Select the lightest W section for the two-span con- tinuous beam of the accompanying figure. Use Fy=60 ksi. The concentrated loads are 12 kips dead load and 60 kips live load. Lateral support is provided at the vertical supports and under the concentrated load. Specify alternative lateral sup- port if necessary in order to use maximum plastic strength in the design. 72 k Service load 8.0 20'-0" 10'-0"

1. Check the beam shown for compliance with the AISCS. Lateral support is provided only at the ends, and A992 steel (E345 MPa and Fu= 450 MPa). The only uniform service dead load is the weight of the beam. The 70 KN service loads are 30%DL and 70%LL. Use LRFD. IR₁ 0.90m 70,KN * W14 x 68 1.20m 70 KN * 0.90m R₂ W14x68 70 KN

Material properties are: - Concrete weight: wt = 150 pcf - Concrete compressive strength: f'c = 4000 psi - Steel tensile strength: fy = 60 ksi - Stirrup consists of #4 bar - Framing members are not exposed to weather or in contact with soil. A simplified line diagram of Girder G2 is shown below: Determine the tributary area for each concentrated load for G-2. 30-0¹ B4 B4 69 Colum Dea 30-0 - Mark 89 PD & PL 30 square feet 400 square feet 700 square feet 1200 square feet 90-0 BI -Ser PD & PL a=

A plate girder must be designed for the conditions shown in Figure P10.7-4. The given loads are factored, and the uniformly distributed load includes a conservative estimate of the girder weight. Lateral support is provided at the ands and at the load points. Use LRFD for that following: a. Select the, flange and web dimensions so that intermediate stiffeners will he required. Use Fy=50 ksi and a total depth of 50 inches. Bearing stiffeners will be used at the ends and at the load points, but do not proportion them. b. Determine the locations of the intermediate stiffeners, but do not proportion them.

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.

Design the flexural reinforcement of the cantilever beam shown below for the given loading and data. The loads shown include the self-weight. f. = 28 MPa ; fy 420 MPa Main Reinforecemnt : 020mm ; Stirrups : Øø10mm P= 70kN -1000mm W= 100 kN/m 150mm 450mm -2.0m 400mm Page 4

Ims.mutah.edu.jo a -> G LMS uestion 1 A double-MC shape, 2MC18×42.7 with cover plate PL 0.41x13 of 50-Ksi steel is used for a built-up compression member as shown below. Locate the Y coordinate of the centroid of the cross-section from the top? orrect ark 1.00 out 1.00 Flag uestion Plate 12 in LO

Where is/are the location(s) of the maximum transverese shear stress? A simple I-beam is loaded as shown. 20 mm P KN PKN PKN Į Į -C B с D L/4 m L/4 m Midspan at point C Roller at E at the NA Section B at the top fiber Pin A at point C Midspan at point D Roller E at point D L/4 m L/4 m OE 20 mm 20 mm- 250 mm 150 mm 150 mm A

1. Check the beam shown for compliance with the AISCS. Lateral support is provided only at the ends, and A992 steel (E 345 MPa and Fy= 450 MPa). The only uniform service dead load is the weight of the beam. The 70 KN service loads are 30%DL and 70%LL. Use LRFD. 70 KN 70, KN 70 KN W 14 x 68 0.90m 1.20m 0.90m WI4 x68 IR, R2

USE NSCP 2010 A rectangular beam reinforced for both tension and compression barshas an area of 1450 mm² for compression bars and 4350 mm² fortension bars. The tension bars and compression bars are placed at a distance of 600 mm and 62.5 mm respectively from the top of thebeam. The beam width 300 mm, fc’ = 21 MPa, fy = 415 MPa andtension steel covering is 60 mm.If it is 8 m-simply-supported beam that carries three concentratedservice live loads P applied at three quarter points of the beam (exceptat the supports), neglecting the self weight of the beam, determine themaximum value of service load P in kiloNewtons.