My boss wants me to design a utility trestle that supports several large utility pipes in between buildings on site. I have no idea what typical design/build practices there are for this type of structure. He wants a modular design with 18' sections and catwalks on either side so that the workers can stand while joining the pipes. He also seems to think that the only way to get the pipes within the trestle, is to lift sections and slide them in through the side. Does this seem typical? I know I've seen trestles at facilities with triangular supports along the sides. How do they fit the pipes in? Also, a steel trestle made of 18' sections sounds pretty heavy. Does this design sound practical at all?
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