My company is working on a pedestrian bridge project that has a strong aesthetic influence. Due to this and other design requirements, the web of the built up girder will not be centered on the flanges. Also, the top flange will be wider than the bottom flange. Can someone give any guidance...
Be aware that the use of fly ash can be very helpful in mass pours to keep the maximum temperature of the concrete down while curing. In a mass pour mixes with 25% fly ash or more can be used.
I agree with BAretired. Rotate the vertical 90 degrees and weld it directly to the chord. The gusset plate will only be needed for the diagonal and should simplify the connection. The out of plane bending of the truss is largely controlled by the width of the truss and not the section...
Thank you for the responses. It is good to have confirmation that I was applying the code correctly in regards to unbalanced snow load in my review. We are planning on using an EPDM membrane on the roof and will use crickets where necessary.
I am reviewing the design for a structure with a slight inverted pitch (2.385 degrees) to the center. The width of the building is 294 feet. I am concerned about snow accumulation in the valley (6'-4" height difference). Since the slope is inverted, I am not sure the flat roof provision (less...
