Beam DesignA roof design supports a dead load of 65 lb/ft2 and a snow load of 40 lb/ft2 In addition, a wind pressure of 20 lb/ft2 (uplift or downward) must be accommodated. Determine the governing load condition

Beam DesignA roof design supports a dead load of 65 lb/ft2 and a snow load of 40 lb/ft2 In addition, a wind pressure of 20 lb/ft2 (uplift or downward) must be accommodated. Determine the governing load condition

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Problem 2 Figures on page 3 show the partial framing plan and elevations of a three story steel structure. The floor dead load is 60 psf and the floor live load is 80 psf. The roof dead load is 20 psf and the roof live load is 10 psf. Assume that the stair load is the same as the floor load. Using the LRFD load combinations, find the: (a) (b) (c) (d) (e) Ultimate loading for the beams B-1 through B-9, located on the second level. Ultimate loading for the beams RB-1 through RB-9, located on the roof. Ultimate loading for the girders G-3 through G-5, located on the second level. Ultimate loading for the girders RG-3 through RG-5, located on the roof. Ultimate loading for the columns G-1 through G-3, H-1, and H-2 between the first and second levels. Compare the loading in columns G-3, H-1, and H-2 by adding up the loads transfered to them from the beams and the girders they support, and the tributary areas. Maximum shear and moments for the beams B-2, B-4, G-3, and G-4, on the second…
A spiral column is 430 mm in diameter and is reinforced with 7-28 mm bars Grade 415. The spirals are 10 mm in diameter and concrete cover used is 40 mm. If f'c = 28 MPa, and the column has an unsupported length of 2.20 m, what is the safe ultimate load that the column can support using the 2001 NSCP specifications? Neglect moment in the column. Ku = 1.0
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A roof system with W12 × 50 sections spaced 8 ft on center is to be used to support a Question 2) dead load (D = 70 psf, self-weight not included), a roof live, snow, or rain load (L, or S or R = 50 psf) and a wind load (W = ±100 psf). (a) Determine the maximum combined load (per linear foot) using the recommended AISC expressions for LRFD. Take the load factor on L' in combinations 3, 4, and 5 as 0.5. (b) Determine the maximum combined load (per linear foot) using the recommended AISC expressions for ASD.
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STRUCTURAL ANALYSIS II The given plan below shows a 2-way floor system carried by 1-story 2-bays frame system as shown in sec 1-1. The floor is 18 cm in thickness and made with reinforced concrete with fc'= 28MPA and fy= 420MPA, yc= 24kN/m3. The floor is to carry a service live load of 5 kN/m2. Assume that E is constant for all structural elements in the system. Determine the following: 1- Extract he structural system of beam ADG, beam BEH, frame ABC, and frame DEF, showing the loads to be carried on each element from the slab, and include the own weight of the element given that beams ADG and BEH have a section of 180mm in depth and 400 mm in width. Where the girder of all frames has a cross section of 300 mm in depth and 800mm in width. 2- Analyze beam ADG using slope- deflection equations method. 3- Analyze beam BEH using moment distribution method. 4- Analyze frame ABC using moment distribution method. G H 3 5m 5m 7m 7m Floor Plan 4m 7m 7m sec 1-1 800mm 400mm 300mm 180mm sec 2-2…
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5 Assume W = 40 ft and D = 40 ft. The unreduced roof live load is 20 psf. The live load on the second and third floors is 65 psf, and the live load on the fourth floor is 40 psf. Compute the total live load in the following columns; Al between third and fourth floor, D2 between second and third floor, and E2 between ground and second floor. (Ans: PAI = 16.4 k, PD2 = 86.4 k, PE2 = 64.4 k)
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