This volume contains selected peer-reviewed papers presented at the IMA 4th International Conference on Mathematics in Transport. These papers deal with the development and application of mathematical and statistical modelling in transport and present research on the mathematical ideas and methodologies required to cope with the increasing demand on transport infrastructure. Authorship is international and a wide variety of topics are covered including public transport and scheduling, pricing issues, travel behaviour and choice modelling, safety and spatial and location modelling. It has an international perspective with authors representing many countries and covering a variety of topics.
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PROBABILITY AND STATISTICS FOR ENGINEERS AND SCIENTISTS, Fourth Edition, continues the approach that has made previous editions successful. As a teacher and researcher at a premier engineering school, author Tony Hayter is in touch with engineers daily--and understands their vocabulary. The result of this familiarity with the professional community is a clear and readable writing style that readers understand and appreciate, as well as high-interest, relevant examples and data sets that hold readers' attention. A flexible approach to the use of computer tools includes tips for using various software packages as well as computer output (using MINITAB and other programs) that offers practice in interpreting output. Extensive use of examples and data sets illustrates the importance of statistical data collection and analysis for students in a variety of engineering areas as well as for students in physics, chemistry, computing, biology, management, and mathematics.
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Dear all, i need theses from Washington University
1. Behavior of geosynthetic reinforced soil walls with poor quality backfills on yielding foundations Saidin Fadzilah (2007)
2. Deformation prediction of geosynthetic reinforced soil retaining walls Boyle, Stanley R (1995)
3. Internal stability analyses of geosynthetic reinforced retaining walls Lee, Wei F (2000)
Modal combination method for earthquake-resistant design of tall structures to multidimensional excitations
Author: HONG-NAN LI, LI SUN1 AND GANGBING SONG | Size: 336 KB | Format:PDF | Quality:Unspecified | Publisher: HONG-NAN LI, LI SUN1 AND GANGBING SONG | Year: 2004 | pages: 19
This paper presents a modal combination method for earthquake-resistant design of structures to multidimensional
seismic excitations. With the assumption that an earthquake is a stationary random vibration, the correlation
among the input components is considered in the proposed method. The relationship coefficients between
the translational component and rotational component is then derived in the frequency domain. The combination
method of response spectrum for structural response to multidimensional earthquakes is proposed based on
the random vibration theory. With the help of the derived modal correlation coefficients, the formulation for
structural response to the two-dimensional earthquake excitations can be obtained. Numerical examples
demonstrate the effectiveness and high precision of the proposed methods.
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Implications of vertical mass modeling errors on 2D dynamic structural analysis
Author: TIMOTHY M. WHALEN, GRAHAM C. ARCHER AND KISHOR M. BHATIA | Size: 520 KB | Format:PDF | Quality:Unspecified | Publisher: TIMOTHY M. WHALEN, GRAHAM C. ARCHER AND KISHOR M. BHATIA | Year: 2004 | pages: 10
The use of diagonal (lumped) mass matrices is common in dynamic structural analysis. The assumptions made
when performing the lumping procedure, however, are not always consistent with the underlying physical behavior
and can therefore modify the dynamic properties of the modeled structure. The influence of errors in mass
modeling for vertical degrees of freedom on dynamic behavior and seismic response is illustrated. We demonstrate
that overestimation of the lumped masses associated with vertical displacements in 2D frame models of
these structures leads to inaccurate modal periods and associated modal participation factors for dynamic response.
The ramifications of these inaccuracies on seismic response are shown and implications in other dynamic analysis
situations are discussed.
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Dynamic analyses were carried out to study the seismic response of high-rise steel moment-resisting frames in
16-storey buildings. The frames are intentionally designed using three different design procedures: strengthcontrolled
design, strong column–weak beam controlled design, and drift-controlled design. The seismic performances
of the so-designed frames with vertical mass irregularities were discussed in view of drift ratio, plastic
hinge rotation, hysteretic energy input and stress demand. A demand curve of hysteretic energy inputs was also
presented with two earthquake levels in peak ground accelerations for a future design application.
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FLEXURAL STRENGTH–DUCTILITY PERFORMANCE OF FLANGED BEAM SECTIONS CAST OF HIGH-STRENGTH CONCRETE
Author: A. K. H. KWAN AND F. T. K. AU | Size: 257 KB | Format:PDF | Quality:Unspecified | Publisher: A. K. H. KWAN AND F. T. K. AU | Year: 2004 | pages: 15
Flanged sections are often used for long-span concrete beams to maximize their structural efficiency. However,
although for the same sectional area a flanged section could render a higher flexural strength, it would also lead
to a lower flexural ductility, especially when heavily reinforced. Thus, when evaluating the flexural performance
of a beam section, both the flexural strength and ductility need to be considered. In this study, the post-peak flexural
behaviour of flanged sections is evaluated by means of an analytical method that uses the actual stress–strain
curves of the materials and takes into account strain reversal of the tension reinforcement. From the numerical
results, the flexural strength–ductility performance of flanged sections is investigated by plotting the strength and
ductility that could be simultaneously achieved in the form of design graphs. It is found that (1) at the same
overall dimensions and with the same amount of reinforcement provided, a flanged section has lower flexural
ductility than a rectangular section; (2) at the same overall dimensions, a flanged section has inferior strength–
ductility performance compared to a rectangular section; and (3) at the same sectional area, a flanged section has
better strength–ductility performance compared to a rectangular section.
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Bentley AutoPIPE is a stand-alone computer aided engineering (CAE) program for calculation of piping stresses, flange analysis, pipe support design, and equipment nozzle loading analysis under static and dynamic loading conditions. In addition to 24 piping codes, AutoPIPE incorporates ASME, British Standard, API, NEMA, ANSI, ASCE, AISC, UBC, and WRC guidelines and design limits to provide a comprehensive analysis of the entire system. AutoPIPE is available for Windows XP/Vista and can be licensed across networks.
There are three versions of AutoPIPE: Standard, Plus, and Nuclear. The Plus version offers several advanced analysis capabilities not available in the Standard version which are detailed later in this chapter. The Nuclear version offers all of the features of the Plus version with the addition of all the features for ASME class 1 design. A KHK2 Add-On option is also available for the Plus or Nuclear version that allows use of the Japanese KHK Level 2 piping code in addition to all the features of the Plus or Nuclear version. AutoPIPE is a proven, well established program which has been commercially available since 1986. AutoPIPE’s rigorous quality assurance practices have withstood numerous on-site audits, making AutoPIPE one of the few PC based piping programs approved for use in nuclear safety applications.
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IMPORTANT NOTICE: You may use this software for evaluation purposes only.
If you like it, it is strongly suggested you buy it to support the developers.
By any means you may not use this software to make money or use it for commercial purpose.
Effect of structural characteristics distribution on strength demand and ductility reduction factor of MDOF systems considering soil-structure interaction
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