Structural Coupling and Wind-induced Response of Twin Tall Buildings with a Skybridge PDF Download

Author: Juntack Lim
Publisher:
ISBN:
Category : Couplings
Languages : en
Pages : 338

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Author: David Yun Nin Yip
Publisher:
ISBN:
Category : Buildings
Languages : en
Pages : 256

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Book Description

Author: Hong Hao
Publisher: CRC Press
ISBN: 1351850202
Category : Science
Languages : en
Pages : 1935

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Book Description
Mechanics of Structures and Materials: Advancements and Challenges is a collection of peer-reviewed papers presented at the 24th Australasian Conference on the Mechanics of Structures and Materials (ACMSM24, Curtin University, Perth, Western Australia, 6-9 December 2016). The contributions from academics, researchers and practising engineers from Australasian, Asia-pacific region and around the world, cover a wide range of topics, including: • Structural mechanics • Computational mechanics • Reinforced and prestressed concrete structures • Steel structures • Composite structures • Civil engineering materials • Fire engineering • Coastal and offshore structures • Dynamic analysis of structures • Structural health monitoring and damage identification • Structural reliability analysis and design • Structural optimization • Fracture and damage mechanics • Soil mechanics and foundation engineering • Pavement materials and technology • Shock and impact loading • Earthquake loading • Traffic and other man-made loadings • Wave and wind loading • Thermal effects • Design codes Mechanics of Structures and Materials: Advancements and Challenges will be of interest to academics and professionals involved in Structural Engineering and Materials Science.

Author: Kenny C. S. Kwok
Publisher:
ISBN: 9780784413852
Category : Architecture
Languages : en
Pages : 66

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Book Description
This state-of-the-art report describes various facets of the human response to wind-induced motion in tall buildings and identifies design strategies to mitigate the effects of such motion on building occupants.

Author: Emil Simiu
Publisher:
ISBN:
Category : Buildings
Languages : en
Pages : 100

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Author:
Publisher:
ISBN:
Category : Buildings
Languages : en
Pages : 224

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Book Description

Author: AI. LI
Publisher:
ISBN: 9781361429297
Category :
Languages : en
Pages :

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Book Description
This dissertation, "Estimation of Wind-induced Dynamic Responses of Tall Buildings of Non-ideal Mode Shapes by Time Domain Analysis" by Ai, Li, 李愛, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled ESTIMATION OF WIND-INDUCED DYNAMIC RESPONSES OF TALL BUILDINGS OF NON-IDEAL MODE SHAPES BY TIME DOMAIN ANALYSIS submitted by LI Ai for the degree of Master of Philosophy at The University of Hong Kong in September 2007 Modern architectural building design is becoming increasingly complex, and must take into account aesthetic considerations or land availability all over the world. Many buildings possess extraordinary shapes and spectacular dynamic characteristics which make them vulnerable to extreme wind events. Therefore, wind-induced response assessment exerts an important influence on the structural specifications of tall buildings during the design processes. Ad-hoc wind tunnel modelling is widely used for tall building design. In particular, the high frequency force balance (HFFB) technique has gained wide popularity. This technique assumes ideal building mode shapes, which are linear in translational directions and constant in torsion. However, this assumption does not hold good for most realistic structures of complex properties. Furthermore, the force balance technique does not give information on the vertical distribution pattern of wind loads along the building height. The present study aims to develop a wind tunnel technique to assess wind-induced responses of a tall building with complex dynamic characteristics. Time histories of the wind loads on various levels along the building height are obtained from simultaneous surface pressure measurement in the wind tunnel. Subsequent wind-induced responses are calculated by direct time integration and modal analysis. This technique inherently accounts for any nonlinear mode shapes and readily handles the wind-induced response analysis of complex structures. Verification of the techniques is made by performing a comparison HFFB measurement. It is shown that for a building of ideal mode shapes, the surface pressure measurement and the time domain response computation result in similar spectra of the base moments and building responses as those from the HFFB technique. The developed time domain technique is then used to investigate the mode shape correction factors for force balance technique on buildings of non-ideal mode shapes. A parametric study is carried out to integrate the effect of non-ideality of mode shapes, vertical distribution of wind loads and masses along the building height on the mode shape correction factors used for HFFB technique. The results agree well with those from the literature. Tall buildings of complex shapes and structural systems, or uneven mass distribution patterns are becoming increasingly popular, which greatly complicates the performance assessment under extreme wind events. A number of building models are analyzed by a structural dynamics analysis software ETABS to investigate the influence of building mass distribution pattern and mass-rigidity- center eccentricity on the dynamic properties and the wind-induced responses. Results show that uneven mass distribution considerably influences structure stiffness and subsequently the natural frequencies of vibration. Response computation reveals the fact that lighter upper storey masses induce increasing excessive building vibration. At the same time, the mass-rigidity-center offset induces extra coupled building translational-torsional modes of vibration,

