Progressive Collapse Resilience of Concrete Structures: Mechanisms, Simulations and Experiments PDF Download
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Author: Kai Qian
Publisher: Springer Nature
ISBN: 9819907721
Category : Science
Languages : en
Pages : 286
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Book Description
The book introduces the comprehensive analysis methodology regarding progressive collapse, and the critical issues may happen in concrete structures. Main topics include: the influential parameters of the development of the main load-resisting mechanisms; the dynamic effects with sudden column removal scenarios; the contribution of non-structural components to improve the resilience of concrete structures; uncertainties in progressive collapse analysis. Based on the empirical research of the author and his team, the book provides valuable knowledge in the field of progressive collapse and bridges the gap between academic research and practice.
Author: Kai Qian
Publisher: Springer Nature
ISBN: 9819907721
Category : Science
Languages : en
Pages : 286
Get Book Here
Book Description
The book introduces the comprehensive analysis methodology regarding progressive collapse, and the critical issues may happen in concrete structures. Main topics include: the influential parameters of the development of the main load-resisting mechanisms; the dynamic effects with sudden column removal scenarios; the contribution of non-structural components to improve the resilience of concrete structures; uncertainties in progressive collapse analysis. Based on the empirical research of the author and his team, the book provides valuable knowledge in the field of progressive collapse and bridges the gap between academic research and practice.
Author: Li Shan
Publisher:
ISBN: 9780355462258
Category :
Languages : en
Pages :
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Book Description
This research effort was motivated by the need for additional insight into the mechanics of progressive collapse of reinforced concrete frame buildings resulting from the sudden loss of one or more columns on the lowest story level. Although several studies have investigated disproportionate collapse both experimentally and numerically, there is still a general lack of information not only on modeling and analyses procedures but also on system characteristics such as building height and initiation and sequence of column loss that impact the ability of RC buildings to resist progressive collapse. Nonlinear simulation models of three, six and ten-story reinforced concrete frame buildings using the software platform LS-DYNA (Hallquist 2007) were developed using a reduced-order modeling scheme: line elements with cross-section discretization were employed for beams and columns whereas layered shell elements with smeared reinforcement were used for slabs, and the effectiveness of the modeling was validated with large-scale experimental data. The simulations examined the influence of story height in resisting progressive collapse and the effect of the sequence of column losses in accelerating progressive collapse. Two specific scenarios were considered: column losses that are initiated with the loss of a corner column and in the middle of the building plan at the lowest level of the building. Finally, a methodology based on energy and deformation measures is developed that provides an indirect assessment of structural robustness and can be used to compare the relative robustness of different buildings. Findings from the study indicate that the loss of a corner column on the lowest floor of a reinforced concrete frame building poses a greater threat to progressive collapse than a column loss in the middle of the building. Taller buildings possess greater resilience to progressive collapse than buildings with fewer stories for the same arrangement of vertical elements in the building plan. The vertical drift angle and the change in the axial stress ratio in a column adjacent to a removed column are found to be effective indicators of structural resilience to progressive collapse. This research also provided a basis for comparing the relative robustness of buildings subjected to column losses on the lowest floor. Consequently, findings from the study provide engineers an insight into improving the robustness of a building to resist progressive collapse.
Author: Yihai Bao
Publisher:
ISBN:
Category :
Languages : en
Pages : 344
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Book Description
Author: K. S. Sreekeshava
Publisher: Springer Nature
ISBN: 9819995027
Category : Electronic books
Languages : en
Pages : 569
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Book Description
Author: Günther Meschke
Publisher: CRC Press
ISBN: 1351726765
Category : Technology & Engineering
Languages : en
Pages : 1034
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Book Description
The EURO-C conference series (Split 1984, Zell am See 1990, Innsbruck 1994, Badgastein 1998, St. Johann im Pongau 2003, Mayrhofen 2006, Schladming 2010, St. Anton am Arlberg 2014, and Bad Hofgastein 2018) brings together researchers and practising engineers concerned with theoretical, algorithmic and validation aspects associated with computational simulations of concrete and concrete structures. Computational Modelling of Concrete Structures reviews and discusses research advancements and the applicability and robustness of methods and models for reliable analysis of complex concrete, reinforced concrete and pre-stressed concrete structures in engineering practice. The contributions cover both computational mechanics and computational modelling aspects of the analysis and design of concrete and concrete structures: Multi-scale cement and concrete research: experiments and modelling Aging concrete: from very early ages to decades-long durability Advances in material modelling of plain concrete Analysis of reinforced concrete structures Steel-concrete interaction, fibre-reinforced concrete, and masonry Dynamic behaviour: from seismic retrofit to impact simulation Computational Modelling of Concrete Structures is of special interest to academics and researchers in computational concrete mechanics, as well as industry experts in complex nonlinear simulations of concrete structures.
