For all the problems on this assignment: • Assume concrete with a compressive strength of fi'=...
Select reinforcement for the T-beams in the simply-supported floor system shown below. The system is 26-foot-long and subjected to its own self-weight and a service live load of 200 psf. Take the compressive strength of the concrete to be fe' = 3 ksi and the yield stress of the rebar to be fy = 60 ksi. Show a sketch of the designed cross-section, including beam dimensions and reinforcement selection. Limit your reinforcement selection to one that incorporates a single layer...
Assume normal concrete weight (wc = 143 lb/ft) with specified compressive strength fc = 4,000 psi, and steel Grade 60 (fy = 60,000 psi). For design loads assume dead load wd = 30 lb/ft? (excluding self-weight) and live load we = 100 lb/ft. Finally assume that the steel percentage ratio is equal to p= 0.18fc/fy. Design an interior one-way simply supported slab with a 15 ft span using the above assumptions. Show sketches of one-way slab cross section, including reinforcing...
Problem 3 Assume normal concrete weight (wc = 143 lb/ft) with specified compressive strength fc = 4,000 psi, and steel Grade 60 (fy = 60,000 psi). For design loads assume dead load wd = 30 lb/ft? (excluding self-weight) and live load wų = 100 lb/ft. Finally assume that the steel percentage ratio is equal to p= 0.18fc'/fy. Design an interior one-way simply supported slab with a 15 ft span using the above assumptions. Show sketches of one-way slab cross section,...
*please solve ALL questions Assume that the floor between Beams B7 and B8 is supported directly by these two beams only (not by Girders G2 and G3). Beam B7 has a self-weight of 30 plf. The floor slab consists of a 4-in.-thick, normal-weight, reinforced concrete slab (unit weight = 150 pcf). An additional floor dead load of 15 psf is specified to account for the weight of suspended utilities and fixtures. As an exterior beam, B7 must also support one...
Example CVEG 4303: Reinforced Concrete I One-Way Slabs A 5" thick concrete slab is reinforced for tension with #4 bars spaced at 7". The effective depth is 4" Grade 60 bars and 8,ooo psi concrete will be used. 1.) Determine the design bending strength (фМп) of the slab. 2.) Check that ACI requirements for rebar strain, rebar spacing, and minimum reinforcement are met (ACI 7.3.3.1, ACI 24.3.2, and ACI 7.6.1.1 respectively). Note: Do not need to check temperature and shrinkage...
Could you please help me on question 7. Thank you very much. The floor system shown below consists of normalweight concrete (150 pcf). Beams C2 ! LT 1 7.0 inch ! h=20 in G2! 12 in Girders BI 1 7.0 inch Slab 8 ft span h 24 in ----- - -- - --- 15 in 15 ft 15 ft Use 4000 psi concrete and Gr. 60 reinforcing steel. Assume 0.75 inch clear cover. Include concrete self-weight and a superimposed dead...
A one-way solid concrete slab is to be used for a simple span of 16 ft. In addition to its own weight, the slab carries a superimposed dead load of 20 psf and a live load of 90 psf. Design the slab for minimum thickness if ƒy is 40 ksi, and ƒ’c is 3 ksi 9 in 8 in 6 in 7.6 in
1.) Select the lightest W beam to support the following loads 4 in. concrete slab 15 ft 40 psf dead load 15 ft 100 psf live load Fy- 50 ksi 35 ft 15 ft Wu 35 ft 1.) Select the lightest W beam to support the following loads 4 in. concrete slab 15 ft 40 psf dead load 15 ft 100 psf live load Fy- 50 ksi 35 ft 15 ft Wu 35 ft
1) [Design] A reinforced concrete column is to be sized to carry pure axial compressive load. According to ACI 318, what is the smallest possible cross-sectional area (Ag) that the column can use in design supporting an axial dead load of 200 kips (unfactored) and live load of 400 kips (unfactored). Use fc = 4,000 psi and fy = 60 ksi. Assume pe = 0.08 and ties for transverse reinforcement. Be sure to include the appropriate design factors and use...
is the second floor of a four-story building. a flat Consider the floor framing plan shown below. Thi The design floor live load is 90 psf. The design roof live load is 20 psf. The structure has roof G1 G4 /2 G2 GS 2o G3 FLOOR FRAMING PLAN Assume that the floor between Beams B7 and B8 is supported directly by these two beams only (not by Girders G2 and G3). Beam B7 has a self-weight of 30 plf. The...