Seismic Performance of RC Shear Walls with Concealed Bracing

Cao, Wanlin; Xue, Su Duo; Zhang, J. W.

doi:10.1260/136943303321625685

Cited by 28 publications

(11 citation statements)

References 13 publications

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“…As presented in Table 2, the specimens SW1, SW2 and SW3 had the same reinforcement as SW5, except for the concealed bracings. 15 SW4 had the same total amount of reinforcement as SW5, whereas the difference between the two was that SW5 had concealed bracings but SW4 Table 5. The time scale was compressed by the factor of √ ⎯ 1/3 = 0.577, according to the similitude law.…”

Section: Design Of the Specimensmentioning

confidence: 99%

Shaking Table Tests of Low-Rise Shear Walls Made of Recycled Aggregate Concrete

Zhang

Hao

Cao

et al. 2016

Structural Engineering International

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Section: Design Of the Specimensmentioning

confidence: 99%

Shaking Table Tests of Low-Rise Shear Walls Made of Recycled Aggregate Concrete

Zhang

Hao

Cao

et al. 2016

Structural Engineering International

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“…Third, extensive research has been conducted worldwide on concealed bracing because it can significantly improve the ductility of shear walls. 15 However, concealed bracings are challenging to install for cast-in-place shear walls, and the installation precision is difficult to guarantee. One major advantage of precast structures is that the components are prefabricated in the factory with high production accuracy.…”

Section: Introductionmentioning

confidence: 99%

Quasi‐static test and strut‐and‐tie modeling of precast concrete shear walls with unconnected vertically distributed reinforcements

Xiao

Cao

Zhang

et al. 2021

Structural Concrete

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To solve the fabrication problems of traditional precast shear walls caused by too many connections joints, a new type of precast shear wall with unconnected vertically distributed reinforcements and concealed bracings is developed in this paper. Four full-scale shear walls, including one cast-in-place specimen and three precast specimens, were tested under low-cycle lateral loading conditions to evaluate the seismic performance of the new type of precast shear wall. The test results showed that the loading capacity and energy dissipation of the new type of precast shear wall were comparable to those of the cast-in-place specimen; however, the failure mode was similar to the damage mechanism of an infilled wall frame, not the traditional bending-shear mode of shear walls. Then, a new strut-and-tie model considering dowel action was proposed for this new type of precast shear wall. Finally, a parametric study was conducted by finite element analysis to determine a reasonable value of the effective strength coefficient for the strut-and-tie model. Good agreement was achieved between the test and model results.

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“…This paper gives an insight on seismic behaviour of structure and improvement techniques used for seismic resistance in practice. Behaviour of shear wall having medium height was studied by [1] to know improvement in its seismic performance using different inbuilt bracing maintaining same reinforcement percentage as that of normal reinforced wall and it was observed that there is significant improvement in seismic behaviour of these shear walls using inbuilt bracing without increasing reinforcement. A study of improvement of behaviour of shear wall with introducing different inbuilt steel sections embedded in concrete was made by [4] and it was investigated that, use of encased profiles in shear wall improves strength, stiffness and ductility if shear wall.…”

Section: Introductionmentioning

confidence: 99%

Earthquake Resisting Elements and Techniques in High Rise Buildings

Mahadik*,

Bhagat

2020

IJITEE

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An earthquake resisting elements are the components that are introduced in a structure to improve its seismic resistance and method of application of these elements are said as techniques. Though structures are designed and detailed as per code provision there remains some possibility of damage or failure in strong earthquake. Performance of buildings may be improved using earthquake resistant elements and techniques. An earthquake produces seismic waves on earth surface of earth due to releases of large energy from lithosphere which produces waves in earth surface causing disturbance in structures resulting failure of seismically weak structures. Seismic waves then travels in horizontal and vertical direction. It causes horizontal and vertical ground movement or vibration. These seismic waves cause disturbances in in buildings. The disturbance caused depends on position of building with respect to the center of disturbance called as epicenter. Intensity of these seismic waves is maximum at center and goes on reducing away from epicenter. Generally horizontal waves are of stronger than vertical so buildings are designed to horizontal seismic forces. These valves travel in any direction but from design purpose it is resolved in two orthogonal directions. Few constructional precautions may help to avoid or minimize damage in buildings. Earthquake resistance of building may be improved with proper design and construction of structures. Some earthquake resisting elements like shear wall, moment resisting frame or innovative techniques like base isolation, or energy dissipation system are used in many high rise buildings to avoid or minimize damage and hence loss of lives and properties. Shear walls are RC member generally introduced in a structure during construction in symmetrical manner. Base isolators in the form bearings are placed between sub and super structure to reduce stiffness of structures. Structures are braced with seismic dampers in energy dissipation system. Composites are used by mixing in concrete or as a warp. All these techniques are reviewed herewith with special attention on shear walls.

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Seismic Performance of RC Shear Walls with Concealed Bracing

Cited by 28 publications

References 13 publications

Shaking Table Tests of Low-Rise Shear Walls Made of Recycled Aggregate Concrete

Shaking Table Tests of Low-Rise Shear Walls Made of Recycled Aggregate Concrete

Quasi‐static test and strut‐and‐tie modeling of precast concrete shear walls with unconnected vertically distributed reinforcements

Earthquake Resisting Elements and Techniques in High Rise Buildings

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