scholarly journals Seismic behavior of transfer girder in multi-story building

2018 ◽  
Vol 7 (3.3) ◽  
pp. 36
Author(s):  
Samrat Guptaa ◽  
P R. Kannanra jkumar ◽  
P T. Ravichandran ◽  
L Krishnaraj
Keyword(s):  
Response Spectrum ◽  
Prototype Model ◽  
Base Shear ◽  
Frame Building ◽  
Time Period ◽  
Interstorey Drift ◽  
Car Park ◽  
Rc Frame Building ◽  
Story Building ◽  
Storey Building

Urbanization had led to many housing problems in India. Scarcity of land is one such biggest problem in India. This issue is one of the most pivotal issues that need to be provided with a swift and efficient solution if we want to grow as a nation whilst achieving the goals we are aiming at. Hence, there is a rise in many Multi storey and Highrise structure. Rise in car park and open column free space for auditoriums. The study focuses on the study of seismic assessment of the Multi-storey structure with transfer girder. The use of transfer girders in a building will help to a greater extent to minimize the issue regarding the lack of space for car parking. A building prototype model with transfer girder at different level was analyzed using elastic linear response spectrum. Different results such as Base Shear, Time Period, Interstorey Drift and Displacement had been analysed in different model and optimum modeling of Multi storey RC Frame building with transfer girder system using SAP 2000 and also comparison on performance of Multi storey building by placing the transfer girder in different level has been carried out. 

scholarly journals Seismic Performance of Multistorey RC Frame Building With The Soft Storey and Masonry Infill

2021 ◽  
pp. 650-656
Author(s):  
Kugan K ◽  
Mr. Nandha Kumar P ◽  
Premalath J
Keyword(s):  
Time History ◽  
Seismic Loading ◽  
Rc Frame ◽  
Base Shear ◽  
Maximum Displacement ◽  
Soft Storey ◽  
Masonry Infills ◽  
Frame Building ◽  
History Analysis ◽  
Rc Frame Building

In this study, four geometrically similar frames having different configurations of masonry infills, has been investigated. In this article attempts are made to explain the factors that impact the soft storey failure in a building are compared with different type of infill. That is Four models like RC bare frame, RC frame with brick mansonry infill, RC frame with brick infill in all the storeys exept the firstsoft storey, RC frame with inverted V bracing in the soft storey. Time history analysis has been carried out for a G+8 multistoried building to study the soft storey effect at different floor levels using E tabs software. The behavior of RC framed building with soft storey under seismic loading has been observed in terms of maximum displacement ,maximum storey drift, base shear and storey stiffness as considered structure.

scholarly journals Seismic Analysis of a Residential Building Considering Different Types of Opening Arrangement in the Infill Wall

2021 ◽  
Vol 9 (10) ◽  
pp. 649-656
Author(s):  
Kapil Shankar Soni
Keyword(s):  
Failure Modes ◽  
Seismic Analysis ◽  
Response Spectrum ◽  
Residential Building ◽  
Base Shear ◽  
Seismic Behaviour ◽  
Infill Wall ◽  
Infill Walls ◽  
Time Period ◽  
Natural Time

Abstract: Infill walls are inevitable components of any structure to create dispassion between interior space and external condition. In general, there are some prevalent openings inside the infill walls because of practical needs, architectural observations or aesthetic inspections. In current design practice, strength and inflexibility contribution of infill walls aren't thought of. However, the presence of infill walls may impact the seismic reaction of structures exposed to earthquake loads and cause a conduct which is not the same as that estimated for a bare frame. Additionally, partial openings inside infill walls are significant parameter prompting the seismic behaviour of infilled frames in this manner retreating lateral stiffness and strength. In this study is proposed to compare various models of buildings considering the openings (10% of surface area) at different locations in the infill walls for the seismic behaviour. A G+13 residential building is considered in Zone III with soil type II and analysis is carried out by Response Spectrum Method. Various parameters are considered such as Natural Time period, Base shear, Storey displacement, Storey drift and Storey stiffness were studied. The comparative study could simplify designers and code developers in selecting and recommending appropriate analytical models for estimating strength, stiffness, failure modes and other properties of infill frames with openings. Keywords: Residential Building, Openings Infill Wall, ETAB Software, Natural Time Period, Base Shear, Storey Shear, Storey Displacement, Storey Drift, Storey Stiffness.

