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?
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...
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 arch has 96m in span and 19.2m in rise. It has pin support at both ends and is made of steel and concrete.
It has 3 Construction Stages
1. field installation of steel tube
2. put concrete in the bottom steel tube
3. put concrete in the top steel tube
We use Midas Civil, RM Bridge (TDV)...
I made a simple cantilever column, the cross section has eccentricity.
I would expect moment along the column due to the eccentricity, but Lusas result shows zero moment.
I use Sofistik to analyis a composite beam with tendon.
I have 2 beams that only cross sections are different, one is solid section, the other one is hollow section. Both beams have steel parts (4 legs), concrete and tendon.
Solid section
Hollow section
There are 4 construction stages
CS NO...
I get reaction from dead load is 9406+1663 kN, max reaction from moving load is 846 kN. The load factor 1.2 for dead load and 1.4 for live load.
The max reaction shall be 1.2*(9406+1663)+1.4*864=14492 kN.
In CSiBrdge 23.3, the reaction from Envelope Comb is 11287 kN, while that in Linear Add...
For precast concrete deck slabs, they are transversly connected by the shear keys, and there are no prestress bars in the transverse direction of the deck slab.
Is the membrane action needd to be considered in FEA Modeling?
I have 2 load cases, G for permenet load, and Q for variable load.
Both load cases act on the structure at the same time.
I want to do a linear buckling analysis to get the buckling load = 1.0*G + buckling factor * Q,
How to achieve this in Sap2000?
As for concrete slab, either floor slab in buildngs or deck slab in bridges,
Sap2000 and CSibridge provides two options: plate and shell
Which option is more reasonable to model floor slab and deck slab under vertical load?
When defining vehicle axle load in CSiBridge / Sap2000, the axle load is input as point load.
But you can't assign point load to bridge deck (shell/plate) in CSiBridge / Sap2000.
So how this load is applied on the bridge deck in CSiBridge?
When defining vehicle load in CSiBridge / Sap2000, the axle load is input as point load.
I want to manully put the point load on the deck
But I can't assign point load to bridge deck (shell/plate) in CSiBridge / Sap2000.
So how this load is applied on the bridge deck in CSiBridge?
Anyone here has experence with Sofistik? Very powerful structural analysis and design software.
In the Wingraf manual from p3-142 to p3-143, it supports the following stress output for beam element
and
I made a simple cantilever beam in glabal X direction, and apply unit point force at its...
