9. It is a term used for beam sections where under flexural loads, steel reinforcement will yield first before concrete will fail. a. Under reinforced beam b. Over reinforced beam 00. a. b. c. Balanced section d. No reinforcement What should be done if the bar length is not enough for a given beam span? Extrude the bar so that required c. Splice the bar and continue until required length. d. None of the above bar length is met Bend the bar to have proper development length

9. It is a term used for beam sections where under flexural loads, steel reinforcement will yield first before concrete will fail. a. Under reinforced beam b. Over reinforced beam 00. a. b. c. Balanced section d. No reinforcement What should be done if the bar length is not enough for a given beam span? Extrude the bar so that required c. Splice the bar and continue until required length. d. None of the above bar length is met Bend the bar to have proper development length

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

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter9: Composite Construction

Section: Chapter Questions

Problem 9.10.2P

See similar textbooks

Similar questions

As a design engineer you are asked to peer review the design done by another engineer at your organization. A typical reinforced concrete floor slab plan is given. Assume all members to be simply supported. The specified compressive strength of concrete is 5000 psi and Grade-60 steel is used. Unit weight of concrete can be assumed as 150 lb/ft³. B 30'-0"- B2 -EQ.- EQ. -EQ. SEC 1 -40'-0" IS B1 B3 B3 B1 2 The only dead load acting on the slab is the self-weight of the members. The live load on the slab is 100 psf. Initial cross-section and reinforcement details of beam B1 is shown. Area of steel is 4.8in². EQ. 40'-0" B EQ. North
A simply supported beam is reinforced with 5-p25 mm at the bottom and 2-020 mm at the top of the beam. Concrete covering to centroid of reinforcement is 70 mm at the top and 64 mm at the bottom of the beam. The beam has a gross depth of 450 mm and gross width of 300 mm. fc'= 28 MPa, fy = 415 MPa. Assume bars laid out in single layer. Calculate the following if the limiting tensile steel strain is 0.004 for a ductile failure: Depth of the neutral axis from the extreme concrete compression fiber to the nearest whole number = mm Design strength of the beam section to the nearest whole number = kN -m Maximum service uniform live load over the entire span in addition to a DL = 20 kN/m (including the weight of the beam) if it has a span of 6 m = kN/m (to the nearest whole number)
Refer to the figure shown below. 350 Given are the following: fc 55 MPa fou 1,350 MPa Aps - 1.500 mnm2 fpy - 1,100 MPa Use bonded tendons as prestressed reinforcement. Determine the design monment capacity of the section. (kN-m)
A simply supported beam is reinforced with 5-ϕ25 mm at the bottom and 2-ϕ20 mm at the top of the beam. Concrete covering to centroid of reinforcement is 70 mm at the top and 64 mm at the bottom of the beam. The beam has a gross depth of 450 mm and gross width of 300 mm. fc’= 28 MPa, fy = 415 MPa. Assume bars laid out in single layer. Calculate the following if the limiting tensile steel strain is 0.004 for a ductile failure: Depth of the neutral axis from the extreme concrete compression fiber to the nearest whole number = __ mm
A simply supported beam is reinforced with 5-ϕ25 mm at the bottom and 2-ϕ20 mm at the top of the beam. Concrete covering to centroid of reinforcement is 70 mm at the top and 64 mm at the bottom of the beam. The beam has a gross depth of 450 mm and gross width of 300 mm. fc’= 28 MPa, fy = 415 MPa. Assume bars laid out in single layer. Calculate the following if the limiting tensile steel strain is 0.004 for a ductile failure: Depth of the neutral axis from the extreme concrete compression fiber to the nearest whole number = mm Design strength of the beam section to the nearest whole number = kN·m Maximum service uniform live load over the entire span in addition to a DL = 20 kN/m (including the weight of the beam) if it has a span of 6 m = kN/m (to the nearest whole number)
