ACI 551 R-92: Design Guide for Tilt-Up Concrete Panels - (Reapproved 1997, 2003), 51 pp.
This guide presents information to expand on the provisions of ACI 318, Section 14.8 applied to the design of site-cast precast, or “tilt-up,” concrete panels, and to provide a comprehensive procedure for the design of these important structural elements. In addition, this guide provides design recommendations for various support and load conditions not specifically covered in ACI 318. Included are design guidelines for in-plane shear.
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Granular And Complex Materials
World Scientific Publishing Company | 2007-10-18 | ISBN: 9812771980 | 268 pages | PDF | 14,2 MB
The science of complex materials continues to engage researchers from a vast range of disciplines, including physics, mathematics, computational science, and virtually all domains of engineering. This volume presents a unique multidisciplinary panorama of the current research in complex materials. The contributions explore an array of problems reflecting recent developments in four main areas: characterization and modeling of disordered packings, micromechanics and continuum theory; discrete element method; statistical mechanics. The common theme is the quest to unravel the connection between the microscopic and macroscopic properties of complex materials.
Note from Nautilus87 :
This book is also about Discrete Element Method . It is mainly into Geomchanics:-b'coz soil is granular and complex material and micromechanical DEM simulation. It comprises of edited research papers .
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Fundamentals of Discrete Element Methods for Rock Engineering: Theory and Applications
Fundamentals of Discrete Element Methods for Rock Engineering: Theory and Applications
Publisher: Elsevier Publishing Company | Pages: 562 | January 15, 2007 | ISBN 0-444-82937-7 | PDF | 23 MB
“ Key Features
# Presents the fundamental concepts of the discrete models for fractured rocks, including constitutive models of rock fractures and rock masses for stress, deformation and fluid flow
# Provides a comprehensive presentation on discrete element methods, including distinct elements, discontinuous deformation analysis, discrete fracture networks, particle mechanics and Cosserat representation of granular media
# Features constitutive models of rock fractures and fracture system characterization methods detaiing their significant impacts on the performance and uncertainty of the DEM models
Description
This book presents some fundamental concepts behind the basic theories and tools of discrete element methods (DEM), its historical development, and its wide scope of applications in geology, geophysics and rock engineering. Unlike almost all books available on the general subject of DEM, this book includes coverage of both explicit and implicit DEM approaches, namely the Distinct Element Methods and Discontinuous Deformation Analysis (DDA) for both rigid and deformable blocks and particle systems, and also the Discrete Fracture Network (DFN) approach for fluid flow and solute transport simulations. The latter is actually also a discrete approach of importance for rock mechanics and rock engineering. In addition, brief introductions to some alternative approaches are also provided, such as percolation theory and Cosserat micromechanics equivalence to particle systems, which often appear hand-in-hand with the DEM in the literature. Fundamentals of the particle mechanics approach using DEM for granular media is also presented.
Readership
Researchers and advanced undergraduate and graduate students with an emphasis in rock mechanics, rock physics, civil engineering, engineering geology, environmental engineering, petroleum engineering, and nuclear waste management.
Contents
Foreword.
Preface.
1. Introduction. Part 1: Fundamentals. 2. Governing equations for motion and deformation of block systems and heat transfer. 3. Constitutive models of rock fractures and rock masses - the basics. 4. Fluid flow and coupled hydro-mechanical behaviour of rock fractures. Part 2: Fracture System Characterization and Block Model Construction. 5. Basics of characterization of fracture systems - field mapping and stochastic simulations. 6. Basics of combinatorial topology for block system representation. 7. Numerical techniques for block system construction. Part 3: DEM approaches. 8. Explicit discrete element method for block systems – the distinct element method. 9. Implicit Discrete Element Method for block systems – discontinuous deformation analysis (DDA). 10. Discrete Fracture Network (DFN) method. 11. Discrete Element Methods for granular materials. Part 4: Application Studies. 12. Case studies of Discrete Element Methods in geology, geophysics and rock engineering. Appendix. Subject Index.
Author Information
By Lanru Jing, Royal Institute of Technology, Stockholm, Sweden; and Ove Stephansson, Royal Institute of Technology, Stockholm, Sweden
Note from Nautilus87:
This book introduces the reader to Discrete Element Method. The Discrete element method was developed in 1971 by Prof. Peter A. Cundall for Modelling the soil and rock behavior . Its main advantage is that it is based on discontinuum mechanics rather than continuum mechanics (Fem) . It has the ability to simulate cyclic triaxial tests, slope stability , using anisotropic conditions,crack growth, discontinuity in rock and soil . It is mainly implemented in pfc2d,pfc3d,Ball,trubal,UBEC,3dec and other software and code .
It can model crack growth discontinuity , particle behavior , partcle shape which Finite Element Method cannot accomplish! It is used by geotechnical experts or geomechanic's experts for tunnel design, underground construction analysis and modelling complex behavior of soil .
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Liquidated Damages and Extensions of Time: In Construction Contracts
Brian Eggleston, "Liquidated Damages and Extensions of Time: In Construction Contracts"
Wiley-Blackwell; 3rd edition (February 13, 2009) | English | 1405118156 | 408 pages | PDF | 2.26 MB
Liquidated damages and extensions of time are complex subjects, frequently forming the basis of contract claims made under the standard building and civil engineering contracts. Previous editions of Liquidated Damages and Extensions of Time are highly regarded as a guide for both construction industry professionals and lawyers to this complex area.
The law on time and damages continues to develop with an increasing flow of judgments from the courts. Alongside this, the standard forms of contract have also developed over time to reflect prevailing approaches to contractual relationships. Against this background a third edition will be welcomed by construction professionals and lawyers alike. Retaining the overall approach of the previous editions, the author clarifies, in a highly readable but legally rigorous way, the many misunderstandings on time and damages which abound in the construction industry. The third edition takes account of a large volume of new case law since the previous edition was published over ten years ago, includes a new chapter on delay analysis and features significantly expanded chapters on penalty clauses, the effects of conditions precedent and time-bars, and the complexities of causation.
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Evolutionary Topology Optimization of Continuum Structures: Methods and Applications (For FEM)
Evolutionary Topology Optimization of Continuum Structures treads new ground with a comprehensive study on the techniques and applications of evolutionary structural optimization (ESO) and its later version bi-directional ESO (BESO) methods. Since the ESO method was first introduced by Xie and Steven in 1992 and the publication of their well-known book Evolutionary Structural Optimization in 1997, there have been significant improvements in the techniques as well as important practical applications. The authors present these developments, illustrated by numerous interesting and detailed examples. They clearly demonstrate that the evolutionary structural optimization method is an effective approach capable of solving a wide range of topology optimization problems, including structures with geometrical and material nonlinearities, energy absorbing devices, periodical structures, bridges and buildings.
Presents latest developments and applications in this increasingly popular & maturing optimization approach for engineers and architects;
Authored by leading researchers in the field who have been working in the area of ESO and BESO developments since their conception;
Includes a number of test problems for students as well as a chapter of case studies that includes several recent practical projects in which the authors have been involved;
Accompanied by a website housing ESO/BESO computer programs at
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and test examples, as well as a chapter within the book giving a description and step-by-step instruction on how to use the software package BESO2D. Evolutionary Topology Optimization of Continuum Structures will appeal to researchers and graduate students working in structural design and optimization, and will also be of interest to civil and structural engineers, architects and mechanical engineers involved in creating innovative and efficient structures
Note from Nautilus87:
I am working on Fem Mesh optimization,its comes under topology, shape optimization. If any body is working on the subject plz share something with me and give me a P.M.
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vibrations of solids and structures under moving loads
# Author: Ladislav Fryba 1
# Paperbound ISBN: 978-0-7277-3539-3
# Ebook ISBN: 978-0-7277-3996-4
# Publication Date: May 1999
This book analyses the effects of moving loads on elastic and inelastic solids, elements and parts of structures and on elastic media, namely beams, continuous beams, beams on elastic foundations, rigid-plastic beams and thin-walled beams, frames, arches, strings, plates elastic spaces and half spaces etc. Vibrations in these structures are produced by various types of moving force (loads), such as vehicles with the inertial effects of their masses and by random loads which move with constant or variable speeds along the structure. This type of loading (varying in time and space) may be found in transport engineering structures which need to carry faster and heavier vehicles while the structures over which the vehicles move are becoming slenderer and lighter. The book provides theoretical formulations for the problem, and mathematical solutions for all cases and their application to civil, mechanical, transport, naval and aircraft structures. The extensive and up-to-date bibliography gives a worldwide survey of the problem. The monograph describes ways to prolong the life of existing/older structures and presents a theoretical guide to the economic design of new civil, mechanical and other engineering structures, such as bridges, rails, sleeper, roadways, airport runways, tunnels, foundations for all types of highways and railways, cranes and other transport structures. This book will be of great value to civil, mechanical and transport engineers, researchers, project engineers, designers, postgraduate and undergraduate students and all those interested in structural dynamics.
Note from Nautilus87:
A very good book :) and a Must have :)
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Professor Wong Kai Sin Nanyang Technological University, Singapore
This short course focuses on issues related to deep excavations in fi ne grained soils. It provides an overview of deep excavation in soil and an understanding of the uncertainties and variables affecting the performance of the earth retention system. Its main emphasis is on the design and analysis using the limit equilibrium and the fi nite element methods and the range of applications and limitations of the Mohr-Coulomb soil model. Some topics will be covered in detail while others will be highlighted on the important points. This course has been taught in Australia, Indonesia, Vietnam and extensively in Singapore.
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Prevention of Reflective Cracking in Pavements
L. Francken, A. Vanelstraete,
Spon Press | 1998 | ISBN: 0419229507 | 138 pages | PDF | 5,1 MB
Crack reflection, one of the main causes of premature pavement deterioration, is a widespread problem in many countries. This book considers all aspects of the subject, including assessment and use of overlay systems.
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147 Kb file size - 82 slides in PDF format - Didactic pourpose (Very interesting!)
The presentation is all about the basic concepts for those who started there career with Civil Engineering.
I very much like personally this small presentation which grows my concepts towards the structure designing.
I hope you GUYS like it
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I create a very complex FEM model with triangular and square elements but when i got the results, noticed that RISA gives them only on local coordinates. Is it possible to get the results on Global Coordinates.
Thanks,
Sorry ... is it possible to get the results on Global Coordinates ???
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