Welding spacing for steel member 3

[KAR FUNG]

Dear All,

I need to add steel plate at the existing truss member to strengthening the truss in order to cater additional load.
The new steel plate will be welded to the existing rectangular hollow section (RSH). The existing truss member is 2.5m in length.
60mm welding length only is required to comply with the design.
May I know, any clause in BS 5950 or other standards has mentioned the minimum spacing in-between both weldings instead of welding the whole length of the steel member?

Thanks.

 

[Agent666]

Search 5950 for the term intermittent. That will give you the clauses required for intermittent welding. In particular clause 6.7.2.6 will give you the spacing and end anchorage requirements. Let us know if it's still unclear after reading through the requirements.

 

[Enable]

For Canadian and American codes see this thread:

https://www.eng-tips.com/viewthread.cfm?qid=464122

For a simple design example and additional limiting factor based on plate width / buckling see here:

https://www.bgstructuralengineering.com/BGSCM13/BGSCM008/Design/BGSCM0080602.htm