Steel Design (Activate Learning with these NEW titles from Engineering!)
6th Edition
ISBN: 9781337094740
Author: Segui, William T.
Publisher: Cengage Learning
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Chapter 9, Problem 9.8.5P
To determine
(a)
Selection of a
To determine
(b)
Number of shear studs required.
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Problem 1.
The composite beam shown below carries a cantilevered load of 10 kN. The beam consists of one
30 x 124 mm plate and four 12 x 50 mm plates. They are pinned together at 120 mm intervals with
round pins. The pin material has a shear strength of 159 MPa. Compute the minimum acceptable
diameter for the pins.
O
O
O
O
O
O
O
-0
O
0-
O
1000 mm
Do O
-120 mm (typ)
O
O
O
P = 10 KN
30 x 124 mm
12 x 50 mm (typ)
A reinforced concrete cantilever beam is shown
below. The beam cross section is a rectangle,
12 inches deep by 18 inches wide.
Material properties are:
- Concrete weight: wt = 150 pcf
- Concrete compressive strength: f'c = 4000 psi
- Concrete tensile strength: f't = 400 psi
- Steel tensile strength: fy = 60 ksi
- Stirrup consists of #4 bar
- Beam is not exposed to weather or in contact
with soil.
Determine if the beam will crack under its own weight, if its self-weight is 250lb/ft.
10 ft
-18"
BEAM SECTION
beam will crack
beam will not crack
unknown, not enough information to calculate
A reinforced concrete cantilever beam is shown
below. The beam cross section is a rectangle,
12 inches deep by 18 inches wide.
Material properties are:
- Concrete weight: wt = 150 pcf
- Concrete compressive strength: f'c = 4000 psi
- Concrete tensile strength: f't= 400 psi
- Steel tensile strength: fy = 60 ksi
- Stirrup consists of #4 bar
- Beam is not exposed to weather or in contact
with soil.
Calculate the maximum bending moment under the beam self-weight.
10 ft-
8,750 lb-ft
10,250 lb-ft
11,250 lb-ft
11,750 lb-ft
18"
BEAM SECTION
Chapter 9 Solutions
Steel Design (Activate Learning with these NEW titles from Engineering!)
Ch. 9 - Prob. 9.1.1PCh. 9 - Prob. 9.1.2PCh. 9 - Prob. 9.1.3PCh. 9 - Prob. 9.1.4PCh. 9 - Prob. 9.1.5PCh. 9 - Prob. 9.1.6PCh. 9 - A W1422 acts compositely with a 4-inch-thick floor...Ch. 9 - Prob. 9.2.2PCh. 9 - Prob. 9.3.1PCh. 9 - Prob. 9.3.2P
Ch. 9 - Prob. 9.4.1PCh. 9 - Prob. 9.4.2PCh. 9 - Prob. 9.4.3PCh. 9 - Prob. 9.4.4PCh. 9 - Prob. 9.4.5PCh. 9 - Prob. 9.5.1PCh. 9 - Prob. 9.5.2PCh. 9 - Prob. 9.5.3PCh. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Note For Problems 9.6-1 through 9.6-5, use the...Ch. 9 - Prob. 9.7.1PCh. 9 - Prob. 9.7.2PCh. 9 - Prob. 9.7.3PCh. 9 - Prob. 9.7.4PCh. 9 - Prob. 9.8.1PCh. 9 - Prob. 9.8.2PCh. 9 - A beam must be designed to the following...Ch. 9 - Prob. 9.8.4PCh. 9 - Prob. 9.8.5PCh. 9 - Prob. 9.8.6PCh. 9 - Prob. 9.8.7PCh. 9 - Prob. 9.8.8PCh. 9 - Use the composite beam tables and select a W-shape...Ch. 9 - Prob. 9.8.10PCh. 9 - Prob. 9.10.1PCh. 9 - Prob. 9.10.2P
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- 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.arrow_forwardA 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.arrow_forwardNote 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. 9.6-2 Compute the following deflections for the beam in Problem 9.2-2. a. Maximum deflection before the concrete has cured. b. Maximum total deflection after composite behavior has been attained.arrow_forward