scholarly journals Seismic Behaviour of Offshore Steel Jacket Platform Braced in Horizontal and Vertical Planes

2019 ◽  
Vol 8 (12) ◽  
pp. 1947-1953
Keyword(s):  
Seismic Analysis ◽  
Response Spectrum ◽  
Vertical Plane ◽  
Static Method ◽  
Base Shear ◽  
Response Spectrum Method ◽  
Seismic Behaviour ◽  
Jacket Platform ◽  
Spectrum Method ◽  
Time Period

The offshore jacket platforms are primarily installed in the large oceans mainly for drilling the crude oil, carbohydrates and production of electricity. The current studies emphasize on the structural performance of offshore deck jacket platform with different bracing systems. Earthquake analysis has been performed to calculate the seismic responses, with the help of bracings to control the seismic induced vibrations of the jacket platforms. For this study, a jacket platform made up of steel members has been modeled and then analyzed under earthquake and wave loadings. This paper mainly deals to compute and compare the seismic behavior of offshore steel deck platform using SAP 2000 v20 software with bracing in the horizontal plane and bracing in both horizontal and vertical planes. The total number of 8 models has been analyzed in the SAP2000 software with bracing i.e. X, V, Inverted V and K in the vertical plane and bracing i.e. X, V, Inverted V and K in both horizontal and vertical plane. A relative study has been carried out in Time period, deck displacement and base shear. Seismic analysis using linear static, i.e. Equivalent static method (ESA) and linear dynamic, i.e. Response spectrum method (RSA) has been performed. Further deck displacement, time period and base shear are determined by Equivalent static method and Response spectrum method for various types of bracing models in both horizontal and vertical planes. Among the all various types of bracing models, Inverted V bracing in the vertical plane is found to be the optimum model among all other models.

scholarly journals Seismic Performance Evaluation of Multi-Storey Building Having Soft Storey With Different Location of Shear Walls

2020 ◽  
Vol 9 (11) ◽  
pp. 50-55
Keyword(s):  
Shear Walls ◽  
Base Shear ◽  
Soft Storey ◽  
Seismic Performance Evaluation ◽  
Soft Story ◽  
Time Period ◽  
Multistory Building ◽  
Story Drift ◽  
Seismic Behaviors ◽  
Storey Building

Present scenario growth of Multistory building is incredibly high attributable to fast growth everywhere around the globe. Open first story is usually provided for congested parking space, reception lobbies, party areas or any purpose in multistory building. However just in case of multistory building with soft story provides reduced performance. There are numerous aspects that effects on the behavior of multistory building like irregular plan within the structure. In the present work, study of various locations of weak stories is being considered for the analysis. To study of various locations on the seismic behavior of multistory building, linear static analysis (ESA) and linear dynamic analysis (RSA) in ETABs 2016 version is applied. Some seismic constraints like time period, story shear, story displacement, story drift and base shear are tried. The seismic behaviors of multistorey building with soft stories are administered.

scholarly journals Response analysis of a multi-story building structure with a variety of horizontal irregularities and shear wall geometries

2021 ◽  
Vol 933 (1) ◽  
pp. 012008
Author(s):  
A H Prathama ◽  
M Teguh ◽  
F Saleh
Keyword(s):  
Urban Areas ◽  
Response Spectrum ◽  
Structural Models ◽  
Shear Walls ◽  
Shear Wall ◽  
Response Analysis ◽  
Base Shear ◽  
Drift Ratio ◽  
Story Drift ◽  
Story Building

