scholarly journals A Review on Seismic Behaviour of Coupled Wall Structures

2021 ◽  
Author(s):  
Anu Philip ◽  
Bushra M. A
Keyword(s):  
Absorption Capacity ◽  
Lateral Loads ◽  
Structural System ◽  
Coupling Beams ◽  
Seismic Behaviour ◽  
Coupled Wall ◽  
High Rise ◽  
High Rise Building ◽  
Wall Structures ◽  
Coupled Walls

Increase in population density and shortage of land are the two major problems in all developing countries including India. To mitigate these problems, the designers resort to high rise building. One of the most important criteria for designing a structural system is its resistance to lateral loads. Coupled walls structures is considered to be one of the potential option for resisting lateral loads in high-rise structure and have widely been used around the world in multi-story buildings. Coupled walls, mainly consist of pier walls which are connected by coupling beams at each floor level. These systems are typically located in the service core and sometimes on the perimeter of the buildings. The main benefit of coupled wall over cantilever walls are, a part of the total overturning moment is resisted by coupling action and there is energy dissipation along the height of the structure through the formation of plastic hinges at both ends of the coupling beams. The present work reviews different factors influencing the seismic performance of coupled wall structural system, importance of coupling ratio, different modeling techniques, a comparative study on different coupled wall systems and a brief overview of design methodologies. Considering structural performance, energy absorption capacity and higher shear stiffness to limit lateral deformation, coupled wall structures were considered to be efficient and economical structural system in high-rise building.

Ductility and Deformability of Coupling Beams in Reinforced Concrete Coupled Walls

2001 ◽  
Vol 17 (3) ◽  
pp. 457-478 ◽  
Author(s):  
Kent A. Harries
Keyword(s):  
Large Scale ◽  
Seismic Event ◽  
Experimental Investigations ◽  
Coupling Beam ◽  
Coupling Beams ◽  
Ductility Demand ◽  
Coupled Wall ◽  
Wall Structures ◽  
Coupled Walls ◽  
Degree Of Coupling

The seismic response of coupled wall structures is discussed. It is demonstrated through a review of large-scale experimental investigations of coupling beam behavior and analytic studies of coupled wall behavior that often the coupling beam ductility demand exceeds the expected available ductility. As a result, it is possible that coupled wall structures will not behave as desired in the course of a significant seismic event. Limits to the allowable degree of coupling are proposed as a remedy to this apparent deficiency. Additional design and analysis issues are discussed including reduced section properties and wall overstrength requirements.

Nonlinear Finite Element Analysis of Diagonally Reinforced Coupling Beams with Head Bar Reinforcements

2013 ◽  
Vol 831 ◽  
pp. 137-140
Author(s):  
Kang Min Lee ◽  
Liu Yi Chen ◽  
Rui Li ◽  
Keun Yeong Oh ◽  
Young Soo Chun
Keyword(s):  
Finite Element ◽  
Construction Projects ◽  
Nonlinear Behavior ◽  
Lateral Loads ◽  
Coupling Beams ◽  
Element Analysis ◽  
Coupled Wall ◽  
Finite Element Software ◽  
Small Depth ◽  
Coupled Wall Systems

Coupling beams resist lateral loads efficiently is well known in coupled wall systems. In many cases, geometric limits result in coupling beams that are deep in relation to their clear span. Coupling beams with small depth-to-span ratio shall be reinforced with two intersecting groups of diagonally placed bars symmetrical along the mid-span. It's always hard to optimize construction projects. This paper used the finite element software (Abaqus) to analysis and simulate the nonlinear behavior of a new reinforcement called head bar and compared the results to the current standards.

scholarly journals Analytical Comparison of Structure with Reinforced Concrete Wall Against Lateral Load

2019 ◽  
pp. 1336-1340
Author(s):  
Mehul J. Bhavsar ◽  
Digant A. Pastagia
Keyword(s):  
Performance Optimization ◽  
Structural Parameters ◽  
Structural System ◽  
Concrete Wall ◽  
Structural Wall ◽  
Static And Dynamic Analysis ◽  
High Rise ◽  
High Rise Building ◽  
Moment Resisting ◽  
Reinforced Concrete Wall

Buildings are generally designed to withstand against gravity load for expected life and resist extent of lateral loads by satisfying the codal provision. Main objective of structural elements is to transfer the load safely to the ground, which depends on structural system adopted. Generally, structural system can be adopted depending on the demand of client/building needs/use of structure, environmental condition, performance optimization, economic condition etc. For high rise building moment resisting frame system, structural wall systems, dual system, flat slab-structural wall systems can be employed. A residential ground with ten upper floors high rise building situated in zone-III has been taken under reference, where MRF with RC structural wall system is used. Structural parameters are compared in the study for various location and orientation of RC wall. Linear static and dynamic analysis is performed on the structure based on the IS 1893 Part-I on ETABS software.

