A hall is covered by a beam and slab systemwith beams placed at 3.0 m centers. Theeffective span of the beam is 8.35 m. thethickness of the slab is 120 mm. The size ofthe beam below the slab is 230 mm width and380 mm depth. The beam is reinforced withtwo numbers of 32 mm diameter steel rods ofgrade 415 N/mm2. Compute the Maximumtotal load/m run, the beam can carry, includingits own weight at service stage. Grade ofconcrete is M 25.

Answered: Image /qna-images/answer/52836e10-e247-426e-bb57-a16d6fe3c764.jpg

A hall is covered by a beam and slab system with beams placed at 3.0 m centers. The effective span of the beam is 8.35 m. the thickness of the slab is 120 mm. The size of the beam below the slab is 230 mm width and

A hall is covered by a beam and slab system with beams placed at 3.0 m centers. The effective span of the beam is 8.35 m. the thickness of the slab is 120 mm. The size of the beam below the slab is 230 mm width and

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A rectangular beam 250 mm wide, 500 mm deep is reinforced at the bottom with 4-20-mm-diameter bars and at the top with 2-16-mm bars. bottom is 70 mm. Use concrete strength f'c = 21 MPa and steel yield strength fy = 345 MPa for 20-mm bars and fy = 230 MPa for 16-mm bars. Determine the design moment capacity in kN-m of the beam Concrete cover to bar centroid at the top is 80 mm and at the in negative bending. Write the answer in 2 decimal places only.
The reinforced concrete beam shown has a width of 400 mm and a total depth of 610 mm. It is loaded with a super imposed dead of 25 kN/m, and live load of 12 kN/m. Pdl =60kN and Pll = 40kN There are 3-25mm diameter bars arranged in a single layer at the bottom of the beam, with a clear covering of 50 mm. Another 2 -20 mm diameter bars are located at the top of the beam with the same clear covering. Determine the critical spacing of 10mm diameter stirrups. Use f = 28MPa, fy = 420 MPa, fyt = 275 MPa. P in KN P in KN w in kN/m Steel I Generic 7.0 m 2.0 m 5.0 m
A prestressed concrete beam of section 250 mm wide by 600 mm deep is used over an effective span of 10 m to support an imposed load of 8 kN/m. If the unit weight of concrete is 25 kN/m³, find the magnitude of: (a) the concentric prestressing force necessary for zero stress at the bottom fibre at the midspan section when the beam is fully loaded. (b) the eccentric prestressing force of the tendon located at 200 mm from the soffit of the beam that would nullify the flexural stress due to the combined dead and imposed load. (c) Discuss the implication of the results in (a) and (b) above.
The floor of a wholesale store building is made of 100 mm thick cinder concrete. If the floor is a slab having a length of 3m and width of 2.5m, determine the resultant force in kN caused by the dead load and the live load.
A prestressed beam of a certain condominium was designed to have a rectangular section 300mm x 600mm deepand has a simple span of 9m. At the midspan section, the tendons are placed at 200mm above the soffit whichcarries an initial prestressing force of 1,110KN which ultimately relaxes to 880 KN. If the allowable stress inconcrete in compression is 13.5 MPa and in tension is 1.4MPa, determine the safe moment it could carry and thesuperimposed live load that it could also carry. Assume concrete will not crack in tension.
6.64 Two beams carrying identical loads, simply supported, are having same depth but beam A has double the width as compared to that of beam B. The ratio of the strength of beam A to that of heam B is
2. A reinforced concrete beam having a width of 280 mm and a total depth of 600 mm is reinforced for tension at the bottom with 6 - 36 mmɸ bars placed on two layers, 4 bars on first layer and 2 bars on second layer. Compute the effective depth of the beam and the clear horizontal spacing between bars.
A one way slab has a total depth of 200mm with a 20mm clear cover at the bottom. The steel reinforcement is 20 mm diameter spaced at 125mm on centers. Use f'c = 30 MPa and fy = 400 MPa. 1) Determine the depth of the stress block for a strip of slab. 2) Determine the moment capacity of the strip of slab. 3) Determine the live load per sq.m. that the slab can carry if the slab were used on a 3m simple span. Concrete mass maybe taken at 2500 kg/m³ which includes the weight of reinforcement. Use 2015 NSCP. SDL can be taken as 12 kPa/m.
A 250mm x 600mm 10m-simple span prestressed concrete beam has a uniformly distributed dead load of 8.50 kN/m in addition to its weight. The tendons are placed 100mm from the bottom of the beam and is subjected to initial prestress force of 1880 kN. The beam is used to carry a live load of 25 kN/m. If the unit weight of concrete is 24 kN/m3, determine the stress at the bottom fiber of the beam at midpan after 20% of the losses at its final stage CS Scanned with CamScanner
Concrete overhang beam is to support the concrete slab w/ tributary width 2.70 m. The beam also supports a 3.20 m height of 100 mm thick portion wallunit weight of concrete = 2.4 kN/m³ Determine the maximum fiber Stresses (in tension and compression) developed in the beam due to the dead loads.