The Affectivity of Various Wind Condition and Shear Wall Opening in Multi-Story Building on Displacement by Changing Shear Wall Location and its Configuration

2018 ◽  
Vol 30 ◽  
pp. 71-79
Author(s):  
Rasheed Altouhami ◽  
David Yeoh ◽  
Lovein Soon Hong ◽  
Hassan Ali ◽  
Ashraf Radwan
Keyword(s):  
Lateral Displacement ◽  
Shear Wall ◽  
Lateral Load ◽  
Wind Load ◽  
Seismic Load ◽  
Wind Condition ◽  
High Rise ◽  
Story Building ◽  
Maximum Lateral Displacement ◽  
Load Conditions

Shear wall system is used as one of the most lateral load resisting systems in mulit-story building. Shear wall is quite effective in resisting wind and seismic load in medium-rise and high-rise building. Shear wall provided high stiffness and strength, which can be used to resist large lateral as well as vertical load, making the performance of the building beneficial in various wind load conditions. This study has been focused on the displacement of the different lateral load resisting system for high-rise buildings under various wind load conditions. In this paper, a study was carried out by changing the locations of shear wall radically to determine the structural configuration of a multistory building accordantly. This study has been focused on the effect of addition of shear wall at different location and configuration in buildings without shear wall as well as with shear wall. Besides that, from the software results, the behavior of the shear wall with and without opening was able to observed by obtaining the lateral displacement when acted by 10kN point load at the top left of the wall. The accuracy of the software was able to verify by comparing the result obtained from ETABS and SAP2000 and it was found that the percentage difference between values obtained from that two software is below 20 percent. The maximum lateral displacement at 40m/s and 50m/s is 1.8 and 2.8 times bigger than maximum lateral displacement at 30m/s respectively. The lateral displacement of the shear wall increases as the opening size increases.

Stability Analysis of High-Rise Buildings under Seismic Load

2012 ◽  
Vol 256-259 ◽  
pp. 2067-2073
Author(s):  
Xiang Dong Zhang ◽  
Pu Wang ◽  
Jian Guan
Keyword(s):  
Lateral Displacement ◽  
Shear Wall ◽  
Frame Structure ◽  
Seismic Load ◽  
Structural System ◽  
Wave Analysis ◽  
Structure Characteristics ◽  
High Rise ◽  
Finite Element Software

Analysis of the structure characteristics of the General Hospital of Fuxin Mining Group, through the instrument observation and use the finite element software for structural modeling, modal analysis show that the quality of structural system, the stiffness is more evenly distributed the structure of the torsional capacity to meet the requirements. Through input into Tianjin wave, analysis the dynamic characteristics of the model, the results show that: to tall wall-frame structure, shear wall is very restriction of lateral displacement in the central and bottom, stronger than upper structure on lateral displacement limit ability.

scholarly journals Behavioural Study of Shear Wall with Correlational to Bracing under Seismic Loading

2018 ◽  
Vol 65 ◽  
pp. 08008
Author(s):  
Syed Muhammad Bilal Haider ◽  
Zafarullah Nizamani ◽  
Chun Chieh Yip
Keyword(s):  
Reinforced Concrete ◽  
Lateral Displacement ◽  
Limit State ◽  
Shear Wall ◽  
Design Tool ◽  
Base Shear ◽  
Building Model ◽  
High Rise ◽  
Finite Element Software ◽  
Seismic Vibrations

The reinforced concrete structures, not designed for seismic conditions, amid the past earthquakes have shown us the significance of assessment of the seismic limit state of the current structures. During seismic vibrations, every structure encountered seismic loads. Seismic vibrations in high rise building structure subjects horizontal and torsional deflections which consequently develop extensive reactions in the buildings. Subsequently, horizontal stiffness can produce firmness in the high rise structures and it resists all the horizontal and torsional movements of the building. Therefore, bracing and shear wall are the mainstream strategies for reinforcing the structures against their poor seismic behaviours. It is seen before that shear wall gives higher horizontal firmness to the structure when coupled with bracing however it will be another finding that in building model, which location is most suitable for shear wall and bracing to get better horizontal stability. In this study, a 15 story residential reinforced concrete building is assessed and analyzed using building code ACI 318-14 for bracing and shear wall placed at several different locations of the building model. The technique used for analysis is Equivalent Static Method by utilizing a design tool, finite element software named ETABS. The significant parameters examined are lateral displacement, base shear, story drift, and overturning moment.

