Structural Steel Design (6th Edition)
6th Edition
ISBN: 9780134589657
Author: Jack C. McCormac, Stephen F. Csernak
Publisher: PEARSON
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Chapter 2, Problem 2.11PFS
To determine
Theuniform load per foot using ASD expressions supported by each beam.
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the given section of beam is at point of maximum moment of the beam loaded shown. use n=8 , calculate the compressive force of the concrete
The dimensions for a reinforced concrete beam are given as: b = 300mm d = 400mm d’ = 75mm It is to be designed for a service dead load moment of 30kN-m and a service live load moment of 40kN-m. Suppose f’c = 21MPa and fy = 276MPa, how many 20-mm bars are required to reinforced the beam in terms of steel area?
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- 0:0£ IO %or M M E a ".ull zain IQ docs.google.com/forms O Q2: For the cantilever beam with uniformly distributed load shown in Figure 2. Use the data (bf,hf,bw,hw) from Table 2, determine the following: 16KN/m Sm bf hf hw hf bw Figure 2 1. The maximum shear force in the beam in (kN) Your answer ...arrow_forwardInclude Reinforced Timber Column Diagramarrow_forwardi need the answer quicklyarrow_forward
- 1. A square timber column, 10 in by 10 in in cross section, is reinforced on all four sides by copper plates, each plate being 10 in wide and "t" in thick. Determine the smallest value of "t" for which the column can support an axial load of 560 kips if the working stresses are 1250 psi for timber and 17 ksi for copper. The moduli of elasticity are 1.5 x 106psi for timber and 17 x 106psi for copper.arrow_forwardThe rectangular reinforced concrete column shown is part of a special moment frame in a region of high seismic risk. The columns above and below the joint have the same cross section containing properly developed and confined concrete whose interaction diagram is shown below. Under factored gravity and seismic loads, the design axial compression forces on the columns are: • Case 1: Pua = 260 kip, Pub = 320 kip • Case 2: Pua = 55 kip, Pub = 100 kip Find the maximum nominal moment strength of the beam permitted by ACI to alleviate plastic hinges forming first in the columns for the loading cases?arrow_forwardshow solution. thanks!arrow_forward
- A timber prop of 120 mm diameter rests on a concrete plinth as shown. The plinth is 50 mm thick. If the shearing stress in the plinth is 12.3 MPa. Determine the axial load applied on top. provide your answer in kN with precision to two decimal points. Answer: 300 120 300arrow_forwardKindly answer it. Thank you ?arrow_forwardA timber beam in an existing building is 200 mm wide and 380 mm deep and is simply supported at the ends of 4 6 m span. A) Calculate the safe uniformly distributed load for the timber alone if the bending stress must not exceed 7 N/mm2. B) It is proposed to strengthen the beam to enable it to carry a uniformly distributed load of 150 kN by bolting two steel plates to the beam as shown below. Calculate the required thickness t of the plates if the plates if the maximum permissible stress for the steel is 140 N/mm2 and the modular ration is 24arrow_forward
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