Highways & Roadwork Calculator 與 xsec 使用情況與統計

Highway and Road Calculator contains 37 Calculators to calculate different Highway, Road and Civil Engineering parameters. - Available in Imperial (USCS) and Metric Units (SI). App has following list of 37 Calculators: 1. Radius of Curve - Arc Definition (Circular Curves) 2. Radius of Curve - Chord Definition (Circular Curves) 3. Degree of Curve - Arc Definition (Circular Curves) 4. Degree of Curve - Chord Definition (Circular Curves) 5. Tangent Distance (Circular Curves) 6. External Distance (Circular Curves) 7. Midordinate (Circular Curves) 8. Length of Long Chord (Circular Curves) 9. Length of Curve (Circular Curves) 10. Central Angle for Portion of Curve - Arc Definition (Circular Curves) 11. Central Angle for Portion of Curve - Chord Definition (Circular Curves) 12. Tangent Offset (Circular Curves) 13. Chord Offset (Circular Curves) 14. Rate of Change of Grade (Parabolic Curves) 15. Elevation of Point of Vertical Curvature (Parabolic Curves) 16. Elevation of Point x distant from Point of Vertical Curvature (Parabolic Curves) 17. Distance from Point of Vertical Curvature to Lowest Point on a Sag Curve/Highest Point on a Summit Curve (Parabolic Curves) 18. Elevation of Lowest Point on a Sag Curve/Highest Point on a Summit Curve (Parabolic Curves) 19. Minimum Length of Crest Vertical Curves (Sight Distance less than Length of Vertical Curves) 20. Minimum Length of Crest Vertical Curves (Sight Distance greater than Length of Vertical Curves) 21. Rate of Vertical Curvature 22. Structural Number (Surface Course) 23. Structural Number (Base Course) 24. Structural Number (Subbase Course) 25. Structural Number (Pavements) 26. Minimum Length of Spiral Curve 27. Thrust of Structure (Culverts) 28. Flexibility Factor 29. Ring-Compression Stress 30. Horizontal Deflection of Pipe (Iowa Formula) 31. Design Pressure - Corrugated Steel Structures (Height of Cover less than Pipe Diameter) 32. Design Pressure - Corrugated Steel Structures (Height of Cover greater than Pipe Diameter) 33. Compressive Thrust (Conduit Walls) 34. Ultimate Wall Stress (294 greater than Ratio of Pipe Diameter and Radius of Gyration of Pipe Cross Section less than 500) 35. Ultimate Wall Stress (Ratio of Pipe Diameter and Radius of Gyration of Pipe Cross Section greater than 500) 36. Design Stress of Wall 37. Pipe Wall Area

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Beam and column cross-section analysis of reinforced concrete, prestressing etc. Metric or inch-pound. Any shape: input X,Y per corner or bar. Any materials: input a sequence of stress/strain coordinates for each. Any loading; biaxial or not. An innovative cross-section analysis algorithm that is very universal is used. The enterprising design professional can take full advantage of their knowledge of the materials: • to design innovative concrete members, • to assess the remaining strength in irregular shaped surviving parts of deteriorated or damaged beams or columns. The algorithm is described by Thompson, P. J., Discussion of "Ultimate Strength Domain of Reinforced Concrete Sections under Biaxial Bending and Axial Load", ACI Structural Journal, Nov-Dec 2013, pp 1109-1112. There are established computation methods for a variety of cross-section shapes: rectangular, circular and Tee are examples. Also the established methods use a variety of shapes for the stress/strain relationship of concrete: the rectangular stress block, the parabolic stress block, linear, cracked linear are examples. With most of these established methods, if the input to the application is the same as that input to the established method then the results from the application will be the same as those from that established method. Several of the worked examples are taken from previously published articles and illustrate this point. The material description facility is completely general. Material descriptions can be prepared for any locale and any standard design code document. Also once prepared they can be copied from one job to the next. This is one of the benefits of the file read/write facilities in the application. There is a comprehensive user guide and some worked examples on the internet at xsecweb.com.