4. The state of two dimensional stress acting on a concrete lamina consists of a direct tensile stress of 6 MPa and shear stress of 4 MPa, which cause cracking of concrete. Then what will be the tensile strength of the concrete in MPa.?
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- SIT. B: Determine the tensile steel ratio of a given conditions if concrete strength f'. = 28 MPa and steel yield strength fy 4. if the tensile strain is Es = fy/Es upon crushing of concrete at a strain of 0.003. C. 0.02833 A. 0.01567 B. 0.02161 D. 0.02125 if the tensile strain is limited to 0.004 upon crushing of concrete at a strain of 0.003. A. 0.01567 B. 0.01548 5. 6. Minimum as required by NSCP 2015. C. 0.00313 D. 0.00405 A. 0.00333 B. 0.00276 = 420 MPa. C. 0.02778 D. 0.02064 uniformlyAt what percent of compressive strength of concrete the stress in beam changes from directly proportional to varying with respect to depth..draw the stress-strain curve of concrete in compression
- Determine the tensile steel ratio of a singly reinforced concrete beam for the following conditions using concrete strength f’c = 28 MPa and steel yield strength fy = 420 MPa. if the tensile strain is εs = fy/Es upon crushing of concrete at a strain of 0.003. = ___ (5 decimal places)9. If the value of the fc' of concrete is 30 MPa, and the actual stress of the concrete subjected to a force is 12 MPa, at what stage is the concrete at?Determine the tensile steel ratio of a singly reinforced concrete beam for the following conditions using concrete strength f’c = 21 MPa and steel yield strength fy = 420 MPa. if the tensile strain is set as 0.009 upon crushing of concrete at a strain of 0.003. = [rr] (5 decimal places)
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- Determine the tensile steel ratio of a singly reinforced concrete beam for the following conditions using concrete strength f’c = 21 MPa and steel yield strength fy = 420 MPa. 16. if the tensile strain is εs = fy/Es upon crushing of concrete at a strain of 0.003. = [r] (5 decimal places)A concrete specimen with b = d is supported at both ends 600mm apart. It is tested for flexure strength with load at midspan of 100kN and failed with a flexural stress of 52.083 MPa. What is the dimension b and d of the specimen in mm?The concrete in the core of a spiral column is sub- jected to a uniform confining stress o, of 680 psi. What will the compressive strength o be? The un- confined uniaxial compressive strength is 5000 psi.