scholarly journals Pengaruh Posisi Dinding Geser Terhadap Kinerja Struktur Pada Gedung Tidak Beraturan Dengan Menggunakan Metode Response Spectrum

2018 ◽  
Vol 18 (1) ◽  
pp. 15-24
Author(s):  
Arif Kurnia ◽  
Sri Hartati Dewi ◽  
Mahadi Kurniawan

[ID] Dinding geser adalah slab beton bertulang yang dipasang dalam posisi vertikal pada sisi gedung. Dinding geser merupakan salah satu sistem yang berfungsi menjaga kekakuan struktur, maka posisi dinding geser ditempatkan pada lokasi-lokasi tertentu, dengan itu penggunaan dinding geser dapat digunakan secara efektif dalam menahan beban yang diterimanya. Pemodelan struktur gedung dilakukan dengan bantuan software ETABS. Analisis beban gempa menggunakan metode respons spektrum. Pemodelan struktur dibuat untuk gedung tanpa menggunakan dinding geser dan 3 model gedung menggunakan dinding geser dengan posisi yang berbeda. Penentuan posisi dinding geser dilakukan dengan cara uji coba sehingga didapat posisi yang paling efektif. Perhitungan beban gempa mengacu pada pedoman SNI 1726-2012, beban mati berpedoman pada PPURG-1987 dan untuk beban hidup berpedoman pada SNI 1727-2013. Dari hasil perhitungan pada gedung tidak beraturan dengan metode respons spektrum didapat nilai untuk kinerja simpangan maksimum dari 4 model gedung. Simpangan maksimum arah sumbu x pada Gedung tanpa dinding geser sebesar 157,57 mm, pada gedung dengan dinding geser model 1 sebesar 123,41 mm, pada gedung dengan dinding geser model 2 sebesar 125,30 mm, pada gedung dengan dinding geser model 3 sebesar 94,46 mm. Simpangan maksimum arah sumbu y pada gedung tanpa dinding geser sebesar 193,13 mm, pada gedung dengan dinding geser model 1 sebesar 143,79 mm, pada gedung dengan dinding geser model 2 sebesar 141,16 mm, pada gedung dengan dinding geser model 3 sebesar 119,24 mm.  Dari hasil kinerja simpangan maksimum pada Gedung tidak beraturan dengan metode respons spektrum didapat posisi dinding geser yang paling efektif adalah pada Gedung dengan dinding geser model 3 [EN] The Shear walls are reinforced concrete slabs that are installed vertically on the side of the building. Shear wall is one system that serves to maintain the rigidity of the structure, then the position of the shear wall is placed at certain locations, with the use of the shear wall can be used effectively in holding the load it receives. Building structure modeling is done with the help of ETABS software. Earthquake load analysis using the spectrum response method. Structural modeling is made for buildings without the use of shear walls and 3 building models use shear walls in different positions. Determination of the position of the shear wall is done by testing so that the most effective position is obtained. Calculation of earthquake load refers to the guideline of SNI 1726-2012, dead load is guided by PPURG-1987 and for live load is guided by SNI 1727-2013. From the results of calculations on irregular buildings with the spectrum response method obtained values ​​for maximum deviation performance from 4 building models. The maximum deviation of the x-axis direction in Buildings without shear walls is 157.57 mm, in buildings with model 1 shear walls is 123.41 mm, in buildings with model 2 shear walls is 125.30 mm, in buildings with model 3 shear walls is 94.46 mm. The maximum deviation of the y axis direction in buildings without shear walls is 193.13 mm, in buildings with model 1 shear walls of 143.79 mm, in buildings with model 2 shear walls of 141.16 mm, in buildings with shear walls of model 3 of 119.24 mm. From the results of the maximum deviation performance in the irregular building with the spectrum response method obtained the most effective position of the shear wall is the Building with the shear wall model 3

Author(s):  
Trevor Kelly

Although shear walls are a widely used system for providing lateral load resistance, nonlinear analysis procedures for this type of element are much less well developed than those for frame and truss elements. Equivalent flexural models do not include shear deformation and are only suited for symmetric, straight walls. This paper describes the development of an analysis model which includes nonlinear effects for both shear and flexure. The formulation is based on a "macro" modelling approach which is suitable for complete building models in a design office environment. An analysis methodology is developed using engineering mechanics and experimental results and implemented in an existing nonlinear analysis computer program. A model is developed and validated against test results of solid walls and walls with openings. This shows that the model can capture the general characteristics of hysteretic response and the maximum strength of the wall. Results can be evaluated using acceptance criteria derived from published guidelines. An example shear wall building is then evaluated using both the nonlinear static and the nonlinear dynamic procedures. The procedure is shown to be a practical method for implementing performance based design procedures for shear wall buildings.


