scholarly journals Comparative Analysis of RC Building Using Dampers and with Shear Wall under Wind Load: A Review

2021 ◽  
Vol 9 (10) ◽  
pp. 490-495
Author(s):  
Bashar Iqbal
Keyword(s):  
Comparative Analysis ◽  
Tall Buildings ◽  
Shear Wall ◽  
Wind Load ◽  
Lateral Loads ◽  
Human Beings ◽  
Friction Damper ◽  
Wind Analysis ◽  
Highly Sensitive ◽  
Rc Building

Abstract: The requirement of tall building in recent years increase the construction to satisfy the need of human beings. Very tall buildings located in high velocity wind area are highly sensitive therefore calculation and analysis of wind load is very impotent. Due to change in climatic condition the basic wind speed are increases. The main aim of this paper is to introducing the different techniques which is used to reduce the effect of wind load or lateral loads. Keywords: wind analysis, comparative analysis, TMD (tuned mass damper),friction damper, shear wall

scholarly journals Effect of Shear Wall on RC Building of Varying Heights

2019 ◽  
Vol 8 (12) ◽  
pp. 766-770
Keyword(s):  
Aspect Ratio ◽  
Response Spectrum ◽  
Shear Walls ◽  
Shear Wall ◽  
Seismic Zone ◽  
Lateral Loads ◽  
Base Shear ◽  
Aspect Ratios ◽  
Rc Building ◽  
The Comparative Study

Earthquake is an unexpected and expensive disaster for both livelihood and economy. In the modern day construction, there has been a lot of importance to make the structure resistant against lateral loads for multi storied building. Shear walls are an option of lateral load resisting system. The Concept of designing shear wall is to provide building structure with sufficient strength and deformation capacity to sustain the demands imposed by lateral loads with adequate margin of safety. The study focuses on effect of shear wall on R.C. building at different heights. For this purpose five models of different heights 15m, 30m, 45m, 60m and 75m and with different aspect ratios of 1.33, 0.66, 0.44, 0.33 and 0.26 respectively have been considered. All the models were designed for seismic zone V. For analysis purpose response spectrum method of analysis is considered as per IS: 1893-2002. The comparative study has been done for base shear, storey displacement, storey drift and storey stiffness. Utilization of shear walls when placed at corners of the building of low aspect ratio in high rise buildings is more effective compared to the low rise buildings of higher aspect ratio, as it gives the larger base shear and lesser displacement. The storey stiffness and storey drift is greatly improved when shear wall is placed at corners of the building

COMPARISON OF SHEAR WALLS AND MOMENT-RESISTING FRAMES IN EARTHQUAKE RESISTING BUILDINGS’ DESIGN

2020 ◽  
Vol 7 (1) ◽  
Author(s):  
Ahmad Sheikh Abdallah ◽  
Safwan Chahal
Keyword(s):  
Seismic Response ◽  
Tall Buildings ◽  
Shear Walls ◽  
Shear Wall ◽  
Structural Systems ◽  
Lateral Loads ◽  
Building Height ◽  
Seismic Zones ◽  
Prime Concern ◽  
Moment Resisting

The rapid growth of urban population and limited land space have greatly influenced the development of high-rise structures. Lateral loads have an important effect on the design as the building height increases. In order to resist lateral loads, safety and minimum damage should be the prime concern when designing tall buildings. To meet these requirements, the structure should have adequate lateral strength and lateral stiffness and sufficient ductility. Among the various structural systems, shear wall systems or moment resisting frame systems could be a point of choice for designers. Thus, it is important to review and observe the behavior of these systems under seismic effect. This study compared the seismic response of the above structural systems using a case study application at variable seismic zones (Zone 2B, Lebanon Zone, Zone 3, and Zone 4) and at different building stories (Eight and 12-story building). The seismic response is measured in term of time-period, maximum story displacement, maximum story drift, amount of steel and concrete needed. The outcome of this study portrayed that a shear wall system is more efficient in terms of cost and lateral load resistivity regardless of the building height and in the four seismic zones mentioned before.

scholarly journals Comparative analysis of Wall Belt Systems, Shear Core Outrigger Systems and Truss Belt Systems on Residential Apartment

