Comparative Analysis of Progressive Collapse of Regular and Irregular RC Building

2018 ◽  
pp. 451-462
Author(s):  
Moinul Haq ◽  
Ashish Agarwal
Keyword(s):  
Comparative Analysis ◽  
Progressive Collapse ◽  
Rc Building

Progressive Collapse Analysis of a Medium-Rise Circular RC Building Against Blast Loads

2016 ◽  
Author(s):  
Yousef Al-Salloum ◽  
Tarek Almusallam ◽  
Tuan Ngo ◽  
Hussein Elsanadedy ◽  
Husain Abbas ◽  
...  
Keyword(s):  
Progressive Collapse ◽  
Model Analysis ◽  
Element Formulation ◽  
Shell Elements ◽  
Critical Elements ◽  
Beam Elements ◽  
Floor Slabs ◽  
Rc Building ◽  
Progressive Collapse Analysis ◽  
Column Bases

This paper investigates the vulnerability of a typical medium-rise circular RC building against progressive collapse as a result of blast generated waves. The building is an eight storied (including one story basement) commercial complex. The likely blast threat scenario was identified by qualitatively assessing the vulnerability of the critical elements of the structure. LS-DYNA was used for the finite element modelling of the structure. The study presents local model analysis of one of its circular columns for which fluid-structure interaction through Alternate Lagrangian Eulerian (ALE) element formulation has been employed. The concrete volume in the columns was modeled using 8-node reduced integration solid hexahedron elements. The global model analysis was carried out to examine the overall response of the structure due to the failure of one of the critical columns. The building was modeled using beam and shell elements. The 2-node axial beam elements with tension, compression, torsion, and bending capabilities were employed to represent the RC beams and columns, whereas the four node quadrilateral and three node triangular shell elements were used to represent the core wall, floor slabs, retaining walls and facade. The column bases of the building were fixed at the level of raft slab. The results of the study are proposed to be used to control or prevent progressive collapse of RC buildings.

scholarly journals Comparative Analysis of RC Building Using Dampers and with Shear Wall under Wind Load: A Review

2021 ◽  
Vol 9 (10) ◽  
pp. 490-495
Author(s):  
Bashar Iqbal
Keyword(s):  
Comparative Analysis ◽  
Tall Buildings ◽  
Shear Wall ◽  
Wind Load ◽  
Lateral Loads ◽  
Human Beings ◽  
Friction Damper ◽  
Wind Analysis ◽  
Highly Sensitive ◽  
Rc Building

Abstract: The requirement of tall building in recent years increase the construction to satisfy the need of human beings. Very tall buildings located in high velocity wind area are highly sensitive therefore calculation and analysis of wind load is very impotent. Due to change in climatic condition the basic wind speed are increases. The main aim of this paper is to introducing the different techniques which is used to reduce the effect of wind load or lateral loads. Keywords: wind analysis, comparative analysis, TMD (tuned mass damper),friction damper, shear wall

Nonlinear Static Analysis for Progressive Collapse Potential of RC Building

2011 ◽  
Vol 94-96 ◽  
pp. 146-152 ◽  
Author(s):  
Tie Cheng Wang ◽  
Zhi Ping Li
Keyword(s):  
Static Analysis ◽  
Progressive Failure ◽  
Progressive Collapse ◽  
Frame Structure ◽  
Nonlinear Static Analysis ◽  
Collapse Potential ◽  
Concrete Frame ◽  
Rc Building ◽  
Edge Span ◽  
Nonlinear Static

In this study, the progressive collapse potential of a 10-storey concrete frame structure was investigated using nonlinear static analysis. 15 different cases were considered and their performances were compared with each other. From the nonlinear static analysis results, most of longitudinal beams in upper floors and slabs above the failure column would collapse as the results of removing an exterior column, no beams and slabs would collapse when an interior column at ground floor was removed, and only the short-span beams in superstructure would collapse when an interior column in upper floors was removed. Tie force reinforcement along floors and beams of edge span can be used to avoid the progressive failure of floors, after failure of particular column.

Fire and Explosion Protection of High-Rise Buildings by Means of Plaster Compositions

2016 ◽  
Vol 871 ◽  
pp. 138-145 ◽  
Author(s):  
Marina Gravit ◽  
Egor Mikhailov ◽  
Stepan Svintsov ◽  
Aleksey Kolobzarov ◽  
Ivanna Popovych
Keyword(s):  
Comparative Analysis ◽  
Chemical Composition ◽  
Fire Resistance ◽  
Fire Protection ◽  
Progressive Collapse ◽  
High Rise ◽  
The World ◽  
Explosion Protection ◽  
Fire And Explosion ◽  
Resistance Durability

The article describes the aspects of fire protection of high-rise buildings. Various methods of protection of unique buildings from fire and explosion in the world practice were considered. For example, using the innovative fire-resistant materials on load-bearing structures, their characteristics and rationing, progressive collapse. The comparative analysis of various types of fire-resistant plaster by such parameters as the chemical composition, fire resistance, durability, density, thickness of the layer was made. Perspectives of development of fireproof plaster compositions were projected.

scholarly journals A Parametric Computational Study of RC Building Structures under Corner-Column Removal Situations

2020 ◽  
Vol 10 (24) ◽  
pp. 8911
Author(s):  
Manuel Buitrago ◽  
Elisa Bertolesi ◽  
Julio Garzón-Roca ◽  
Juan Sagaseta ◽  
José M. Adam
Keyword(s):  
Structural Engineering ◽  
Computational Study ◽  
Progressive Collapse ◽  
Past Research ◽  
Building Structures ◽  
Future Design ◽  
Column Removal ◽  
Rc Building ◽  
Dynamic Amplification ◽  
Full Scale Tests

Building progressive collapse is currently one of the hottest topics in the structural engineering field. Most of the research carried out to date on this topic has been focused on the structural analysis of the failure of one or more columns in a building to determine the Alternative Load Paths (ALPs) the structure can activate. Past research was mainly focused on extreme situations with high loads and large structural deformations and, to a lesser extent, research looked at lower loads used in design accidental situations, which requires a different set of assumptions in the analysis. This paper describes a study aimed at analysing accidental design situations in corner-column removal scenarios in reinforced concrete (RC) building structures and evaluating the available real ALPs in order to establish practical recommendations for design situations that could be taken into account in future design codes. A wide parametric computational analysis was carried out with advanced Finite Element (FE) models which the authors validated by full-scale tests on a purpose-built building structure. The findings allowed us to: (i) establish design recommendations, (ii) demonstrate the importance of Vierendeel action and (iii) recommend Dynamic Amplification Factors (DAFs) for design situations.

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