A. A truck, with four wheel configuration and has loads as shown, will cross to a 12 m span bridge. A bridge engineer need to design a bridge section to accommodate these ypes of trucks and make some cases in selecting a cross-section beam 30 kN 20 kN 40 KN 50 KN -4 m- 1m 12 m Case 1: Determine the maximum moment and shear Case 2: Among these 5 steel sections, which of the following is economical if the allowable flexure capacity is 175 MPa and allowable maximum shear of 250 MPa? Steel Section B (mm) Area (mm²) W 10 x 112 W 10 x 110 W 10 x 88 W 10 x 77 W 10 x 68 S (x10° mm³) Q (x10³ mm³) I (x10º mm4) 1036 264.54 21226 2065 298 262.64 260.73 258.83 259 222 189 18968 1835 910 16710 14581 1614 789 680 1408 257.30 12903 1241 592 164 Case 3: If the Bridge Engineer suddenly changes its decision and wants to use a Rectangular Concrete Beam, what would be its dimension assuming that the height is

A. A truck, with four wheel configuration and has loads as shown, will cross to a 12 m span bridge. A bridge engineer need to design a bridge section to accommodate these ypes of trucks and make some cases in selecting a cross-section beam 30 kN 20 kN 40 KN 50 KN -4 m- 1m 12 m Case 1: Determine the maximum moment and shear Case 2: Among these 5 steel sections, which of the following is economical if the allowable flexure capacity is 175 MPa and allowable maximum shear of 250 MPa? Steel Section B (mm) Area (mm²) W 10 x 112 W 10 x 110 W 10 x 88 W 10 x 77 W 10 x 68 S (x10° mm³) Q (x10³ mm³) I (x10º mm4) 1036 264.54 21226 2065 298 262.64 260.73 258.83 259 222 189 18968 1835 910 16710 14581 1614 789 680 1408 257.30 12903 1241 592 164 Case 3: If the Bridge Engineer suddenly changes its decision and wants to use a Rectangular Concrete Beam, what would be its dimension assuming that the height is

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter10: Plate Girders

Section: Chapter Questions

Problem 10.5.3P

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4/47 Compute the force in member HN of the loaded truss. BE 2 m A 4/40 n L L D R Q L L F 6 m L P O N -8 panels at 3 m Problem 4/47 age to L BODJEN H M L I L L 2- J [2 m EM K
How many zero force members are there in the truss shown? F. [E Hl100 '1 60 VKN kN 60 ♥kN Select one: O a. 4 O b. 2 О с. 1 O d. 3
0000 5 kN B M Identify the ZERO Force members for the truss FG GH KL L D AB BC CD DE ODF НІ OHI ☐UJ JK OLM K J D D BM BL CL ODL E G JF JG JH DK →5 kN 000 { D MA KF EF
|%A• In. ? Asst. Prof. Muhammed Abbas المعلم منذ ۱۲ ساعات مضت. H.W.2: Find the 40 k force in each G member of the 5 k truss. 16 ft V17 F 10 k 10 k 16 ft 3 B - 8 ft- 8 ft- 4 ft 4 ft 4 ft 4 ft 4.
SOLVE FOR THE FORCE IN ALL MEMBERS OF THE TRUSS. SHOW SOLUTIONS CLEARLY USING METHOD OF JOINTS AND WRITE WELL. 0.8m 2.4m A BD BD 3 KN MEMBER AB AC BC BE BF EF GE FG 2m Av(REACTION @ hinge) Gv(REACTION @ roller) C 1m 10KN B 1m 8KN 3.5m SUMMARY OF RESULTS FORCE E 8KN 1m F 2.4m 6KN G NATURE(T or C)
a) Write and explain one advantage and onedisadvantage of using intermediate stiffeners in plate girders. b) If a plate girder design was initially determined to require intermediate stiffeners, but one optedtonot use them, how else could the plate girder be designed to achieve the same shaer capacity. c) A w-shepe beam is bent in bi-axial bending. All loading passes through its shear center. Please explain why the flexural strenght about its weak axis is the fullplastic moment capacity regardless of Lb
A welded plate girder of 18 m span having flange plates 400x16 mm for each flange and 200x10 mm web. Compute the sectional properties and moment of resistance of the plate girder . Design also the end bearing and intermediate transverse stiffener, if the girder is subjected to U.D.L. of 120 kN/m
S f A structure is to be built as shown supporting a uniform load of 18 kN/m. The location for the supports at A and B has been determined. The connection at C may be placed anywhere along the member AD 18 kN/m A C D 3 m B L -7 mi -5 m- If the allowable bending stress for member AD is 8 MPa, which among the choices gives the most economic section? Select the correct response: 275 mm x 550 mm 250 mm x 500 mm 300mm x 600 mm 225 mm x 450 mm rigid
3. A single moving load of 120 kN is moves along a simply supported girder of 28 m span. The absolute maximum bending moment will be ----- kN*m. (a) 1680 (b) 840 (c) 420 (d) none of them
Problems / Eqi FUNDAMENTAL PROBLEMS All problem solatioIS must include an FBD. FS-1. Determine the horizontal and vertical companents of reaction at the supports. Neglect the thickness of the beam. FS sup SCI tb t tb-ft 5t 511 F5-1 Determine the harizontal and irnts
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A welded plate girder of Grade S275 steel carries two concentrated loads transmitted from 254x254 UC 107 columns at the third points. The columns rest on the top flange and the loads are each 400 kN dead load and 250 kN imposed load, respectively. The plate girder is 12 m span and is simply supported at its ends. The compression flange has adequate lateral restraint at the points of concentrated loads and at the supports. Assume that the weight of the girder is 4 kN/m and that the girder is supported on brackets at each end. Assuming that the depth limit is 1400 mm for the plate girder, (a) draw the shear force diagram; (b) draw the bending moment diagram, (c) estimate the optimum depth for the plate girder; (d) calculate the flange area. Assume that the flange plates are less than 16mm for a steel grade of 275 N/mm2.