Effect of shear wall location in rigid frame on earthquake response of roof structure

2001 ◽  
Vol 11 (6) ◽  
pp. 605-616
Author(s):  
Koichiro Ishikawa ◽  
Yoshizo Kawasaki ◽  
Kengo Tagawa
Keyword(s):  
Shear Wall ◽  
Earthquake Response ◽  
Roof Structure ◽  
Rigid Frame

scholarly journals Effective Positioning of Shear Wall in G+5 Storey Building on Sloping Ground

2019 ◽  
Vol 9 (2) ◽  
pp. 3602-3606 ◽  
Keyword(s):  
Soil Condition ◽  
Shear Wall ◽  
Seismic Zone ◽  
Sloping Ground ◽  
Multistory Buildings ◽  
Frame Building ◽  
Rigid Frame ◽  
Multistory Building ◽  
Lateral Strength ◽  
Sloping Land

Earthquake is a natural calamity. It has been observed that the earthquake has proved to be more fatal in today’s time. The prime reason for this catastrophe is the extermination of the man-made structures during the earthquake, Lack of lateral strength and stability in the manmade structure is the prime reason for their demolition during the earthquake. Mostly man-made structure is multistory buildings for this reason that is necessary for the multistory building to withstand against seismic activities. For the past few decades, some new methods have been adopted to make multistory building laterally strong and stable, a shear wall is one of them which are a structural member which provides lateral stiffness and strength to the structure. The earthquake can be even more lethal on sloping land. This paper studies the influence of shear wall in the multistory building built on sloping ground. For this purpose, four different models have been taken. Modal one is the conventional rigid frame building and the remaining three models are kept with the shear wall. All conditions (ground slope, material, seismic zone, soil condition, etc.) Except for the size of the shear wall are identical. The linear static analysis has been carried out to evaluate the story shear and its reduction as a result in all three cases. The entire analysis is done on software called sap: 2000.

scholarly journals ANALISIS PERIODA BANGUNAN DINDING GESER DENGAN BASE ISOLATOR AKIBAT GAYA GEMPA

Teras Jurnal ◽  
2018 ◽  
Vol 7 (2) ◽  
pp. 263
Author(s):  
Mul Muliadi Adi ◽  
M. Kabir Kabir Ihsan
Keyword(s):  
Seismic Design ◽  
Time History ◽  
Shear Wall ◽  
Braced Frame ◽  
Moment Resisting Frame ◽  
Rigid Frame ◽  
Base Isolator ◽  
Non Linear ◽  
Moment Resisting ◽  
Performance Based Seismic Design

Bangunan yang hancur oleh gempa dapat dicegah dengan memperkuat struktur bangunan terhadap gaya gempa yang bekerja padanya. Perkuatan bangunan dapat dilakukan dengan memperkaku bangunan dalam arah lateral yaitu <em>moment resisting frame</em> (<em>rigid frame</em>), <em>braced frame</em> dan <em>shear wall</em>. Bangunan dinding geser merupakan salah satu jenis <em>bangunan</em> tahan gempa gedung beton bertulang menggunakan sistem rangka struktur yang dikombinasikan. Kinerja gedung akan bertambah dan menjadi optimal jika pola penempatan <em>dinding geser</em> serta metode analisanya tepat. Sistem lainnya dalam mengurangi kerusakan bangunan akibat gempa dengan <em>performance based seismic design</em> yaitu dengan menggunakan <em>base isolator.</em>, yang memanfaatkan teknik analisa non-linear berbasis komputer untuk menganalisa perilaku inelastis struktur dari berbagai macam intensitas gerakan tanah (<em>gempa</em>), sehingga dapat diketahui kinerjanya pada kondisi kritis. Tujuan penelitian ini dilakukan untuk mengetahui perioda dalam penggunaan <em>base isolator </em>dengan yang tanpa menggunakan <em>base isolator,</em> pada bangunan sistem ganda, lantai 10 tingkat, bentuk beraturan pada bangunan dinding geser. Analisis data yang dilakukan dengan menggunakan bantuan <em>software </em>komputer <em>SAP2000</em>. Pembebanan pada gedung didasarkan pada peraturan bangunan gedung beton bertulang dan analisa dinamik <em>Time History Modal Analysi</em>s struktur dalam Tata Cara Perencanaan Ketahanan Gempa Untuk Struktur Bangunan Gedung Dan Non Gedung (SNI 1726:2012). Dari hasil penelitian ini dapat diketahui bahwa penggunaan <em>base isolator</em> memperbesar perioda alami. Nilai perioda pada dinding geser dan dinding geser <em>base isolator</em> besarnya berturut-turut 0.988 detik dan 2.465 detik. Hal ini menyebabkan gaya gempa yang bekerja menjadi lebih kecil.

