The Pratt roof trusses are uniformly spaced every 4.5m. The deck, roofing material, and the purlins have an average weight of 0.28kN/m2. The building is located in New York where the anticipated snow load is 1.0kN/m2 and the anticipated ice load is 0.4kN/m2. These loadings occur over the horizontal projected area of the roof. Determine the force in each member due to dead load, snow, and ice loads. Neglect the weight of the truss members and assume A is pinned and E is a roller.

The Pratt roof trusses are uniformly spaced every 4.5m. The deck, roofing material, and the purlins have an average weight of 0.28kN/m2. The building is located in New York where the anticipated snow load is 1.0kN/m2 and the anticipated ice load is 0.4kN/m2. These loadings occur over the horizontal projected area of the roof. Determine the force in each member due to dead load, snow, and ice loads. Neglect the weight of the truss members and assume A is pinned and E is a roller.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: Determine the permissible ultimate moment capacity Mn of the prestressed bonded beam shown in…

A: The yield strength of the prestressed tendons is fpy=240000 psi.The ultimate strength of the…

Q: The 400-kg precast concrete section is hoisted by a vertical force 'T' from a crane. Find the…

A: mass= 400kg To find tension in cable AB,AC,AD

Q: A prestressed T beam shown which is reinforced with a bonded tendon having an area Aps = 1580 mm2,…

Q: A 4-ft concrete post is reinforced with four steel bars, each with a -in. diameter. Knowing that E,…

A: Normal stress is stress that occurs when a member is loaded by an axial force. It is simply the…

Q: Which of the following gives the value of the diameter of spiral column? Which of the following…

Q: A reinforced concrete beam has a width of 300 mm and a total depth of 500 mm. It is reinforced with…

A: width b = 300 mm Total depth = 500 mm Effective depth d = 419 mm f'c =27.6 Mpa fy = 414.7 Mpa…

Q: 4. A wood post 12 in. by 12 in. is braced by four steel angles. The wood post and the pieces of…

Q: C. Shear Design a. Using the problem from letter B, determine the Ultimate Shear Vu. b. What is the…

Q: A 4-m simply supported timber beam is to be designed to carry a total uniform load of 10 kN/m…

Q: A timber beam having a simple span of 5m carries a total load, including its weight, of 15 kN/m. It…

A: Given load on beam W=15 KN/m Span of the beam l=5 mload on the beam w=15 KN/m UDLwidth of the…

Q: A rectangular concrete beam having a width of 300 mm is reinforced for tension only. The beam…

Q: A TIMBER BLOCK “400 x 400” mm SQUARE IS REINFORCED ON OPPOSITE SIDES BY A “400” mm AND ‘t’ mm THICK…

A: Given:- Axial load=1000 kNMaximum timber stress=12 MPaMaximum stress in steel=350 MPaModulus of…

Q: Example 2. The cross section of the simply supported pre- tensioned concrete beam has a width of 300…

A: a)deflection immediately after cables are cut; The given values are: b(width)=300mm d(depth)=500mm…

Q: The wood beam has a square cross section. Find the smallest allowable cross-sectional dimensions if…

A: Draw the free-body diagram of the beam. Write the equilibrium equation for the moment about point…

Q: Design a bearing plate at the support for a roof beam ISMB 600 @ 1202.71 N/m resting on a concrete…

Q: 1. A rectangular beam has uniformly distributed dead and live loads along its full length as shown…

Q: Situation 17: A rectangular beam has a width of 300mm and an effective depth to the centroid of the…

A: Given - Width =300mm Effective depth = 600mm Tension reinforcement = 4762 mm2 Fy = 414.6Mpa and f'c…

Q: A short tied column carries an axial dead load of 600 kN and a 800 kN live load. Using 2% gross…

A: Given data Fy = 276 MPa Fc' = 20.68 DL = 600 KN LL = 800 KN

Q: Question 3 A rectangular Timber column, 200 mm by 90 mm, is reinforced by the addition of two…

Q: ,Top tie 4. Assume that the wet concrete (s.w. = 150 Ibf/ft³) behaves as a liquid. Determine the…

A: Given data, Specific weight = 125lbf/ft³ Height = 9ft Vertical braces spaced at = 2 ft

Q: The concrete post is reinforced axially with four symmetrically placed steel bars, each of…

Q: 1.2m 10 cm 7cm -7cm This concrete beam has four A-35 steel rods of one centimeter diameter and a…

A: Stresses in Concrete Beam : A concrete beam is a load bearing unit which is used to carry both…

Q: PROBLEM NO. 4. A uniformly distributed load, W1, is appli all throughout the length of the beam anda…

A: First Calculate Bending moment at the section By calculating Reaction and take moment about left end…

Q: A reinforced beam has a: width = 500 mm effective depth = 600 mm n = 9 If the maximum stress of…

A: Given : Width =500mm, effective depth =600mm n=9 Maximum stress in concrete is 5MPa Moment = 80KN-m

Q: A rectangular concrete beam is 12 in. wide and has an effective depth (d) of 18 in. Compression…

Q: A reinforced concrete beam has a width of 300 mm and a total depth of 500 mm. It is reinforced with…

A: Answer We are given width b = 300 mm Total depth = 500 mm Effective depth d = 419 mm f'c =27.6 Mpa…

Q: ANALYSIS OF FINK ROOF TRUSS GENERAL DATA IN DETERMINING THE DESIGNING STRESSES OF A FINK ROOF TRUSS…

Q: A prestressed beam has a width of 250 mm and a total depth of 500 mm. It is sub jected to a bonded…

Q: Determine end reactions for Beam B-1 and Girder G-1. L1 B-1 • L1= 24 ft • L2 = 6 ft 'I G-1 Live load…

A: Given:- The value of L1 = 24 ft The value of L2 = 6 ft The magnitude of the live load = 30 psf The…

Q: A timber beam 150 mm wide and 200 mm deep is to be reinforced by bolting on two flitched each 150 mm…

A: Answer We are given Timber section 150 mm * 200 mm Steel section 150 mm * 12.5 mm Es = 20 Ew…

Concept explainers

Composite Construction

Composite construction is the construction of structures in which two or more materials are used. Regarding structural engineering, composite construction is a construction where two materials are bound together in a technical manner such that both the materials act as a single unit to carry and transfer the load. The motives of composite construction are to increase the structural strength, make structures more aesthetic, and provide a sustainable environment.

