converting beam parts into single beam

RE: converting beam parts into single beam

Sye — Fri, 13 Jan 2017 19:22:13 GMT

Analytical member segments can only be part of a physical member if these are connected, collinear, have the same cross sectional properties, same material properties & also have the same local axis orientation. Are all of these conditions satisfied for your model? If so, and still the physical members are not being formed as desired, please upload your .std file and let us know one set of member numbers for which this is not working and we will look into it.

RE: converting beam parts into single beam

Parshva Shah — Fri, 13 Jan 2017 06:21:30 GMT

Hi Ktno

I have followed your steps but in this process all members are not connecting with each other. Please see attached image. I have tried by both manually and auto form but same things is happening. What can be possible solution in this case?

Thanks

Parshva

Re: converting beam parts into single beam

ktno — Thu, 10 Jun 2010 10:08:49 GMT

Hi. neepara,

There is a way to massive forming of members in Concrete Design Mode. You will need to prepare necessary preparations to do so. If You are ready, we have to go to

1). Menu \Select \ By Section Property \ ...

2). ToolBars \ Autoform Members ...

In this way you can form a lot of members within a short time.

You have to prepare for having element orientations of the member to be in proper order.

Thanks for ... paying attension.

TNO

Re: converting beam parts into single beam

Sye — Wed, 19 May 2010 22:25:40 GMT

To get displacements and shear/bending diagrams for the entire physical member you need to define physical members consisting of the analysis segments as indicated in one of the posts below. After you perform the analysis you can change your cursor to the physical member cursor and double click on the physical member and the query box should display the results for the physical member as a whole as opposed to the individual analysis segments.

Re: converting beam parts into single beam

Rharting — Tue, 18 May 2010 23:40:23 GMT

This may be a general question, but i'm not sure I agree with the comment "limitations of such programs".

In Staad you have all the information along the length of all of the beams (column to column) seperated into segments. Why doesn't Staad simply combing each segment (similar to the physical member in steel design) and show you shear and moment diagrams along the full beam? This would provide a much more realistic way to check for modeling errors and verify designs.

Re: converting beam parts into single beam

NIHESH.N — Thu, 16 Apr 2009 17:12:05 GMT

I would also like to mention the following.

STAAD is a mathematical modeling program. The problem you describe is one of the limitations of such programs which are meant for modeling general purpose structures.

A very simple way to get around this limitation is to specify the following sequence of commands

SELECT MEMBER list
GROUP MEMBER list
PERFORM ANALYSIS
CHECK CODE list

This method is illustrated in Example 1 in the American Examples manual.

Alternatively, if the type of work you do is mostly building type, or has numerous physical members, you ought to look into programs like RAM Structural which are geared to handle physical members from the modeling phase through the final design phase

Re: converting beam parts into single beam

NIHESH.N — Thu, 16 Apr 2009 17:01:25 GMT

have you tried the auto form member option in the steel designer module? I believe that will reduce the time taken to form physical members to a large extent.

Re: converting beam parts into single beam

napeera — Thu, 16 Apr 2009 16:49:10 GMT

THANKS FOR THE REPLY ATILO,

As I said Using Physical member is a tedious process, and also while designing it does not design as full beam as in ETABS.

Any other suggestions.

napeera

Re: converting beam parts into single beam

Atilio Andrade — Tue, 14 Apr 2009 20:16:15 GMT

You can form physical members while modeling , or you can use the master slave option to simulate a slab and avoiding in this way to part the beam in multiple members.