scholarly journals DYNAMIC ANALYSIS OF MULTI STOREY BUILDING WITH AND WITHOUT SHEAR WALL

2021 ◽  
Vol 5 (12) ◽  
Author(s):  
Sarwan Gupta ◽  
Shubham Gaikar ◽  
Kewal Patil ◽  
Swapnil Shelar ◽  
Harshad Thakare
Keyword(s):  
Dynamic Behaviour ◽  
Spatial Configuration ◽  
Response Spectrum ◽  
Slenderness Ratio ◽  
Shear Walls ◽  
Response Spectrum Analysis ◽  
Seismic Zones ◽  
Different Types ◽  
Structural Configurations ◽  
Storey Building

Nowadays, the number of buildings is constructed and designed according to the requirements and aesthetic viewpoints of the buildings every day. Most buildings are constructed in a certain spatial configuration, such as X-shaped, V-shaped, and the x and y coordinates are not parallel to the structure. The earthquake caused more damage to the different structures of the building. The main problem is the slenderness ratio. The main purpose of this project is to compare the dynamic characteristics of buildings with different structural configurations in seismic zones and soil types. In this study, a 12-story space configuration structure was considered, and the height of 3m on each floor did not exceed 36m, with shear walls and supports at different positions of the building. The dynamic behaviour of buildings in all seismic zones of magnitude III and on different types of soil (such as media) is studied. The structure has peripheral beams that carry RC shear walls with a thickness of 230 mm. The response spectrum analysis was carried out by using software of ETABS version

scholarly journals DYNAMIC ANALYSIS OF MULTI STOREY BUILDING WITH AND WITHOUT SHEAR WALL

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Sarwan Gupta ◽  
Shubham Gaikar ◽  
Kewal Patil ◽  
Swapnil Shelar ◽  
Harshad Thakare
Keyword(s):  
Dynamic Behaviour ◽  
Spatial Configuration ◽  
Response Spectrum ◽  
Slenderness Ratio ◽  
Shear Walls ◽  
Response Spectrum Analysis ◽  
Seismic Zones ◽  
Different Types ◽  
Structural Configurations ◽  
Storey Building

Nowadays, the number of buildings is constructed and designed according to the requirements and aesthetic viewpoints of the buildings every day. Most buildings are constructed in a certain spatial configuration, such as X-shaped, V-shaped, and the x and y coordinates are not parallel to the structure. The earthquake caused more damage to the different structures of the building. The main problem is the slenderness ratio. The main purpose of this project is to compare the dynamic characteristics of buildings with different structural configurations in seismic zones and soil types. In this study, a 12-story space configuration structure was considered, and the height of 3m on each floor did not exceed 36m, with shear walls and supports at different positions of the building. The dynamic behaviour of buildings in all seismic zones of magnitude III and on different types of soil (such as media) is studied. The structure has peripheral beams that carry RC shear walls with a thickness of 230 mm. The response spectrum analysis was carried out by using software of ETABS version.

scholarly journals Dynamic Behaviour Comparison of an Irregular Edifice with Different Locations of Floating Column and Shear Wall

2021 ◽  
Vol 9 (12) ◽  
pp. 1279-1282
Author(s):  
Varun Mahajan
Keyword(s):  
Spectrum Analysis ◽  
Dynamic Behaviour ◽  
Response Spectrum ◽  
Shear Walls ◽  
Shear Wall ◽  
Earthquake Resistance ◽  
Base Shear ◽  
Seismic Behaviour ◽  
Response Spectrum Analysis ◽  
Earthquake Resistant

