The rectangular RC members under uniform load, the cross section of the beam is b×h = 250×500 mm. A design value of bending moment M = 100 kNm and a design value of shear force V 90 kN are applied to the beam simultaneously. The concrete strength grade is C30, and HRB400 steel bar is employed for longitudinal bars and stirrups. The environment classification is I. Requirement: determine reinforcement of the member to resist bending moment and %3D shear force.

The rectangular RC members under uniform load, the cross section of the beam is b×h = 250×500 mm. A design value of bending moment M = 100 kNm and a design value of shear force V 90 kN are applied to the beam simultaneously. The concrete strength grade is C30, and HRB400 steel bar is employed for longitudinal bars and stirrups. The environment classification is I. Requirement: determine reinforcement of the member to resist bending moment and %3D shear force.

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter5: Beams

Section: Chapter Questions

Problem 5.14.2P

See similar textbooks

Similar questions

A horizontal tension member is to be constructed of two pieces of plastic glued along the incline pq at an angle of 30 deg with the horizontal. The allowable stresses on the glued joint in tension and shear are 5MPa and 3MPa respectively. Determine the largest load P. Assume that the strength of the glued joint controls the design. The cross-sectional area of the bar is 225 mm². - Need asap pls.
concrete floor slab 100 mm thick is cast monolithic with concrete beam 2.0 m on centers. The beams have a span of 4.2 m and have a web width of 250 mm, and overall depth of 450 mm. The tensile reinforcement consists of 4-25 mm bars in two rows with 25 mm vertical clear spacing. Use material strength f’c = 21 MPa and fy = 415 MPa. Calculate the following considering a T-geometry; a) effective flange width of an interior beam in mm b) depth of uniform stress block at ultimate stage in mm ( round of to nearest whole number) c) tensile steel strain compatible with concrete strain if 0.003 ( round if 3 decimal places)
A reinforced concrete beam has a width of 300 mm and an effective depth of 618 mm. Compressive reinforcement (if required) will be placed at d' = 60 mm. fc' = 28 MPa and fy = 415 MPa. Use 2010 NSCP. The beam is to support a factored bending moment of 600 kN.m. use phi = 0.90 for flexure. Questions 1.1) Calculate the steel ratio for balanced section, (rho bal) 1.2)Determine the theoretical steel ratio required (rho) for the beam to support the given factored moment. * 1.3)Following NSCP requirements, determine the required area for steel reinforcement, As * 1.4)Determine the number of 28 mm diameter bars required as tension reinforcement. *
A concrete floor slab 100 mm thick is cast monolithic with concrete beams 2.0 m on centers. The beams have a span of 4 m and have a web width of 250 mm, an effective depth of 400 mm and overall depth of 500 mm. The tensile reinforcement consists of 6-ϕ32 mm bars in two rows. Use material strengths f’c = 21 MPa and fy = 415 MPa. Calculate the ultimate bending moment strength of the T-beam in kN·m. A. 640 B. 701 C. 778 D. 711
The steel framework shown below is used to support the reinforced concrete slab (unit weight of concrete =23.6KN/m3) that is used for an office use (minimum live load = 2.4KPa). The slab is 150 mm thick. Use a=3m, b=5m. Neglect the self-weight of the beam and girder. Assume all beams and girders have simple supports. NSCP 2015 Load factors: 1.2DL & 1.6LL.
3 A concrete floor slab 100 mm thick is cast monolithic with concrete beams 2.0 m on centers. The beams have a span of 4.0 m, web width of 250 mm and overall depth of 500 mm. The tensile reinforcement consists of 6-∅20 mm bars in two rows with 25 mm vertical clear spacing. Use material strengths f’c = 21 MPa and fy = 415 MPa. Calculate the following considering a T-geometry: Effective flange width of an interior beam in mm = ? Depth of uniform stress block at ultimate stage in mm to the nearest whole number = ?? Tensile steel strain compatible with concrete strain of 0.003 in 3 decimal places = ?
A simply supported concrete beam 6m long is reinforce with four-28 mm diamgram tension bars. The beam has a width of 300mm and over all depth of 400.the steel covering to the centroid of the renforcement is 70 mm fc=30mpa and fy 418mpa A .draw a stress diagram B.compute for the ultimate capacity of the beam
A reinforced concrete beam has a width of 300mm and an effective depth of 600mm. Compressive reinforcement (if required will be placed at d'=60mm. f'c=27.5 MPa and fy=415 MPa. Use NSCP 2015. The beam is to support a factored bending moment of 670 kN-m, a) Determine the required area of tension reinforcement. b) Determine the required area of compression reinforcement. c) Determine the number of 25mm bars required as compression and tension reinforcement. Note: Minimum number of bars = 2 bars. d) Calculate the capacity of the designed section.
Design a rectangular cross section having tension steel only of a size that would obviate the need to check deflections. The beam is simply supported and is to carry given uniformly distributed dead and live loads, in addition to the weight of the beam. Make all the practical decisions for size of cross section, select the reinforcement, and check the strength using statics and basic principles. f ′ c (psi)=3500; fy= 40,000; (psi) w_D =1.0 (kips/ft); w_L = 2.0 (kips/ft); Span =30 (ft); Approx 1.5-2 d/b
For non-prestressed flexural members, the maximum strain for the rebar shall be 0.004 if the compressive load is less than _____ of the compressive strength of the member. a) 10% b) 50% c) 25% d) 17%
A beam with b=200mm, h=400mm, cc=40mm, stirrups=10mm, fc'=32 MPa, fy=415 MPa is reinforced by 3-32mm diameter bars Calculate the strain at the tension bars
A bearing plate is to be designed for a W21x62, A36 steel beam that will sit on a reinforced concrete wall (f'c = 21 MPa) 200 mm thick. The bearing plate material has Fy = 345 MPa. The end reactions are a service dead load of 150 kN and live load of 300 kN. Determine the following using ASD: 1. Required minimum width and thickness of the bearing plate calculated assuming it is positioned at the center of the concrete wall . Use length N = 150 mm. B = [B] mm. Round up by 10 mm or 25 mm. 2. Required thickness of the bearing plate if B = 300 mm, N = 200 mm. t = [t] mm. Round up to the nearest whole number. Answers: 1. 325 and 2. 35