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SAM is particularly good for line beam analysis. Back 2D and 3D Analysis SAM provides scope for 2D and 3D framework and finite element analysis through the same graphical user interface utilized for section and girder design. This enables seamless integration of the analysis and design modules. 
A wide range of bridge decks and substructures can be modeled using; line girders, plane frames, grillages, space frames, shell finite elements and combined girder and finite elements for composite construction. Typical examples include; solid and voided slabs, composite girder and slab, box girders and cable stayed bridges. The graphical drawing tools provided enables the easy creation of bridge decks and substructures. A facility to import structure geometry data from third party Computer Aided Design (CAD) software is also included. Sections and girders can be defined and associated with the analysis model, so that the program automatically calculates the section properties used in the analysis. A comprehensive range of advanced modeling tools is available. Some of these include; thin shell finite elements, non-linear facilities for tension/compression only members, lift-off supports, member limiting forces (e.g. plastic hinges), support reaction limits (friction modeling), and visual staged construction analysis. Cables for post tensioning can be modelled in 3D and all their losses calculated. The secondary effects due to the post tensioning forces can be calculated. This means that SAM can be used for the analysis of cast in place post tensioned girders. 
The general loading library provides scope for representing a variety of permanent loads and live loads. Some of these include; joint loads, member point loads, uniformly distributed loads, linearly varying loads, hydrostatic loads, patch area loads, temperature loads, pre-stress loading, distortion loads, and customizable vehicular loads. Intelligent routines are available for the creation of load combinations and envelopes. Flexible and comprehensive reporting of input data and results output both graphically and in tabular format is available. The resulting design load effects, e.g. maximum moments and associated shears, can be transferred directly to the girder design modules for code checking. SAM has a unique feature called "Composite Results" which makes it easy to obtain results from complex finite element models such as box girders, as well as having a host of other useful functions, such as smoothing out the anomalous peaks in shear near supports. For more details please see our page on good modeling techniques. Back 
For HL-93 live load optimization, please see
above. The advanced 3D live load optimizer enables the analysis of multiple influence load positions, in order to determine the most critical combination of basic loading patterns. The program automatically produces the critical vehicle positions, intensities and combinations, taking into account LRFD's multi-presence factors. This process takes a fraction of the time compared with conventional load enveloping methods. A summary of the available analysis modules is shown below. If you require any further information, please fill in an on-line request here or contact Bestech Systems direct.
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