A simply supported beam is reinforced with 5-ϕ25 mm at the bottom and 2-ϕ20 mm at the top of the beam. Concrete covering to centroid of reinforcement is 70 mm at the top and 64 mm at the bottom of the beam. The beam has a gross depth of 450 mm and gross width of 300 mm. fc’= 28 MPa, fy = 415 MPa. Assume bars laid out in single layer. Calculate the following if the limiting tensile steel strain is 0.004 for a ductile failure: Maximum service uniform live load over the entire span in addition to a DL = 20 kN/m (including the weight of the beam) if it has a span of 6 m = kN/m (to the nearest whole number)
A two span beam subjected to shear and flexure only is reinforced as follows: @ FACE OF SUPPORTS SECTION TOP BARS BOTTOM BARS @ MIDSPAN 2-020 mm 5-020 mm 3-020 mm 2-020 mm Given: Stirrup diameter, de = 10 mm Concrete fe = 21 MPa Steel rebar fy = 415 MPa Stirrup fy = 275 MPa Beam size b xh= 270 mm x 450 mm Assume all bars laid out in single layer. Calculate the following: Tensile steel ratio in positive bending at midspan = (in 5 decimal places) Design Moment strength of section at midspan for positive bending = kN m (nearest whole number) Nominal Moment strength of section at face of support for negative bending = kN-m (nearest whole number)
1. A two span beam subjected to shear and flexure only is reinforced as follows: SECTION: TOP BARS @ MIDSPAN: 2-⌀20mm @ FACE OF SUPPORTS: 5-⌀20mm SECTION: BOTTOM BARS @ MIDSPAN: 3-⌀20 mm @ FACE IF SUPPORTS: 2-⌀20 mm Given: Stirrup diameter, ds = 10 mm Concrete f'c = 21 MPa Steel rebar fy = 415 MPa Stirrup fy = 275 MPa Beam size b x h = 270 mm x 450 mm Assume all bars laid out in single layer. Calculate the following: a. Design Moment strength of section at midspan for positive bending = ______ kN·m (nearest whole number)
The details of the cantilever beam are shown below. Use f’c = 28 MPa, fy = 415 MPa, and fyt = 275 MPa. Notes:• All dimensions are in millimeters.• Column reinforcement not shown for clarity• Column and beam are neither exposed to weather nor contact with the ground.• Analyze as singly reinforce beam only.• Neglect the weight of the beam.• Concrete is normal weight and reinforcements are galvanized. What is the flexural capacity of the beam at face of support in kNm? What is the shear capacity of the beam at face of support in kN? What is the maximum Pu (kN) that can be applied at the free end of the beam considering flexure and shear? What is the required minimum cut length (mm) of each stirrup? Round your answer to nearest safe25 mm
Find the ultimate moment of resistance for the rectangular section reinforced as shown below. material strengths: Concrete Reinforcement Width of section Reinforcement fcu= 30-MPa fy:= 450-MPa b:= 280 mm d:= 510 mm d':= 50-mm 2 A, 2410-mm A's:= 628-mm 2 b A', Hi As
The shown is a beam-column connection. Assuming normal weight concrete, f'c = 5000 psi, fy = 60 ksi and all the steel bars are uncoated. The top tension bars are # 9 bars and the bottom compression bars are # 8 bars. Column X2 X3 21.56 in. 17.25 in. 27.6 in. a 34.5 in. X1 Tension Steel I Compression I Steel a 4 Beam d b Beam Dimension and Reinforcement: b = 16 in., d =24 in. clear cover = 1.5 in. Stirrups are # 3 bars with 6 in. spacing. A, = 4# 9 bars, A', =2 # 8 bars The total cross-sectional area of the column ties confining the hooked bars are 1.38 in.² The minimum distance "X2" required by ACI 318-19 code is most nearly equal to: As A's Sec.a- a
The T-section shown is subjected to a design ultimate moment of M = 180kN.m. Find the required area of reinforcement given a 10% redistribution of moments was applied in determining the moment. istic material strengths: concrete inforcement Width of flange Height of flange Width of web feu := 30-MPa fy:= 450-MPa bf:= 400-mm hf:= 100-mm bw := 200-mm d:= 350-mm Reinforcement Depth bf A bw d