Author: John D. Holmes
Publisher: CRC Press
ISBN: 1000220753
Category : Technology & Engineering
Languages : en
Pages : 639

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Book Description
Wind forces from extreme wind events are the dominant loading for many parts of the world, exacerbated by climate change and the continued construction of tall buildings and structures. This authoritative source, for practising and academic structural engineers and graduate students, ties the principles of wind loads on structures to the relevant aspects of meteorology, bluff-body aerodynamics, probability and statistics, and structural dynamics. This new edition covers: Climate change effects on extreme winds – particularly those from tropical cyclones, hurricanes and typhoons Modelling of potential wind vulnerability and damage Developments in extreme value probability analysis of extreme wind speeds and directions Explanation of the difference between ‘return period’ and ‘average recurrence interval’, as well as ‘bootstrapping’ techniques for deriving confidence limits Wind over water, and profiles and turbulence in non-synoptic winds An expanded chapter on internal pressures produced by wind for various opening and permeability scenarios Aerodynamic shaping of high- and low-rise buildings Recent developments in five major wind codes and standards A new chapter on computational fluid dynamics (CFD), as applied to wind engineering A greatly expanded appendix providing the basic information on extreme wind climates for over 140 countries and territories Additional examples for many chapters in this book

Author: Emil Simiu
Publisher: John Wiley & Sons
ISBN: 1119375886
Category : Technology & Engineering
Languages : en
Pages : 533

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Book Description
Provides structural engineers with the knowledge and practical tools needed to perform structural designs for wind that incorporate major technological, conceptual, analytical and computational advances achieved in the last two decades. With clear explanations and documentation of the concepts, methods, algorithms, and software available for accounting for wind loads in structural design, it also describes the wind engineer's contributions in sufficient detail that they can be effectively scrutinized by the structural engineer in charge of the design. Wind Effects on Structures: Modern Structural Design for Wind, 4th Edition is organized in four sections. The first covers atmospheric flows, extreme wind speeds, and bluff body aerodynamics. The second examines the design of buildings, and includes chapters on aerodynamic loads; dynamic and effective wind-induced loads; wind effects with specified MRIs; low-rise buildings; tall buildings; and more. The third part is devoted to aeroelastic effects, and covers both fundamentals and applications. The last part considers other structures and special topics such as trussed frameworks; offshore structures; and tornado effects. Offering readers the knowledge and practical tools needed to develop structural designs for wind loadings, this book: Points out significant limitations in the design of buildings based on such techniques as the high-frequency force balance Discusses powerful algorithms, tools, and software needed for the effective design for wind, and provides numerous examples of application Discusses techniques applicable to structures other than buildings, including stacks and suspended-span bridges Features several appendices on Elements of Probability and Statistics; Peaks-over-Threshold Poisson-Process Procedure for Estimating Peaks; estimates of the WTC Towers’ Response to Wind and their shortcomings; and more Wind Effects on Structures: Modern Structural Design for Wind, 4th Edition is an excellent text for structural engineers, wind engineers, and structural engineering students and faculty.

Author: Yukio Tamura
Publisher: Springer Science & Business Media
ISBN: 4431543376
Category : Science
Languages : en
Pages : 414

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Book Description
This book serves as a textbook for advanced courses as it introduces state-of-the-art information and the latest research results on diverse problems in the structural wind engineering field. The topics include wind climates, design wind speed estimation, bluff body aerodynamics and applications, wind-induced building responses, wind, gust factor approach, wind loads on components and cladding, debris impacts, wind loading codes and standards, computational tools and computational fluid dynamics techniques, habitability to building vibrations, damping in buildings, and suppression of wind-induced vibrations. Graduate students and expert engineers will find the book especially interesting and relevant to their research and work.