Abstract: Architects nowadays develop attractive edifices, and floating columns are widely employed in this process. Floating columns are used not only to provide a magnificent perspective but also when a vast open area is necessary. Edifices with irregular configurations are more vulnerable to earthquakes and hence, suitable shear wall placement is required to ensure the edifice's stability. Many multi-storey edifices collapsed in seconds after the Bhuj Earthquake (Jan 26, 2001), due to the presence of soft stories, floating columns, and mass anomalies. As a result, knowing the seismic reactions of these buildings are vital for constructing earthquake-resistant assemblies. The relevance of a Floating Column and the existence of a shear wall in an irregular multistorey building is highlighted in this study. Dynamic seismic behaviour of a G+18 irregular edifice with different locations of the floating column and different positions of the shear wall is explored in this research. The edifice is analysed and compared with the model without shear walls and floating columns to examine the alterations. The dynamic analysis is carried out using Response Spectrum Analysis and storey drift, storey displacement and base shear are calculated and finally, software compression is computed for different zones. The analysis is carried out by Indian standardized codes IS 1893:2016 and IS 456:2000 which are the codes specified by the Bureau of Indian Standards for earthquake resistance edifice design and plain and reinforcement concrete design respectively. Keywords: Floating Column, Shear Wall, Irregular Edifice, Seismic behaviour, Response Spectrum Analysis, storey drift, storey displacement, base shear.

scholarly journals Behavior of Piles with Raft Foundation using Safe Software

2019 ◽  
Vol 8 (11) ◽  
pp. 1432-1436
Keyword(s):  
Pile Foundation ◽  
Response Spectrum ◽  
Time History ◽  
Single Pile ◽  
Response Spectrum Analysis ◽  
Pile Diameter ◽  
Raft Foundation ◽  
History Analysis ◽  
Soil Settlement ◽  
Storey Building

Piles with raft foundation are a hybrid type of foundation in which the loads coming from the super structure is partly shared by the raft foundation and partly by the piles. A G+20 Storey building is analysed and designed in ETABS software. The modelling and analysis of piles with raft foundation is done in SAFE Software by importing the building loads. The storey drift and story displacement of the structure has been studied for the superstructure loads using response spectrum analysis and time history analysis in both X and Y axes. Then behavior of piles with Raft foundation is studied in this work by considering different parameters. The Pile diameter, Spacing of piles, Number of piles, and raft thickness are varied and keeping height of the pile as constant, the behavior of pile with raft foundation is determined. Pile with Raft foundation is economical when compared to a single pile foundation or Raft foundation. In the present work of piled with raft foundation, the load is shared between pile and raft. Hence Soil settlement is gradually reduced when the piles are introduced below the raft. Finally the optimum dimensions of pile diameter and thickness of the raft are obtained for minimum settlement.

scholarly journals Seismic Analysis of Multistoried Building on Sloping Ground with Ground, Middle and Top Soft Storey

2020 ◽  
Vol 9 (11) ◽  
pp. 112-118
Keyword(s):  
Seismic Analysis ◽  
Response Spectrum ◽  
Soft Soil ◽  
Shear Walls ◽  
Shear Wall ◽  
Sloping Ground ◽  
Soft Storey ◽  
Spectrum Method ◽  
Type C ◽  
Storey Building

Buildings that rest on sloping ground are different from those that rest on level ground. Buildings located on sloping ground are much more prone to earthquakes because they are, in general, irregular, asymmetrical and tensional. Therefore, the movement of the ground affects them much more. Therefore, there is increased insertion of the shear wall to resist side loading. In this work, the multi-storey building G + 20 is analyzed on slopes of 0o and 24o. For the improvement and analysis of full-filled shear walls, GMT, type L and type C soft soil is used. The structure is analyzed by the response spectrum method and responses such as displacement, ground deviation, period and base slices are evaluated and compared using E-TAB software.

scholarly journals Seismic analysis of hybrid structures with and without shear walls

2021 ◽  
Vol 889 (1) ◽  
pp. 012045
Author(s):  
Mir Rahman Naseri ◽  
Balwinder Singh
Keyword(s):  
Spectrum Analysis ◽  
Seismic Analysis ◽  
Response Spectrum ◽  
Cost Savings ◽  
Shear Walls ◽  
Hybrid Structure ◽  
Hybrid Structures ◽  
Response Spectrum Analysis ◽  
Building Projects ◽  
High Rise

