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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: 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: John David Marcanik
Publisher:
ISBN:
Category : Electronic Dissertations
Languages : en
Pages : 84
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Book Description
Older flat-plate buildings are susceptible to progressive collapse in which the failure of one slab-column connection can propagate to other connections and cause a full collapse of the building. The most common mechanism of failure in flat-plates is known as punching shear, when inclined shear cracks propagate through the depth of the slab and cause a conical failure around the column. Alternative resistance mechanisms such as compressive and tensile membrane action may enhance the strength and ductility of a slab and arrest the progression of the collapse. It is hoped that providing sufficient in-plane lateral restraint on an isolated slab-column specimen with continuous reinforcement will better develop these in-plane forces. An isolated slab-column specimen with 1% reinforcement ratio was tested in negative bending with in-plane lateral restraint and continuous reinforcement through the column. The slab achieved a punching shear strength of 70 kips before the first failure with 5 kips of lateral compressive force acting on the sides of the slab. It was found that the in-plane compressive forces only enhanced the capacity by 1%, but it is believed that the horizontal stiffness of the test setup was insufficient in developing the full potential of compressive membrane action. The tension reinforcement in the slab around the column experienced yielding well before the punching shear failure took place. Following the punching failure, the slab achieved a residual capacity of 69 kips due to the continuous reinforcement through the column. This indicates that the slab showed tremendous ductility as a result of the ability of the slab to develop tensile membrane action.
Author: Xiang-Lin Gu
Publisher: Springer Nature
ISBN: 9819933625
Category : Technology & Engineering
Languages : en
Pages : 962
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Book Description
This book is a compilation of selected papers from the 6th International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures (SMAR 2022). The work focuses on the state-of-the-practice and recent advances in testing and monitoring technology, in structural modeling and assessment methods, and in the application of advanced materials for structural rehabilitation. The contents make valuable contributions to international professors, research scientists, professional engineers, postdoctoral fellows and postgraduate students.
Author: Xian Yan Zhou
Publisher: Trans Tech Publications Ltd
ISBN: 3038139653
Category : Technology & Engineering
Languages : en
Pages : 1370
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Book Description
Volume is indexed by Thomson Reuters CPCI-S (WoS). The collection covers a broad spectrum of topics related to civil infrastructure engineering, which range from structural engineering, bridge engineering, geotechnical engineering, wind engineering, tunnels, subways and underground facilities, seismic engineering and disaster prevention and mitigation and protection engineering. The volume provided an excellent opportunity to discuss the challenges we are facing with our ever ageing civil infrastructure.
Author: Federico M. Mazzolani
Publisher: Springer Nature
ISBN: 3031628845
Category :
Languages : en
Pages : 1192
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Book Description
Author: Daigoro Isobe
Publisher: Butterworth-Heinemann
ISBN: 0128130423
Category : Technology & Engineering
Languages : en
Pages : 226
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Book Description
Provides a new method for analysing collapse behaviours of buildings under various scenarios, such as impact, fire, blast demolition, earthquake, and tsunami. The analysis of the vulnerability of buildings against progressive collapse is a challenging task. Progressive Collapse of Structures: Numerical Codes and Applications provides a variety of numerical analysis tools and methods which allow engineers to simulate structural collapse behavior during all stages of the process. This book covers methods such as adaptively shifted integration (ASI) and ASI-Gauss techniques. Algorithms are supplied to simulate member fracture and contact behaviors. The author also supplies various numerical examples including case studies from the World Trade Center (WTC) towers in New York City, Nuevo Leon buildings in Mexico, and the collapse of the Canterbury Television (CTV) building in New Zealand. Discusses algorithms for simulating fracture and contact behaviors of structural members Covers fire-induced progressive collapse analyses of high-rise towers, seismic pounding analysis of adjacent buildings, blast demolition analysis of steel-framed structures, and many more Includes numerical codes that supply highly accurate solutions with less memory use and small computational cost
