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I did a Google search to see what it looks like. I am also attaching what I got to make sure that we are on the same page. To design something like attached below, you need to have the operating weight of the machine and pipe-stress analysis report that provides you with stress loads at each location where the pipe is located. You need to make sure that the structure is designed for wind drift less than H/200 and seismic drift less than the applicable code. These structures are very common in EPC Industry. Normally, the vendor provides the maximum operating, empty and hydro test weights along with max shears due to wind and seismic. Ask your vendor for this information and proceed with design. Please post your follow up questions. Thanks.

Aoa. IMHO, following are the answers to your questions: A/Q1: You may need to adopt one or more of the following actions: a. increase beam size, b. reduce ties spacing, c. increase diameter of ties, d. use higher yield strength steel for ties A/Q2: You might have used Fixed support on both sides. Try using Hinged support on one side and Pinned support on the other. A/Q3: Required foundation size (area) INCREASES with REDUCTION in soil bearing capacity. For very low bearing capacity, you might have to go for raft footing or piles. In SAFE version 8, you may check two-way shear by using 'Design -> Display punching Shear Ratios' Menu option. A/Q4: Mass is used in dynamic analysis and calculated using formula, m = w / g ; where m is mass, w is weight and g is acceleration due to gravity. A/Q5: 'P-Delta Analysis' is carried out to account for length effects in columns (buckling). On the other hand, 'Dynamic Analysis' is carried out to study the effects of time-varying forces (earthquake etc) on the structure. A/Q6: Concrete compressive strength (f'c) is important for calculating various material properties. On the other hand, strength of concrete depend upon several parameters, like ratio of cement, sand and aggregate; water-cement ratio, age on testing, strength of aggregate, curing method, etc. etc. A/Q7. In SAFE, punching shear results are displayed as a ratio of maximum calculated shear with respect to capacity. A ratio of 1.0 indicates that maximum calculated shear is equal to the maximum capacity of the section. Hope this is helpful.