Some lessons are only learned from mistakes but, it’s much cheaper to learn from someone else’s mistakes than to have to do so from your own. Drawing on over fifty years of working with concrete structures, Robin Whittle examines the problems which he has seen occur and shows how they could have been avoided.
The first and largest part of the book tells the stories of a number of cases where things have gone wrong with concrete structures. Each case is analyzed to identify its cause and how it might have been prevented. It then looks at how failures in structural modelling can lead to big problems if they are not identified before construction is undertaken. Beyond this it examines how contract arrangements can encourage or prevent problems in the designing and building processes. It concludes with an examination of the role research and development in preventing failures.
By identifying the differences between shoddy economizations and genuine efficiency savings, this book offers savings in the short term which won’t be at the expense of a structure’s long-term performance. Invaluable reading if you’re designing or building concrete structures and want to avoid problems which could be expensive or embarrassing further down the line.
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Practical Project Management for Building and Construction covers the 14 knowledge areas of project management that are essential for successful projects in the construction industry. For each knowledge area, it explains the processes for scope, time, risk, cost, and resource management. Filled with work and process flow diagrams, it demonstrates how projects progress throughout the project life cycle.
The book details the processes that must be included in the management process to deliver projects on time and within budget. The processes and knowledge areas described reference the ISO 10006 Standard (guidelines for quality management in projects), the international project management standards of the PMBOK® Guide, and the rapidly emerging ISO 21500 standard. Coverage includes change management, working environment, quality and communication, and procurement management. Illustrating the entire project process, this pioneering reference:
Reports on regulations from the European Union and the United States that impact construction projects
Identifies the knowledge areas a project manager must control
Examines time-tested strategies, various types of contracts, remuneration forms, and contract close out
Includes many examples and templates to help you generate essential project documents
The book supplies accessible information on a range of helpful tools such as work breakdown structure and earned value. Explaining how to use a network diagram with its gaps and critical paths, the methods described in the text will help you control the WHAT, HOW, and WHEN to do things as well as WHO is responsible for doing them, which will lead to successful project management. Because a large part of the book addresses general project management concepts, the lessons learned will also be helpful to project managers outside the building and construction industry.
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Advances and Trends in Structural Engineering, Mechanics and Computation features over 300 papers classified into 21 sections, which were presented at the Fourth International Conference on Structural Engineering, Mechanics and Computation (SEMC 2010, Cape Town, South Africa, 6-8 September 2010). The SEMC conferences have been held every 3 years in Cape Town, and since then brought together academics, researchers and practitioners active in structural mechanics, associated computation and structural engineering. The main purpose of the conferences was to review recent achievements in the advancement of knowledge and understanding in these areas, share the latest developments, and address the challenges that the present and the future pose.
All major aspects of structural mechanics, associated computation and structural engineering are addressed in the present volume, including: structural mechanics (dynamics, vibration, impact, buckling, seismic response, fluid-structure interaction, soil-structure interaction); mechanics of materials (plasticity, fracture, fatigue, creep, shrinkage, damage, deterioration); numerical/computational modelling (numerical methods, formulations, finite-element modelling, structural modelling, material modelling, simulations); structural engineering and construction in the various materials (steel, concrete, timber, masonry, glass, steel-concrete composite, fibre-reinforced composite, laminated composite); design, construction and operational considerations (fire resistance, seismic resistance, loading, safety and reliability, codification, design optimisation, construction, assembly, monitoring, maintenance, repair, retrofitting). The structures dealt with include all sorts of buildings, sports facilities, bridges, viaducts, tunnels, underground structures, foundation structures, coastal structures, dams, industrial towers and masts, containment structures (silos, tanks and pressure vessels), ship and aircraft structures, motor-vehicle structures, mechanical components and biological structures.
Advances and Trends in Structural Engineering, Mechanics and Computation is published as a book of extended abstracts, and an accompanying CD-ROM with the full papers, and will be much of interest to engineers, academics and researchers in civil, structural, mechanical and aerospace engineering, and to those concerned with the analysis, design, construction and maintenance of engineering structures.
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Structural integrity of infrastructures can be preserved if damage is diagnosed, localized, and repaired in
time. During the past decade, there has been a considerable effort to automate the process of structural
health monitoring, which is complicated by the inherent large size of civil structures. Hence, a need has
arisen to develop new approaches that enable more effective health monitoring.
In this paper, a new sensing technique for damage localization on large civil structures is proposed.
Specifically, changes in strain are detected using a capacitance sensor built with a soft, stretchable dielectric
polymer with attached stretchable metal film electrodes. A change in strain causes a measurable change in
the capacitance of the sensor, which can be directly monitored when the sensor is fixed to a structure.
The proposed method is shown here to permit an accurate detection of cracks. The proposed system
deploys a layer of dielectric polymer on the surface of a structural element, and regularly monitors any
change in capacitance, giving in turn information about the structural state. The smart material is
composed of inexpensive silicone elastomers, which make the monitoring system a promising application
for large surfaces. Results from tests conducted on small-scale specimens showed that the technology is
capable of detecting cracks, and tests conducted on large-size specimens demonstrated that several sensor
patches organized on a sensor sheet are capable of localizing a crack. The sensor strain also exhibits a high
correlation with the loss of stiffness
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In this paper, we discuss the design and calculation methods of integral-lift scaffolds under condition of
operating, climbing up/down and falling. Dead loads, construction live loads and wind loads for integral-lift
scaffolds are given in this paper. The key factors such as additional load factor κ are introduced and defi ned
for recommendation as well. Load and resistance factor design method based on probability theory is
introduced for the design of the main load-bearing structures. Herein, the additional partial safety factor
of material strength γ ′
m is introduced specifi cally for scaffolding frames which are often frequently reused
under poor outdoor conditions. Some important checking methods proposed specifi cally for integral-lift
scaffolds such as checking of anti-slide strength of couplers and anti-overturning analyses are also presented. Meanwhile, allowable strength design method is suggested in the design of the lifting equipments,
suspending rods and slings. The proposed methods in this paper will be useful guidelines for safe design
of integral-lift scaffolds.
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A method has been proposed for the analysis of three-dimensional shear wall and shear core assemblies
having stepwise changes in the cross section. The analysis is based on a variant of the continuous connection
method. In the continuous approach, the connecting beams are replaced by equivalent continuous connections. The differential equation systems for shear wall structure segments of constant cross section are
uncoupled by orthogonal eigenvectors. The solution matches the boundary conditions of the upper and lower
parts of the wall at the plane of contiguity, at which an abrupt change in cross section occurs. This yields a
system of linear equations, which enable the determination of the integration constants. The correctness
and effi ciency of the proposed method are illustrated by its application to the analysis of plane and threedimensional shear wall systems of variable cross section
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The book opens with a derivation of kinematically nonlinear 3-D continuum mechanics for solids. Then the principle of virtual work is utilized to derive the simpler, kinematically linear 3-D theory and to provide the foundation for developing consistent theories of kinematic nonlinearity and linearity for specialized continua, such as beams and plates, and finite element methods for these structures. A formulation in terms of the versatile Budiansky-Hutchinson notation is used as basis for the theories for these structures and structural elements, as well as for an in-depth treatment of structural instability.
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Design and Analysis of Materials and Engineering Structures
Author: Andreas Ochsner, Lucas F. M. da Silva, Holm Altenbach | Size: 7.9 MB | Format:PDF | Quality:Unspecified | Publisher: Springer | Year: 2013 | pages: 178 | ISBN: 9783642322945
The idea of this monograph is to present the latest results related to design and analysis of materials and engineering structures. The contributions cover the field of mechanical and civil engineering, ranging from automotive to dam design, transmission towers and up to machine design and exmaples taken from oil industry. Well known experts present their research on damage and fracture of material and structures, materials modelling and evaluation up to image processing and visualization for advanced analyses and evaluation
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This book points out the need of a multidisciplinary approach in the field of risk assessment and management. It provides an overview of the problems, approaches and common practices directly related to earthquake risk mitigation and, in particular, to the preparation of earthquake emergency plans. Written by a team of specialists from different disciplines, the authors worked together extensively in order to create unity and continuity in the text as a whole. Each topic is illustrated with examples of actual applications taken from the bibliography – including websites with available relevant information. Case studies and information on some relevant international projects are given. Audience This work will be of interest to students and professionals with a basic education in geology, geophysics, geotechnical and civil engineering, system analysis, geography and architecture. It can be used as a textbook for a specialized post-graduate course on the topic.
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