Steel Truss-Chord Splicing Location
Steel Truss-Chord Splicing Location
(OP)
Hello All,
I'd be grateful if you share some ideas regarding the best locations to introduce splice for bottom and top chord of a steel truss.
Many hanks,
I'd be grateful if you share some ideas regarding the best locations to introduce splice for bottom and top chord of a steel truss.
Many hanks,






RE: Steel Truss-Chord Splicing Location
RE: Steel Truss-Chord Splicing Location
RE: Steel Truss-Chord Splicing Location
On a triangular shaped truss - nearer the middle. One a flat truss - nearer the ends - USUALLY... Any moments on these sections??
RE: Steel Truss-Chord Splicing Location
@a2mfk:
so you think, I should put them near the end of each panel(say less than a foot)?
@MiketheEngineer-:
yes, the top chord is loaded (unifromly), so there ould be bendng moment on top chord member, so I presume I need to get it closer the area with less moment? what do u think?
RE: Steel Truss-Chord Splicing Location
RE: Steel Truss-Chord Splicing Location
RE: Steel Truss-Chord Splicing Location
RE: Steel Truss-Chord Splicing Location
I have seen many large mill bldg trusses spliced very near the center. I have designed some trusses 80'-100' with no splices except for full pen welds.
RE: Steel Truss-Chord Splicing Location
That's still a splice, and I like them to be other than at maximum force locations. As for compression in the bottom chord, wind uplift generally controls in areas where cyclonic wind rather than snow is the primary consideration.
RE: Steel Truss-Chord Splicing Location
touche
touche
I guess one should also not ignore the importance of tension chord bracing.
I believe Fisher wrote a paper on the subject some years ago
RE: Steel Truss-Chord Splicing Location
RE: Steel Truss-Chord Splicing Location
RE: Steel Truss-Chord Splicing Location
I know it is, but, in my case, all the steel truss I have designed were for mill buildings or similar. Bottom chord bracing is a must anyway.
RE: Steel Truss-Chord Splicing Location
RE: Steel Truss-Chord Splicing Location
RE: Steel Truss-Chord Splicing Location
My point was, I needed bottom chord bracing for other reasons.
In mill buildings, bottom chord bracing acts as horizontal truss to distribute crane forces between several bents.
RE: Steel Truss-Chord Splicing Location
Splicing at midspan means handling only two pieces and for long spans, is usually more economical than quarter or third point splicing.
BA
RE: Steel Truss-Chord Splicing Location