Retired13,
Bottom chord bracing are to brace the bottom chord purlins. Is there any other way to restrain the bottom chord movement during a lateral load?. Please advise.
dik,
Actually, Now I tried the same span without truss, with beam frames. It is giving lesser weight than Truss...
Dear all,
Thanks for your suggestions. Hope I understand your points. I modified the model. Hope this has still some modifications. kindly enlighten me. I am new to this building designs. https://files.engineering.com/getfile.aspx?folder=ea8c80f8-9b23-449d-9e0a-ac38f1d89e84&file=model_2.JPG
@StrctPono, Purlins will do the job of bracing at the top chord and in order to brace the bottom chord, the struts are provided. Thanks.
@MIStructE Pal, Could you please be elaborate on what ways it could be unstable. Kindly help.
Thanks for your response pal.
The end connection is moment resisting connection. I will increase the depth of truss at the ends. The model shown is preliminary.
with the across bracing at the end bay will help to reduce the minor axis bending??
Thanks in advance.
Dear All,
I am designing a roof truss 16m span, a howe truss for a pre engineered building. (Attached Model image) In seismic analysis, I am getting a minor axis moment which is governing my top and bottom chord design. I already braced the budling. Kindly enlighten me to get rid of these minor...