- 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.arrow_forwardDesign Specifications 1st and 2nd floor Member Roof Deck Load (Typical) Live Load Item Superimposed Dead Load (Typical) Live Load Superimposed Dead a. b. C. For the structural plan attached, Hint: Self-weight B1 B2 Notes: 1. For simplicity, neglect self-weight of concrete slab B3 G1 G2 C1 C2 Design Loadings Application Slabs Slabs Slabs Slabs Value 4 3 2 3 4 4 4 Value 4 means pinned means continuous Assume all members have the same stiffness (same El) for simplicity 8 4 6 Unit kN/m kN/m kN/m kN/m kN/m kN/m kN/m Unit kPa kPa kPa kPa Determine the factored bending moment (LRFD) to be used in the design of Beam B1 in kNm. Determine the factored shear force (LRFD) to be used in the design of Girder G2 in kN. Determine the factored axial load (LRFD) to be used in the design of Column C1 in kN. -I T C2 G2 C1 G1 C1 5000 B3 1 B2 B1 B2 C2 C1 ∙H. GROUND FLOOR FRAMING PLAN C1 I G2 H G1 İ 8 C2 C1 G1 C1 5000 B3 1 B2 B1 + B2 1 B3 . C2 C1 I C1 SECOND FLOOR AND ROOF DECK FRAMING PLAN G1 G1arrow_forward3. A reinforced rectangular concrete beam having a width of 300 mm, effective depth of500 mm, fc’ = 24 MPa, fy = 415 MPa, 4 - 28 mmɸ, d’ = 65 mm. Present the following (a) actual steel ratio (b) maximum steel ratio (c) a(d) c (e) check if steel yields (f) ?steel(g) type of failure (h) reduction factor (i) moment capacityarrow_forward
- The material of the bcam given below is C35-45- B50OC and it is good quality concrete. The cobcreie cover is gIYCD as 50 mm. Thc dimensions of the bcam are gven as be820 mm. bw:350mm.t130 m, b 700 mm. Tbe sbear force (Vd)is S50 EN and stirrup calcelations will be done in the span region othe beam. Ir 338 stirupis used to mcet the shear force, what is the maximum stimup spacing (cm) in span region? (s=2) 11 15 D13 017 Boş bırak Sonraki> Kapatarrow_forwardDetails of a rectangular column are as follows: Column width along X-axis-250 mm Column Depth along the Y-axis-600 mm 8-25 mm diameter bars distributed equally along the longer sides. 10 mm diameter ties spaced at 10 mm on centers Concrete 28th day Compressive strength, fc;=20.7 MPa Reinforcing Steel yield strength, fy-415 MPa Assume that compression steel yields. a) Which of the following gives the nominal balanced load Pb (kN). A = 90.4 mm b) Which of the following gives the nominal axial load (kN) that the column n carry at an eccentricity of 200 mm along the X axis from the centroidal Y-axis.arrow_forwardAnswer Options Correct Q.No Question/Statement Answer A Select the grade of concrete required for 1 М5 M50 M15 М80 airport runways. The load which has fixed size and location is 2 called as Environmental All answers Dead load Live load Load are wrong Top surface of the tensile Bottom The clear cover of the RCC beam is taken as Centre of surface of the Bottom of the gravity of the tensile steel vertical distance from the base of the beam to steel tensile steel beam the reinforcement reinforcement 4 Stocky column generally fails by_ Compression Tension Buckling Deflection In a one way slab the main reinforcement is provided along All answers Both long and short span Long span Short span are wrong All answers Flat slab is placed above Drop panels Column Column head are correct The maximum percentage of reinforcement in 7 RCC short column, based on practical 0.8% 4% 6% 2% difficulties is For reinforced concrete wall D4B When to columns are far, select the type of foundation Trapezoidal…arrow_forward
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