scholarly journals Seismic analysis of structural building with reinforced concrete shear walls according to the European Standards

2014 ◽  
Author(s):  
Armend Mujaj ◽  
Florim Grajçevci ◽  
Driton R. Kryeziu
Keyword(s):  
Reinforced Concrete ◽  
Seismic Analysis ◽  
Shear Walls ◽  
European Standards

Seismic Analysis of Confined Masonry Shear Walls Using the Wide Column Model

2016 ◽  
Vol 857 ◽  
pp. 212-218
Author(s):  
Kiran Rangwani ◽  
Svetlana Brzev
Keyword(s):  
Reinforced Concrete ◽  
Latin American ◽  
Seismic Analysis ◽  
Shear Walls ◽  
Computational Effort ◽  
Wall Structure ◽  
Confined Masonry ◽  
Column Model ◽  
Wall Stiffness ◽  
Lateral Displacements

Confined Masonry (CM) structural system consists of masonry walls enclosed by reinforced concrete (RC) confining elements (tie-columns and tie-beams) and is usually supported by reinforced concrete floors and roof. This technology has been widely used for construction of low-and medium-rise buildings in Latin America, Europe, South Asia, and Middle East, and it has a proven record of good performance in damaging earthquakes. CM construction is not currently practiced in India and is not addressed by Indian design codes. Seismic analysis of CM wall panels can be performed using Wide Column Model (WCM), also known as Equivalent Frame Model. WCM is a macro model where a wall structure and the supporting floors and roof are idealized as a bare frame. CM walls can be modelled as wide columns with transformed section properties accounting for composite action of masonry and RC tie-columns. Beams in these bare frames have rigid segments simulating the effect of wall stiffness, and flexible segments that simulate the effect of floor and roof slabs. WCM has been recognized as a viable model for seismic analysis of CM buildings in Latin American countries, however this model is not well known in India. The results presented in this paper are based on linear elastic analyses of typical multi-storey CM solid walls and walls with openings. The output parameters include shear forces, bending moments, stiffness, and lateral displacements. A comparison of the results obtained using the WCM and the Finite Element Method (FEM) has been presented. WCM can be useful for seismic analysis of CM buildings since it does not require significant computational effort and can be applied using a variety of software packages.

scholarly journals Strengthening Methods of the Existing Reinforced Concrete School Buildings in Medina, Saudi Arabia

2019 ◽  
pp. 1-14
Author(s):  
Mohamed Laissy ◽  
Mohammed Ismaeila
Keyword(s):  
Saudi Arabia ◽  
Reinforced Concrete ◽  
Seismic Performance ◽  
Seismic Vulnerability ◽  
Seismic Analysis ◽  
Shear Walls ◽  
School Buildings ◽  
Analysis Method ◽  
Analysis And Design ◽  
Current Design

Nowadays, evaluation of the seismic performance of existing buildings has received great attention. This paper was carried out to study the effect of strengthening the existing reinforced concrete (RC) school buildings in Medina, Saudi Arabia through assessing the seismic performance and retrofitting where seismic analysis and design were done using equivalent static analysis method according to Saudi Building Code (SBC 301) and SAP2000 software. A Typical five-story RC school building designed according to the SBC301 has been investigated in a comparative study to determine the suitable strengthening methods such as RC shear walls and steel X-bracing methods. The results revealed that the current design of RC school buildings located in Medina was unsafe, inadequate, and unsatisfied to mitigate seismic loads. Moreover, adding steel X-bracing and RC shear walls represent a suitable strategy to reduce their seismic vulnerability.

SEISMIC ANALYSIS OF MULTISTOREY REINFORCED CONCRETE STRUCTURES

2019 ◽  
Vol 9 (1) ◽  
pp. 61
Author(s):  
SINGH RAVIKANT ◽  
KUMAR SINGH VINAY ◽  
YADAV MAHESH ◽  
◽  
◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Seismic Analysis ◽  
Concrete Structures ◽  
Reinforced Concrete Structures