Question

➤ The Pratt roof trusses are uniformly spaced every 4.5m. The deck, roofing material,
and the purlins have an average weight of 0.28kN/m2. The building is located in
New York where the anticipated snow load is 1.0kN/m2 and the anticipated ice load
is 0.4kN/m2. These loadings occur over the horizontal projected area of the roof.
Determine the force in each member due to dead load, snow, and ice loads. Neglect
the weight of the truss members and assume A is pinned and E is a roller.
H
2.4 m-
B
2.4 m
-2.4 m
F
-2.4 m-
1.8 m
1.8 m
E

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1: Calculation of load at joint A,E,H,G and F

VIEW

Step 2: Calculation of forces in members of the truss

VIEW

Step 3: Consider forces at joint B

VIEW

Step 4: Calculation of force in GC

VIEW

Solution

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 5 steps with 5 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

I want the solution for the question
Topic: Restrained Beams 140KN 2.5m 3.5m 5KN/m 3.2m МА 6m MB 11WL2 Pab² 5WL2 Pa?b MA = - MB = - 192 L2 192 L2 INSTRUCTION: 1. Determine the maximum stress in the timber beam with the size of 120 x 370mm.
The 400-kg precast concrete section is hoisted by a vertical force 'T' from a crane. Find the tension in cables AB, AC, AD.
The wood beam has a square cross section. Find the smallest allowable cross-sectional dimensions if the working stresses are 8 MPa in bending and 1.0 MPa in shear. 5 kN 2 kN • m D B F10m- 1.0 m 1.0 m -1.0 m
A TIMBER BLOCK "B x B" mm SQUARE IS REINFORCED ON OPPOSITE SIDES BY A "B" mm AND 't' mm THICK STEEL PLATES. DETERMINE THE THICKNESS 't' SO THAT THE ASSEMBLY WILL SUPPORT AN AXIAL LOAD OF 1000 KN WITHOUT EXCEEDING A MAXIMUM TIMBER STRESS OF 12 MPa OR A MAXIMUM STRESS IN STEEL OF 350 MPa. MODULUS OF ELASTICITY OF STEEL AND TIMBER ARE 210 GPa & 7 GPa RESPECTIVELY. B t B t PROB 04
A triangular beam, having a base of 300 mm, and a height of 500 mm. If fc' = 25 MPa, and the subjected maximum moment is 15 kN-m. Considering Uncracked Analysis. What is the actual tensile stress? 1.80 MPa O 3.60 MPa None of the Choices O 2.06 MPa O 2.88 MPa O 2.40 MPa
The overhanging beam shown supports the given ultimate load Wu= 5okN/m. The section is 300mm by 500mm rectangular beam having f'c=35MPa, fy=420 MPa, stirrups diameter = 10mm and concrete cover 40mm. a.) Calculate the vertical reaction at B in kN b.) Calcute the vertical reaction D in kN c.) Calculate the area of steel reinforcement corresponding to rho max in mm^2. d.) Calculate the location of the point of zero shear in the beam measured from the left support B in mm. e.) Calculate the maximum positive moment in the beam in kN.m.s
Pls write the complete solution cleanly
A T-section has a flange width of 750 mm, thickness of flange is 50mm. Effective depth is 750 mm with a width of web section of 350 mm. The beam is subjected to a factored moment ??=816 kN-m, concrete has a strength of 21 MPa and that the yield stress of the steel is 277 MPa. Determine the following:a. Nominal moment capacity of the overhanging portion of the section.b. Depth of the compression blockc. Area of reinforcemen
1. Girders AC and DF have a width of 350 mm and a total depth of 500 mm. Given: Total dead load - 4.9 kPa (including wt. of slab and beam) Concrete f'e = 20.7 MPa Longitudinal bars fy = 415 MPa Live Load = 4.8 kPa Shear bars fyv = 275 MPa Distance on center of girders: Concrete cover = 70 mm L= 6 m, S = 2.8 m, Column = 0.35x0.35 a. ) For beam BE, calculate the factored shear force (kN) at the critical section. Assume a simply supported span. b.) Determine the spacing (mm) of two legs of 10 mm ø shear bars at the critical section. c. ) In accordance with NSCP provisions, what should be the maximum spacing (mm) of stirrups at the critical section of the shear. A 2.80 m E 2.80 m 6.00 m Girders 350x500 mm Beams 250x400 mm
Let the allowable stresses in the post be ??? = 120 ??? and ??? = 6 ???. Compute the maximum safe axial load P that may be applied. The moduli of elasticity are 200 GPa for steel and 14 GPa for concrete. Each steel bar has cross-sectional area of 900??2
About Uncracked and Craked Section 1. A doubly reinforced beam has dimension of 300mmw x 600mmh. It is reinforced with 2-25mm diam compression bars and 4 25mm diam tension bars. Concrete cover from centroid of steel bar is 60mm. On its section has a bending moment of 300KN-m. Using working stress design method what are the stresses acting on the concrete, compressive and tensile steel bars? used n: 8