When designing rigid frame bridge bents, is it appropriate to account for substructure member length changes (bent cap) due to temperature and shrinkage? RCPier allows you to input strain loads to model temperature and shrinkage effects of the bent. When the bent cap gets shorter in length due...
I have a question about designing intermediate diaphragms when there are differential deflections of adjacent steel girders. Typically, intermedate diaphragms are designed to transfer wind loads and to meet all applicable slenderness and minimum material thickness requirements. This is...
I'm designing a single span bridge with elastomeric bearings. End bent 1 is higher in elevation than end bent 2. Which end bent should use expansion bearings and which end bent should use fixed bearings? I think I remember reading that there was an advantage to using fixed bearings at the...
I have a question about elastomeric bearing rotations. I'm designing steel reinforced elastomeric bearings for a single span steel railroad bridge (transit). I'm using AREMA and AASHTO Standard Specifications to check the rotation requirements. Do I need to check bearing rotations during...
