Q7 A girder having a span of 18 m is simply supported at the ends. It is traversed by a train of loads as shown in Fig. the 50 kN load loading. Find the maximum bending moment using influence line diagrams (ILD). 100 kN 200 kN 100 kN 50 KN W₁ B 3 m 2m W₂ 3m W₂ C 18 m W₁
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- CIV533-ANALYSIS AND DESGIN OF BRIDGES Design the Maximum Bending stress for plate Girder as shown in figure. The Bending moment due to dead load and live load is 1150 kNm and 4500 kNm respectively. Take flange width as 700mmFrom the given figure below, determine the maximum flexural stress of the beam if it has a cross section of 150mm wide by 250mm deep. (JN 10 N/m o' RA=42N 42N 3M B IM 75Nm 81NM Im RD=3N -3N 0° 78 Nm 3NM V-DIAG M-DIAGThe bridge truss shown carries the following uniform live load and concentrated live load. в с D A B E 3m K F G H J SO8m W(LL) P(LL) 15 110 Calculate the following: 7. Maximum force on member GH
- I. Method of Joints 1. The portion of truss shown represents the upper part of a power transmission line tower. For the given loading, determine the force in each of the members located above HJ. State whether each member is in tension or compression. 1.60 m -221 m- -2.21 m- To60m 10.60 m 1.20 m 12 kN 12 kN L f060 m To.60m -2.97 m- 1.20 m 12EN 1.2 KN To.00m f0.60 m 12 kN 1.2 kN 2. The truss shown in figure is pin connected only at the lettered joints. Find the force acting in each member. 12 H E 400 Ib 600 Ib 4 panels @18' 72"- 800 IbBeam PQRS has internal hinges in spans PQ and RS as shown. The beam may be subjected to a moving distributed vertical load of maximum intensity 4 kN/m of any length anywhere on the beam. The maximum absolute value of the shear force (in kN) that can occur due to this loading just to the right of support Q shall be: B E F 1 m 2 m 0.5 m 0.5 m 0.5 m2. A simple steel beam is to carry the concentrated loads as shown in the figure. (a) Drav the shear diagram, (b) determine the maximum moment, and (c) determine the wide-flange shape that should be used from the list shown if the allowable normal stress for the grade of steel to be used is 110 MPa 60 KN/m 60 KN/m A B 4 m 1m2 m Shape W310x129 S (cm') 1955 Shape W310x202 S (cm) 5049 3423 W310x143 2155 W310x226 W310x158 2565 W310x253 3853 W310x179 2675 W510x285 4311
- The truss structure in the figure is supported by a roller at Land hinge at M. When Fo= 65 kN. (a) list zero force members, (b)determine reactive forces at Land M, and (c) find member forces in BV, EV and EU, and VT, and state if they are in tension or compression. -5 @ 3m= 15 m- C JOK 01010 I L -4@4m=16m- B A D G Fo E 60 kN U S Q 0 T R P N M FoQUESTION 1 The figure below shows a warren girder consisting of seven members each of 3m length freely supported at the end. The girder is loaded at B and C. Find the forces in all the members of the girder, indicating whether the force is compressive or tensile using the method of section. 2KN 4KN В 60° 60° 60° 60° A E 6m B.2. Design steel (S355) wide flange beams under bending for case (a), (b) and (c). The moment diagram (unfactored) is shown in Fig. 2. SOead 200 Ku.m M=l live 150 km la) 10m M Dead 280 kum live 140 krim M/2 8 m (C) bead 180 ku.m M= Live 140 kvm M 9 m Fig.2. Σ
- A bridge girder AB on a simple span oflength L =14 m supports a distributed load of maximumintensity q at mid-span and minimum intensityq/2 at supports A and B that includes the weight ofthe girder (see figure). The girder is constructed ofthree plates welded to form the cross section shown.Determine the maximum permissible load q basedupon (a) an allowable bending stress σallow =110 MPaand (b) an allowable shear stress τallow = 50 MPa.Problem 4. The Warren truss loaded as shown in the figure supported by a roller at B and a hinge at G. By the method of sections, compute the force in the members BC, DF, and BE 80 KN 60 KN с M A 6 m B 6 m 40 kN D E 100 kN 6 m 6 m- Determine the force in member GH and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension. FGH = Submit Part B. FBC= μA Value Part C Request Answer Determine the force in member BC and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension. HA Value Submit Request Answer 3 μA Units FBG = Value → Units ? Determine the force in member BG and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension. Units ? ?