Abstract A hybrid structure is one that combines more than two different types of materials to compensate for weak places while also maximizing strength. Hybrid steel and concrete frameworks, as well as other modern materials, are unified at the member or framework unit. Hybrid structures are frequent in high-rise and super-high-rise building projects, and they provide the benefit of cost savings. Shear walls are built to withstand lateral loadings like earthquakes and winds loads. The response spectrum analysis approach is frequently used to measure design stresses for earthquake-prone structures. The modelling and analysis of the regular plan structures are done by CSI ETABS 2019 in IV seismic zones, on type II (medium soil) of India According to IS 1893 (Part-1) 2016. The aims of this study Response spectrum analysis of 41 storey RCC and hybrid structures with shear walls and without shear walls are compared. RCC and hybrid structures with shear walls showed lower storey displacement, storey drift, and story shear values than RCC and hybrid structures without shear walls, according to the results of this study. The research results will be helpful as a reference and a tool for seismic analysis of hybrid structures.

scholarly journals Performance Analysis of Braced Reinforced Concrete Building in Sloped Terrain

2020 ◽  
Vol 9 (4) ◽  
pp. 2424-2429
Keyword(s):  
Seismic Analysis ◽  
Response Spectrum ◽  
Analysis Tool ◽  
Base Shear ◽  
Lateral Direction ◽  
Sloping Ground ◽  
Hill Slope ◽  
Different Types ◽  
The Hill ◽  
Storey Building

The Buildings on the hills differs from other buildings constructed in plain terrain. Each floor of building steps back towards the hill slope and at the same time buildings may have designed with setbacks configuration also. Buildings constructed in hilly areas are more vulnerable to seismic environment. This study is on generating a 3D analytical model of multi-storey buildings analyzed using structural analysis tool ‘ETABS” to study the effect of varying height of columns due to sloping ground and the effect of bracing at different positions in a different configuration of the building during an earthquake. Seismic analysis has been done using the response spectrum method. The performance of the buildings on the sloping ground is highly vulnerable to earthquake on each storey level. Buildings resting on sloping ground with step back configuration are compared to buildings resting on the plain ground with same type load applied to each of the structure. From this study entire modelling the behaviour of normal ten storey building, step back, set-step back ten storey building is studied, it is found that the displacement and base shear value shows the performance of step back building and set-step back building. This is research also focus on effective placement of bracing with different types and in different positions. The displacement values show better performance by providing X bracing in the lateral direction.

scholarly journals Seismic Effect on Multi Storey Building with Different Positioning Of Floating Column

2019 ◽  
Vol 8 (11) ◽  
pp. 2807-2811
Keyword(s):  
Earthquake Engineering ◽  
Seismic Analysis ◽  
Response Spectrum ◽  
Seismic Effect ◽  
Masonry Buildings ◽  
Seismic Excitations ◽  
Utility Value ◽  
Response Spectrum Analysis ◽  
The World ◽  
Storey Building

Modern multi storied buildings are being constructed with floating column at the ground floor to meet the requirements of parking or other aesthetic or utility value. Masonry buildings have proved to be most vulnerable when earthquakes strike in any part of the world. The damage caused by the earthquake cannot be eliminated but it could be mitigated by taking extra precaution. Floating columns can be constructed at any level or storey, at any point in the construction area. Seismic analysis is a major tool in earthquake engineering; this is used to understand the response of buildings due to seismic excitations in a simpler manner. Response Spectrum Analysis was used. Assumptions were made to study the seismic effect on different position of floating column for a six storied RC framed building.

scholarly journals Response Spectrum Analysis of Multi Storied Building on Sloping Ground with Ground, Middle and Top Soft Storey