Author: Thomas T. C. Hsu
Publisher: John Wiley & Sons
ISBN: 1118536266
Category : Technology & Engineering
Languages : en
Pages : 563
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Book Description
Developing sufficient energy resources to replace coal, oil and gas is a globally critical necessity. Alternatives to fossil fuels such as wind, solar, or geothermal energies are desirable, but the usable quantities are limited and each has inherent deterrents. The only virtually unlimited energy source is nuclear energy, where safety of infrastructure systems is the paramount concern. Infrastructure Systems for Nuclear Energy addresses the analysis and design of infrastructures associated with nuclear energy. It provides an overview of the current and future nuclear power industry and the infrastructure systems from the perspectives of regulators, operators, practicing engineers and research academics. This book also provides details on investigations of containment structures, nuclear waste storage facilities and the applications of commercial/academic computer software. Specific environments that challenge the behavior of nuclear power plants infrastructure systems such as earthquake, blast, high temperature, irradiation effects, soil-structure interaction effect, etc., are also discussed. Key features: Includes contributions from global experts representing academia and industry Provides an overview of the nuclear power industry and nuclear infrastructure systems Presents the state-of-the-art as well as the future direction for nuclear civil infrastructure systems Infrastructure Systems for Nuclear Energy is a comprehensive, up-to-date reference for researchers and practitioners working in this field and for graduate studies in civil and mechanical engineering.
Author: Portland Cement Association
Publisher:
ISBN:
Category : Concrete
Languages : en
Pages : 148
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Book Description
Author: Yong Yuan
Publisher: Springer Science & Business Media
ISBN: 9048128226
Category : Technology & Engineering
Languages : en
Pages : 1244
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Book Description
Following the great progress made in computing technology, both in computer and programming technology, computation has become one of the most powerful tools for researchers and practicing engineers. It has led to tremendous achievements in computer-based structural engineering and there is evidence that current devel- ments will even accelerate in the near future. To acknowledge this trend, Tongji University, Vienna University of Technology, and Chinese Academy of Engine- ing, co-organized the International Symposium on Computational Structural En- neering 2009 in Shanghai (CSE’09). CSE’09 aimed at providing a forum for presentation and discussion of sta- of-the-art development in scientific computing applied to engineering sciences. Emphasis was given to basic methodologies, scientific development and engine- ing applications. Therefore, it became a central academic activity of the Inter- tional Association for Computational Mechanics (IACM), the European Com- nity on Computational Methods in Applied Sciences (ECCOMAS), The Chinese Society of Theoretical and Applied Mechanic, the China Civil Engineering So- ety, and the Architectural Society of China. A total of 10 invited papers, and around 140 contributed papers were p- sented in the proceedings of the symposium. Contributors of papers came from 20 countries around the world and covered a wide spectrum related to the compu- tional structural engineering.
Author: Zheng Lu
Publisher: MDPI
ISBN: 3039214012
Category : Technology & Engineering
Languages : en
Pages : 408
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Book Description
There are many regions worldwide which are susceptible to extreme loads such as earthquakes. These can cause loss of life and adverse impacts on civil infrastructures, the environment, and communities. A series of methods and measures have been used to mitigate the effects of these extreme loads. The adopted approaches and methods must enable civil structures to be resilient and sustainable. Therefore, to reduce damage and downtime in addition to protecting life and promoting safety, new resilient structure technologies must be proposed and developed. This special issue book focuses on methods of enhancing the sustainability and resilience of civil infrastructures in the event of extreme loads (e.g., earthquakes). This book contributes proposals of and theoretical, numerical, and experimental research on new and resilient civil structures and their structural performance under extreme loading events. These works will certainly play a significant role in promoting the application of new recoverable structures. Moreover, this book also introduces some case studies discussing the implementation of low-damage structural systems in buildings as well as articles on the development of design philosophies and performance criteria for resilient buildings and new sustainable communities.
