This is the volume elements in Lusas. I want to add supoports on the 4 dots in the screenshot. These 4 dots are located where nodes of the volume elements are located too.
How to achieve this?
You will get shear force of the section by integrating the shear stress of the cross sectional area
and you won't get moment.
If you want to get moment, you need to get shear force (diagram) along the member first, then you get moment diagram along the memeber by integrating shear forces...
There are 53 post-tensioned tendons in the superstructure. All the tendons have the same material, jacking force and losses, but with different geometry profiles.
All the tendons are paralle to the XZ plane. Tendon 1 and 53 are symmetrical about the XZ plane, then Tendon 2 and 52, then Tendon 2...
It's a two span bridge structure modelled by shell elements. The structure itself, boundary conditions are symmetrical about the bridge axis. But the vertical deformation under self-weight is unsymmetrical.
I seperate the model into two sub-models, one for superstructure and the other for...
Sofistik FEA is very powerful for analyzing almost any types of structure.
Sofistik Infrastructure is a revit plugin for bridge geometry modeling.
Allplan Bridge is rebraned RM Bridge, which is a very powerful bridge analysis and design software, but the current Allplan Bridge has only part of...
This is from "An Introduction to Geotechnical Engineering (3e)" by Robert Holtz etc
I add "B" and "C" in the above figure. The "u0" is not the excess pore pressure, it's the background pressure which ensure the 100% saturation for the soil specimen.
This is what I'm understanding
When the pore...
The APDL basically models a grid (space truss) structure,
and tries to optimize the section dimention of the truss to get minimum weight while maintaining the proper stress.
When running /OPT in APDL, it shows Error: "There are too many levels of *Do"
The OPT part is as follows
/OPT...
As you can see, if I use Automatic meshing option,
There are 4 divisions along Z dir.
If I want to change it to 2 divisions along Z dir,
There are errors
How to change the divisions from 4 to 2 along Z dir?
The model (v19.1) is attached...
In most cases the Hexahedron Dominant Meshing will include Hexahedron, Pentahedron, Pyramid and Tetrahedron elements.
I want to
generate the Hexahedron Dominant Meshing with Hexahedron and Tetrahedron only.
or
convert the Hexahedron Dominant Meshing into a new mesh with Hexahedron and...
Ansys 2022 R1 Mechanical （Workbench）can be launched
But Mechanical APDL shows lots of errors:
"无法定位程序输入点" means ""Procedure Entry Point Could Not Be Located""
"动态链接库" means "dynamic link library"
The 1st photo shows a 2-span continuous truss bridge.
The 2nd photo shows a 2 simply-supported truss bridge.
The span of continuous bridge generally is larger than simply-supported truss bridge.
For shor span bridge, simply-supported bridge is easy to built and costs less.
Sofistik is the most powerful parametric modeling, analysis and design software.
It can handel buidling, bridge, tunnel, cable, membrane, almost any structure.
It can also handle 2D geotecnical problem.
NO rival.
Midas Gen for Building and Midas Civil for Bridge are also very powerful.
Findings:
1. Sofistik and RM Bridge have very similar results of internal forces in all the stages,
2. Midas Civil has very similar results of internal forces as those from Sofistik and RM Bridge in all the stages except the last stage.
3. The stress results from Sofistik and RM Bridge are very...
