Effect of loading rate on mechanical behavior of SRC shearwalls

Esaki, Fumiya; Ono, M.

doi:10.12989/scs.2001.1.2.201

Cited by 13 publications

(7 citation statements)

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“…The existing experimental results indicated that the strength and ductility performances were effectively improved by using CFST columns as the boundary elements. Previous research studies show that the structural steel is usually arranged at the extremities of reinforced concrete wall sections to form composite boundary elements; Cho [17], Esaki [18], and Zhou [19] conducted similar research work. For such a structural system, RCSW mainly serve as a shear-resisting component, while the function of composite boundary elements is to resist the overturning moment.…”

Section: Introductionmentioning

confidence: 96%

Experimental Study of High-Strength Concrete-Steel Plate Composite Shear Walls

et al. 2019

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Shear walls are effective lateral load resisting elements in high-rise buildings. This paper presents an experimental study of the seismic performance of a composite shear wall system that consists of high-strength concrete walls with the embedded steel plate. Two sets of wall specimens with different aspect ratios (height/width, 1.5 and 2.7) were constructed and tested under quasi-static reversed cyclic loading, including five reinforced concrete shear walls (RCSW) and six reinforced concrete-steel plate shear walls (RCSPSW). The progression of damage, failure modes, and load-displacement responses of test specimens were studied and compared based on experimental observations. The test results indicated that high-strength (HS) RCSPSW system showed superior lateral load strength and acceptable deformation capability. The axial compressive load was found to have an indispensable effect on the ductility of both RCSW and RCSPSW, and an upper limit of axial compression ratio (0.5) is recommended for the application of HS RCSPSW in engineering practices. In addition, the design strength models were suggested for predicting the shear and flexure peak strength values of RCSPSW systems, and their applicability and reliability were verified by comparing with test results.

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Section: Introductionmentioning

confidence: 96%

Experimental Study of High-Strength Concrete-Steel Plate Composite Shear Walls

et al. 2019

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“…In the early 1900's the construction of the buildings using reinforced concrete (RC) walls started to develop, but it is only recently that the steel reinforced concrete walls (SRC), namely classical reinforced concrete walls with encased steel profiles as supplementary reinforcement, started to become more popular [1]. In the early 1900's the construction of the buildings using reinforced concrete (RC) walls started to develop, but it is only recently that the steel reinforced concrete walls (SRC), namely classical reinforced concrete walls with encased steel profiles as supplementary reinforcement, started to become more popular [1].…”

Section: Introductionmentioning

confidence: 99%

“…Since all the parameters for steel material models were known, the only modifications were made to the tensile strength of the concrete , in this case 4.5MPa, and the fracture energy calculated based on a modification of the formula from ModelCode 2010 as given in Eq (1). Material models used for: a) concrete compression model; b) concrete tension model c) steel profileTo provide a larger capability of crack development of the wall it was considered a varying mesh with a starting size equal to the diameter of the reinforcements to an end size at the top of 50 mm.…”

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confidence: 99%

08.59: Shear behavior of concrete walls reinforced by multiple steel profiles Calibration of numerical model

2017

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The current state of EN 1994 and EN 1992 does not provide correlated solutions related to the design of concrete walls reinforced by multiple steel profiles. Explicitly, Eurocode 4 is setting clear boundaries in the design of composite walls by limiting the possibilities to elements reinforced by a single profile or multiple connected profiles. A number of previous studies have shown that the method proposed by Eurocode 2 regarding classical reinforced walls provides a good prediction of the bending capacity of the wall; however limited information regarding their shear capacity can be found. The current paper is having as starting point a theoretical approach for determining the shear performances of RC wall reinforced by multiple steel profiles, coupled with an experimental campaign. The experimental campaign comprises 6 walls, ranging from a classic RC wall taken as a reference to configurations with multiple profiles with studs or plate stiffeners to ensure the transfer of the longitudinal shear at the steel-concrete interface. The FE model is going to try to reproduce the behavior showed by the walls. The objective of the present paper is to present a comparative analysis between results obtained using a FE software and results from the experimental campaign carried out in the frame of the European research program SmartCoCo. The obtained results will be used to confirm once again the design method based on theoretical reasoning, proposed by the authors and presented in previous papers. This contribution contains a brief description of the test specimens, presents a selection of the most relevant experimental results in parallel with the FE results and a set of conclusions regarding the results. It can be concluded from this set of tests that the new design method is able to predict the shear capacity with a good accuracy and can therefore be considered as a suitable solution for designing practical cases.

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“…A large number of experiments show that the seismic performance of concrete filled steel tubular frame shear wall structure and cast-in-situ structure is equivalent [2,[5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Seismic Behavior of Two-Story Shear Wall with Concrete Filled Steel Tube Columns

2017

Aug. 8-9, 2017 Singapore Back RTET-17, CFBHS-17, IECMAE-17, AESTWM-17, LHHSS-17 &Amp; LEBCSR-17

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To investigate the seismic behavior of concrete filled steel tube columns precast shear walls, a study of 3 specimens failure cases were conducted in Quasi-static loading. The shear walls were designed in 1/3 scaled, and grouted sleeve connection detail were applied in steel tubular joints. The failure pattern, the hysteretic behavior, ductility and the energy dissipating capacity were discussed under different axial compression ratios. The results show: The failure mode is similar that steel tubular joints brittle failure occur. The hysteretic curve plumpness and energy dissipating capacities are strong. The ductility coefficient range from 1.6~2.5 and the deformation performance decreases with the increase of axial compression ratios. The yield strength in substituted for the ultimate strength in steel tubular joints design.

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Effect of loading rate on mechanical behavior of SRC shearwalls

Cited by 13 publications

References 0 publications

Experimental Study of High-Strength Concrete-Steel Plate Composite Shear Walls

Experimental Study of High-Strength Concrete-Steel Plate Composite Shear Walls

08.59: Shear behavior of concrete walls reinforced by multiple steel profiles Calibration of numerical model

Seismic Behavior of Two-Story Shear Wall with Concrete Filled Steel Tube Columns

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