A reinforced concrete building floor system consists of a continuous two-way slab built monolithically with its...
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A reinforced concrete building floor system consists of a continuous two-way slab built monolithically with its supporting beams as shown in Fig. (1). Service live load will be 4.8 kN/m². Dead load (including self- weight) will be 8.6 kN/m². There are also masonry walls above all beams weight 22 kN/m. Prepare a design for the members and summarize your results in the form of sketches showing all concrete dimensions and reinforcement. Use effective depth for beams d = 537.5 mm, f. = 21 MPa for beams and slabs and f. = 28 MPa for columns, f= 420 MPa for longitudinal reinforcement and f350 MPa for transverse reinforcement. [ 24 B-2 All cols 400 mm x 400 mm Panel-A #10 @ 250 mm c to c Panel-A B-1 B-2 3@7m=21m 170 mm 430 mm 2 #25 bars 170 mm F 430 mm Q1 Determine flexural reinforcement required for interior span of beam B-1. In the negative moment region, assume 20% of negative moment resisted by compression reinforcement with d Hint: (Use #25 bar reinforcement and the section is tension controlled). 20 B 하고 PLAN et b-350 mm Section 1-1 b, Q3 For continuous beam B-1, locate flexural cutoff points (/, in Fig. (2)) for positive-moment reinforcement of interior span assuming 2#25 bars will be cut. Hint: Assume the following equation for moment M(x)=- -w₂x² M** 2 where x measured from mid-span of the beam and ww @Mas calculated in Q1 above. b=350 mm Section 2-2 2#25 bars 62.5 mm 20 marks Fig. (2) 15 marks A reinforced concrete building floor system consists of a continuous two-way slab built monolithically with its supporting beams as shown in Fig. (1). Service live load will be 4.8 kN/m². Dead load (including self- weight) will be 8.6 kN/m². There are also masonry walls above all beams weight 22 kN/m. Prepare a design for the members and summarize your results in the form of sketches showing all concrete dimensions and reinforcement. Use effective depth for beams d = 537.5 mm, f. = 21 MPa for beams and slabs and f. = 28 MPa for columns, f= 420 MPa for longitudinal reinforcement and f350 MPa for transverse reinforcement. [ 24 B-2 All cols 400 mm x 400 mm Panel-A #10 @ 250 mm c to c Panel-A B-1 B-2 3@7m=21m 170 mm 430 mm 2 #25 bars 170 mm F 430 mm Q1 Determine flexural reinforcement required for interior span of beam B-1. In the negative moment region, assume 20% of negative moment resisted by compression reinforcement with d Hint: (Use #25 bar reinforcement and the section is tension controlled). 20 B 하고 PLAN et b-350 mm Section 1-1 b, Q3 For continuous beam B-1, locate flexural cutoff points (/, in Fig. (2)) for positive-moment reinforcement of interior span assuming 2#25 bars will be cut. Hint: Assume the following equation for moment M(x)=- -w₂x² M** 2 where x measured from mid-span of the beam and ww @Mas calculated in Q1 above. b=350 mm Section 2-2 2#25 bars 62.5 mm 20 marks Fig. (2) 15 marks
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Whn 24 wl 14 SF Win One Way SEAR 11 Span cfc 16 beam width 18 160 200 2n 1615 145 from ACI deflectio... View the full answer
Related Book For
Intermediate Microeconomics and Its Application
ISBN: 978-1133189039
12th edition
Authors: Walter Nicholson, Christopher M. Snyder
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