Design a rectangular section for the following beam considering the given loading. The weight of the beam is included in the given loading. Use pmax such that will not be less than 0.9. Show sketch of cross section including bar sizes, arrangement, and spacing. Verify that the bar layout will fit within the width of the selected beam cross section. Verify that the selected bars will not exceed the targeted reinforcing ratio (pmax). Assume normal weight concrete that weighs 150 pcf, fy = 60,000 psi, and fc' = 4000 psi. 10' PL = 35 kips WD = 2.5 k/ft 10¹-

Design a rectangular section for the following beam considering the given loading. The weight of the beam is included in the given loading. Use pmax such that will not be less than 0.9. Show sketch of cross section including bar sizes, arrangement, and spacing. Verify that the bar layout will fit within the width of the selected beam cross section. Verify that the selected bars will not exceed the targeted reinforcing ratio (pmax). Assume normal weight concrete that weighs 150 pcf, fy = 60,000 psi, and fc' = 4000 psi. 10' PL = 35 kips WD = 2.5 k/ft 10¹-

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

a) Determine the ultimate strength of the concrete in lb/in b) Determine the allowable compressive stress with a factor of safety of 5.0 against ultimate strength. c) Determine the ultimate permissible load that the concrete can carry using the strength design method. Use a strength reduction factor of 0.60 against ultimate strength.
7.1 For each assigned problem, calculate the development length required for the following tension bars. All bars are bottom bars in normal-weight concrete unless specified otherwise in the notes. No. b h Bar No. f (ksi) f (ksi) 6 9 Clear Clear f, (ksi) Cover (in.) Spacing (in.) Notes 60 40 4 3 2.0 2.0 2.50 1.5 Lightweight aggregate concrete Epoxy coated
If the compressive strength of the concrete is 4 ksi and the yield strength of steel is 60 ksi, the value of that should be used in computing the design moment strength oMn for the beam section should be 23.5 in 1.5424 0.65 0.48 0.9 3#9 14 in 26 in
2. Tensile strength of concrete is about: (20-35)% of compressive strength (45-70)% of compressive strength None of the above. Tension controlled section Balanced section Compression-controlled section 4- The reduction factor (0) is equal to 0.9 if the: Es 2 Ety + 0.003 Es S Ety + 0.003 Es Ety 5- The design method which use the factored loads is - Working stress method - Ultimate design Method - None of above 6- If p< Po therefore the section is - Under reinforced - Over reinforced - None of above
Compare the compressive strength and the splitting tensile strength.of following concrete.
The design engineer specifies a concrete strength of 5500 psi. Determine the required average compressive strength for:a. a new plant where s is unknownb. a plant where s = 500 psi for 22 test resultsc. a plant with extensive history of producing concrete with s = 400 psid. a plant with extensive history of producing concrete with s = 600 psi
The design engineer specifies a concrete strength of 37.92 MPa. Determine the required average compressive strength for: a. a new plant where s is unknown b. a plant where s = 3.45 MPa for 22 test results c. a plant with extensive history of producing concrete with s = 2.76 MPa d. a plant with extensive history of producing concrete with s = 4.14 Mpa
A symmetrical cross-section of a reinforced concrete shown has a value of f'c = 26.27 MPa and fy = 414 MPa. Calculate the nominal capacity based on the maximum steel area for a tension- controlled condition. Use the following dimensions: b = 498 mm d = 709 mm t = 152 mm web thickness - 152 mm b 1 I d
Item 5 Column AB is made from high strength pre-cast concrete and reinforced with four in diameter A-36 steel rods. The allowable normal stress for the high strength concrete and the steel are (allow) con = 2.6 ksi and (allow) st = 24 ksi, respectively. The modulus of elasticity for high strength concrete is 4.2 x 10³ ksi and for A-36 steel is 29 x 10³ ksi. (Figure 1) Figure 1 ▾of 1 10 ft a P B9 in. 9 in. Section a-a Part A Determine the magnitude of the maximum allowable floor loading P. Express your answer to three significant figures and include the appropriate units. μA Pmax= 158.91 kips Submit My Answers Give Up Incorrect; Try Again; 2 attempts remaining ? Provide Feedback Continue
Answer Options Correct Q.NO Question/Statement Answer A В D Plain cement concrete can able to 1 resist Bending Compression Shear Torsion 2 times the 3 times the 5 times the 10 times the Maximum spacing of the main bar in the slab is thickness of thickness of thickness of thickness of slab slab slab slab The minimum number of bars in rectangular 3 1 4 column is 4 Long column generally fails by Compression Tension Buckling Deflection The percentage of reinforcement in the pedestal column is 0.8% 0.15% 5.0% 6.0% A column is said to be reinforced concrete L12B column if The foundation is said to be deep 7 when DrB D=D D=0 The withdrawal of moisture content of the Increase in All answers Segregation Shrinkage foundation soil leads to volume are wrong
a-Design the concrete column to carry the applied load Concrete allowable strength: 35 MPa P= 900 kN Column dimension needs to be 300 mm X B Material reduction factor 0.75 - Load factor 1.5 B mm 300
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.