Observe diagram and dimensions carefully . Give me right solution according to the question. The 6 x 12-in. timber beam has been strengthened by bolting to it the steel reinforcement shown. The modulus of elasticityfor wood is 1.8 × 10° psi and for steel, 29 x 10° psi. Knowing that the beam is bent about a horizontal axis by a couple ofmoment M= 454 kip-in., determine the maximum stress in the wood and in the steel.6 in.-12 in.C8 X 11.52 ksi (include a negative sign).The maximum compressive stress in the block of wood isThe maximum tensile stress in the steel isksi.

Data Given:Timber size = 6 × 12 in.Ew = 1.8 ×106 psiEs = 29 × 106 psiM = 454 kip-in Asked: Maximum…

Answered: The 6 × 12-in. timber beam has been…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A box beam is constructed from four pieces of wood, glued together as shown. If the moment acting on the cross-section is 15 kN-m, determine the flexural stress in MPa at point A Where: tw = 24 mm; and d = 288 mm
A floor is supported by 75 mm x 200 mm wooden joists spaced at 400mm on centers with an effective span of 3m. The total floor load transmitted to the joists is 5kPa. If the unit weight of wood is 6.3 kN/m3 and elastic modulus of wood is 12x103 MPa. W Tributary 400 6001 mm -3m Was kPa FO 400 in Floor (a) Determine the maximum bending stress (fb). (b) Determine the maximum shearing stress (fy). (c) Determine the maximum deflection
Calculate Tension BD if P = 100 kN.
A floor opening in a building is to be closed by pouring a concrete slab. The proposed framing is composed ofwood joist assumed to be simply supported and given with a total load of 4 kPa. What is the maximum flexural stress in 40 mm x 190 mm wood joist if its span is 3 m and spaced atevery 0.30 m on centers?a. 5.61 MPa c. 6.78 MPab. 7.23 MPa d. 4.65 MPa What is the maximum shearing stress in the said joists?a. 0.40 MPa c. 0.36 MPab. 0.69 MPa d. 0.54 MPa
A masonry terrace of 75 mm concrete surface with 25 mm cement tiles rests on a 75mm×200mm lumber spaced @300mm on centers acting as simple beam with an effective span of 3.6 m. Weight of wood is 7.5 kN/m3 and masonry to be 24kN/m3. Ew=1300 mPa. The allowable stresses are 14 mPa for bending, 0.80 mPa for shear parallel to grain and deflection is 1/360 of span. What is maximum superimposed load that can be carried by the beam?
A masonry terrace of 65mm thick concrete surface with 35mm thick cement tiles rest on 100mmx 200mmtimber spaced at 250mm on centers acting as simple beam with effective span of 3.8 meters. Weight of woodis7.5Kn/M^3 and masonry to be 18KN/m^3. Ew = 13.8GPa. Given:Allowable stresses for bending = 12 MPaFor shear parallel to the grain = 0.9 MPaDeflection = 1/360 of spana. Determine the uniform load it could support with respect to bending.
2. A reinforced concrete beam having a width of 280 mm and a total depth of 600 mm isreinforced for tension at the bottom with 6 - 36 mmɸ bars placed on two layers, 4 bars onfirst layer and 2 bars on second layer. Compute the effective depth of the beam and theclear horizontal spacing between bars.
A doubly reinforced beam, which have a base of 310 mm, and an effective depth of 410 mm, is reinforced with steel area of 2263 sq. mm at the bottom, and 1232 sq. mm on the top. Take d' = 70 mm, fc' = 21 MPa, and fy = 345 MPa. determine 1.) a 2.) the value of fs' (actual stress of the compression bars) 3.) value of ρbalance 4.) Mu
•Timber beamSafe working stress = 25 MPaCross-section dimensions:height = 119 mm,width = 66 mmProving ring number 293. Steel beam Safe working stress = 200 MPa Cross-section dimensions:external height = 149 mm,external width = 50 mm,wall thickness = 3.0 mm,Proving ring number 1522.1)Calculate safe max bending moment in the central part of the beam using Mmax = (I)(max stress)/(D/2)2) calculate Safe applied force in the proving ring or tie rod, assuming a symmetrical setup as in the photowith a ‘lever arm’ of 600 mm
2.The concrete post in Fig. (a) is reinforced axiallywith four symmetrically placed steel bars, each ofcross-sectional area 900 mm2. Compute thestress in each material when the 1000-kN axialload is applied. The moduli of elasticity are 200Gpa for steel and 14 Gpa for concrete.
Calculate the required amount of reinforcement (in in2) considering the ultimate moment below. Use english units. Note: Use the following equations for minimum reinforcement in English units. Pmin for flexure = (3*sqrt (f'c))/fy greater than or equal to 200/fy f'c = 3000 psi fy = 40 ksi Mult = 200 ft-k
4.17. A rectangular beam made using concrete with f c ′ = 6000 psi and steel with f y = 60,000 psi has a width b = 20 in., an effective depth of d = 17.5 in., and a total depth of h = 20 in. The concrete modulus of rupture f r = 530 psi. The elastic moduli of the concrete and steel are, respectively, E c = 4,030,000 psi and E s = 29,000,000 psi. The tensile steel consists of four No. 11 (No. 36) bars. ( a ) Find the maximum service load moment that can be resisted without stressing the concrete above 0 .45 f c′ or the steel above 0.40 f y . ( b ) Determine whether the beam will crack before reaching the service load. ( c ) Compute the nominal flexural strength of the beam. ( d ) Compute the ratio of the nominal flexural strength of the beam to the maximum service load moment, and compare your findings to the ACI load factors and strength reduction factor.

SEE MORE QUESTIONS

Recommended textbooks for you

Structural Analysis

Civil Engineering

ISBN:

9781337630931

Author:

KASSIMALI, Aslam.

Publisher:

Cengage,

Structural Analysis (10th Edition)

Civil Engineering

ISBN:

9780134610672

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Principles of Foundation Engineering (MindTap Cou…

Civil Engineering

ISBN:

9781337705028

Author:

Braja M. Das, Nagaratnam Sivakugan

Publisher:

Cengage Learning

Structural Analysis

Civil Engineering

ISBN:

9781337630931

Author:

KASSIMALI, Aslam.

Publisher:

Cengage,

Structural Analysis (10th Edition)

Civil Engineering

ISBN:

9780134610672

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Principles of Foundation Engineering (MindTap Cou…

Civil Engineering

ISBN:

9781337705028

Author:

Braja M. Das, Nagaratnam Sivakugan

Publisher:

Cengage Learning

Fundamentals of Structural Analysis

Civil Engineering

ISBN:

9780073398006

Author:

Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning

Publisher:

McGraw-Hill Education

Sustainable Energy

Civil Engineering

ISBN:

9781337551663

Author:

DUNLAP, Richard A.

Publisher:

Cengage,

Traffic and Highway Engineering

Civil Engineering

ISBN:

9781305156241

Author:

Garber, Nicholas J.

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS