Solution of System of Simultaneous Linear Equations
- Solution of 2 Simultaneous Linear Equations with 2 Unknowns
- Solution of 3 Simultaneous Linear Equations with 3 Unknowns
- Solution of 4 Simultaneous Linear Equations with 4 Unknowns
- Solution of 5 Simultaneous Linear Equations with 5 Unknowns
- Solution of 6 Simultaneous Linear Equations with 6 Unknowns
- Solution of 7 Simultaneous Linear Equations with 7 Unknowns
- Solution of 8 Simultaneous Linear Equations with 8 Unknowns
- Solution of 9 Simultaneous Linear Equations with 9 Unknowns
- Solution of 10 Simultaneous Linear Equations with 10 Unknowns
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Spreadsheet program written in MS-Excel for the purpose of flat roof snow loading analysis for buildings and structures per the ASCE 7-02 Code. Specifically, coefficients and related and required parameters are selected or calculated in order to compute the net design snow loads, including snow drift due on lower roofs and rain-on-snow surcharge.
- Snow loading analysis for buildings with flat or low slope roofs
- Ground snow loads map (Figure 7-1 of ASCE 7-02 Code)
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Spreadsheet program written in MS-Excel for the purpose of analysis of concrete slabs on grade. Specifically, a concrete slab on grade may be subjected to concentrated post or wheel loading. Then for the given parameters, the slab flexural, bearing, and shear stresses are checked, the estimated crack width is determined, the minimum required distribution reinforcing is determined, and the bearing stress on the dowels at construction joints is checked. Also, design charts from the Portland Cement Association (PCA) are included to provide an additional method for determining/checking required slab thickness for flexure. The ability to analyze the capacity of a slab on grade subjected to continuous wall (line-type) load as well as stationary, uniformly distributed live loads is also provided.
- Concrete Slab on Grade Analysis for Concentrated Post or Wheel Loading
- PCA Figure 3 - Design Chart for Single Wheel Loads
- PCA Figure 7a - Design Chart for Post Loads (k = 50 pci)
- PCA Figure 7b - Design Chart for Post Loads (k = 100 pci)
- PCA Figure 7c - Design Chart for Post Loads (k = 200 pci)
- Concrete Slab on Grade Analysis for Wall Load
- Concrete Slab on Grade Analysis for Stationary Uniform Live Loads
This program is based on the following references:
a. "Load Testing of Instumented Pavement Sections - Improved Techniques for Appling the Finite Element Method to Strain Predition in PCC Pavement Structures" - by University of Minnesota, Department of Civil Engineering (submitted to MN/DOT, March 24, 2002)
b. "Principles of Pavement Design" - by E.J. Yoder and M.W. Witczak (John Wiley & Sons, 1975)
c. "Design of Concrete Structures" - by Winter, Urquhart, O'Rourke, and Nilson" - (McGraw-Hill, 1962)
d. "Dowel Bar Opimization: Phases I and II - Final Report" - by Max L. Porter (Iowa State University, 2001)
e. "Design of Slabs on Grade" - ACI 360R-92 - by American Concrete Institute (from ACI Manual of Concrete Practice, 1999)
f. "Slab Thickness Design for Industrial Concrete Floors on Grade" (IS195.01D) - by Robert G. Packard (Portland Cement Association, 1976)
g. "Concrete Floor Slabs on Grade Subjected to Heavy Loads" Army Technical Manual TM 5-809-12, Air Force Manual AFM 88-3, Chapter 15 (1987)
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Final Report on the Collapse of World Trade Center Buiding 7
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Local Web Buckling Strength of Coped Steel I Beams ASCE J. Struct. Engrg.
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The principal aim of this handbook is to present a detailed introduction to the main issues influencing the dynamic behaviour of railway vehicles and a summary of the history and state of the art of the analytical and computer tools and techniques that are used in this field around the world. The level of technical detail is intended to be sufficient to allow analysis of common situations but references are made to other published material for those who need more detail in specific areas. The main readership will be engineers working in the railway industry worldwide and researchers working on issues connected with railway vehicle behaviour, but it should also prove useful to those wishing to gain a basic knowledge of topics outside their specialist technical area.
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This book constitutes the refereed proceedings of the 6th International Conference on Geographic Information Science, GIScience 2010, held in Zurich, Switzerland, in September 2010. The 22 revised full papers presented were carefully reviewed and selected from 87 submissions. While traditional research topics such as spatio-temporal representations, spatial relations, interoperability, geographic databases, cartographic generalization, geographic visualization, navigation, spatial cognition, are alive and well in GIScience, research on how to handle massive and rapidly growing databases of dynamic space-time phenomena at fine-grained resolution for example, generated through sensor networks, has clearly emerged as a new and popular research frontier in the field.
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The book leads off with a paper by Galambos on “The safety of bridges”, in which the author attempts to present an explanation to the tragic events of August 1, 2007, when the bridge carrying the Interstate Highway I-35W over the Mississippi River in Minneapolis, Minnesota, USA, collapsed unexpectedly, plunging the afternoon rush-hour traffic down with the bridge. The author recommends more thorough design checks for new bridges, inspection of older bridges by experienced bridge engineers and the employment of monitoring techniques so that a collapse like the Minneapolis Bridge remains a very rare event.
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