Q. Composite beam. Question 1A composite beam cross section is made up of two rectangular strips. Each of (100×50) mm placed and jointed over each other as shown.SteelBrass100 mmCross Section50 mmP+50 mmSteelBrassSide viewPWhat is the axial stress os in steel portion of beam if load of 15000 N is acting on the beam?Given Es = 2 x 105 MPa, Egr = 1 x 105 MPal

Answered: Image /qna-images/answer/bf37d38f-ecc5-4fd9-9917-0744daeb87cc.jpg

Question 1 A composite beam cross section is made up of two rectangular strips. Each of (100x50) mm placed and jointed over each other as shown. Steel Brass 100 mm Cross Section 50 mm PA 50 mm Steel Brass Side view What is the axial stress o in steel portion of beam if load of 15000 N is acting on the beam? Given Es = 2 x 105 MPa, Egr = 1 x 105 MPa

Question 1 A composite beam cross section is made up of two rectangular strips. Each of (100x50) mm placed and jointed over each other as shown. Steel Brass 100 mm Cross Section 50 mm PA 50 mm Steel Brass Side view What is the axial stress o in steel portion of beam if load of 15000 N is acting on the beam? Given Es = 2 x 105 MPa, Egr = 1 x 105 MPa

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 9.2.1P: A W1422 acts compositely with a 4-inch-thick floor slab whose effective width b is 90 inches. The...

See similar textbooks

Similar questions

A W1422 acts compositely with a 4-inch-thick floor slab whose effective width b is 90 inches. The beams are spaced at 7 feet 6 inches, and the span length is 30 feet. The superimposed loads are as follows: construction load = 20 psf, partition load = 10 psf, weight of ceiling and light fixtures = 5 psf, and live load = 60 psf, A992 steel is used, and fc=4 ksi. Determine whether the flexural strength is adequate. a. Use LRFD. b. Use ASD.
The dimensions of a rectangular beam are limited to b = 300 mm and effective depth, d = 700 mm. Using f’c = 28 MPa, long bar fy = 415 MPa, calculate the required amount of tensile reinforcement so that a tensile strain of 0.005 is attained under a sustained ultimate bending moment of 1,200 kN.m. Compression bars centroid is 70 mm from beam edge. 5.353 3,839 4,387 6,180
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 4.2 m, 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 strengths 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 to the nearest whole number = ____?____ c. Tensile steel strain compatible with concrete strain of 0.003 in 3 decimal places =____?_____
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 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. The concrete cover to bar centroid is 80 mm and at the bottom is 70 mm. use concrete strength f'= 21 MPa and steel yield strength fy=415 MPa for all bars. 1. Determine the tensile steel ratio when the beam is in positive bending. a. 0.01567 b. 0.01283 c. 0.01169 d. 0.01923 2. Determine the nominal moment capacity in kN-m of the beam in positive bending. a. 188.30 b.167.70 c.218.96 d.193.68 3. Determine the tensile steel ratio when the beam is in negative bending. a. 0.00406 b. 0.00475 c.0.00383 d. 0.00508 please provide a complete solution so I can understand. Very much appreciated to solve it early !!
b=4a Allowable stress 300 MPa Size the beam? Note: Show the calculations in detail
A T-beam has the following properties: bf = 820 mm, bw = 250 mm, d = 470 mm, t = 100 mm. f’c = 20.7 MPa, fy = 414 MPa. Determine the required tension steel area when: a.MD = 175 kN-m, ML = 190 kN-m b.Find the maximum design moment so that its tension controlled. (USE c = 3d/8). Tension steel exactly experiences 0.005 strain. hello please answer that question,,thank you God bless
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
From load analysis, the following are the factored design forces result: Mu = 440 KN-m, Vu = 280 KN. The beam has a width of 400 mm and a total depth of 500 mm. Use f’c = 20.7 MPa, fy for main bars is 415 MPa, concrete cover to the centroid of the bars both in tension and compression is 65 mm, steel ratio at balanced condition is 0.02, lateral ties are 12 mm diameter. Normal weight concrete. Calculate the required area of compression reinforcement in mm2 due to the factored moment, Mu. Express your answer in two decimal places.
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 two span beam subjected to shear and flexure only is reinforced as follows: SECTION @ MIDSPAN @ FACE OF SUPPORTS TOP BARS 2-∅20 mm 5-∅20 mm BOTTOM BARS 3-∅20 mm 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: 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 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. Concrete cover to bar centroid at the top is 80 mm and at the bottom is 70 mm. Use concrete strength f’c = 21 MPa and steel yield strength fy = 415 MPa for 20-mm bars and fy = 275 MPa for 16-mm bars. a. Determine the limiting tensile steel ratio for a tension controlled condition in positive or negative bending with the given material strengths. ρt = ________ in 5 decimal places (ex. 0.00001) b. Determine the design moment capacity of the beam in positive bending. = ____kN∙m (whole number) c. Determine the design moment capacity of the beam in negative bending. = _____ kN∙m (whole number)