Experimental and analytical progressive collapse assessment of a steel frame building

2013 ◽  
Vol 56 ◽  
pp. 664-672 ◽  
Author(s):  
Brian I. Song ◽  
Halil Sezen
Keyword(s):  
Progressive Collapse ◽  
Steel Frame ◽  
Frame Building ◽  
Collapse Assessment

Linear and non-linear analysis on two-dimensional steel frame under different temperatures

2019 ◽  
Vol 10 (1) ◽  
pp. 48-55
Author(s):  
Parthasarathi N. ◽  
Satyanarayanan K.S. ◽  
Prakash M. ◽  
Thamilarasu V.
Keyword(s):  
High Temperatures ◽  
Progressive Collapse ◽  
Transient State ◽  
Steel Frame ◽  
Frame Structure ◽  
Two Dimensional ◽  
Content Type ◽  
Frame Building ◽  
Different Temperatures ◽  
Steel Frame Structure

Purpose Progressive collapse because of high temperatures arising from an explosion, vehicle impact or fire is an important issue for structural failure in high-rise buildings. Design/methodology/approach The present study, using ABAQUS software for the analysis, investigated the progressive collapse of a two-dimensional, three-bay, four-storey steel frame structure from high-temperature stresses. Findings After structure reaches the temperature results like displacement, stress axial load and shear force are discussed. Research limitations/implications Different temperatures were applied to the columns at different heights of a structure framed with various materials. Progressive collapse load combinations were also applied as per general service administration guidelines. Originality/value This study covered both steady-state and transient-state conditions of a multistorey-frame building subjected to a rise in temperature in the corner columns and intermediate columns. The columns in the framed structure were subjected to high temperatures at different heights, and the resulting displacements, stresses and axial loads were obtained, analysed and discussed.

scholarly journals Progressive Collapse Assessment: A review of the current energy-based Alternate Load Path (ALP) method

2019 ◽  
Vol 258 ◽  
pp. 02012 ◽  
Author(s):  
Nur Ezzaryn Asnawi Subki ◽  
Hazrina Mansor ◽  
Yazmin Sahol Hamid ◽  
Gerard Parke
Keyword(s):  
Dynamic Analysis ◽  
Static Analysis ◽  
Progressive Collapse ◽  
Structural Response ◽  
Steel Frame ◽  
Collapse Mechanism ◽  
Load Path ◽  
Acceptance Criterion ◽  
Current Energy ◽  
Collapse Assessment

The Alternate Load Path (ALP) is a useful method that has generated a considerable recent research interest for the assessment of progressive collapse. The outcome of the ALP analysis can be assessed either using the force-based approach or the energy-based approach. The Unified Facilities Criteria (UFC- 4- 023-03) of progressive collapse guideline - have outlined that the force-based approach can either be analysed using static or dynamic analysis. The force-based approach using static analysis is preferable as it does not require a high level of skill and experience to operate the software plus no effort is required in scrutinising the validity of the analysis results output. However, utilising the static approach will eliminate the inertial effect in capturing the actual dynamic response of the collapsed structure. In recent years, the development of the energy-based progressive collapse assessment is attracting widespread interest from researchers in the field; as the approach can produce a similar structural response with the force-based dynamic analysis by only using static analysis. Most of the current energy-based progressive collapse assessments are developed following the requirements which are given in the progressive collapse guidelines provided by the Unified Facilities Criteria. However, little attention is given to the development of the energy-based approach using the Eurocode standards as a base guideline. This article highlights the merits of utilising the energy-based approach against the force-based approach for a collapsed structure and explains the collapse mechanism of a steel frame in the perspective of the energy concept. The state of the art of energy-based progressive collapse assessment for a structural steel frame is reviewed. The comprehensive review will include insights on the development of the energy-based method, assumptions, limitations, acceptance criterion and its applicability with the European standards. Finally, potential research gaps are discussed herein.

Progressive collapse testing and analysis of a steel frame building

2014 ◽  
Vol 94 ◽  
pp. 76-83 ◽  
Author(s):  
Brian I. Song ◽  
Kevin A. Giriunas ◽  
Halil Sezen
Keyword(s):  
Progressive Collapse ◽  
Steel Frame ◽  
Frame Building

Numerical Analysis of a Steel Frame Building with Soft-Storey Failure under Ground Motion Excitation

2012 ◽  
Vol 525-526 ◽  
pp. 481-484
Author(s):  
Wojciech Migda ◽  
Robert Jankowski
Keyword(s):  
Numerical Analysis ◽  
Ground Motion ◽  
Impact Load ◽  
Progressive Collapse ◽  
Computer Software ◽  
Steel Frame ◽  
Soft Storey ◽  
Critical Moment ◽  
Frame Building ◽  
The Impact

t has been observed during earthquakes that the soft-storey failure of an upper floor of a building results in large impact load acting on structural members of the lower storeys. It may further lead to progressive collapse of the whole structure substantially intensifying human losses and material damages. The aim of this paper is to show the results of a numerical analysis focused on the behaviour of multi-storey steel frame building that suffers from a soft-storey failure under ground motion excitation. A numerical model of the structure was created in FEM computer software and was exposed to an impact that would have been generated after a soft-storey failure due to falling of the upper floors. During the analysis, the whole structure was exposed to ground motion excitation and different moments have been chosen for the impact so as to estimate the most critical moment for the structure. The results of the study show that not only the value of the impact force is crucial but also the moment when the impact occurs. This is due to the fact that horizontal deflection of the supporting members (steel columns) varies during the time of the excitation. It has been observed that the most critical moment for the building for being subjected to a vertical impact is when the horizontal deflection is close to its peak.

Seismic and Robustness Design of Steel Frame Buildings

2018 ◽  
Vol 763 ◽  
pp. 116-123 ◽  
Author(s):  
Massimiliano Ferraioli ◽  
Angelo Lavino ◽  
Alberto Mandara ◽  
Marianna Donciglio ◽  
Antonio Formisano
Keyword(s):  
Progressive Collapse ◽  
Three Dimensional ◽  
Design Procedure ◽  
Steel Frame ◽  
Fundamental Parameters ◽  
Frame Buildings ◽  
Steel Frame Buildings ◽  
European Standards ◽  
Three Dimensional Models ◽  
Column Removal Scenario

In this paper, a design procedure that combines both progressive collapse design under column removal scenario and capacity design to produce a hierarchy of design strengths is presented. The procedure develops in the context of the European Standards, using the classification of European steel sections and considering the seismic design features. Three-dimensional models of typical multi-storey steel frame buildings are employed in numerical analysis. The design for progressive collapse is carried out with three types of analysis, namely linear static, nonlinear static and nonlinear dynamic. Since the behaviour following sudden column loss is likely to be inelastic and possibly implicate catenary effects, both geometric and material nonlinearities are considered. The influence of the fundamental parameters involved in seismic and robustness design is finally investigated.

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