The Conceptual Design of High-Rise Structures

2011 ◽  
Vol 99-100 ◽  
pp. 46-50
Author(s):  
Ming Chen Xue ◽  
Yong Sheng Zhao
Keyword(s):  
Conceptual Design ◽  
Structure Design ◽  
Building Structures ◽  
Building Structure ◽  
Structural System ◽  
Seismic Line ◽  
High Rise ◽  
High Rise Building

In this paper, the contents, meaning and importance of conceptual design in the high-rise building structure design are explored from the following respects: structural system, facade layout and multi-channel seismic line. It not only provides a strong protection of concept for calculation of high-rise building structures, but also accumulates some experience for the research on conceptual design of high-rise structures.

scholarly journals Effect of Location of Shear wall on Torsional Performance of Symmetric and Asymmetric High Rise Building

2021 ◽  
Vol 9 (VI) ◽  
pp. 5237-5243
Author(s):  
Hridya. K
Keyword(s):  
Shear Walls ◽  
Shear Wall ◽  
Lateral Loads ◽  
Base Shear ◽  
Flat Slab ◽  
High Rise ◽  
High Rise Building ◽  
Wide Range ◽  
The Cost ◽  
Post Tensioned

Torsion force is a load that is a applied to a building through torque. The torque applied creates a shear stress. If a torsion force is large enough, it can cause a building to undergo a twisting action. The main aim of the project is to study the effect of location of shear wall on torsional performance of symmetric and asymmetric high-rise building ,post tensioned slabs are being used in the construction of building hence the thesis also analyze these post tensioned slab structures by changing shear wall configuration. Post tensioned slab structures have weak resistance to lateral loads. so to provide stiffness to structures against lateral forces shear walls are used. A study of 30 storey building in zone III, is considered and determine various parameters like base shear, storey drift, and storey displacement.post-tensioning is a mature technology as it provide efficient, economic and elegant structural solutions for a wide range of applications. Post-tensioned flat slab could be a better option compared to RCC flat slab, in respect of the cost of project and time of construction. ETABS 2017 software is used for the analysis.

Treatment Methods for Over Reinforcement of Coupling Beam in High-Rise Building Structure Design

2012 ◽  
Vol 503-504 ◽  
pp. 995-1001
Author(s):  
Xu Ping Zhu ◽  
Li Ping Wen ◽  
Ju Wen Li
Keyword(s):  
Cross Section ◽  
Shear Wall ◽  
Structure Design ◽  
Building Structure ◽  
Coupling Beam ◽  
Large Cross Section ◽  
Treatment Methods ◽  
High Rise ◽  
High Rise Building ◽  
Wall Structures

This paper analyzes the over-reinforcement of coupling beam in high-rise building structure design and proposes the relevant treatment methods and suggestions to provide references for designers. Coupling beam is a beam that is used to connect between wall limbs or wall limbs and frame columns in shear wall structures and frame – shear wall structures. A coupling beam generally has the features of small span, large cross section and high stiffness of the wall connected to it.

Middle-Story Isolated Structural System of High-Rise Building

2009 ◽  
Vol 4 (3) ◽  
pp. 229-238 ◽  
Author(s):  
Yasuhiro Tsuneki ◽  
◽  
Shingo Torii ◽  
Katsuhide Murakami ◽  
Toshiyuki Sueoka ◽  
...  
Keyword(s):  
Architectural Design ◽  
Seismic Isolation ◽  
Base Isolation ◽  
Seismic Resistance ◽  
Structural System ◽  
Layer System ◽  
High Rise ◽  
Isolation Layer ◽  
High Rise Building ◽  
Architectural Planning

For buildings of normal earthquake-resistant construction, it is essential to provide their structural frame with sufficient rigidity and strength horizontally and vertically, ensuring a uniform distribution of rigidity and strength in the plane. To this end, it is typical that those buildings adopt the same type of construction and structural system. On the other hand, in buildings of general base-isolation construction, their upper structure, which is supported by a base isolation layer, undergoes lessened seismic forces and therefore is able to tolerate concentration of rigidity and strength. This makes them available for construction with any types of structural systems, which in turn allows new structural planning realizing a greater freedom in architectural design; the same type of construction and structural system for the upper structure is generally adopted. In contrast, when a high-rise building is provided with an isolation layer in an intermediate level, its upper structure, which is placed above the isolation layer, has high seismic resistance as a seismic isolation structure. And a mass damper effect contributes to decrease in seismic responses in the lower structure, ensuring high seismic resistance of a building. This paper describes the physical properties of a seismic isolation layer system which is built at an middle-story of a building. It also introduce buildings by which potentials for new architectural planning are proposed through the use of this system.

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