Effect of shear wall height on earthquake response

2001 ◽  
Vol 23 (4) ◽  
pp. 376-384 ◽  
Author(s):  
Quanfeng Wang ◽  
Lingyun Wang ◽  
Qiangsheng Liu
Keyword(s):  
Shear Wall ◽  
Earthquake Response

Nonlinear Dynamic Analysis Model for RC Shear Wall

2013 ◽  
Vol 275-277 ◽  
pp. 1020-1023
Author(s):  
Pin Le Zhang
Keyword(s):  
Dynamic Analysis ◽  
Nonlinear Dynamic ◽  
Nonlinear Dynamic Analysis ◽  
Shear Wall ◽  
Lateral Load ◽  
Earthquake Response ◽  
Analysis Model ◽  
High Rise ◽  
Rc Shear Wall ◽  
Analysis Models

Shear wall systems are the most commonly used lateral-load resisting systems in high-rise buildings. The building of nonlinear dynamic analysis model is the basis for calculating earthquake response. The work further investigates several nonlinear dynamic analysis models at home and abroad for RC shear wall. Classified and brief comments about the existing drawbacks of these models are conducted. Hysteretic rules, relative parameters and the applicability of these models are also discussed in detail. Lastly, some useful suggestions are proposed for the further research.

scholarly journals Shear Walls Induced RC Structures

2021 ◽  
Vol 12 (2) ◽  
pp. 1827-1834
Author(s):  
Kesava Rao B, Et. al.
Keyword(s):  
Dynamic Analysis ◽  
Response Spectrum ◽  
Pushover Analysis ◽  
Shear Walls ◽  
Shear Wall ◽  
Lateral Force ◽  
Wind Pressure ◽  
Earthquake Response ◽  
Rc Structures ◽  
Seismic Forces

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.

Research on Prediction Method of Steel Frame-Reinforced Concrete Shear Wall Hybrid Structure Earthquake Response Based on Energy Concept

2010 ◽  
Vol 163-167 ◽  
pp. 4442-4448
Author(s):  
Xing Zhu Pei ◽  
Wei Wang
Keyword(s):  
Reinforced Concrete ◽  
Energy Method ◽  
Prediction Method ◽  
Time History ◽  
Shear Wall ◽  
Hybrid Structure ◽  
Steel Frame ◽  
Earthquake Response ◽  
Analysis Method ◽  
History Analysis

The basal theory of energy method is introduced, which makes use of the idea of energy balance to study the earthquake response of structures. Because of the high stiffness and low-cost of the steel frame-reinforced concrete shear wall hybrid structure, it is being widely used. But the study of the earthquake response prediction method of the structure has not been done yet. In this paper, energy method is used to study the earthquake response of the steel frame-reinforced concrete shear wall hybrid structure. A steel frame structure and a steel frame-reinforced concrete shear wall hybrid structure have been designed. The shear wall in steel frame-reinforced concrete shear wall hybrid structure is simplified as a column for easier study. In order to evaluate the results of the energy method, the time history analysis method is also used to study the earthquake response of the two structures. The shear coefficient, maximal interlaminar displacement and damage ratio of the two structures are studied. After comparison, it is found that the results of energy method and the time history analysis method are almost the same. The energy method can be easily used to study the earthquake response of the steel frame-reinforced concrete shear wall hybrid structure.

scholarly journals Analysis of a Frame-Shear Wall Concrete Structure by Using Base Isolation and Evaluation of Structure-Soil Interaction

2017 ◽  
Vol 7 (6) ◽  
pp. 2282-2287
Author(s):  
H. I. Polat
Keyword(s):  
Cross Sections ◽  
Base Isolation ◽  
Shear Wall ◽  
Structure Design ◽  
Mode Shapes ◽  
Earthquake Response ◽  
Response Analysis ◽  
Seismic Load ◽  
Isolation System ◽  
Base Isolation System

A base isolation system is a type of earthquake-resistant structure design approach based on the principle of reducing a structure’s earthquake response rather than increasing the structure’s earthquake resistance capacity. Seismic base isolated structures have the ability to make large displacements relative to the level of insulation elements. This means that a large structure performs very small displacements between floors during an earthquake and exhibits a rigid body behavior. At this point, the earthquake forces acting on the structure decrease along with the floors. In this article a school building composed of frame-shear wall is resolved primarily with the traditional fixed base structure system, mode shapes are found and periods are obtained. For earthquake response analysis, earthquake loads are distributed to the floors using the equivalent seismic load method and structural elements experiencing capacity problems are found. Then, using the earthquake record, larger failure of cross sections and capacity problems are obtained compared to the first method. In the second stage, the same structure is dissolved again by placing the lead core rubber base isolators between the base and the vertical structural members. The periods of structures under earthquake load have increased significantly by utilizing base isolation, as a result of that spectral accelerations decreased. Thus, large decreases in the shear forces acting to the structure are determined and failures of cross sections are removed.

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