Author: Izuru Takewaki
Publisher: Frontiers Media SA
ISBN: 2889630722
Category :
Languages : en
Pages : 135
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Book Description
Resilient buildings and cities are in the center of common interests in modern academic communities for science and engineering related to built environment. Resilience of buildings and cities against multidisciplinary risks, e.g. earthquakes, strong winds, floods, etc., is strongly related to the sustainability of buildings and cities in which reduction of damage during a disaster and fast recovery from the damage are key issues. The reduction of damage is related to the level of resistance of buildings and the time of recovery is affected by the amount of supply of damaged members, assurance of restoration work, etc. Robustness, redundancy, resourcefulness, and rapidity are four key factors for supporting the full realization of design and construction of resilient buildings and cities. This research topic gathers cutting-edge and innovative research from various aspects, e.g. robustness of buildings and cities against earthquake risk, structural control and base-isolation for controlling damage risks, quantification of resilience measures, structural health monitoring, innovative structural engineering techniques for higher safety of buildings, resilience actions and tools at the urban scale, etc.
Author: Brett Alexander Betit
Publisher:
ISBN:
Category : Building failures
Languages : en
Pages : 0
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Book Description
The progressive collapse of a structure is of critical concern to structural design engineers as the progressive collapse can lead to tragic loss of life. Due to this major threat posed by progressive collapse, building design and analysis has pivoted to account for the prevention of progressive collapse as a structural design requirement. Years of research has already been undertaken to better understand progressive collapse in order to improve building structural design as well as develop new modeling techniques to evaluate existing structures for their progressive collapse potential. These computer models and analysis techniques still require data from field experiments in order to verify their effectiveness at evaluating progressive collapse potential. The goal of this research was to provide structural engineers with a better understanding of the progressive collapse behavior of buildings in order to refine the guidelines and approach to the design of new structures as well as the evaluation of existing structures for their progressive collapse potential. In this research both field experimentation and computer modeling for progressive collapse were conducted. The building tested was a reinforced concrete parking garage, North Cannon Parking Garage, located on The Ohio State University Medical Campus in Columbus, Ohio. The structure was tested by removing two load bearing columns. One removed column was supporting the roof helipad. The other removed column was in the fifth story directly below the first removed column location. During the column’s removal, changes in the strains of the columns adjacent to the column removed were measured as well as building vibrations in the area surrounding the column during its removal.
Author: Stephen Martin Stinger
Publisher:
ISBN:
Category : Building failures
Languages : en
Pages : 129
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Book Description
The purpose of this research is to better understand the collapse resistance mechanisms of reinforced concrete buildings. Currently, resisting progressive collapse is generally outside the design considerations for ordinary buildings due to a lack of information on how to economically provide that resistance. Reinforced concrete frame structures, however, may possess inherent structural redundancy and ability to withstand collapse if the structure is properly detailed to provide alternative resistance mechanisms. A more accurate progressive analysis procedure that takes into account alternative collapse resisting mechanisms will lead to the identification of detailing requirements that could be implemented economically on new buildings or retrofit measures for existing buildings to ensure a limited ability to resist collapse and save lives. Collapse resisting mechanisms studied in this research include catenary action, compressive arch action, and contributions from infill walls. This research tested a series of three quarter scale two bay by two story frames. The column between the two bays was removed to simulate a collapse scenario. The design of the three frames consisted of discontinuous reinforcement, continuous reinforcement, and infill walls placed in the bays. The discontinuous reinforcement frame reached a load of 2.34 kips under compressive arch action and 8.19 kips under catenary tension. The continuous reinforcement frame reached a load of 5.81 kips under the flexural action and 8.30 kips under catenary tension. The frame with the infill wall did not perform significantly different than the discontinuous reinforcement frame. The results show that both compressive arch and catenary action are viable resistance mechanisms in frames under a collapse loading and could reduce the required sizes and reinforcement of structural members.
Author: Indrajit Pal
Publisher: Springer Nature
ISBN: 9811962979
Category : Technology & Engineering
Languages : en
Pages : 288
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Book Description
This, conference proceeding, book contains invited articles and contributory papers from the 2nd International Symposium on Disaster Resilience and Sustainable Development, organized by Asian Institute of Technology, Thailand, on June 24–25, 2021. It includes contributions from researchers and practitioners working in the area of disaster mitigation and risk reduction for sustainable communities. The articles cover the topics such as on tools and techniques of hazard identifications, risk assessment, engineering innovations for hazard mitigation, and safe design of structures to the vulnerable systems. The content caters to research scholars, students, industry professionals, data analytics companies, re-insurance companies, government bodies and policymakers, who work in the field of hazard modeling and disaster management.
Author: Daniel Justin Reese Morone
Publisher:
ISBN:
Category :
Languages : en
Pages : 116
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Book Description
The research results provide valuable information to the study of progressive collapse as the behavior and response of a reinforced concrete structure subjected to multiple column losses is investigated and discussed at length. The proposed procedure and model are suggested for use by engineers for the quick and simple check of a structure's ability to resist progressive collapse. The final simplified model consists of only a few frame elements and is developed for general use of analyzing different types of building structures.
