I will rate, thanks! c. Assume that compression rebars will be added. Determine the maximum steel area ofcompression rebars Ag so that the compression bars yield at the flexural failure. The effectivedepth is d'1.5"d. Based on A's determined in part c, calculate the nominal moment strength Mr and the designmoment strength Mr of the doubly reinforced beam [in kips-ft]. A singly reinforced beam will be provided with the reinforcing barscorresponding to 90% of the maximum reinforcement ratio required bythe ACI Code for a tension-controlled (i.e., underreinforced) design.The materials used have the following properties:f = 5000 psi, fy = 60000 psi, & = 0.002a. Estimated the required steel area As.d = 17.5"h = 20"•b = 12"b. Calculate the nominal moment strength M, and the design moment strength M, [in kips-ft].

Answered: Image /qna-images/answer/3fc351ec-8c43-4c38-83ea-28a45145d37c.jpg

Answered: c. Assume that compression rebars will…

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter12: Composite Materials

Section: Chapter Questions

Problem 12.7P: Estimate the transverse tensile strength of the concrete in Problem 12.6.

See similar textbooks

Similar questions

Note For Problems 9.6-1 through 9.6-5, use the lower-bound moment of inertia for deflection of the composite section. Compute this as illustrated in Example 9.7. 9.6-5 For the beam of Problem 9.4-2. a. Compute the deflections that occur before and after the concrete has cured. b. It the live toad deflection exceeds L360 , select another steel shape using either LRFD or ASD.
Use the composite beam tables and select a W-shape and stud anchors for the following conditions: Span length = 18 6 Beam spacing = 9 ft Total slab thickness = 51 2 in. (the slab and deck combination weighs 57 psf). Lightweight concrete with a unit weight of 115 pcf is used Construction load = 20 psf Partition load = 20 psf Live load = 225 psf Fy=50 ksi and fc=4 ksi A cross section of the formed steel deck is shown in Figure P9.8-9. The maximum live-load deflection cannot exceed L/360 (use a lower-bound moment of inertia). a. Use LRFD. b. User ASD.
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.
Note For Problems 9.6-1 through 9.6-5, use the lower-bound moment of inertia for deflection of the composite section. Compute this as illustrated in Example 9.7. 9.6-1 Compute the following deflections for the beam in Problem 9.2-1. a. Maximum deflection before the concrete has cured. b. Maximum total deflection after composite behavior has been attained.
In Example Problem 12.1, a uniaxial composite material is made into a circular rod Vbith a 1.27-cm diameter from 70 volume percent continuous carbon fibers and 30 volume percent epoxy. The rod is subject to an axial force of 100,000 N. The composite matcrial in Example Problem 12.1 is to be replaced with a less expensive composite made of 70 volume percent continuous E-glass fibers and 30 volume percent epoxy. The elastic moduli are 5 GPa for the epoxy resin and 72.4 GPa fos the E-glass. (a) Compare the elastic modulus, composite strain, fiber and matrix stresses, and density of this composite with the carbon epoxy composite in Example Problem 12.1. Usc the density of UHM carbon, and assume the density of the epoxy is 1.2g/cm3 . (b) Can both the E-glass fiber and matrix withstand the applied force?
What are the main properties of white cast iron?
A tensile test was performed on a metal specimen having a circular cross section with a diameter 0. 510 inch. For each increment of load applied, the strain was directly determined by means of a strain gage attached to the specimen. The results are, shown in Table: 1.5.1. a. Prepare a table of stress and strain. b. Plot these data to obtain a stress-strain curve. Do not connect the data points; draw a best-fit straight line through them. c. Determine the modulus of elasticity as the slope of the best-fit line.
The data in Table 1.5.3 were obtained from a tensile test of a metal specimen with a rectangular cross section of 0.2011in.2 in area and a gage length (the length over which the elongation is measured) of 2.000 inches. The specimen was not loaded to failure. a. Generate a table of stress and strain values. b. Plot these values and draw a best-fit line to obtain a stress-strain curve. c. Determine the modulus of elasticity from the slope of the linear portion of the curve. d. Estimate the value of the proportional limit. e. Use the 0.2 offset method to determine the yield stress.

Recommended textbooks for you

Materials Science And Engineering Properties

Civil Engineering

ISBN:

9781111988609

Author:

Charles Gilmore

Publisher:

Cengage Learning

Steel Design (Activate Learning with these NEW ti…

Civil Engineering

ISBN:

9781337094740

Author:

Segui, William T.

Publisher:

Cengage Learning

Construction Materials, Methods and Techniques (M…

Civil Engineering

ISBN:

9781305086272

Author:

William P. Spence, Eva Kultermann

Publisher:

Cengage Learning

Materials Science And Engineering Properties

Civil Engineering

ISBN:

9781111988609

Author:

Charles Gilmore

Publisher:

Cengage Learning

Steel Design (Activate Learning with these NEW ti…

Civil Engineering

ISBN:

9781337094740

Author:

Segui, William T.

Publisher:

Cengage Learning

Construction Materials, Methods and Techniques (M…

Civil Engineering

ISBN:

9781305086272

Author:

William P. Spence, Eva Kultermann

Publisher:

Cengage Learning

Fundamentals Of Construction Estimating

Civil Engineering

ISBN:

9781337399395

Author:

Pratt, David J.

Publisher:

Cengage,

Architectural Drafting and Design (MindTap Course…

Civil Engineering

ISBN:

9781285165738

Author:

Alan Jefferis, David A. Madsen, David P. Madsen

Publisher:

Cengage Learning

Traffic and Highway Engineering

Civil Engineering

ISBN:

9781305156241

Author:

Garber, Nicholas J.

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS