Books about construction contracts tend to be dense and wordy, but what most architects, quantity surveyors, project managers, builders and employers are looking for is an easily navigable, simple guide to using a contract, written in plain language. The JCT Standard Building Contract 2011 is an uncomplicated book about a complex and commonly used contract. It straightforwardly and concisely sets out exactly what the contract requires in various circumstances, as far as possible without legal jargon and without assuming any particular legal or contractual expertise from the reader. It explains, often from first principles, exactly what is meant by a contract and why certain clauses, such as extension of time clauses or liquidated damages clauses are present and more importantly, what they mean. The book is divided into many chapters, each with many sub–headings, to make it easy to read and to help readers to find relevant explanations quickly. Tables and flowcharts are used to ensure clarity and most chapters include a section dealing with common problems. Covers the recently issued JCT Standard Building Contract 2011 Straightforward, concise, and as far as possible free of legal jargon Sets out exactly what the contract requires in various circumstances Includes many tables and flowcharts to ensure clarity.
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Sensor Technologies for Civil Infrastructures, Volume 1: Sensing Hardware and Data Collection Methods for Performance Assessment
Author: Ming L. Wang, Jerome P. Lynch, Hoon Sohn | Size: 44 MB | Format:PDF | Quality:Unspecified | Publisher: Woodhead Publishing | Year: 2014 | pages: 588 | ISBN: 0857094327, 9780857094322
Sensors are used for civil infrastructure performance assessment and health monitoring, and have evolved significantly through developments in materials and methodologies. Sensor Technologies for Civil Infrastructure Volume I provides an overview of sensor hardware and its use in data collection.
The first chapters provide an introduction to sensing for structural performance assessment and health monitoring, and an overview of commonly used sensors and their data acquisition systems. Further chapters address different types of sensor including piezoelectric transducers, fiber optic sensors, acoustic emission sensors, and electromagnetic sensors, and the use of these sensors for assessing and monitoring civil infrastructures. Developments in technologies applied to civil infrastructure performance assessment are also discussed, including radar technology, micro-electro-mechanical systems (MEMS) and nanotechnology.
Sensor Technologies for Civil Infrastructure provides a standard reference for structural and civil engineers, electronics engineers, and academics with an interest in the field.
Describes sensing hardware and data collection, covering a variety of sensorsExamines fiber optic systems, acoustic emission, piezoelectric sensors, electromagnetic sensors, ultrasonic methods, and radar and millimeter wave technologyCovers strain gauges, micro-electro-mechanical systems (MEMS), multifunctional materials and nanotechnology for sensing, and vision-based sensing and lasers
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An analytical study of reinforced concrete beam-column joint behavior under seismic loading
Author: Nilanjan Mitra | Size: 10 MB | Format:PDF | Quality:Unspecified | Publisher: University of Washington | Year: 2007 | pages: 278
Recently, researchers have sought to develop performance-based design methods that enable
the design of a structure to achieve specific performance objectives, typically in excess of ‘life- safety’, under a given level of earthquake loading. Accomplishing performance-based design requires accurate prediction of component load and deformation demands, and typically nonlinear analysis is employed to determine these demands. The research presented here focuses on developing a series of analysis and design tools to support the performance-based design of one particular structural component: reinforced-concrete beam-column joints. This particular component is chosen for investigation because, despite the fact that laboratory and post-earthquake reconnaissance suggest that joint sti.ness and strength loss can have a significant impact on structural response, the inelastic response of these components is rarely considered in analysis or design. Data from previous experimental investigations of joints, spanning a wide range of geometric, material and design parameters, were assembled. Using these data, a series of models were developed and applied to advance understanding of the seismic behavior, sim- ulation and design of reinforced concrete beam-column joints. These include a 1) discrete choice probabilistic failure initiation model, 2) continuum model for joints, 3) strut-and-tie models for joint and 4) a component-based super-element model for the joint region.
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Alex Tomanovich excel sheets on excelcalcs & steeltools upto 2013
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OS ANGELES INVENTORY OF NONDUCTILE CONCRETE BUILDINGS FOR ANALYSIS OF SEISMIC COLLAPSE RISK HAZARDS
Author: T. Anagnos, M. C. Comerio, C. Goulet, H. Na , 4 J. Steele, and J. P. Stewart | Size: 397 MB | Format:PDF | Quality:Unspecified | Publisher: The 14 th World Conference on Earthquake Engineering October 12-17, 2008, Beijing, China | Year: 2008 | pages: 8
Nonductile concrete buildings arguably represent the greatest seismic life safety hazard in many urban centers world-wide because of their collapse potential. This paper documents the development of an inventory to
evaluate the risk from the approximately 1600 potentially nonductile concrete buildings in the City of Los Angeles. Using state-of-the-art spatial databases, publicly available online resources, and building inspections, we record the geographic distribution of these buildings as well as their general characteristics with respect to structural configurations and usage. We describe the diverse array of data sources used to develop the inventory, which provides information on building size, age, type, usage, and ownership type. We particularly emphasize the data collection methodologies developed and utilized for this project and the significant challenges associated with data collection of this type. This information is being utilized in ongoing collapse risk studies related to nonductile concrete construction in Los Angeles and to guide a testing/simulation program that will ultimately lead to more accurate loss estimation tools.
