Figure 1 Shows The Plan View Of A Two Story Reinforced Concrete Structure That Consists Of Four 3m X 5m Slabs Per Floor 1 (48.68 KiB) Viewed 26 times
Figure 1 Shows The Plan View Of A Two Story Reinforced Concrete Structure That Consists Of Four 3m X 5m Slabs Per Floor 2 (40.23 KiB) Viewed 26 times
Figure 1 Shows The Plan View Of A Two Story Reinforced Concrete Structure That Consists Of Four 3m X 5m Slabs Per Floor 3 (41.14 KiB) Viewed 26 times
Figure 1 shows the plan view of a two-story reinforced concrete structure that consists of four 3m x 5m slabs per floor. The three two-story, two-bay frames of the structure in the y-direction are located at a distance of 3m from center to center, are braced against lateral forces along the y-direction, and support a permanent load, gk = 12kN/m2 (including weight of beams and slabs) and a variable load, ok = 20kN/m2. Figure 2 shows the elevation view of the two-story, two-bay frame under consideration, located in the y-direction, along line bb' of the plan view. The size of all columns is 250mm x 250mm and their effective height has been estimated to be 2.50m. The beams supporting the slabs have a width of 250mm and an overall height of 500mm. The characteristic material strengths of concrete and steel are fck=30N/mm2 and fyk=500 N/mm2, respectively.
Sm Sm 3m 1 1 b 3m i... 1 1 c Figure 1. Plan view of the reinforced concrete structure, 5m 5m 2 floor, 3m A B 1e floor 3m beam 250mm x 50mm beam 250mm x 50mm column 250mmx250mm B Ground floor Figure 2. Elevation view of the two-story, two-bay frame along bb'. a) Design the column BB' of frame bb', that is located at the ground floor, using the design chart for rectangular columns with d'/h=0.20, and with equal reinforcement in compression and tension provided in Figure 3. Note: i) Assume a loading scenario that will cause maximum moments at the columns at joint B. ii) For fixed-end conditions, -W 12 24 1 w RA R w 2 b) Provide schematically the design drawing of the cross section of the column BB', with the longitudinal and shear reinforcements.
1.4 do 4 1.3 بية 20 1.2. 6210 bhfa 1.1 1.0 09 0.8 07 طی | قم | IN . 0.9 % 05 0.6 0.5 Do 0.8 N 0.7 bhfck 0.6 10.44 0.3 02 0.1 0.5 0.8 0.4 BA -0.9 0.3 -K2=1.0 0.2 0.1 0 0.05 0.10 0.15 0.20 0.30 0.35 0.40 0.45 0.50 0.25 M bhalo Figure 3. Design chart of a rectangular RC column.
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