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A Beginner's Guide to ASCE 7-05 Chapter 3 - D: Dead Loads © 2007, T. Bartlett Quimby |
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Section 3.3 Homework Problems Last Revised: 11/04/2014 The homework problems reference the BGSE drawing sets. Problems M3.1: For the roof system shown in MISCDET_STL S6.1, the building width is 30 ft, the beams are W14x22 @ 6'-0" O.C., the reinforced concrete slab is 4" thick, and the roofing consists of a built-up system that includes 4" of rigid insulation and a membrane over the insulation. A light weight suspended ceiling hangs from the roof system.
Dormitory Building Design Problems Problem D3.1: On the second and third floor framing plan (DORM S1) you will notice several regions that have beams in a repetitive pattern. These beams are referred to as joists. The floor plan has four different joist specifications: J201, J202, J203, and J204. The table below has some semi-randomly chosen sizes (i.e. they have not be designed yet, so these are just a guess!). Assume that the floor slab is covered by an industrial carpet. Interior walls are not likely to be rearranged over the life of the building and weigh approximately 10 lbs per square foot of surface area. An acoustic suspended ceiling is hung from the floor above in each space. The ceiling spaces over corridors are likely to see significant piping and wiring.
Complete the above by computing the unit DL for each area supported by the indicated joist. Include a neatly drawn sketch of the a typical floor section in your computations. Problem D3.2: On the roof framing plan (DORM S2) you will notice several regions that have beams in a repetitive pattern. These beams are referred to as joists. The floor plan has four different joist specifications: J201, J202, J203, and J204. The table below has some semi-randomly chosen sizes (i.e. they have not be designed yet, so these are just a guess!). Assume that the roof slab is 4" thick and is covered by 6 inches of rigid insulation, a waterproof membrane and 1" thick concrete pavers. An acoustic suspended ceiling is hung from the floor above in each space. The ceiling spaces over corridors are likely to see significant piping and wiring.
Complete the above by computing the unit DL for each area supported by the indicated joist. Include a neatly drawn sketch of the a typical floor section in your computations. Problem H3.1: Determine the average unit dead load for:
Problem H3.2: Determine the average unit dead load for:
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