A singly reinforced concrete beam has section 230 mm wide x 460 mm effective depth. At a section under consideration there are two 16 mm diameter bent-up bars at 45° and 6 mm diameter two legged stirrups at a spacing of 200 mm centre to centre. The grade of concrete is clangular

A singly reinforced concrete beam has section 230 mm wide x 460 mm effective depth. At a section under consideration there are two 16 mm diameter bent-up bars at 45° and 6 mm diameter two legged stirrups at a spacing of 200 mm centre to centre. The grade of concrete is clangular

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

4. An interior reinforced concrete slab has to be designed to support a live load and a dead load in addition to its own weight based on the following specifications: The slab is one-way and simply supported with a span of 12 ft. The live load on the slab is 200 psf. The dead load on the slab is 100 psf. Your design will use concrete compressive strength fe= 3000 psi and steel yield strength of fy = 40,000 psi
A rectangular beam has the dimensions (see Figure) b = 12 in., h - 20 in, and d 17 in. and is reinforced with three No. 9 (No. 29) bars so that As - 3.00 in. The concrete compressive strength fe is 4000 psi, and the tensile strength In bending (modulus of rupture) is 475 psi. The yield point of the steel f, is 60,000 psi. Determine the concrete compression stress at the top fiber caused by a bending moment M- 10 ft-kips. 9- 6.78 in, I= 4067 in, Es= 29000000, E = 3600000 17 in. 20 in. 3 #9 bars (A, - 3.00 in.?) 3 in. -12 in- Select one: a. 390 psi b. 1390 psi c. 200 psi d. 250 psi
For the bean shown below, the concrete strength is 5000 psi and the yield strength is 60,000 psi. For the midspan section shown, check if steel yields and compute ØM, and compare it with M. WD = 1.2 kips/ft plus weight of beam WL = 1.5 kips/ft %3D 20.5 in 23 in 3 no. 9 bars 18 ft 11 in.
Given the following properties of beam: b = 250 mm, d = 325 mm and h = 400 mm. a) Assuming the concrete is uncracked, compute the bending stresses (in MPa) in the extreme fibers of the beam at M = 100 kN-m. Blank 1 b) Determine the cracking moment (in kNm) for the section if f'c = 28 MPa. Blank 2 c) Compute the flexural stresses in the concrete and steel of the beam using the transformed-area method at M = 100 kN-m, n = 9 and reinforced with 5-16 mm diameter tension bars. Unit must be in MPa. fc = _Blank 3, fs =__________ Blank 4
A rectangular cantilever beam has a width of 250mm and an effective depth of 480mm. It is reinforced with 7-25mm bars. The beam is carrying a uniformly distributed dead load of 15kN/m. The compressive strength of the concrete is 21MPa and the yield strength of the steel is 415MPa. The depth of the concrete stress block is?
S Maximum strain in extreme fibre of concrete and in tension steel of Fe 415 grade (E = 2 x 105 N/mm²) in a balance section in limit state of flexure are respectively (a) 0.0035 and 0.0031 (b) 0.0035 and 0.0038 (c) 0.002 and 0.0042 (d) 0.002 and 0.0038
A prestressec concrete beam 300 mm wide and 600 mm deep is prestressed using 5 high tension bors f 12 mm o provide at 220 mm from the soffit of the beam. The effective stress in the steel is 800 N/ m Find the bending that niust be applied to the section to just auoid tension at the soffit of the beam.
CASE:A rectangular beam has the dimensions (see Fig.1) b = 15 in.,h = 30 in., and d = 27.37 in. and is reinforced with three No.9 bars. The concrete compressive strength fc' is 4000 psi, and the tensile strength in bending (modulus of rupture) is 475 psi. The yield point of the steel fy is 60,000 psi, the stress-strain curves of the materials being those of Fig.2. Determine the stresses caused by a bending moment M = 45 ft-kips.Question1:Check this case, would the concrete of the beam crack? Please calculate the strengths of those two materials in this beam.Question2:Suppose the beam under this case is subject to a bending moment M = 110 ft-kips (rather than45ft-kips as previously). Calculate the relevant properties and stresses.Question3:Determine the nominal moment Mn at which the beam of this case will fail. Question4:Have a comparison of the calculation results with those of three questions.
A concrete floor slab 100mm thick is cast monolithic with concrete beams 2.0m on centers. The beams have a span of 4.2m, web width of 250 mm and overall depth of 450 mm. The tensile reinforcement consists of 4-25 mm diameter bars in two rows with 25mm 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 =
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
Asiacell lln. H.W. No.1 For the simply supported solid one way reinforced concrete slab shown in the figure below having a span of (L= 4m), check the following requirements using strength method: a- Slab thickness b- The spacing between reinforcement for main and shrinkage reinforcement c- The actual reinforcement with minimum reinforcement d- Calculate ultimate resisted moment that can be withstand by the slab e- Determine the ultimate uniformly distributed load carried by slab. f = 25 N/mm2 fy=420 N/mm² + 10mm@s00mm shrinkage h=200mm -L=4m- $12mm@200mm main
A beam having a width of 500 mm and a total depth of 800mm is reinforced with 6-32mm dia bars Compressive strength of concrete is 28 MPa and yield strength of reinforcing bars is 420MPaa) depth of the compression blockb) strain in the tension reinforcementc) moment reduction factor