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I am wondering if it is practical for flat roof by using wood material (ie, Wood truss or 2x12 with 3/4” plywood deck, then applying waterproof material and shingle. Where I am able to find a specification or standard for this type application? Thanks.

I would like to learn more about metal deck roof with waterproof material construction details. I am wondering if some one here can give me suggestions or references. Thanks.

I am working on a beam connection design. According to Steel manual and reference book examples, most of connections are both beams' top flange at same level. I did not find any case with one beam placing on top of another beam. Is it adequate to place one beam on top of another beam if room...

I have a WF beam (W40X324)cambering issues for help. We have a 60-ft span beam and will deflect about 1.5" under dead load. It will be expensive to camber this beam to 1.5". The beam will be under L/240" deflection under total load. Do I need to camber the beam? Any suggestions? Thanks.

I have some questions and need helps: 1. How to weld the horizontal bracing to bar joist top and bottom chords. I saw a lot of connection using bolt. But we think welding is easer than bolting (it is diffcult to make correct hole location on bracing angle). 2. We are going to construct a flat...

We are going to construct a reinforced concrete continue beam. Since the long span and loads, the beam is heavy reinforced. We concerns that the standard coarse aggregate is difficult to be poured into the beam. We want use small size coarse aggregate. The ready mix company told us that the only...

I will design a building using roof as parking garage. The roof span will be 60-ft. could someone here tell me the following questions: 1. What type materials (steel truss, steel beam or prestress concrete) will be the best fit 60-ft span? 2. What is live load for parking garage? Thanks.

Hi All, I am right now in designing a stage cable system. I am wondering if some professonals here are able to provide me some details on how to apply line loads on structure, or provide some references. Thanks.

I will design a standard olymipc size swiming pool. Could someone please give some reference books for swiming pool design? Thank.

I am going to design a structure using granite material. Could someone provide me some information about the material of granite? Such as bending stress, tension stress, what min. edge distance if drill a hole, etc. Thank you very much. chencfp

I am trying to find a software to calculate Prestressed Concrete Pole Ultimate Moment Capacity. Thank you very much.