Progressive collapse fragility models of European reinforced concrete framed buildings based on pushdown analysis

2017 ◽  
Vol 152 ◽  
pp. 579-596 ◽  
Author(s):  
Emanuele Brunesi ◽  
Fulvio Parisi
Keyword(s):  
Reinforced Concrete ◽  
Progressive Collapse ◽  
Pushdown Analysis

Resistance of Reinforced Concrete Frames with Masonry Infill Walls to In-Plane Vertical Loading

2016 ◽  
Vol 711 ◽  
pp. 982-988
Author(s):  
Alex Brodsky ◽  
David Z. Yankelevsky
Keyword(s):  
Reinforced Concrete ◽  
Failure Modes ◽  
Progressive Collapse ◽  
Lateral Loading ◽  
Masonry Walls ◽  
Reinforced Concrete Frame ◽  
Masonry Infill ◽  
Concrete Frame ◽  
Vertical Loading ◽  
Infill Masonry

Numerous studies have been conducted on the in plane behavior of masonry infill walls to lateral loading simulating earthquake action on buildings. The present study is focused on a problem that has almost not been studied regarding the vertical (opposed to lateral) in-plane action on these walls. This may be of concern when a supporting column of a multi-storey reinforced concrete frame with infill masonry walls undergoes a severe damage due to an extreme loading such as a strong earthquake, car impact or military or terror action in proximity to the column. The loss of the supporting column may cause a fully or partly progressive collapse to a bare reinforced concrete frame, without infill masonry walls. The presence of the infill masonry walls may restrain the process and prevent the development of a progressive collapse. The aim of the present study is to test the in-plane composite action of Reinforced Concrete (RC) frames with infill masonry walls under vertical loading through laboratory experiments and evaluate the contributions of infill masonry walls, in an attempt to examine the infill masonry wall added resistance to the bare frame under these circumstances. Preliminary results of laboratory tests that have been conducted on reinforced concrete infilled frames without a support at their end, under monotonic vertical loading along that column axis will be presented. The observed damages and failure modes under vertical loading are clearly different from the already known failure modes observed in the case of lateral loading.

Performance of slabs in reinforced concrete structures to resist progressive collapse

Structures ◽  
2021 ◽  
Vol 33 ◽  
pp. 4843-4856
Author(s):  
Bo Pang ◽  
Feiliang Wang ◽  
Jian Yang ◽  
Sandy Nyunn ◽  
Iftikhar Azim
Keyword(s):  
Reinforced Concrete ◽  
Progressive Collapse ◽  
Concrete Structures ◽  
Reinforced Concrete Structures

Progressive collapse resisting capacity of reinforced concrete load bearing wall structures

2015 ◽  
Vol 22 (7) ◽  
pp. 2730-2738
Author(s):  
Alireza Rahai ◽  
Alireza Shahin ◽  
Farzad Hatami
Keyword(s):  
Reinforced Concrete ◽  
Progressive Collapse ◽  
Load Bearing ◽  
Wall Structures

Computational simulation of progressive collapse of reinforced concrete rigid frame with reinforcement contact model

2016 ◽  
Vol 19 (6) ◽  
pp. 982-994 ◽  
Author(s):  
Han-Soo Kim ◽  
Jae-Gyun Ahn ◽  
Hyo-Seong Ahn
Keyword(s):  
Reinforced Concrete ◽  
Progressive Collapse ◽  
Computational Simulation ◽  
Contact Model ◽  
Rigid Frame

Progressive collapse resistance of exterior reinforced concrete frames and simplified method for catenary action

2021 ◽  
Vol 249 ◽  
pp. 113316
Author(s):  
Xu Long ◽  
Shan Wang ◽  
Xian-Jun Huang ◽  
Chao Li ◽  
Shao-Bo Kang
Keyword(s):  
Reinforced Concrete ◽  
Progressive Collapse ◽  
Concrete Frames ◽  
Reinforced Concrete Frames ◽  
Catenary Action ◽  
Collapse Resistance ◽  
Simplified Method

Examining progressive collapse robustness of a high-rise reinforced concrete building

2021 ◽  
Vol 248 ◽  
pp. 113274
Author(s):  
Chen Fang ◽  
Daniel G. Linzell
Keyword(s):  
Reinforced Concrete ◽  
Progressive Collapse ◽  
Reinforced Concrete Building ◽  
High Rise ◽  
Concrete Building

