A wooden beam is fabricated by nailing together three boards as shown. The boards have dimensions of b₁ = 13 in., d₁ = 1.0 in., b₂ = 1.0in., d₂ = 13 in., b3 = 7 in., and d3 = 1.0 in. The vertical distance from the bottom edge of the section to the centroid is 8.773 in. Themoment of inertia of the section about the z axis is 1111 in.4. Determine the maximum shear stress in the cross section if the internalshear force is V = 470 lb. Assume that the shear force V acts in the y direction.b₁y |Nail Ad₁Nb₂Answer:Nail Bb3d2d3Tmaxipsi

Answered: Image /qna-images/answer/40d148e5-3cde-47be-bab1-bdd74a95958c.jpg

Answered: A wooden beam is fabricated by nailing…

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 wooden beam is fabricated by nailing together three boards as shown. The boards have dimensions of b1 = 17 in., d1 = 2.4 in., b2 = 2.4 in., d2 = 15 in., b3 = 9 in., and dg = 2.4 in. (a) Determine the distance from the bottom edge of the section to the centroid. (b) Determine the moment of inertia of the section about the z axis. (c) Determine the maximum shear stress in the cross section if the internal shear force is V = 520 lb. Assume that the shear force V acts in the y direction. (d) Consider nail B that connects the bottom flange to the beam web. If the nails used at B can provide 120 lb of horizontal resistance (in the x direction), determine the maximum nail spacing s (in thex direction) that can be used for nail B. Assume V = 520 Ib. (e) If a bending moment applied about the z axis produces a tension normal stress of ox = 740 psi at the bottom of the cross section, determine the compression normal stress produced at the top of the cross section. b1 Nail A di d2 b2 d3 Nail B…
Determine the dimension b so that the joint is as strong as the boards. ___________ inches in 2 decimal places.
A wooden beam is fabricated by nailing together three pieces of dimension lumber as shown. The cross-sectional dimensions of the beam are also shown. The centroid is 3.4 in. below the top surface of the beam, and the moment of inertia about the z axis is 230.9 in.4. The beam must support an internal shear force of V = 365 Ib. If each nail can provide 120 Ib of horizontal resistance, determine the maximum spacing sfor the nails. 2 in. 4 in. 2 in. 2 in. 8 in. O 4.86 in. 8.32 in. O 7.91 in. 9.36 in. O 5.59 in.
A wooden beam is fabricated from one 2 × 10 and two 2 × 10 dimension lumber boards to form the double-tee cross section shown. The beam flange is fastened to the stem with nails. Each nail can safely transmit a force of 212 lb in direct shear. The allowable shear stress of the wood is 72 psi. Assume b1 = 10 in., b2 = 2 in., d1 = 2 in., d2 = 10 in.(a) If the nails are uniformly spaced at an interval of s = 3.4 in. along the span, what is the maximum internal shear force V that can be supported by the double-tee cross section?(b) What nail spacing s would be necessary to develop the full strength of the double-tee shape in shear? (Full strength means that the maximum horizontal shear stress in the double-tee shape equals the allowable shear stress of the wood.)
Q4: The aluminum block has a rectangular cross section and is subjected to an axial compressive force of 8 kip. If the 1.5-in. side changed its length to 1.500132 in., determine the Poisson's ratio. Assume modulus of elasticity (E) = 10 x 10^3 ksi 1.5 in.j 2 in. 8 kip- 8 kip 3 in.-
By internal couple method, what is the maximum stress on the steel side of the transformed section? Consider the beam section shown below. Express your final answer in ksi and use two decimal places. 24" 14 As=3 IN. ² SECTION E (STEEL) = 29 x 10³ K.5.1. E (CONC) = 3.2 x 10³ K.5.1. M = 9 ALLOW. f(STEEL) = 20 K.5.1. ALLOW. f (CONC)= 1.35 K.S.I.
3. The lower ends of the 3 bars in the figure are at the same level before the rigid homogenous 18M block is attached. Each steel bar has an area of 566 mm^2 and E=200GPa. For the bronze bar, the area is 866 mm^2 and E=83GPA. Find the stresses developed in each bar. