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study help
engineering
fundamentals of structural analysis
Questions and Answers of
Fundamentals Of Structural Analysis
When a moment frame does not exceed 12 stories in height and the story height is at least \(10 \mathrm{ft}\), the ASCE standard provides a simpler expression to compute the approximate fundamental
A three-ply asphalt felt and gravel roof over 2-in.-thick insulation board is supported by 18-in-deep precast reinforced concrete beams with 3-ftwide flanges (Figure 2.2). If the insulation weighs 3
The steel framing plan of a small building is shown in Figure 2.3a. The floor consists of a 5-in.-thick reinforced concrete slab supported on steel beams (see section 1-1 in Figure 2.3b). Beams are
Using the tributary area method, compute the floor dead loads supported by columns A1 and B2 in Figure 2.4. The floor system consists of a 6-in.-thick reinforced concrete slab weighing 75 lb/ft2.
For the three-story building shown in Figure 2.5a and b, calculate the design live load supported by (1) Floor beam A, (2) Girder B,(3) The interior column C located at grid 2-B in the first story.
Determine the magnitude of the concentrated force for which the beam in Figure 2.6 supporting an elevator must be designed. The elevator, which weighs 3000 lb, can carry a maximum of six people with
Determine the wind pressure distribution on the four sides of an eightstory hotel located on relatively flat ground approximately 2500 ft above sea level; the Risk Category II basic wind speed is 100
The mapped wind velocity acting on the 45-ft-high, three-story building in Figure 2.19a is 90 mph. If exposure condition C applies, determine the wind force transmitted to the building’s
Determine the design seismic forces acting at each floor of the six-story office building in Figure 2.22. The structure of the building consists of steel moment frames (all joints are rigid) that
Determine the horizontal and vertical loads for tsunami Load Case 1 on the two-story building shown in Figure 2.28. It is located in an area prone to tsunami flooding, so it has been built with an
A column in a building is subject to gravity load only. Using the tributary area concept, the axial loads produced by the dead load, live load, and roof live load are What is the required axial
To determine the required flexural strength at one end of a beam in a concrete frame, the moments produced by dead, live, and wind load arewhere the minus sign indicates that the beam end is subject
Determine the deadweight of a 1-ft-long segment of the prestressed, reinforced concrete tee-beam whose cross section is shown in Figure P2.1. Beam is constructed with lightweight concrete which
Determine the deadweight of a 1 -ft-long segment of a typical 20-in-wide unit of a roof supported on a nominal \(2 \times 16\) in. southern pine beam (the actual dimensions are \(\frac{1}{2}
A wide flange steel beam shown in Figure \(P 2.3\) supports a permanent concrete masonry wall, floor slab, architectural finishes, mechanical and electrical systems. Determine the uniform dead load
Consider the floor plan shown in Figure P2.4. Compute the tributary areas for(a)(a) floor beam B1, (b) floor beam B2,(c) girder G1,(d) girder G2,(e) corner column C1C1,((f)(f) interior column C2C2.
Refer to Figure P2.4 for the floor plan. Calculate the tributary areas for (a) floor beam B3, (b) floor beam B4, (c) girder G3, (d) girder G4, (e) edge column C3,(f) corner column C4.Figure
The uniformly distributed live load on the floor plan in Figure P2.4 is 60lb/ft260lb/ft2. Establish the loading for members (a) floor beam B1,(b) floor beam B2,(c) girder G1G1,(d)(d) girder G2.
The uniformly distributed live load on the floor plan in Figure P2.4 is \(60 \mathrm{lb} / \mathrm{ft}^{2}\). Establish the loading for members ( \(a\) ) floor beam \(\mathrm{B} 3\),(b) floor beam
The building section associated with the floor plan in Figure P2.4 is shown in Figure P2.8. Assume a live load of \(60 \mathrm{lb} / \mathrm{ft}^{2}\) on all three floors. Calculate the axial forces
The building section associated with the floor plan in Figure P2.4 is shown in Figure P2.7. Assume a live load of \(60 \mathrm{lb} / \mathrm{ft}^{2}\) on all three floors. Calculate the axial forces
A five-story building is shown in Figure P2.10. Following the ASCE standard, the wind pressure along the height on the windward side has been established as shown in Figure P2.10(c). (a) Considering
A mechanical support framing system is shown in Figure P2.11. The framing consists of steel floor grating over steel beams and entirely supported by four tension hangers that are connected to floor
The dimensions of a 9-m-high warehouse are shown in Figure P2.12. The windward and leeward wind pressure profiles in the long direction of the warehouse are also shown. Establish the wind forces
The dimensions of an enclosed gabled building are shown in Figure P2.13a. The external pressures for the wind load perpendicular to the ridge of the building are shown in Figure P2.13b. Note that the
Establish the wind pressures on the building in Problem P2.13 when the windward roof is subjected to an uplift wind force.Problem P2.13The dimensions of an enclosed gabled building are shown in
(a) Determine the wind pressure distribution on the four sides of the 10-story hospital shown in Figure P2.15. The building is located near the Georgia coast where the wind velocity contour map in
Consider the five-story building shown in Figure P2.10. The average weights of the floor and roof are \(90 \mathrm{lb} / \mathrm{ft}^{2}\) and \(70 \mathrm{lb} / \mathrm{ft}^{2}\), respectively. The
(a) A two-story hospital facility shown in Figure P2.18 is being designed in New York with a basic wind speed of \(90 \mathrm{mi} / \mathrm{h}\) and wind exposure \(D\). The importance factor \(I\)
In the gabled roof structure shown in Figure P2.13, determine the sloped roof snow load \(P_{s}\). The building is heated and is located in a windy area in Boston. Its roof consists of asphalt
A beam that is part of a rigid frame has end moments and mid-span moments for dead, live, and earthquake loads shown below. Determine the governing load combination for both negative and positive
Calculate the vertical hydrostatic load on the 5100-lb empty shipping container in Figure P2.19 subjected to a tsunami inundation height of \(3^{\prime}\). Assuming the container is water-tight, will
Consider the building in Figure P2.22, which has a width into the page of \(35 \mathrm{ft}\). Maximum inundation height, \(h_{\text {max }}\), and flow velocity, \(u_{\max }\), have been determined
Determine the reactions of structure 10 kips 5 kips/ft 4' B
Determine the reactions of structure 15 kip. ft 5 5' B D 12] E 8 kips 6 kips 10'
Determine the reactions of structure B -3m- .3m 4m D 20 kN 15 KN
Determine the reactions of structure 1.2 kips/ft B A 18k 12'- D 9
Determine the reactions of structure BO 1 kip. ft 12' 10'
Determine the reactions of structure T 8 kips B 1 kip/ft 10- 12'
The support at A prevents rotation and horizontal displacement but permits vertical displacement. The shear plate at B is assumed to act as a hinge. Determine the moment at A and the reactions at C
Determine the reactions at all supports and the force transmitted through the hinge at B. A 40 KN B C 60 kN-m sms m5 m-5 m-10 m-
Determine the reactions for each structure. All dimensions are measured from the centerlines of members. 6 kips B 0.4 kip/ft 40' D E T 10' 20'
Determine the reactions for each structure. All dimensions are measured from the centerlines of members. 9 kips/ft B 7 5 kips/ft hinge D 20 kips 466 E 8"
Determine the reactions for each structure. All dimensions are measured from the centerlines of members. 25 kips 4 8' B 9 kips/ft P = 15 kips C D 8 44 | E
Determine all reactions. The pin joint at B can be treated as a hinge. 9' B 10' C D 12'
Determine all reactions. The pin joint at D acts as a hinge. 12 kN hinge 4 @ 3m=12m H E T 2 m 18 kN 2 m
Determine the reactions at all supports and the force transmitted through the hinge at C. A F 40 kN T 2m -6m- 15 kN-m B hinge 2 kN/m 4m4m- D 8 m 30 kN/m
Determine the reactions at supports A, C, and E. 4 kN/m 8 kN/m B C 40 KN D E
Determine all reactions. Joint C can be assumed to act as a hinge. 6 kips I B 6 kips H 4 @ 8' 32'- 6 kips D G 6 kips E 4 kips
Determine all reactions. The uniform load on all girders extends to the centerlines of the columns. 15 kN 30 kN 30 kN H w = 4 kN/m w = 6 kN/m w = 6 kN/m 12 m (not to scale) E D C bo T 3 m 4 m 6m
The bent frame BCDE in figure P3.18 is laterally braced by member AC, which acts like a link. Determine reactions at A, B, and E. 10 kips D embuang E |--12.512.5- w = 1 kip/ft 24
Determine all reactions. 6 kips/ft 150 B hinge 150- T 75'
Determine all reactions. 12 kN-> -4m- 6 kN/m 20 KN -4m- + 4 m T 3 m 3 m 1
Determine all reactions. 10' 10' B 10 kips 0.4 kip/ft 20 16'
Determine all reactions. The pin joint at E acts as a hinge. H 55 kips 6 12' B -15' 10 kips/ft 12 E
The roof truss is bolted to a reinforced masonry pier at A and connected to an elastomeric pad at C. The pad, which can apply vertical restraint in either direction but no horizontal restraint, can
The clip angle connecting the beam’s web at A to the column may be assumed equivalent to a pin support. Assume member BD acts as an axially loaded pin-end compression strut. Compute the reactions
Compute all reactions. B A s 2 kips/ft 10' D -5- E 12"
Compute the reactions at supports A, E, and F. A B F D 20 kips w = 10 kips/ft E 3' T 2
The baseplates at the bottoms of the columns are connected to the foundations at points A and D by bolts and may be assumed to act as pin supports. Joint B is rigid. At C where the bottom flange of
Draw free-body diagrams of column AB and beam BC and joint B by passing cutting planes through the rigid frame an infinitesimal distance above support A and to the right and immediately below joint
The frame is composed of members connected by frictionless pins. Draw free-body diagrams of each member and determine the forces applied by the pins to the members. T 2m 4 m B -2m- E S 10 kN 4 m- D
The truss in Figure P3.30 is composed of pin jointed members that carry only axial load. Determine the forces in members, a, b, and c by passing vertical through the center of the truss. A B 10' 15
(a) In Figure P3.31 trusses 1 and 2 are stable elements that can be treated as rigid bodies. Compute all reactions. (b) Draw free-body diagrams of each truss and evaluate the forces applied to the
Classify the structures in Figures P3.32. Indicate if stable or unstable. If unstable, indicate the reason. If the structure is stable, indicate if determinate or indeterminate. If indeterminate,
Classify the structures in Figures P3.33. Indicate if stable or unstable. If unstable, indicate the reason. If the structure is stable, indicate if determinate or indeterminate. If indeterminate,
Practical application: A one-lane bridge consists of a 10-in.-thick, 16-ft-wide reinforced concrete slab supported on two steel girders spaced 10 ft apart. The girders are 62-ft long and weigh 400
A timber member supported by three steel links to a concrete frame has to carry the loads shown in Figure P3.35. (a) Calculate the reactions at support A. (b) Determine the axial forces in all links.
The three bay, one-story frame consists of beams pin connected to columns and column bases pinned to the foundation in Figure P3.36. The diagonal brace member CH is pinned at each end. Determine the
The multispan girder in Figure P3.37 has two shear plate connections that act as hinges at C and D. The midspan girder CD is simply supported on the cantilevered ends of the left and right girders.
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