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Category Archives: Strand7
Solving the 4 point lift problem …
… with Excel, Python and pyxll. The problem involves the lifting of a precast concrete panel (or any other long thin object) with lifting points at four sections along the length of the panel, and with the load connected to … Continue reading
Posted in Concrete, Coordinate Geometry, Excel, Finite Element Analysis, Frame Analysis, Link to Python, Newton, NumPy and SciPy, PyXLL, Strand7, UDFs
Tagged 4 point lifting, Excel, Non-linear solvers, precast lifting, Python, PyXLL, SciPy, UDFs
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3DFrame-py update
The Python 3DFrame spreadsheet has been updated to allow for analysis including torsional warping effects. The new spreadsheet and associated Python files can be downloaded from: 3DFrame-py.zip The download file includes four sample spreadsheets comparing analysis results with output from … Continue reading
Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Link to Python, Newton, PyXLL, Strand7
Tagged 3DFrame-py, Excel, Frame Analysis, global axes, local axes, MASTAN2, principal axes, Torsional warping
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Mastan2
Mastan2 is a free frame analysis program based on Matlab. The linked site provides alternative downloads for those with or without Matlab installed. The site also provides a link to the book Matrix Structural Analysis, 2nd Edition, by McGuire, Gallagher, … Continue reading
Posted in Beam Bending, Concrete, Excel, Finite Element Analysis, Frame Analysis, Link to Python, Newton, PyXLL, Strand7
Tagged 3DFrame, Excel, Frame Analysis, global axes, local axes, MASTAN2, principal axes, Torsional warping
1 Comment
3DFrame-py
My 3DFrame spreadsheet has now been converted to Python code and can be downloaded from: 3DFrame-py.zip The frame analysis uses the Scipy linear algebra functions called from pyLinalgfuncs3, which must be available on the Python path: pyLinAlgfuncs3.zip The 3DFrame-py download … Continue reading
Posted in Arrays, Excel, Finite Element Analysis, Frame Analysis, Link to Python, Newton, NumPy and SciPy, PyXLL, Strand7, VBA
Tagged 3DFrame-py, Excel, Frame Analysis, Numba, PyPardiso, Python, PyXLL, SciPy
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Secondary moments in prestressed beams with FEA-2
Following the first post in this series, this post compares friction losses in prestressing cables as defined in the Australian Concrete Structures Code (AS 3600), compared with a cable modelled with contact elements in Strand7. The example used is based … Continue reading
Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, Strand7
Tagged contact elements, Excel, FEA, Friction losses, prestressing, sticking friction stiffness, Strand7
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