A SIMPLIFIED ANALYTICAL PROCEDURE FOR SEISMIC ANALYSIS OF TIMBER LIGHT-FRAME SHEAR WALLS

2019 ◽  
Vol 3 (Special Issue on First SACEE'19) ◽  
pp. 173-180
Author(s):  
Giorgia Di Gangi ◽  
Giorgio Monti ◽  
Giuseppe Quaranta ◽  
Marco Vailati ◽  
Cristoforo Demartino
Keyword(s):  
Analytical Procedure ◽  
Seismic Analysis ◽  
Shear Walls ◽  
Element Model ◽  
Sensitivity Analyses ◽  
Width Ratio ◽  
Damping Factor ◽  
Equivalent Viscous Damping ◽  
Design Variables ◽  
Depth Analysis

The seismic performance of timber light-frame shear walls is investigated in this paper with a focus on energy dissipation and ductility ensured by sheathing-to-framing connections. An original parametric finite element model has been developed in order to perform sensitivity analyses. The model considers the design variables affecting the racking load-carrying capacity of the wall. These variables include aspect ratio (height-to-width ratio), fastener spacing, number of vertical studs and framing elements cross-section size. A failure criterion has been defined based on the observation of both the global behaviour of the wall and local behaviour of fasteners in order to identify the ultimate displacement of the wall. The equivalent viscous damping has been numerically assessed by estimating the damping factor which is in use in the capacity spectrum method. Finally, an in-depth analysis of the results obtained from the sensitivity analyses led to the development of a simplified analytical procedure which is able to predict the capacity curve of a timber light-frame shear wall.

Analytical study of tessellated structural-architectural reinforced concrete shear walls

2021 ◽  
Vol 244 ◽  
pp. 112768
Author(s):  
Mohammad Syed ◽  
Mohammad Moeini ◽  
Pinar Okumus ◽  
Negar Elhami-Khorasani ◽  
Brandon E. Ross ◽  
...  
Keyword(s):  
Reinforced Concrete ◽  
Analytical Study ◽  
Shear Walls

Experimental Study of Shear-Critical Reinforced-Concrete Shear Walls under Tension-Bending Shear-Combined Cyclic Load

2020 ◽  
Vol 146 (5) ◽  
pp. 04020047
Author(s):  
Xin Nie ◽  
Jia-Ji Wang ◽  
Mu-Xuan Tao ◽  
Jian-Sheng Fan ◽  
Y. L. Mo ◽  
...  
Keyword(s):  
Experimental Study ◽  
Reinforced Concrete ◽  
Cyclic Load ◽  
Shear Walls

Implementing the performance-based seismic design for new reinforced concrete structures: Comparison among ASCE/SEI 41, TBI, and LATBSDC

2021 ◽  
pp. 875529302098196
Author(s):  
Siamak Sattar ◽  
Anne Hulsey ◽  
Garrett Hagen ◽  
Farzad Naeim ◽  
Steven McCabe
Keyword(s):  
Reinforced Concrete ◽  
Los Angeles ◽  
Seismic Design ◽  
Common Ground ◽  
Seismic Analysis ◽  
Tall Buildings ◽  
The United States ◽  
Analysis And Design ◽  
Performance Based Seismic Design ◽  
New Buildings

Performance-based seismic design (PBSD) has been recognized as a framework for designing new buildings in the United States in recent years. Various guidelines and standards have been developed to codify and document the implementation of PBSD, including “ Seismic Evaluation and Retrofit of Existing Buildings” (ASCE 41-17), the Tall Buildings Initiative’s Guidelines for Performance-Based Seismic Design of Tall Buildings (TBI Guidelines), and the Los Angeles Tall Buildings Structural Design Council’s An Alternative Procedure for Seismic Analysis and Design of Tall Buildings Located in the Los Angeles Region (LATBSDC Procedure). The main goal of these documents is to regularize the implementation of PBSD for practicing engineers. These documents were developed independently with experts from varying backgrounds and organizations and consequently have differences in several degrees from basic intent to the details of the implementation. As the main objective of PBSD is to ensure a specified building performance, these documents would be expected to provide similar recommendations for achieving a given performance objective for new buildings. This article provides a detailed comparison among each document’s implementation of PBSD for reinforced concrete buildings, with the goal of highlighting the differences among these documents and identifying provisions in which the designed building may achieve varied performance depending on the chosen standard/guideline. This comparison can help committees developing these documents to be aware of their differences, investigate the sources of their divergence, and bring these documents closer to common ground in future cycles.

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