Analysis of Effective Location of Shear Wall for High Rise Building with U – Configuration

2021 ◽  
Vol 23 (2) ◽  
pp. 167-176
Author(s):  
Sekar Mentari ◽  
Rosi Nursani
Keyword(s):  
Lateral Displacement ◽  
Center Of Mass ◽  
Shear Walls ◽  
Shear Wall ◽  
Rotational Axis ◽  
Moment Frame ◽  
Earthquake Loads ◽  
High Rise ◽  
Live Loads ◽  
Special Moment Frame

Indonesia is one of the countries that is prone to earthquakes. In addition to the dead loads, superimposed dead loads, and live loads, the design of buildings in Indonesia must be concerned with earthquake loads. Installing shear walls in the building structure as the Special Moment Frame Dual System is one of a solution to withstand earthquake loads. However, the location of shear walls must be considered, especially in buildings with horizontal irregularities. This study aims to determine the optimum location of the shear walls in a 10-storey building that has U-configuration with dynamic earthquake loads. This research is a numerical simulation ran by modelling the structure with software. To know the effect of the shear wall’s location on a building, several variations of the shear wall configuration with different positions have been conducted. It can be seen the lateral displacement of each floor and the shear force are the response structure to withstand the dynamic earthquake loads. Shear walls that are located close to the center of mass of the building are the optimum variation because the position of the shear wall is the closest to the core area of the building, which is the rotational axis of the building.

scholarly journals Seismic performance evaluation of high-rise steel buildings dependent on wind exposures

2019 ◽  
Vol 11 (3) ◽  
pp. 168781401983511
Author(s):  
Seonwoong Kim
Keyword(s):  
Seismic Performance ◽  
Response Spectrum ◽  
Slenderness Ratio ◽  
Lateral Force ◽  
Lateral Load ◽  
Seismic Load ◽  
Strong Wind ◽  
Steel Buildings ◽  
High Rise ◽  
Moderate Seismicity

The lateral load-resisting system of high-rise buildings in regions of low and moderate seismicity and strong wind such as the typhoon in the Korean peninsula considers the wind load as the governed lateral force so that the practical structural engineer tends to skip the evaluation against the seismic load. This study is to investigate wind-designed steel diagrid buildings located in these regions and check the possibility of the elastic design of them out. To this end, first, the diagrid high-rise buildings were designed to satisfy the wind serviceability criteria specified in KBC 2016. Then, the response spectrum analyses were performed under various slenderness ratio and wind exposures. The analyses demonstrated the good seismic performance of these wind-designed diagrid high-rise buildings because of the significant over-strength induced by the lateral load-resisting system of high-rise buildings. Also, the analysis results showed that the elastic seismic design process of some diagrid high-rise buildings may be accepted based on slenderness ratios in all wind exposures.

scholarly journals Modelling and Analysis of Irregular Geometrical Configured RCC Multi-Storey Building Using Shear Wall

10.29007/7bqt ◽  
2018 ◽  
Author(s):  
Rutvij Kadakia ◽  
Vatsal Patel ◽  
Anshu Arya Arya
Keyword(s):  
Carrying Capacity ◽  
Lateral Displacement ◽  
Shear Wall ◽  
Lateral Load ◽  
Load Carrying Capacity ◽  
Base Shear ◽  
Building Models ◽  
Load Carrying ◽  
G 14 ◽  
Storey Building

This study aims to model and study G+14 RCC building with different geometrical configurations and provision of shear wall at different location for zone IV and V. The various parameters like Lateral displacement, Storey drift, Drift ratio, Base Shear are compared for building models developed by using SAP2000 with and without shear wall. The provision of shear wall in multistoried building in zone V improved lateral load carrying capacity and also other parameters are enhanced in comparison with building in zone IV.

scholarly journals Optimization of Object-oriented 3D CAD Pre-processing System for Steel Structure of High-rise Buildings

2020 ◽  
Vol 18 (S3) ◽  
pp. 106-117
Author(s):  
Songyan Lu
Keyword(s):  
Three Dimensional ◽  
Processing System ◽  
Object Oriented ◽  
Steel Structure ◽  
System Optimization ◽  
Shear Wall ◽  
Wind Load ◽  
High Rise ◽  
High Rise Building ◽  
Wall Element

