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Structural Optimization: Dynamic and Seismic Applications (Structural Engineering: Mechanics and Design)
by Franklin Y. Cheng Kevin Z. TrumanToday’s biggest structural engineering challenge is to design better structures, and a key issue is the need to take an integrated approach which balances control of costs with the requirement for handling earthquakes and other dynamic forces. Structural optimization is based on rigorous mathematical formulation and requires computation algorithms for sizing structural elements and synthesizing systems. Now that the right software and enough computing power are readily available, professionals can now develop a suite of alternative designs and a select suitable one. A thoroughly-written and practical book on structural optimization is long overdue. This solid book comprehensively presents current optimization strategies, illustrated with sufficient examples of the design of elements and systems and presenting descriptions of the process and results. Emphasis is given to dynamic loading, in particular to seismic forces. Researchers and practising engineers will find this book an excellent reference, and advanced undergraduates or graduate students can use it as a resource for structural optimization design.
Structural Optimization and Experimental Investigation of the Organic Rankine Cycle for Solar Thermal Power Generation
by Jing LiCompared to the conventional Rankine cycle using water, the ORC can create efficient expansion at low power, avoid superheater and offer higher thermal efficiency in low temperature application. Small-scale ORCs from several kWe to a few hundred kWe offer great potential for meeting the residential demand on heat and power, and are of growing interest in scientific and technical fields. However, one critical problem is the decreased device efficiency and cost-effectiveness that arises when the ORC is scaled down. In this thesis, the ORC is combined with low concentration-ratio solar collectors. The background, research trend, merits and importance of the solar ORC are described. To reduce the thermodynamic irreversibility and the cost of the system, three innovative solutions are proposed: solar ORC without heat transfer fluid (HTF), which employs two-stage collectors and heat storage units; hybrid solar power generation based on ORC and amorphous silicon cells; osmosis-driven solar ORC. Heat collection, storage and power conversion are optimized. The design, construction and test of a prototype are conducted, demonstrating the feasibility of the ORC for small-scale cogeneration. Special attention is paid to the variable operation and parameter design with respect to the condensation temperature.
Structural Optimization Using Shuffled Shepherd Meta-Heuristic Algorithm: Extensions and Applications (Studies in Systems, Decision and Control #463)
by Ali Kaveh Ataollah ZaerrezaThis book presents the so-called Shuffled Shepherd Optimization Algorithm (SSOA), a recently developed meta-heuristic algorithm by authors. There is always limitations on the resources to be used in the construction. Some of the resources used in the buildings are also detrimental to the environment. For example, the cement utilized in making concrete emits carbon dioxide, which contributes to the global warming. Hence, the engineers should employ resources efficiently and avoid the waste. In the traditional optimal design methods, the number of trials and errors used by the designer is limited, so there is no guarantee that the optimal design can be found for structures. Hence, the deigning method should be changed, and the computational algorithms should be employed in the optimum design problems. The gradient-based method and meta-heuristic algorithms are the two different types of methods used to find the optimal solution. The gradient-based methods require gradient information. Also, these can easily be trapped in the local optima in the nonlinear and complex problems. Therefore, to overcome these issues, meta-heuristic algorithms are developed. These algorithms are simple and can get out of the local optimum by easy means. However, a single meta-heuristic algorithm cannot find the optimum results in all types of optimization problems. Thus, civil engineers develop different meta-heuristic algorithms for their optimization problems. Different applications of the SSOA are provided. The simplified and enhanced versions of the SSOA are also developed and efficiently applied to various optimization problems in structures. Another special feature of this book consists of the use of graph theoretical force method as analysis tool, in place of traditional displacement approach. This has reduced the computational time to a great extent, especially for those structures having smaller DSI compared to the DKI. New framework is also developed for reliability-based design of frame structures. The algorithms are clearly stated such that they can simply be implemented and utilized in practice and research.
