Question

Using the Letter R so Dead load is 160 and Live load is 50

by 120 floor Design Problem: 150 girders Floor System: oor (Design for Bending onl nding only.ust beams and 120'x 150', Columns on a 30 Grid 1) 2) Girders span from Column to column in the 150 foot direction 3) Beams span between girders 4) Concrete floor spans across beams Loading: See table on following page Elements/Materials: 1) Beams: S-Shape a. Use same beam throughout b. No deeper than S12 (to limit floor thickness) c. Spacing must be S6' and a factor of 30' (i.e. 2", 3, 5, 6) d. Select spacing and S-beam that result in the least amount of total steel 2) Girders: W-shape a. b. c. Use same girder throughout Select lightest possible member Approximate load on girder as a distributed load (rather using multiple point loads from the s-beams) 3) Material: Steel b. F.S.-1.67 4) Expectations Clear presentation of your design. I should be able to see very quickly what you final design is (beams, beam spacing, girders) a. b. Clear calculations. A third party should be able to review your work in a minimal amount of time, and see the method/calculations that led to your final design. Longer does not necessarily mean better. Clearer always means better c. 5) Grading This problem will be weighted as one whole HW assignment (i.e. like the full problem sets that are turned in on Mondays) One third of the grade will be based on clarity/neatness. The other two thirds will be based on technical correctness a. b. First Letter of Last Name Dead (pf Live Load (psf) 75 95 100 105 110 115 120 125 130 135 140 145 150 155 160 165 170 175 180 185 190 195 200 Lecture 50

Answer 1

Solution:-

づ.wlz.

stop-3 3D Ner49, substitute: ik Fau-D; Folt (kei) ろ

→ .8 (8x18-5) เง!" Alǐ din闣41.fm wく PYn xj 31570 -3.758 3758) 30

鲫-3 Iilt SI午4'-