New Products
Engineer's Studio(R) 2D Ver.2 Ver.up
Software for in plane 2D frame analysis
Price : US$2,100 /Free version up Release schedule : April 2011 Structural Analysis / Section Analysis
Engineer's Studio(R) 2D supports 2D in plane structural analysis. It is a reduced version of the Engineer's StudioR 3D product. This revised version includes three new features : 1. Input of cross-section shapes. 2. Section design checks. 3. Moving load influence line analysis for the railway design codes of Japan, in particular the train load "E load" type. Items 1 and 2 are chargeable upgrades and item 3 is covered by maintenance contracts.
Input of section form
In the previous version, the section geometry was not entered. Just numerical section properties sufficient for the analysis were input. (e.g. area A and second moment of inertia I). In this version, these properties can be calculated automatically from the input geometry. Various common section types are supported including rectangle, oval (lateral), oval (longitudinal), circular, I beam, T beam, double T beam, box beam, and a hollow circular beam (Figure 1). The cover and effective height for common reinforcing patterns for each section type can be input (Figure 2).
The graphical view of the model optionally shows the 3D solid models create by extruding the section geometry along the beam. This is useful for verification of input (Figure 3). In addition, the self weight of the structure can optionally be calculated from the section geometry and material properties and applied as an automatic load case.

Figure1 : Section geometry types

Click the image for a larger picture.
Click the image for a larger picture.
Figure2 : Input of section geometry and reinforcement Figure3 : Frame model structure diagram and solid model display

Section design checks.
A section design check feature is available for reinforced concrete sections as an option in this version. The checks include shear capacity, minimum reinforcing, allowable bending stresses, ultimate moment capacity and average shear stress in accordance with the Japan specification for highway bridges. 2D in plane analysis is used and as such all design checks are uniaxial in their nature. The uniaxial nature simplifies the user input and printed reports compared to the biaxial checks done in the full 3D analysis program. (Figure 4).
The calculated stress values etc are normalized by permitted values as per the code and a quick overview for all checks is available on the result form.
If the normalized ratio exceeds 1.0, it is shown in red as NG. Sorting by the normalized ratio is supported to quickly identify critical areas of your structure. (Figure5).

Click the image for a larger picture. Click the image for a larger picture.
Figure4 : Input form for section calculations Figure5 : Section calculation results summary

Moving load influence line analysis for railways.
Engineer's Studio 2D supports a live load influence line analysis feature as an option. This calculation supports moving groups of point loads (axles) in conjunction with a trailing uniformly distributed load. This permits modeling of the train live load "E load" type in Japan codes. (Figure 6).
Click the image for a larger picture.
Figure6 : Train load (E load type) and influence line
(Up&Coming 2011 Early Spring Issue)
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