Rehabilitation of a high-rise coupled shear wall system in a 56-storey residential reinforced concrete building (Tehran Tower), based on nonlinear dynamic time-history analyses

2010 ◽  
Vol 20 (8) ◽  
pp. 1035-1047 ◽  
Author(s):  
Omid Esmaili ◽  
Siamak Epackachi ◽  
Rasoul Mirghaderi ◽  
Ali Asghar Taheri Behbahani ◽  
Shahram Vahdani
Keyword(s):  
Reinforced Concrete ◽  
Nonlinear Dynamic ◽  
Time History ◽  
Shear Wall ◽  
Reinforced Concrete Building ◽  
High Rise ◽  
Coupled Shear Wall ◽  
Concrete Building ◽  
Dynamic Time ◽  
Wall System

Seismic evaluation of a 56-storey residential reinforced concrete high-rise building based on nonlinear dynamic time-history analyses

2010 ◽  
Vol 21 (4) ◽  
pp. 233-248 ◽  
Author(s):  
Siamak Epackachi ◽  
Rasoul Mirghaderi ◽  
Omid Esmaili ◽  
Ali Asghar Taheri Behbahani ◽  
Shahram Vahdani
Keyword(s):  
Reinforced Concrete ◽  
Nonlinear Dynamic ◽  
Time History ◽  
Seismic Evaluation ◽  
High Rise ◽  
High Rise Building ◽  
Dynamic Time

scholarly journals Common irregularities and its effects on reinforced concrete building response

2021 ◽  
Vol 17 (1) ◽  
pp. 63-73
Author(s):  
Krishna Ghimire ◽  
Hemchandra Chaulagain
Keyword(s):  
Reinforced Concrete ◽  
Seismic Vulnerability ◽  
Numerical Models ◽  
Time History ◽  
Functional Requirements ◽  
Finite Element Program ◽  
Reinforced Concrete Building ◽  
Concrete Building ◽  
Element Program ◽  
Dynamic Time

In most of the countries, the irregular building construction is popular for fulfilling both aesthetic and functional requirements. However, the evidence of past earthquakes in Nepal and the globe demonstrated the higher level of seismic vulnerability of the buildings due to irregularities. Considering this fact, the present study highlighted the common irregularities and its effect on reinforced concrete building response. The effect of structural irregularities was studied through numerical analysis. The geometrical, mass and stiffness irregularities were created by removing bays in different floor levels and removing the columns at different sections respectively. In this study, the numerical models were created in finite element program SAP2000. The structural performance was studied using both non-linear static pushover and dynamic time history analysis. The results indicate that the level of irregularities significantly influenced the behavior of structures.

Identification of the dynamic properties of a reinforced concrete coupled shear wall residential high-rise building

2012 ◽  
Vol 39 (6) ◽  
pp. 631-642 ◽  
Author(s):  
Natthapong Areemit ◽  
Michael Montgomery ◽  
Constantin Christopoulos ◽  
Agha Hasan
Keyword(s):  
Reinforced Concrete ◽  
State Of The Art ◽  
Dynamic Properties ◽  
Shear Wall ◽  
Full Scale ◽  
Design Parameters ◽  
High Rise ◽  
Coupled Shear Wall ◽  
Current State

As high-rise buildings increase with height and slenderness, they become increasingly sensitive to dynamic vibrations, and therefore the natural frequency of vibration and damping ratio are very important design parameters, as they directly impact the design wind forces. Recent advances in sensing and computing technology have made it possible to monitor the dynamic behaviour of full-scale structures, which was not possible in the past. Full-scale validation of the dynamic properties is useful for high-rise designers to verify design assumptions, especially since recent measurements have shown that damping decreases as the height of the building increases, and in situ damping measurements have been lower than many currently assumed design values, potentially leading to unconservative designs. A 50-storey residential building in downtown Toronto, with a reinforced concrete coupled shear wall lateral load resisting system with outriggers was monitored using current state-of-the-art sensing technologies and techniques to determine, in situ, the dynamic properties under real wind loads. The in situ measurements were then compared with results obtained using current state-of-the-art computer modelling techniques.

scholarly journals Analytical Investigation on non-linear dynamic analysis of reinforced concrete building subjected to blast loading

2021 ◽  
Vol 850 (1) ◽  
pp. 012012
Author(s):  
R. Prashanthi ◽  
S. Elavenil
Keyword(s):  
Reinforced Concrete ◽  
Time History ◽  
Blast Loading ◽  
Analytical Investigation ◽  
Dynamic Responses ◽  
Blast Load ◽  
Reinforced Concrete Building ◽  
Linear Dynamic ◽  
Concrete Building ◽  
Non Linear

Abstract The blast explosion causes catastrophic failure of structure both externally and internally. In this work the analytical investigation is carried out on the blast performance of the reinforced concrete building frame. Reinforced concrete building connection is vital in the Moment Resistant Frames (MRF) and they play a vital role under constant blast load. It is important to design the building for blast loading since they are subjected to large displacements. The non-linear dynamic behavior of the building by time history analysis method is performed by using SAP2000 finite element stimulation software. Blast load is idealized as the triangular pulse for single degree of freedom system and the effect of the blast load at a different standoff distances on the building element is examined. The analytical method could predict the overall flexural, non-linear shear behavior and ductile response of the building at different modes. The results of the stimulations for various failure conditions such as maximum displacement, maximum base shear and spectral acceleration as per IS 1893-2016 for non-linear dynamic responses are investigated in this study.

scholarly journals High-rise Reinforced-concrete Building Incorporating an Oil Damper in an Outrigger Frame and Its Vibration Analysis

2016 ◽  
Vol 5 (1) ◽  
pp. 43-50 ◽  
Author(s):  
Yukihiro Omika ◽  
Norihide Koshika ◽  
Yukimasa Yamamoto ◽  
Kenichi Kawano ◽  
Kan Shimizu
Keyword(s):  
Reinforced Concrete ◽  
Vibration Analysis ◽  
Reinforced Concrete Building ◽  
High Rise ◽  
Concrete Building
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