Abstract The growing growth of human activities has led to changes in housing patterns in urban areas. The land crisis in urban areas has made land prices uneconomical, so buildings are designed vertically. One solution to resist earthquakes in multi-story buildings is to add a shear wall structure with the proper profile and layout. Shear wall designs with variations influence the base shear, drift ratio, lateral deflection, and story drift patterns. This study presents the structural response comparison of buildings against variations in the profile and layout of shear walls subjected to earthquake loads. Force Based Design method utilizing the response spectrum approach was adopted in the analysis and carried out using SAP200. Six structural models comprise a frame without shear walls, three L-profile shear walls, two I-profile (straight) shear walls. The simulation results of the overall structural models show that the profile and layout configuration of shear walls in the frame structure of a multi-story building correlates directly to the performance of base shear, drift ratio, and story drift with relatively comparative conditions.

scholarly journals Seismic Assessment of RC Frame Building with Different Location of Flag Wall

2021 ◽  
pp. 30-36
Author(s):  
Gor Shreya Anilkumar ◽  
Jigar Zala
Keyword(s):  
Seismic Performance ◽  
Lateral Displacement ◽  
Building Construction ◽  
Local Response ◽  
Base Shear ◽  
Frame Building ◽  
Construction Type ◽  
Rc Frame Building ◽  
Earthquake Zone ◽  
Wall System

The seismic performance of multi-storey buildings is controlled by their lateral load resisting system. In recent few years, several new structural techniques have been developed to improve the performance of reinforced concrete (RC) multi-storey buildings subjected to lateral stiffness and the excitations. The use of flag wall system (i.e. the RC walls in selected floors, not reaching the foundation) can be an efficient way to achieve this goal. The flag wall at the selected place and location checks the linear static and linear dynamic analysis and will finds the local response like Lateral displacement, Base shear, Storey stiffness, Storey drift by using ETABs software with different patterns. This study based on earthquake zone III and soil type is medium soil and building construction type is RCC building. This study evaluates the seismic performance of such flag wall structural systems used as an alternative to evaluate optimum location of flag wall.

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 Earthquake Analysis, of RC Structure using Different Codes and Different Countries

2019 ◽  
Vol 9 (2) ◽  
pp. 1966-1971
Keyword(s):  
Seismic Behavior ◽  
Response Spectrum ◽  
Residential Building ◽  
Structure Modeling ◽  
Base Shear ◽  
Time Period ◽  
Rc Structure ◽  
G 21 ◽  
G 11 ◽  
Deflection Limit

This paper presents a seismic behavior of various structures using different codal provision as given Indian code, American code, &Newzealand code for earthquake analysis. This study is carried out on residential building of G+5, G+11, G+21 of Special RC structure . Modeling of the structure is done as per ETAB software. Time period of the structure in both the direction is taken from the software as per the three standard (9 model are made 3 model for each code). A comparative analysis is performed in terms of base shear, deflection limit, stores drift at linearly static and response spectrum.

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 Comparative Study on Multistorey Building with And Without Floating Columns

2020 ◽  
pp. 418-422
Author(s):  
Shubham Mandwale ◽  
Nikhil Pitale
Keyword(s):  
Comparative Study ◽  
Drift Time ◽  
Building Structure ◽  
Base Shear ◽  
Space Requirement ◽  
Ground Floor ◽  
Construction Techniques ◽  
Time Period ◽  
The Comparative Study ◽  
Storey Building

Modern construction techniques and good architectural views of building come with the concept of floating column. FC gives good architectural views to the structure also for the space requirement for parking or movements of vehicles floating column is delivered at the ground floor. Two models of six storey building structure with FC and structure with regular columns for the comparative study on the parameters such as flat displacement, storey drift, time period and base shear. RSA has been completed using ETABS 2016 software.

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