Blast Vulnerability Assessment of Road Tunnels with Reinforced Concrete Liners

2018 ◽  
Vol 2672 (41) ◽  
pp. 156-164 ◽  
Author(s):  
Fengtao Bai ◽  
Qi Guo ◽  
Kyle Root ◽  
Clay Naito ◽  
Spencer Quiel
Keyword(s):  
Reinforced Concrete ◽  
Numerical Models ◽  
Progressive Collapse ◽  
Transportation Network ◽  
Computational Effort ◽  
Public Access ◽  
Tunnel Current ◽  
Circular Tunnel ◽  
Inflection Points ◽  
Road Tunnels

Tunnels are a critical component of our transportation infrastructure, and unexpected damage to a tunnel can significantly and adversely impact the functionality of a transportation network. Tunnel systems are vulnerable to potential threats of intentional and accidental blast events because of their relatively unrestricted public access. These events can lead to spalling and breach of the tunnel liner which, depending on the surrounding media, can result in local damage and progressive collapse of the tunnel. Current approaches for evaluating blast-induced damage to a tunnel liner either require significant computational effort or oversimplification such that accurate spatial distributions of damage cannot be obtained. This study presents an effective approach to predict and map the damage to a reinforced concrete liner of a roadway tunnel from various explosive threat sizes and tunnel geometries. A literature review of existing studies is conducted, and potential scenarios of blast events are examined with varying charge position and size. Rectangular, horseshoe, and circular tunnel geometries, each with the same traffic throughput, are evaluated. An efficient analytical approach to determine the spatial distribution of blast-induced spall and breach damage is presented and shows good agreement with numerical models analyzed in LS-DYNA. The proposed approach is then used to examine the relationship between increasing blast hazard intensity and the extent of spall and breach damage. Inflection points in this relationship can be used to identify hazard levels at which a progressive collapse evaluation would be warranted.

scholarly journals Strength criterion for a plane stress reinforced concrete element under a special action

Vestnik MGSU ◽  
2020 ◽  
pp. 1513-1522
Author(s):  
Natalia V. Fedorova ◽  
Vu Ngoc Tuyen ◽  
Igor A. Yakovenko
Keyword(s):  
Reinforced Concrete ◽  
Progressive Collapse ◽  
Concrete Strength ◽  
Limit State ◽  
Strength Criterion ◽  
Structural Systems ◽  
Variable Loading ◽  
Concrete Element ◽  
Theory Of Plasticity ◽  
Concrete Elements

Introduction. Problem solving focused on the protection of buildings and structures from progressive collapse and minimization of resources, needed for this purpose, is becoming increasingly important. In many countries, including Russia, this type of protection is incorporated into national regulatory documents, and, therefore, any research, aimed at developing effective ways to protect structural systems from progressive collapse under special actions, is particularly relevant. In this regard, the present article aims to formulate effective strength criteria for such anisotropic materials as reinforced concrete to analyze plane stressed reinforced concrete structures exposed to sudden structural transformations caused by the removal of one of bearing elements. Materials and methods. To solve this problem, a variant of the generalized theory of plasticity of concrete and reinforced concrete, developed by G.A. Geniev, is proposed for application to the case of variable loading of a plane stressed reinforced concrete element. The acceptability of generalization of the strength criterion, pursuant to the theory of plasticity of concrete and reinforced concrete under static loading, and the applicability of this criterion to variable static-dynamic loading of reinforced concrete are used as the main hypothesis. An algorithm of an approximate method is presented as a solution to this problem; it allows to analyze the considered stress-strain state of plane stressed reinforced concrete elements. Results. The numerical analysis of the obtained solution, compared with the results of the experimental studies, was used to evaluate the designed strength criterion for reinforced concrete elements located in the area where the column is connected to the girder of a monolithic reinforced concrete frame in case of a sudden restructuring of a structural system. It is found out that the qualitative nature of the destruction pattern of the area under research, obtained in experiments, corresponds to the destruction pattern, identified by virtue of the analysis performed using the proposed criterion. Conclusions. The variant of the reinforced concrete strength criterion designated for the variable loading of a plane stressed reinforced concrete element and an algorithm for its implementation, based on the theory of plasticity of concrete and reinforced concrete developed by G.A. Geniev, is applicable to the analysis of a special limit state of reinforced concrete elements of structural systems of frames of buildings and structures.

Sign in / Sign up

Export Citation Format

Share Document