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


Author(s):  
Gajagantarao Sai Kumar ◽  
Purushotham Rao ◽  
Partheepan Ganesan

Multi-storey buildings tend to get damaged mainly during earthquake. Seismic analysis is a tool for the estimation of structural response in the process of designing earthquake resistant structures and/or retrofitting vulnerable existing structures. The principle purpose of this work is to analyze and design a building with a shear wall and also to find the appropriate position of shear wall that result in maximum resistance towards lateral forces and minimum displacement of the structure. In this study, a G+7 multi-storey building of 15 m ×20 m in plan area has been chosen and modelled using ETABS. The developed model was validated by solving manually and the results were validated in ETABS. Thereafter, 4 different new plans were modelled in ETABS located in the same earthquake zone area. These plans have shear wall concepts are implemented on the building at four different locations. Seismic, vibration and response spectrum analysis were performed on these structures. Salient parameters such as storey stiffness, storey displacement and storey drift were computed using the ETABS model. These were compared with that of the frame having no shear walls. By comparing the results obtained at different shear wall locations, the best plan with the shear wall having minimum lateral storey displacement and maximum stiffness is suggested for this location.


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.


2021 ◽  
Vol 933 (1) ◽  
pp. 012008
Author(s):  
A H Prathama ◽  
M Teguh ◽  
F Saleh

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.


In a developing country like India urbanization and industrialization has accelerated real estate development which leds to scarcity of land. This started the construction of multistorey buildings on sloping ground. Buildings constructed on sloping ground are very irregular and unsymmetrical in vertical and horizontal plane as compared to the buildings on level ground. Also, these buildings on sloping ground require great attention for seismic analysis. The present work studies the behavior of flat slab buildings on sloping ground. For this, G+8 storey 36 different building models with square plan area on sloping ground are considered. The total plan area and mass of the building is kept constant for all models. The sloping angles 0°, 16°, 21° are considered for square plan. The corner and core columns of some models are replaced with shear wall by keeping the mass constant. The response spectrum analysis of all models is carried out using software Etabs17. The study concludes that flat slab building with shear wall at outer periphery of building is preferable than the discontinuous shear wall at core of the building.


Author(s):  
Varun Mahajan

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.


Author(s):  
Asrarul Haq

Abstract: There are several natural calamities, including flooding. worst natural disaster – quake, drought, tornado, hurricanes, and earthquake are the most devastating. Since it leaves a trail of injuries and financial losses fear-inducing behaviors. Implementation is necessary When it comes to earthquake codes in building design, earthquakes are like a wake a wake-up call is made. Urban areas in India are seeing a growth in the popularity of medium-rise as well as high rise R.C.-framed apartment complexes with storey counts ranging from 8 to 10 and even greater than 20. R.C. framed buildings of these heights are equipped with shear walls to resist lateral loads. Thus, it's important to understand how they affect storey drift and stiffness, as well as shear and moments, as well as stress within the shear walls. In order to determine the strength of the building's shear wall, a three-dimensional analysis is performed by Response spectrum. In this study we will be using a shear wall on one structure and friction dampers on another, we will create and analyses a 30-story high-rise structure and compare the results based on the parameters listed above, by using E-tabs software. Keywords: E-tabs, Response spectrum, Friction damper, Shear wall, Earthquake


Author(s):  
Kesava Rao B, Et. al.

In recent years, the construction of skyscrapers has been on the rise to overcome the shortage of land. These buildings are subject to an external lateral force, such as an earthquake and wind pressure. Pushover analysis (POA) has been broadly used in predicting the earthquake response of structures, and shear walls have been shown to be lateral drag elements. Therefore, in the present work, the effect of placing a shear wall on the periphery symmetrically, the periphery asymmetrically and in the center of the building is performed using the ETABS software. Using the response spectrum methodand thetime history method, a dynamic analysis is performed. Responses such as floor shear, floor displacement, and lateral floor shifts due to seismic forces are evaluated for various locations of the shear wall. According to the results and analysis, the shear wall on the symmetrical periphery of the structure is reducing the displacement and deviation of the floor compared to other cases.


A Shear Wall Is An Upright Part Of A Seismic Strength Resisting System That Is Planned To Defend Against In-Plane Adjacent Forces, Characteristically Wind And Seismic Loads. In Many Ruled Buildings, Global Building Code And Intercontinental Residential Code Manages The Design Of Shear Walls. The Loads Of The Shear Walls Resists Loads Which Is Equal To The Plane Of The Walls. Collectors As Well Known As Drag Associates, Handover The Diaphragm Shear To Shear Walls And Other Vertical Features Of The Seismic Force Resisting Arrangement. In This Study, We Have Selected” Optimization Of The Location Shear Wall In A Multistory Building” Analysis Is Done On The Multistory Building. The Model Of Shear All N Building Is Design In The Staad Pro V8i (Series 4) Designing & Analysis Software. Then Giving It The Constrains Which Are Act On The Acting Earthquake Load And Wind Loads On Building Made Nodes Weak To Strengthen That Node We Provide The Shear Wall. After Adding Of Shear Wall On Building Into Model & Analysis It On Staad Pro In Std Format. After The Analysis Of The Location Of Shear Wall On Building It Analyzed That The Shear Wall Location In Multistory Building Providing The Strength To Weak Nodes Of Building And Helps The Building To Resist The Lateral Loads, Wind Loads And Earthquake Load Acting On Building.


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