Structural Optimization with Uncertainties
by Pekka Neittaanmäki N. V. BanichukThis monograph is devoted to the exposition of new ways of formulating problems of structural optimization with incomplete information and techniques of solution. Research results concerning the optimum shape and structural properties of the bodies subjected to external loadings are recapitulated. Problems of optimal design with incomplete information, accounting for the interaction between the structure and its environment, properties of materials, existence of initial damages and damage accumulation are studied. This volume treats overcoming the corresponding mathematical difficulties caused by raising local functionals. Most of the book is devoted to the minimax approach using worst case scenarios, i.e. the so-called guaranteed approach. However, the probabilistic approach, that does not guarantee the result, is also described in the monograph, because it gives more "optimistic" results. Also, the mixed probabilistic guaranteed approach is discussed and applied for the solution of structural optimization problems with uncertainties.
Structural Performance: Probability-Based Assessment (Wiley-iste Ser.)
by Christian CremonaThis book covers the development of efficient methods for the assessment and the management of civil structures is today a major challenge from economical, social and environmental aspects. Tools for handling uncertainties in loads, geometry, material properties, construction and operating conditions are nowadays essential. Covers the key concepts across topics including probability theory and statistics, structural safety, performance-based assessment, modelling uncertainties and principles of decision theory.
Structural Performance of Masonry Elements: Mortar Coating Layers Influence (SpringerBriefs in Applied Sciences and Technology)
by J. M. Delgado Ana Sofia Guimarães António C. Azevedo Romilde A. Oliveira Fernando A.N. Silva Carlos W.A.P. SobrinhoThis book discusses the main mechanical features of masonry buildings and the peculiarities that affect their structural behaviour. It also examines technical information regarding accidents that have occurred in recent years in the Metropolitan Region of Recife, along with the historical records of these events, followed by indications of the causes for the collapse. The book offers extensive experimental results that make it possible to identify the contribution of several mortar rendering layers to the load capacity of the tested specimens. Lastly, it explores the factors that influenced the load capacity of the tested specimens.
Structural Processing for Wireless Communications
by Jianhua Lu Xiaoming Tao Ning GeThis brief presents an alternative viewpoint on processing technology for wireless communications based on recent research advances. As a lever in emerging processing technology, the structure perspective addresses the complexity and uncertainty issues found in current wireless applications. Likewise, this brief aims at providing a new prospective to the development of communication technology and information science, while stimulating new theories and technologies for wireless systems with ever-increasing complexity. Readers of this brief may range from graduate students to researchers in related fields.
Structural Properties of Porous Materials and Powders Used in Different Fields of Science and Technology
by Yury Mironovich Volfkovich Anatoly Nikolaevich Filippov Vladimir Sergeevich BagotskyThis book provides a comprehensive and concise description of most important aspects of experimental and theoretical investigations of porous materials and powders, with the use and application of these materials in different fields of science, technology, national economy and environment. It allows the reader to understand the basic regularities of heat and mass transfer and adsorption occurring in qualitatively different porous materials and products, and allows the reader to optimize the functional properties of porous and powdered products and materials. Written in an straightforward and transparent manner, this book is accessible to both experts and those without specialist knowledge, and it is further elucidated by drawings, schemes and photographs. Porous materials and powders with different pore sizes are used in many areas of industry, geology, agriculture and science. These areas include (i) a variety of devices and supplies; (ii) thermal insulation and building materials; (iii) oil-bearing geological, gas-bearing and water-bearing rocks; and (iv) biological objects. Structural Properties of Porous Materials and Powders Used in Different Fields of Science and Technology is intended for a wide-ranging audience specializing in different fields of science and engineering including engineers, geologists, geophysicists, oil and gas producers, agronomists, physiologists, pharmacists, researchers, teachers and students.
Structural Rehabilitation of Old Buildings
by Aníbal Costa João Miranda Guedes Humberto VarumThis present book describes the different construction systems and structural materials and elements within the main buildings typologies, and it analyses the particularities of each of them, including, at the end, general aspects concerning laboratory and in-situ testing, numerical modeling, vulnerability assessment and construction maintenance.
Structural Reliability (Wiley-iste Ser.)
by Maurice LemaireThis book describes the main methods used in the reliability of structures and their use in the design process leading to reliable products. This title provides the understanding needed to implement the variety of new reliability software programs.
