Cross-section analysis of rein

Beams or columns of any shape, any materials, and any loading. Either metric or inch-pound units Facilities for prestressing and staged or composite construction are included. An innovative beam or column 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 no curbs on the input to ensure it is within the realm of established technology. The full universal nature is available. 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. This application will accept any shape of the cross-section, any arrangement of reinforcing and any shape for the stress/strain relationships of each material. Further, 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 the established method. The cross-section shape is input as a sequence of X,Y coordinates for each corner and the location of each reinforcing bar. Stress/strain relationships are input as a sequence of stress, strain coordinates; the relationship being linear between those defined points. This material description facility is completely general. Nevertheless there are also facilities that will automatically generate material descriptions that are in accordance with various mainstream design codes such as ACI-318 and Eurocode 2. These require input values for specific parameters defined in the relevant code. The application is intended for any Android smart phone, although some features do not work on all these devices. There are facilities to transfer data between the phone and a computer that do not work on all devices. They do work on some devices such as the Samsung Galaxy model MS-J250G. The application writes and reads files that each contain a complete description of one cross-section. These are simple text files although they are intended to be read only by the application. With some devices they can be transferred to and from an Apple Mac or a PC. Also they are compatible with the xsec application on those other devices. Nevertheless the use of this application (Android phone xsec) does not require any other device: it can be completely stand alone. There is a comprehensive user guide and some worked examples on the internet at xsecweb.com.