jack for the steel coupling beams. The testing method is identical to those presented in the companion paper [5]. Fig.…”

Section: Experimental Programmentioning

confidence: 98%

“…7 shows the observed ultimate shear stress versus the concrete compressive strength considering fiber types. Based on the observation of the test results [5,[8][9][10][19][20][21][22][23][24][25], the ultimate shear stress for the same fiber factor tends to increase as concrete compressive strength increases, as shown in Fig. 7.…”

Section: Khuntia Et Almentioning

confidence: 99%

“…Recently, pseudo strain hardening cementitious materials with steel fibers were being intensively used to improve the shear capacity for structural members such as coupling beams in a coupled shear wall system [4,5]. A number of studies [6][7][8][9][10][11] found that PSH2C beams are suitable to improve the seismic capacities in conventionally reinforced concrete beams loaded in shear.…”

Section: Introductionmentioning

confidence: 99%

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Shear strength of pseudo strain hardening cementitious composite coupling beam

Park

Kim

2011

Composites Part B: Engineering

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Section: Experimental Programmentioning

confidence: 91%

Section: Experimental Programmentioning

confidence: 98%

Section: Khuntia Et Almentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Shear strength of pseudo strain hardening cementitious composite coupling beam

Park

Kim

2011

Composites Part B: Engineering

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“…For example, Park and Yun (2011) investigated the seismic performance of strain-hardening cement-based composite (SHCC) coupling beams that contained different types of reinforcement. They found that ductile cement-based composites such as SHCC are effective in improving the ductility and strength of sheardominant coupling beams.…”

Section: Review Of Previous Studiesmentioning

confidence: 99%

Hysteretic Behavior of Conventionally Reinforced Concrete Coupling Beams in Reinforced Concrete Coupled Shear Wall

Seo

Kim

Chun³

2017

Int J Concr Struct Mater

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This paper presents the experimental results of four full-scale coupling beams in which only horizontal reinforcements are placed, without diagonal reinforcements, with the aim to develop reinforcement details for coupling beams used in connecting side walls in a wall-slab structural system. Each coupling beam specimen was designed according to the deep-beam design procedure that does not use diagonal reinforcements and that is found in current standards. Two cases for basic deep-beam design specimens were investigated wherein (1) U-type reinforcement was added to prevent sliding shear failure of the joints and (2) horizontal intermediate reinforcements were placed. The coupling beam specimens were fabricated with a shear span-to-depth ratio (aspect ratio) of 1.68 and were connected to walls only by horizontal reinforcements, i.e., without diagonal reinforcement. The experimental results indicate that the strength of the beams was about 1.5 times the designed strength of a strut-and-tie model, which suggests that the model is available for predicting the strength of coupling beams with conventional reinforcement layouts such as horizontal and transverse reinforcement bars. The deformation capacity of these conventionally reinforced concrete coupling beams ranged from 1.48 to 3.47% in accordance with the reinforcement layouts of the beams. Therefore, this study found that the performance of conventionally reinforced concrete coupling beams with an aspect ratio of 1.68 can be controlled through the implementation of reinforcement details that include U-type reinforcement and the anchorage of intermediate horizontal bars.

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Seismic behavior of reinforced engineered cementitious composite members and reinforced concrete/engineered cementitious composite members: A review

Hou

Chen

et al. 2019

Structural Concrete

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Seismic performance is of paramount importance for structures in regions with high seismic risk. Engineered cementitious composite (ECC) exhibits tensile strain hardening behavior and excellent crack dispersion capacity, as well as good workability. The application of ECC material may be a feasible way to improve the seismic behavior of engineering structures. This paper presents a comprehensive review of experimental and simulation studies concerning seismic behavior of reinforced ECC members and reinforced concrete/ECC composite members. The review is mainly focused on design programs for structural members and their seismic response behavior. The effectiveness of the application of ECC for seismic improvement is discussed. Several design recommendations are provided, based on comparison of the related studies.

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Seismic performance of pseudo strain-hardening cementitious composite coupling beams with different reinforcement details

Cited by 27 publications

References 11 publications

Shear strength of pseudo strain hardening cementitious composite coupling beam

Shear strength of pseudo strain hardening cementitious composite coupling beam

Hysteretic Behavior of Conventionally Reinforced Concrete Coupling Beams in Reinforced Concrete Coupled Shear Wall

Seismic behavior of reinforced engineered cementitious composite members and reinforced concrete/engineered cementitious composite members: A review

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