A 6m-simply supported beam cross-section is shown in the figure below is prestressd with 15 wires of 5mm diameter at the bottom and 3 wires at the top. Assuming prestress in steel is 840 Mpa and the density of concrete is 24 kN/m3. Calculate the stress at bottom extreme fiber at midspan. (Mpa)

Q: Determine the type and magnitude of the stress in a fiber 20 mm from the top of the beam at a…

A: Moment at 1m from the left endM=-2.5×1×12=-1.25kN-m

Q: :A hollow Aluminum shaft is slipped over a solid steel shaft. The two shafts are then fastened…

A: Given data in question  Composite section Shear modulus Length Diameter  To find out  Maximum shear…

Q: A singly reinforced rectangular section has a width of 250mm and an effective depth of 460mm. The…

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Q: A high-strength steel band saw, 22 mm wide, runs over pulleys 1100 mm in diameter. What minimum…

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Q: 40 mm Q9. A steel pipe and an aluminum pipe are securely bonded together to form the composite beam…

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Q: 3 Given a concrete beam (width b= 10 in., depth h=25 in.) with flexural reinforcement at the bottom,…

A: Cracking: When the stresses or the forces which are imposed on the structure cannot be resisted by…

Q: A rigid bar AB is hinged at A and is supported by a rod CD at C. The rod is pin connected at D, as…

A: The given data is as follows: E=200 GPaAllowable stress in rod CD=124 MPa

Q: A high-strength steel band saw, 22 mm wide, runs over pulleys 700 mm in diameter. What minimum…

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Q: An aluminum cylinder and a bronze cylinder are centered and secured between two rigid slabs by…

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Q: determine the largest bending moment (in Nm) that may be applied safely

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Q: 160 kN LLET --3m-> -6m 400 kN 6m X 40 mm 200 mm 100 mm 20 mm

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Q: The wooden beam shown is made by gluing together planks as shown. 8 kN/m Glue 80 mm 80 mm - NA 6 m…

A: Determine the maximum shear stress in the glue in kPa.

Q: A composite beam is constructed using a steel plate (14 mm x 155 mm) with two wood beams (75 mm x…

A: Figure is as shown

Q: Beam AZ, 2 in wide and 4 in high, is subjected to a loading condition as shown. Determine: a. the…

A:

Q: reinforced concrete beam

A: Given: The cross sections of the beam = 308 mm x 486 mm Width of the beam, b = 308 mm Depth of the…

Q: The Dn value for a low relaxation steel is ______.

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Q: 7. A solid aluminum cylinder is placed within an ASTM A501 steel tube as shown. Compute the stresses…

A: Given Data: The diameter of the solid aluminum cylinder is d1=3 in. The diameter of the steel tube…

Q: PROBLEM 1) An aluminum bar carries the axial loads at the positions shown. If E=70GPA, compute the…

A: Given   E= 70Gpa= 70000Mpa

Q: A high-strength steel band saw, 23 mm wide, runs over pulleys 800 mm in diameter. What minimum…

A:

Q: A typlcal aluminum-alloy scuba diving tank Is shown. The outside diameter of the tank is 200 mm and…

A: Maximum shear stress in plane = pd/8t Where,  d = inner diameter  d = 200-2*12 = 176mm

Q: The composite shaft shown in the figure consists of a bronze sleeve (1) securely bonded to an inner…

A: Given data,  D1 = 35 mm d1 = 20 mm G1 = 41 GPa D2 = 20 mm G2 = 80 GPa L = 430 mm T = 990 N-m To find…

Q: Problem Two: Consider the cross-sectional shown in the figure below. The cross-section is reinforced…

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Q: 6. The beam shown in the figure carries DL= 10.5kN/m (including its own weight) and LL = 13.5kN/m.…

A:

Q: The composite shaft, consisting of aluminum, copper, and steel sections, is subjected to the loading…

A: Given :

Q: A pretensioned member with a dimension of 250mm x 360mm is subject to an eccentric

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Q: 3m 200 ↓ 8m GkN/m B 十 -2m-

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Q: A simply supported beam is carrying a uniform load. If the beam properties are given below, what is…

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Q: A composite bar is rigidly attached to the wall at A as shown. Axial loads are applied at the…

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Q: The composite shaft shown in the figure consists of a bronze sleeve (1) securely bonded to an inner…

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Q: A high-strength steel band saw, 26 mm wide, runs over pulleys 700 mm in diameter. What minimum…

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Q: A composite beam is made of two brass (E - 111 GPa) bars bondedt subjected to a bending moment of…

A: Given:- a = 10 mm b = 65 mm c = 20 mm d = 45 mm BM = 250 N-m

Q: Problem 3.2 (CE BOARD NOVEMBER 2003, CE BOARD NOVEMBER 2004) The lower ends of the three bars shown…

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Q: In a reinforced concrete section, the stress at the extreme fibre is compression is 5.80 MPa. The…

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Q: A fully bonded aluminum shell and steel inner Outer core bar is axially loaded. Find the normal…

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Q: 11.18 A long, flat steel bar 4 in. wide and 3 in. thick is reduced in width to 3 in. There are…

A: Applied load (P)=12000lb D=4in d=3 in Thickness (t)=3/8 in

Q: For the composite beam shown in the figure below, determine the maximum stresses in steel and…

A: Solution: Considering the diagram: The stresses in aluminium and steel is calculated using bending…

Q: Required information A steel bar (Es= 210 GPa) and an aluminum bar (Ea = 70 GPa) are bonded together…

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Q: A typical aluminum-alloy scuba diving tank is shown. The outside diameter of the tank is 200 mm and…

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Q: Compute for the concrete stress in Mpa at the top fiber of the given transformed beam se M = 50…

A: Given, Moment M=50 kN-m b=300 mm d=600 mm

Q: A high-strength steel band saw, 22 mm wide, runs over pulleys 800 mm in diameter. What minimum…

A: Given data: Width=22 mm Diameter of pulley=800 mm E==230 Gpa Flexural stress=350   It is asked to…

Q: Problem 2 A composite beam made of steel and concrete has the dimensions and layout shown below.…

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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.