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Influence of Structural Parame ters to the Seismic Collapse Resistance of RC Frames in 7-degree Seismic Fortification Zone
Author: Dai-yuan Tang. Xin-zheng Lu, Lie-ping Ye, Wei Shi | Size: 432 KB | Format:PDF | Quality:Unspecified | Publisher: Proc. 4th Int. Conf. on Protection of Structures Against Hazards, Oct. 2009, Beijing, China: pp. 331-338. | Year: 2009 | pages: 8
Currently in China structural seismic design mostly focuses on design and
verification of member strength under minor earthquake. However, during actual
earthquakes, structural systems play a more important role in seismic collapse
resistance. Therefore, in order to find the influence of structural parameters to the
seismic collapse resistance, this paper designs 24 reinforced concrete (RC) frames
in 7-degree seismic fortification zone according to the Chinese Seismic Design Code,
which have different spans, storey heights and storey numbers. Incremental dynamic analysis (IDA), recommended by ATC-63 Report, is implemented for the frames based on fiber-beam element model to evaluate their seismic collapse resistances.
The result shows that structural parameters have a great influence to seismic collapse resistance. The seismic collapse resistance of frames designed according
to the Chinese Seismic Design Code with different span has obvious difference. The
result could be referred for the further study of seismic collapse resistance.
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Three-Dimensional Seismic Collapse Analysis of Wooden Houses Using Rigid Body-Spring Method
Author: E. A. Tingatinga, H. Kawakami* and S.M. Shrestha | Size: 804 KB | Format:PDF | Quality:Unspecified | Publisher: The Open Construction and Building Technology Journal, 2008, 2, 116-123 | Year: 2008 | pages: 8
In Japan, the past few decades revealed the vulnerability of wood-framed residential buildings to strong earthquakes. The Kobe earthquake in 1995 caused tremendous loss of lives resulting from the collapse and damage of such structures that significantly affected economic condition. This disaster motivated many researchers to study the mechanisms of collapse of engineering structures in order to prevent further loss of lives in the future. In this paper, an innovative methodology in simulating the dynamic response of wood-framed buildings, for purposes of seismic performance assessment and retrofitting, is presented. The proposed method, which can simulate inelastic behavior of structures, is capable of showing realistic progressive collapse mechanisms and accurate seismic response of structures. The sequence of analyses and results in the form of computer animations are used to help building owners gain a better understanding of the seismic performance of their buildings before and after the structural reinforcement. Applications to real wood-framed residential buildings were used to show the effectiveness of the methodology in seismic performance assessment as well as retrofit plan development.
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THE EFFECTIVENESS OF SEISMIC BUILDING CODE PROVISIONS ON REDUCING THE COLLAPSE RISK OF REINFORCED CONCRETE MOMENT FRAME BUILDINGS
Author: Abbie B. Liel , Curt B. Haselton , and Gregory G. Deierlein | Size: 478 KB | Format:PDF | Quality:Unspecified | Publisher: 4th International Conference on Earthquake Engineering Taipei, Taiwan | Year: October 12-13, 2006
This paper examines the effectiveness of building code provisions in mitigating seismic collapse risk by quantifying the collapse risk of four reinforced concrete framestructures. First, an existing and a
new reinforced concrete moment frame building, designed for seismic conditions in coastal California, are compared to illustrate improvements in building code provisions over time, asmeasured in terms of reduction in collapse risk. This comparison is based on four-story reinforced concrete moment frame structures designed to be representative of a) pre-1970 non-ductile reinforced concrete construction and b) modern, ductile reinforced concrete construction. A second group of four-story reinforced moment frame structures is also considered, including modern code-conforming a) special, b) intermediate, and c) ordinary moment frames. These structures are designed for three different sites and the strength and detailing requirements are consistent with what is permitted for each site’s seismic hazard. From analysis of these structures, the uniformity of safety provided by seismic building code provisions across regions of varying seismicity is evaluated.
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As we said you before this year is different year for CivilEA, we want to add new features for CivilEA`s users. we want to extend our activity, specially we want to bold the learning here.
at first we want to open new section with name "eLearning", at this section selected users can post their learnings there and other users can ask problems and solve them.
first lesson are in progress and will be post soon.
if any user can help us to improve this section, please post in private section, and tell us the subjects that he/she can activity on it, we`ll give him ability to post there.
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