Structural Reliability: Approaches from Perspectives of Statistical Moments
by Yan-Gang Zhao Zhao-Hui LuThe aim of this book is to deliver a unified presentation of the theory and techniques with the emphases on the applications of the moment information of random variables for structural reliability. The contents of the book will be useful for post-graduate students, researchers and engineers in the field of civil, mechanical, aerospace and aeronautical and ship engineering, and so forth. Structural reliability deals with the safety evaluation and risk assessment of engineering structures. The structures include the buildings, bridges, aircrafts, etc., refer to those bodies or systems consisting of some materials in a certain way and having the function of bearing loads and actions. One of the principal aims of structural design is the assurance of structural performance within the constraint of economy. The reliability of a structure can therefore be defined as its ability to fulfill its design purpose for a specified reference period. Since the deterministic approach failed to provide a quantitative measure of safety, probabilistic measure of safety, i.e., the structural reliability theory, has to be used. The use of the first few moments of random variables and the performance function, in original form or in its first/second order approximation, form the basic content of the book. The methods, being easy to be implemented, can avoid the shortcomings of FORM, such as the design points, derivative-based iterative computation, and thus are expected to be conveniently applied to structural reliability analysis and reliability based design.
Structural Reliability Analysis: Analytical Methods (Structural Integrity #31)
by Shun-Peng Zhu Behrooz KeshtegarThis book delves into structural reliability analysis across seven comprehensive chapters. Beginning with foundational methods and key definitions, it transitions into FORM-based formulations, such as the HL-RF method and its variants, with a focus on convergence control and stability enhancement. The subsequent chapters cover gradient methods and directional conjugate gradient formulations, addressing challenges like instability control and search direction vector adjustments. A novel optimization model for Most Probable Point (MPP) search in the original space for interval-based random variables is introduced, offering a cutting-edge approach to uncertainty optimization. The book concludes with second-order reliability analysis methods and forward-looking discussions on emerging analytical perspectives in the field.
Structural Reliability Analysis and Prediction
by Robert E. Melchers Andre T. BeckStructural Reliability Analysis and Prediction, Third Edition is a textbook which addresses the important issue of predicting the safety of structures at the design stage and also the safety of existing, perhaps deteriorating structures. Attention is focused on the development and definition of limit states such as serviceability and ultimate strength, the definition of failure and the various models which might be used to describe strength and loading. This book emphasises concepts and applications, built up from basic principles and avoids undue mathematical rigour. It presents an accessible and unified account of the theory and techniques for the analysis of the reliability of engineering structures using probability theory. This new edition has been updated to cover new developments and applications and a new chapter is included which covers structural optimization in the context of reliability analysis. New examples and end of chapter problems are also now included.
Structural Reliability and Time-Dependent Reliability (Springer Series in Reliability Engineering)
by Cao WangThis book provides structural reliability and design students with fundamental knowledge in structural reliability, as well as an overview of the latest developments in the field of reliability engineering. It addresses the mathematical formulation of analytical tools for structural reliability assessment. This book offers an accessible introduction to structural reliability assessment and a solid foundation for problem-solving. It introduces the topic and background, before dealing with probability models for random variables. It then explores simulation techniques for single random variables, random vectors consisting of different variables, and stochastic processes. The book addresses analytical approaches for structural reliability assessment, including the reliability models for a single structure and those for multiple structures, as well as discussing the approaches for structural time-dependent reliability assessment in the presence of discrete and continuous load processes. This book delivers a timely and pedagogical textbook, including over 170 worked-through examples, detailed solutions, and analytical tools, making it of interest to a wide range of graduate students, researchers, and practitioners in the field of reliability engineering.
Structural Renovation in Concrete
by Zongjin Li Christopher Leung Yunping XiThe mechanisms by which buildings and infrastructures degrade are complex, as are the procedures and methods for inspection and for rehabilitation.This book examines the various problems caused by non-uniform deformation changes, poor durability, and natural and human disasters such as earthquakes and fire. Attention is given to the causes and mech
Structural Restoration of Masonry Monuments: Arches, Domes and Walls
by George G. Penelis Gregory G. PenelisHistoric structures need to be restored in line with international guidance and charters developed by architects and archaeologists, but technical understanding of structural engineering and materials is crucial, particularly with respect to response to earthquake loading. This guide to structural assessment and restoration of masonry monuments and historical buildings outlines the techniques, materials and design procedures used. It begins with principles, theory and practice and then presents case studies. The assessment focusses on Building materials and construction techniques used in the past The mechanics of masonry The structural behaviour of masonry monuments and historical buildings In-situ investigation and laboratory tests for existing and restoration materials. The restoration elaborates on Techniques and materials available for structural restoration Structural analysis and design Deciding on the restoration scheme Emergency measures and protective measures.
