Concrete column=350mm x 350 mm Concrete Strength = 21 MPa Steel Bars Strength = 415 MPa Unfactored Moment about x-axis = 145 kN-m Unfactored Moment about y-axis =110 kN-m Total Axial Load Unfactored = 800 kN Factored = 1280 kN Factored Moment about x-axis = 180 kN-m Factored Moment about y-axis = 136 kN-m a) Which of the following gives the safe dimension of a square spread footing if the effective soil bearing capacity is 280 kPa. b) Which of the following gives the factored soil pressure at comer “b" of the footing? c) If the footing has an effective depth of 360 mm, what is the nearest value of the factored shear at the critical section for two-way action of the footing?

Concrete column=350mm x 350 mm Concrete Strength = 21 MPa Steel Bars Strength = 415 MPa Unfactored Moment about x-axis = 145 kN-m Unfactored Moment about y-axis =110 kN-m Total Axial Load Unfactored = 800 kN Factored = 1280 kN Factored Moment about x-axis = 180 kN-m Factored Moment about y-axis = 136 kN-m a) Which of the following gives the safe dimension of a square spread footing if the effective soil bearing capacity is 280 kPa. b) Which of the following gives the factored soil pressure at comer “b" of the footing? c) If the footing has an effective depth of 360 mm, what is the nearest value of the factored shear at the critical section for two-way action of the footing?

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

C (b/h) 8ød b/2 b/2 The geometry and reinforcement configuration of the column is given below. The material properties are CX/S420. The analysis results due to different loading combinations are as follows (C30,b=400mm,h%3D600mm) Combo 1: Nd%3D1250 kN / Mdx = 250 kN Combo 2: Nd%3D1000 kN / Mdx = 400 kN Combo 2: Nd%3D750 kN / Mdx = 550 kN Determine the longitudinal reinforcement of the column.
a concrete floor slab 100mm thick is cast monotholic with concrete beams 2.0 m on centers. the beams have a span of 4.0m, web width of 259 mm and overall depth of 50 mm. the tensile reinforcement consists of 6-⌀20 mm bars in two rows with 25mm vertical clear spacing. use material strengths f'c=21MPa and fy=415MPa. calculate the ff considering a T-geometry: 1. effective flange width of an interior beam in mm 2. depth of uniform stress block at ultimate stage in mm to the nearest whole number 3. tensile steel strain compatible strain of 0.003
hinz 1. For the beam cross section below, determine the amount of steel As required to cause the strain in the tension steel & to be 0.005 just as the maximum strain in the concrete reaches 0.003. fc' = 3000 psi and fy = 60,000 psi. N.A. b= 10"- Cross Section d = 23" [7422 4233 134 S THE THE CALE DES 2 23-c me Like phans 0.005 PANE Strain 0.003 P HOME st 0.85f Stress 6 I.C. Nc NT * * * * * Delorme
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: 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 W 305 x 87, 7.5m llong, is pinned at both ends and braced in the weak direction at the third points. Determine the available compressive strength. Properties: A = 10,965 mm² lx = 331.2x106 mm4 ly = 55.78x106 mm4 •• Please Show Solutions Steel Design: Civil Engineering Answersi Pn=Fer Ag= 274.61 (10965) 1000 Pn=3011.05 KN
Fill in the blanks: Determine the required tension steel area of the T beam with given properties below. Width of flange bf= 500 mm Width of web bw = 400mm Thickness of flange tf 140 mm Effective depth d = 380 mm Effective concrete covering d' = 75 mm Compressive strength of concrete fc' = 30 MPa Yield stress of steel bar fy = 300 MPa Mu = 448 kN-m As = mm2 CS Scanned with CamScanner
Design economical spacing of 10 mm diameter stirrups for the beam which carries the loads shown. Design shear reinforcement of prestressed beam with the following properties listed. Properties: f’c = 28 MPa fy = 276 MPa Aps = 800 mm2 Ds = 10 mm Dm = 18 mm fse = 800 MPa fpu = 1500 MPa fpe = 860 MPa Pe = 250 kN
Help me how to design the REINFORCED CONCRETE BEAMS WITH IRREGULAR CROSS SECTION as shown infigure 1 using the following parameters:F’c = 3,500 Psi Fy=Grade 40 Stirrups = Φ10mmMu = 200 Kn-M All Concrete cover = 30mm Es=200,000 Mpa Find the following: AC area of compression concrete stress block in mm. Assume z = 0.85dEff a height of compression concrete stress block in mm. c distance from the neutral axis to outermost compression fiber in mm. z actual moment arm for Mu=ØTz in mm. As actual area of tension steel in sq.mm. N quantity of Ø20mm steel rebars ЄS Actual Strain of steel ЄY Yield Strain of steel Check if the beam is singly reinforced concrete in the designed then concludeCheck: ЄY < = > ЄS Draw the Working Drawings of the x-section.
The given section of the beam is at acting at the point of maximum moment of the beam loaded shown. Use n=8. calculate the compressive force of the concrete. The answer is kN. mm mm 150 150 150 mm 2-20mm 50mm 50 mm 142.5 KN/m 400 m 1-20m 1-20 m Gm 2m f00mm
A rectangular beam 250 mm wide, 500 mm deep is reinforced at the bottom with d-20-mm-dismeter bars and at the top with 2-16-mm bars. Concrete cover to bar centroid at the top is M0 mm and at the bottom is 70 mm. Use concrete strength r'e-21 MPa und steel yield strength fy 415 MPa for 20- mm bars and fy= 275 MPA for 16 mm bars Detenmine the design moment capacity n kN m of the beam in negative bending. A 40.06 O45.07 C. 42.70 D47.55
3. Determine the axial compressive strength based on the limit states of flexural buckling using NSCP 2015 provisions (ASD & LRFD). Use Fy = 50 ksi, E = 29,000 ksi L = 13 ft W10 x 39 Properties d = 9.92 in bf = 7.99 in tf = 0.53 in tw = 0.315 in A = 11.5 in² ry = 1.98 in rx = 4.27 in kdes = 1.03 in L
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 - ø20 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: Effective flange width of an interior beam in mm = _______ Depth of uniform stress block at ultimate stage in mm to the neares whole number = _______ Tensile steel strain compatible with concrete strain of 0.003 in 3 decimal places = __________