In this paper, the object-oriented method is used to study the pre-processing system of 3D high-rise building steel structure CAD. For the high-rise building steel structure design optimization system, users mainly contact with the functions of modeling, analysis, design checking and drawing. In fact, all these functions are carried out around the data stored behind. Three-dimensional high-rise building steel structure CAD pre-processing subsystem mainly integrates three-dimensional entity construction module, node design and editing module, construction drawing, processing drawing and CNC data output module. In this paper, the wall element is used to simulate the shear wall element, and the wall element can be automatically refined into a shell element composed of quadrilateral membrane element with rotational degree of freedom and generalized conforming bending plate element for thick and thin plate, which improves the speed and accuracy of analysis and calculation of shear wall. Various loads of high-rise building are calculated, especially the wind load of space action. It provides a new idea for wind load calculation of high-rise buildings. It is better to put forward a practical system optimization model, which can deal with the objective function, variables and constraints in a large number of engineering processing, and consider the actual constraints as fully as possible, which has strong practicability.

RETROFIT OF EXISTING BUILDINGS FOR EARTHQUAKE RESISTANCE

2007 ◽  
Vol 01 (02) ◽  
pp. 161-169
Author(s):  
K. H. TAN ◽  
T. BALENDRA
Keyword(s):  
Seismic Vulnerability ◽  
Lateral Displacement ◽  
Load Capacity ◽  
Side Wall ◽  
Shear Wall ◽  
Seismic Action ◽  
Long Distance ◽  
Soft Soils ◽  
High Rise ◽  
Frame Building

Buildings sited on soft soils are sometimes subjected to tremors due to earthquakes occurring some 400 to 700 kilometers away as a result of the amplifying effect of soft soils on low-frequency, long-distance waves. This study focuses on the seismic vulnerability of existing reinforced concrete (RC) buildings in Singapore that are designed primarily for gravity loads, and examines the use of externally bonded glass fiber-reinforced polymer (FRP) systems in retrofitting these buildings to resist lateral forces due to seismic action. Two case studies were considered: (1) a four-story frame building, representing typical low-rise buildings; and (2) a 25-story shear wall-frame building, representing typical high-rise buildings. Pushover tests were carried out correspondingly on 1/2-scale sub-frames and 1/5-scale shear walls. The one-and-a-half bay, two-storey frame specimens represent the critical part of the low-rise building while the I-shaped wall specimens represent the lower critical 2.6 stories of the high-rise building. Test results revealed a strong column–weak beam failure mechanism for both the un-retrofitted and retrofitted frames. The retrofitted frame was 30 percent higher in ultimate strength but 12 percent lesser in ultimate drift ratio compared to the un-retrofitted frame. For the wall specimens, sudden failure of the un-retrofitted shear wall was observed at the base of the side walls due to shear. Failure of the retrofitted wall was however more ductile with FRP debonding, followed by concrete crushing and FRP rupture at the compressive base of the side wall. The ultimate load capacity and lateral displacement of the retrofitted wall increased respectively by 45 and 66 percent.

scholarly journals Dynamic Response of Vertical Irregular Building As Per IS 1893(Part 1):2016

2020 ◽  
Vol 9 (4) ◽  
pp. 1957-1963
Keyword(s):  
Lateral Displacement ◽  
Response Spectrum ◽  
Structural Response ◽  
Relative Displacement ◽  
Response Spectrum Analysis ◽  
Soft Story ◽  
High Rise ◽  
Linear Dynamic ◽  
Story Drift ◽  
Story Building

Nowadays highly increases in the high rise building with architectural requirement in modern city. The purpose of the study is to understand the response of the building due to vertical irregularities. In this paper the incorporated irregularities are as per IS1893 (Part )1:2016 and study response of 12 story building frame 13 models with mass irregular, stiffness irregular and vertical geometric irregularities are analyze in ETABS 2017 by linear dynamic analysis i.e. Response spectrum Analysis. The various structural response parameters such as maximum storey displacement, inter story drift and storey shear are taken to compare the result. Mass irregularity is placed in fourth story, stiffness irregularity is provided in first storey and vertical geometric irregularity is provided in different upper floor. It is concluded that the soft story at bottom highly increases the lateral displacement of that floor, mass irregular at fourth story highly increases the storey shear below that storey and vertical geometric irregularity effect on the relative displacement of building. Combined irregularity highly effect performance of the building therefore chance of collapse also increases as increases in irregularities. All the comparison are represented graphically.

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