Structural Safety and Ground Improvement on Bridge: Proceedings of 2024 8th International Conference on Civil Architecture and Structural Engineering (Sustainable Civil Infrastructures)
by Bingxiang Yuan Hüseyin Bilgin Qingzi Luo Zejun Han Xueqiang YangThis book provides readers with the most advanced research on bridge engineering structures and high performance concrete applications in China. Bridges as an important part of transportation facilities, its structural design and safety has been more concerned about the content. Especially in modern times, because of the needs of human travel and urban development, the structure of the bridge has also seen many innovations. However, there are consequent concerns about structural safety and stability in whole-life use. China, as the country with the largest increase in bridge construction in recent years, has shown many famous bridge projects to the world. These include the Hong Kong-Zhuhai-Macao Bridge (HZMB), which spans Guangdong, Hong Kong and Macao, the Zhang Jinggao Yangtze River Bridge in Jiangsu province, a suspension bridge with a length of more than 2,000 meters, and the Beipanjiang Railway Cable-stayed Bridge, which has the highest vertical distance from the ground of 565 meters, to name a few. In the face of complex terrain and geological conditions, Chinese bridge engineers have conducted many researches and applied to various engineering cases to finalize the construction of various bridge projects. Therefore, Chinese engineers and scholars have accumulated a lot of construction experience and research results. And we believe that these experiences and results are valuable and effective for the world bridge engineering field. The book gathers selected papers in 2024 8th International Conference on Civil Architecture and Structural Engineering, focuses on structural safety and high-performance concrete in bridges. We hope to share with bridge engineers around the world the latest experiences in bridge construction and structural safety from China, as well as the research and exploration of the application of high-performance concrete in bridge stability.
Structural Science of Crystalline Polymers: Basic Concepts and Practices
by Kohji TashiroThis book focuses on the modern development of techniques for analysis of the hierarchical structure of polymers from both the experimental and theoretical points of view. Starting with molecular and crystal symmetry, the author explains fundamental and professional methods, such as wide- and small-angle X-ray scattering, neutron diffraction, electron diffraction, FTIR and Raman spectroscopy, NMR, and synchrotron radiation. In addition, the author explains another indispensable method, computer simulation, which includes energy calculation, lattice dynamics, molecular dynamics, and quantum chemistry. These various methods are described in a systematic way so that the reader can utilize them for the purpose of 3D structure analysis of polymers. Not only such analytical knowledge but also the preparation techniques of samples necessary for these measurements and the methods of analyzing the experimental data collected in this way are given in a concrete manner. Examples are offered to help master the principles of how to clarify the static structures and dynamic structural changes in the phase transitions of various kinds of crystalline polymers that are revealed by these novel methods. The examples are quite useful for readers who want to apply these techniques in finding practical solutions to concrete problems that are encountered in their own research. The principal audience for this book is made up of young professional researchers including those working in industry, but it can also be used as an excellent reference for graduate-level students. This book is the first volume of a two-volume set with Structural Science of Crystalline Polymers: A Microscopically Viewed Structure–Property Relationship being the second volume by the same author.
Structural Science of Crystalline Polymers: Microscopically-Viewed Structure-Property Relationship
by Kohji TashiroThis book focuses on methods of how to understand the relationship between the structure and physical properties of polymers from the microscopic point of view on the basis of experimental and theoretical methodologies. It is the second volume of a two volume set with Structural Science of Crystalline Polymers. The first volume of the series, “Structural Science of Crystalline Polymers: Basic Concepts and Practices” describes the details of techniques for analysis of the hierarchical structure of crystalline polymers from both the experimental and theoretical points of view. Readers of the first volume who master the concrete techniques and concepts necessary for the analysis of the structure of polymers are now invited to begin this second volume. The methods introduced in this book are useful not only for understanding the physical properties of crystalline regions but also for interpreting the bulk properties of polymer materials from the 3D structural point of view. Forthis purpose, a concrete description is provided so that readers can use the theory or the program in the actual interpretation of physical properties. The physical properties of polymers are intimately related to the structural evolution in the crystallization process and also the structural changes in the samples subjected to an external field. Concrete methods and examples are introduced for these studies, making the book a useful and practical guide for young professional researchers, including those working in industry. At the same time, it can also be used as an excellent reference for graduate-level students.
