A W14 x 61 must support a concentrated service live load of 665 KN applied to the top flange. Assume that the load is at a distance of at least half the beam depth from the support and design a bearing plate. Use E= 345 MPa for the beam, Ex= 250 MPa for the plate and fe'= 21 MPa. Use LRFD
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- 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.If the beam in Problem 5.5-9 i5 braced at A, B, and C, compute for the unbr Cb aced length AC (same as Cb for unbraced length CB). Do not include the beam weight in the loading. a. Use the unfactored service loads. b. Use factored loads.A W14X120 is used as a tension member in atruss. The flanges of the member are connected to a gusset plate by 3/4 inch boltas shown below. Use A36 steel with Fy-36 ksi and Fu=58 ksi Determine the Yielding Capacity of the section based on LRFD (kips) Determine the Tensile Rupture capacity of the section based on LRFD Determine the Demand to Governing Capacity Ratio (based on yielding and rupture only) if the Demand load carried by the section are DL=200 kips LL=400 kips use LRFD Properties and Dimension Ag=35.30 in^2 x = 6.24 in ry= 3.74 in d=14.5 in tf=0.94 in bf=14.7 in tw=0.59 in k=1.54 d=14.5 Y k1=1.5 bf=14.7 tf-0.94 X -tw=0.59 H
- The light rigid bar ABCD shown is pinned at C and connected to two vertical rods. The bar was initially horizontal, and the rods were stress-free before the load P= 20 KN is applied. Sleel E-200 GPa A-400mm L1 m 2.0 m 0.6 m 1.5m P-20 KN Aluminum E70 GPa A-900mm L-1.5 m 1. Axial load at steel rod in kN? 2. Axial stress at steel rod in MPa? 3. Axial deformation of aluminum rod in mm? 4. Axial deformation of steel rod in mm? 5. Axial Load at aluminum rod in kN?A W14X120 is used as a tension member in atruss. The flanges of the member are connected to a gusset plate by ¾ inch boltas shown below. Use A36 steel with Fy=36 ksi and Fu=58 ksi Determine the Yielding Capacity of the section based on LRFD (kips) Determine the Tensile Rupture capacity of the section based on LRFD Determine the Demand to Governing Capacity Ratio (based on yielding and rupture only) if the Demand load carried by the section are DL=200 kips LL=400 kips use LRFDBeam Bearing Plates and Column Base Plates 5.14-1 A W14 X 61 must support a concentrated service live load of 85 kips applied to the top flange. Assume that the load is at a distance of at least half the beam danth from the support and design a bearing plate. Use F, = 50 ksi for the beam and F, = 36 ksi for the plate. a. Use LRFD. b. Use ASD. ana
- The light rigid bar ABCD shown is pinned at C and connected to two vertical rods. The bar was initially horizontal, and the rods were stress-free before the load P = 20 KN is applied. Steel E200 Gra A-600mm L-I m 2.0 m 0.6m 1.5 m D. V P-20 KN Aluminum E-70 GPa A-900mm L-1.5 m What is the axial load at aluminum rod in KN?The beam under the Live and Dead loads is shown below. The steel class is $235. Lig L1 L2 a.) Evaluate the slenderness of the web and flange. b.) Calculate the Cb value based on the loads. c.) Calculate the bending moment capacity of the beam... d.) Is the beam cross-section enough for the given loads. L3The beam shown in Figure is a two-span beam with a pin (hinge) in the center of the left span,making the beam statically determinate. There is continuous lateral support. The concentratedloads are service live loads. Determine whether a W12 × 79 of A992 steel is adequate.a. Use LRFD.b. Use ASD.