2021 ◽  
Author(s):  
Shankar H. Sanni ◽  
Ratnakala S. Bidreddy
Keyword(s):  
Spectrum Analysis ◽  
Response Spectrum ◽  
Shear Wall ◽  
Response Spectrum Analysis ◽  
Sloping Ground ◽  
Soft Storey ◽  
Time Period ◽  
G 12 ◽  
Flat Ground ◽  
Storey Building

In the concrete era of construction activities, there is scarcity of land especially in metro cities. Even though if there is availability of land it may in the sloping ground, hillocks or on land filled areas, in such areas there will be difficulty in the construction and design aspects. To maintain the slope of the strata, different degrees of such buildings step back towards the slanting slope and may likewise also have set back simultaneously. Hence in the present paper, an attempt has been made to study, G+12 storey building assumed to be in flat ground and also on sloping ground with 20 degree inclination. The model considered to be a soft storey with infill walls and two different shear wall arrangements. The building has been modelled in ETABS software with response spectrum method of analysis. The study reveals that model with shear wall improves the performance of the structure in terms of displacement, drift and time period apart from the fact that the structure being constructed in normal ground or sloping ground.

scholarly journals Effect of Shear wall Geometry on Ten Storey Building with Raft and Fixed base Foundation

2019 ◽  
Vol 9 (1) ◽  
pp. 205-208
Keyword(s):  
Shear Walls ◽  
Shear Wall ◽  
Soil Conditions ◽  
High Rise ◽  
Seismic Zones ◽  
Raft Foundation ◽  
Mat Foundation ◽  
Different Shapes ◽  
Wall Geometry ◽  
Storey Building

:Raft foundation is widely used for high-rise buildings where presence of shear wall is very common. Shear Wall resists a major portion of the lateral load of high-rise buildings. So, presence of shear wall on mat foundation causes significant change in pattern and intensity of loading on mat foundation. The present work involved an investigation of effect of shear wall geometry in different seismic zones with and without the presence of raft foundation. Multi storey building with ten storey is analysed for the storey drift, storey displacement and base shear. The analysis of building is done by response spectrum analysis. The different shapes of shear walls C,L,F,I with same plan area is considered. The effect of shear wall geometry is studied in zone II, zone III, zone IV, zone V. Loads and load combinations selected based on IS 456-2000 and IS 875-1987 code. Three types of soil conditions are considered typeI ,typeII, typeIII.Raft foundation is designed by meshing the slab into equal quadrilaterals.Assigning of area springs to the each quadrilateral.Meshing is done inorder to convert the infinite solution into finite solution.The different shapes of the shear walls is analysed in zone V with the raft foundation in type III.The results are compared with and without the raft foundation ,conclusions are drawn that the best shape of the shear wall suits in different seismic zones.

scholarly journals Evaluating the Effect of Local Slenderness on the Response of Silo Supporting Steel Structure

2021 ◽  
Vol 9 (VI) ◽  
pp. 4546-4551
Author(s):  
Aiswarya Lekshmi GS
Keyword(s):  
Response Spectrum ◽  
Slenderness Ratio ◽  
Local Buckling ◽  
Steel Structure ◽  
Mode Shapes ◽  
Lateral Loads ◽  
Response Spectrum Analysis ◽  
Compression Members ◽  
Load Carrying ◽  
Steel Sections

Silos are commonly used for bulk storage of grain, coal, cement, carbon black, food products etc. Here in this project evaluates the effect of local slenderness on silo supporting steel structure. The strength of compression members made of steel sections depends on their slenderness ratio. Higher strengths can be obtained by reducing the slenderness ratio. Local buckling has the effect of reducing the load carrying capacity of columns and beams. Therefore, it is desirable to avoid local buckling before yielding of the member. For finding out the local slenderness, a silo supporting steel structure is modelled, analysed and designed using ETABS. Wind loads and earthquake loads as per Indian Standard codes are applied on the structure in order to find out the effect of lateral loads on slenderness limit. Modal analysis is done to get the required number of mode shapes. Response spectrum analysis is done to determine the dynamic characteristics of the structure.

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