Structural Seismic and Civil Engineering Research: Proceedings of the 4th International Conference on Structural Seismic and Civil Engineering Research (ICSSCER 2022), Qingdao, China, 21-23 October 2022
by Ankit Garg Bingxiang Yuan Yu ZhangStructural Seismic and Civil Engineering focuses on civil engineering research, anti-seismic technology and engineering structure. These proceedings gather the most cutting-edge research and achievements, aiming to provide scholars and engineers with preferable research directions and engineering solutions as reference. Subjects in these proceedings include: Engineering Structure Materials of Civil Engineering Structural Seismic Resistance Monitoring and Testing The works in these proceedings aim to promote the development of civil engineering and earthquake engineering. Thereby, promoting scientific information interchange between scholars from top universities, research centers and high-tech enterprises working all around the world.
Structural Sensing, Health Monitoring, and Performance Evaluation (Series in Sensors)
by D. HustonStructural health monitoring (SHM) uses one or more in situ sensing systems placed in or around a structure, providing real-time evaluation of its performance and ultimately preventing structural failure. Although most commonly used in civil engineering, such as in roads, bridges, and dams, SHM is now finding applications in other engineering envir
Structural Shell Analysis: Understanding and Application
by Johan Blaauwendraad Jeroen H. HoefakkerThe mathematical description of the properties of a shell is much more elaborate than those of beam and plate structures. Therefore many engineers and architects are unacquainted with aspects of shell behaviour and design, and are not familiar with sufficiently reliable shell theories for the different shell types as derived in the middle of the 20th century. Rather than contributing to theory development, this university textbook focuses on architectural and civil engineering schools. Of course, practising professionals will profit from it as well. The book deals with thin elastic shells, in particular with cylindrical, conical and spherical types, and with elliptic and hyperbolic paraboloids. The focus is on roofs, chimneys, pressure vessels and storage tanks. Special attention is paid to edge bending disturbance zones, which is indispensable knowledge in FE meshing. A substantial part of the book results from research efforts in the mid 20th century at Delft University of Technology. As such, it is a valuable addition to the body of shell research literature of continuing importance. This work can be used for university courses. It also shows professionals how to perform manual calculations of the main force flow in shell structures, and provides guidance for structural engineers estimating stresses and deformations.
Structural Stability and Its Computational Modelling (Computational Methods in Engineering & the Sciences)
by Anders Eriksson Arne NordmarkThe volume showcases how basic formulation and solution methods can be used for an improved understanding of stability-affected structures. It also highlights the numerical treatment of the resulting equations, demonstrating and quantifying many aspects of structural stability not available to engineers by the traditional methods. The elaborated theoretical background is also used to show how methods included in commercial software can give misleading conclusions. The book will be of interest to researchers and professionals working in computational modelling of structures. The book includes exercises and projects, appended to each chapter, which further extends its usability as a text book in classroom teaching and for professional courses.
Structural Stability and Vibration
by Sine Leergaard Wiggers Pauli PedersenThis book offers an integrated introduction to the topic of stability and vibration. Strikingly, it describes stability as a function of boundary conditions and eigenfrequency as a function of both boundary conditions and column force. Based on a post graduate course held by the author at the University of Southern Denmark, it reports on fundamental formulas and makes uses of graphical representation to promote understanding. Thanks to the emphasis put on analytical methods and numerical results, the book is meant to make students and engineers familiar with all fundamental equations and their derivation, thus stimulating them to write interactive and dynamic programs to analyze instability and vibrational modes.
Structural Stability in Engineering Practice
by Lajos KollarStructural Stability in Engineering Practice elucidates the various problems associated with attaining stability, and provides the results for practical use by the design engineer. By presenting a simple and visual description of the physical phenomena, the authors show how to determine the critical loads of various structures, such as frames, arch