2021 ◽  
Vol 9 (10) ◽  
pp. 1781-1791
Author(s):  
Pankaj Patel
Keyword(s):  
Comparative Analysis ◽  
Support System ◽  
Shear Wall ◽  
Central Core ◽  
Horizontal Load ◽  
Seismic Zone ◽  
Lateral Loads ◽  
Structural System ◽  
Result Analysis ◽  
Belt System

Abstract: The outrigger structural system is one of the horizontal load resisting systems. In this system the belt truss ties all the external columns on the periphery of the structure and the outriggers connect these belt trusses to the central core of the structure thus restraining the exterior columns from rotation. The shear wall was implemented to oppose lateral loads. To complete these characteristic the Outrigger & wall belt system used in the structure. In this project a G+10 Storey structure has analysed using seven different cases named as RA1 to RA7-OTB. 1 to 7 indicates single outrigger system, shear core outrigger system truss belt support system with optimized trusses, at various locations under seismic zone III. The built up area used for various case as 315 sq. m. After performing result analysis, the comparative analysis of all the cases shows that the most efficient case for the above study is Case RA4. Here for efficiency of the project, two types of optimized truss belt support which has performed well and observed as most optimized and correspondingly minimum in all the cases. Keywords: Truss wall belt support, core wall belt support, outrigger, wall belt, CSI-ETABS, multi-storey

scholarly journals Wind Analysis of Tall Buildings for Vertical Irregularity : A Review

2020 ◽  
pp. 121-126
Author(s):  
Syed Mudassir ◽  
Kuldeep Dabhekar ◽  
Syed Faiz ◽  
Isha P. Khedikar
Keyword(s):  
Tall Buildings ◽  
Bending Moment ◽  
Wind Load ◽  
Base Shear ◽  
Structural Behaviour ◽  
Analysis And Design ◽  
Irregular Structure ◽  
Axial Forces ◽  
Tall Structures ◽  
Wind Analysis

Now every day, various buildings are being built for different purposes such as residential, commercial, and industrial etc. In general, in order to stabilize these longitudinal tall structures for both loads such as gravity and lateral (wind and earthquake) loads are required to take when considering the analysis and design. In addition to this there are several types of structures or buildings having different geometry in vertical and horizontal plan in the sense regular or irregular. This paper presents detailed review on the analysis of vertically irregular structure subjected to wind loads, the failure of structure starts from the weak point or joint. This weakness is exacerbated by the uneven distribution of mass, changes in elasticity or stiffness and also changes in the vertical geometry of the structure. Properties that have objections to physical or geometric regularity are referred to as irregular structures. The present study shows a review on analysis and effects in vertical irregular structure under lateral load especially in case of wind load. Many structural software and standard codes are reviewed for the creation of all members under wind load. At the end of this paper concerns the comparison of regular building with irregular structure and describes the effects in vertical irregular structure with the help of structural behaviour such as displacement, drift, axial forces, base shear and bending moment etc.

Seismic and Wind Analysis of RCC Building with Different Shape of Shear Wall and Without Shear Wall

2022 ◽  
Vol 10 (1) ◽  
pp. 674-677
Author(s):  
Bayi Bage
Keyword(s):  
Ground Motion ◽  
Inelastic Deformation ◽  
Shear Walls ◽  
Shear Wall ◽  
Lateral Loads ◽  
Wind Analysis ◽  
Earthquake Resistant ◽  
Earthquake Resistant Structures ◽  
The Impact ◽  
Resistant Structure

Abstract: In India, about 50-60% of the total area is vulnerable to the seismic activity. Earthquakes are the vibrations or the motion of the ground due to release of energy. The vibrations or ground motion are the important factors to analyze and design, the earthquake resistant structure. So, to reduce the impact of earthquake different efforts has been done in this field. Basically, earthquake exerts lateral as well as vertical forces so to dissipate those forces and the vibration in system earthquake resistant structure has been design. The design of earthquake resistant structures depends on providing stiffness, strength and inelastic deformation which withstand the earthquake forces. As the height of the structure increases the lateral loads acted on the structure increases and decrease in the stiffness, so to counteract those shear walls and different damping devices has been used. Keywords: IS Code 1892-Part-1:2016; U - Section, Z- Section, H-Section, T-Section

scholarly journals Comparative Study on the Evaluation of Wind Load on Buildings Using Computational Fluid Dynamics and IS: 875(Part-3)

