SAP2000 section cut may provide the resultant moment for a simple salb. But it fails to display the resultant or the figure when the cut is through shell elements of complex geometry for example a wall of a oval-shape shaft.
Also the resultant is difficult to understand.
From the shell...
so we have done the shell anyalyses and obtained all the internal force resultants M11, M22, M12, V13, V23, F11 etc
How to proceed to design the shell slab, wall orll-beam in accordance with the design codes like BS8110 etc?
I found there is a gap between the design codes and shell analyses...
In SAFE ver 7.01, the wall reactions can only be shown in tabular table and the wall reactions are in Global Axix direction. These are inconvient.
Can the wall reactions be shown in graphic output and in local wall axis? How?
Why I ask such a question? A circular slab is supported by circular...
I am looking for guidlines on how to design the RC shells with SAP2000 shell element analyses output forces.
It is noted that the resultant forces (M11, M22,M12, V11, V22, F11, F22 etc) from SAP analyses cannot be used directly for RC design in accordance with the design codes.
In another software SpaceGass, compression-only members uses an iterative analysis method, SPACE GASS puts it into a slightly different category to the other non-linear effects and makes it available in either a linear or a non-linear static analysis.
During the iterations SPACE GASS disables...
It depends on the connection details between the shelF and the wall. Without knowing the details, the Gap cannot be defined.
Gap is a compression only spring, and SAP2000 provides an option to allow you to control when it come into functin by defining a real seperation (gap) between the Gap...
the following lecture notes explin all about designing shell/plate structures based on FEA results:
www.gtstrudl.gatech.edu/gtstrudl_new/GTSTRUDL_Users_Group_Newsletter/Presentations/2003/GTSUG2003_Tips&Techniques.ppt
Thanks
We are using SAP2000 nonlinear version 8.1.2.
I still don't understand why the design moment is the sum of M11 and M12.
How about the following:
the reinforcement bars are arranged parallel to local 1-axis and 2-axis, do we still are add M12?
I still don't understand the twisting moment...
Does anyone have the Chapter 26 (as refered in help file) Manual discussing section cuts? Where can i get a copy?
For design moments, can we simply add up M11+|M12| from M11 and M12 resultant diagrams?
Could zer or someone help.
ugoveri (Structural) 2 Nov 04 13:29
When drawing section cuts...
I am designing a circular slab (with numerous openings, of course) fix-supported on a cylinder shaft.
At the slab-wall interface, I am confused which shear force (V13, V23, Vmax or combination of V13 and V23) should be used for design. Anyone can calrify? (the slab thickness cannot be changed...
I am studying shells elements and need your help. How to design a beam with the SAP's shell element outputs, F11, F22 etc? see http://home.i-cable.com/jacky.yau/BeamDesignbyShell.tif
The model:
12m span
1m x 1m x 0.6m thick shells
area loads = uniform 100 kPa (global gravity)
fixed at coners...
The case: A circular shaft subjects to underground water pressure (assumed uniform at a certain depth).
Model: Plan circular shaft model with frame elements radial at 10 degrees (i.e. 36 elements total). The elemets are load with the uniform water pressure normal to the elements. No supports...
When I define many load combinations (over 10 combinations), there is an error that "SAP 2000 is running out of memory" and the combination already defined cannot be saved!
Under the "Option" menu, we can set the values in memory, m1 and m2. But what are m1 and m2?? (in MB or kB)?
Is there a...
If the backfill is insufficient to counter-act the buoyancy, you design tension anchor to anchor the base slab of the tank.
For the element design of the base slab, perimeter wall and top slab, bear in mind to account all the possible load combinations by the inward underground water and soil...
Would anyone please advise:
How to set the default units in SAP2000 ver Nonlinear 8.1.2 to SI units, such that each time I open a new model the units are by default in SI system, m, kN.. instead of in and kip.
Also the accompanying kit, SAPTemplates.exe, which is good for building arbitrary...
Suppose a floor meshed into 9 by 9 shells each is 1m x 1m and a wall meshed into 6 by 6 shells each is 1.5m x 1.5m.
In SAP2000 Version 8.2, how can the floor/wall interface shells be quickly meshed into a transition zone?
I tried "mesh using seleted joints and on edges" but it did...
Would one please advise how to model the foundation in SAP2000 for the follwing underground station:
The station has a 2m thick base slab with side walls and tensile anchors (underneath the slab between side walls) to resist floatation. The base slab sits directly on hard rock.
Questions:
1...