2018 ◽  
Vol 7 (1) ◽  
pp. 16-18
Author(s):  
J. Ashok ◽  
Shirlin Charles ◽  
C. Umarani
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Cross Sections ◽  
Incidence Angle ◽  
Weighted Average ◽  
Tall Buildings ◽  
Wind Load ◽  
Wind Pressure ◽  
Lateral Loads ◽  
Ansys Fluent

Tall Buildings are highly susceptible to wind induced lateral loads and is required to be designed with greater accuracy. The codal provision IS 875 (part 3) which is usually used, has a limitation that the coefficient of pressure Cpvalues available are, only for 0 and 90 degrees wind incidence angles and for standard cross sections of buildings only. Therefore wind tunnel experiments are carried out to measure wind loads which provide reliable results than the code. This Paper deals with, computational fluid dynamics, an alternative and highly dependable tool to predict the wind related phenomena on buildings. A numerical evaluation of wind pressure is done for the different cases of buildings in IS 875 part-3. Wind load obtained by using IS 875 part-3 are compared with the result obtained from CFD in ANSYS Fluent 15.0 and results are found to be in good agreement .The mean area weighted average values of Coefficient of pressure are also computed for various wind incidence angle.

scholarly journals ANALYSIS OF MAXIMUM DEFORMATION OF HIGH RISE BUILDINGS WITH OUTRIGGER SYSTEM AGAINST WIND LOAD

2020 ◽  
Vol 6 (2) ◽  
pp. 141-149
Author(s):  
Fadli Kurnia ◽  
Resti Nur Arini ◽  
Dwi Ariyani ◽  
Soni
Keyword(s):  
Tall Buildings ◽  
Wind Load ◽  
Wind Loads ◽  
Structural Systems ◽  
Maximum Deflection ◽  
Lateral Loads ◽  
Optimum Location ◽  
Maximum Deformation ◽  
High Rise ◽  
Story Drift

Outrigger structural systems are quite effective using the lateral loads on tall buildings, one of the main benefits of utilization outrigger is that it can reduce deformation and the danger of inter-story drift caused by lateral loads acting on the building. In this case, wind loads will be viewed as a lateral load because the wind load acting on tall buildings can also cause deformation of the building. The implementation of the outrigger system is viewed from different positions to see the deformation that occurs and the placement of the maximum location. The results of the analysis of wind loads reviewed on these buildings have proven that the use of outriggers in buildings can reduce displacement by 19.58%, and inter-storey drifts by 13.24%, which is applied in a position of ½ of the building height. The optimum location of the outrigger installation can also be determined by calculating the analysis of the maximum deflection that occurs on the 40th floor.

Drift design of steel-frame shear-wall systems for tall buildings

2002 ◽  
Vol 11 (1) ◽  
pp. 35-49 ◽  
Author(s):  
Hyo Seon Park ◽  
Kappyo Hong ◽  
Ji Hyun Seo
Keyword(s):  
Tall Buildings ◽  
Shear Wall ◽  
Steel Frame

scholarly journals Seismic Performance of Bracing, Diagrid and Outrigger System

2020 ◽  
Vol 9 (7) ◽  
pp. 32-36
Keyword(s):  
Seismic Performance ◽  
Tall Buildings ◽  
Lateral Load ◽  
Lateral Loads ◽  
Steel Buildings ◽  
Efficient System ◽  
Effective System ◽  
Tension And Compression ◽  
Lateral Bracing ◽  
Bracing System

In this paper bracing, diagrid and outrigger system have been analyzed for comparing the seismic performance of multistorey buildings. Bracing system is a very efficient system which can be used as a lateral load resisting system in concrete and steel buildings, in this system lateral loads are transferred through lateral bracing by undergoing in tension and compression .diagrid is another effective and efficient system that can be used as lateral load resisting system in steel and concrete tall buildings, in this system lateral loads are transferred by inclined members of the building. Another very effective system which commonly used for resisting lateral loads in concrete and steel high rise building is outrigger system, in this system lateral loads will be resisted by outrigger belt truss and core shear wall. Location and number of outrigger and type of bracing is very important which needs to be optimized in this system. In this paper comparison of bracing, diagrid and outrigger system have been studied on a 24 storey by using a standard package of ETABS 2017.

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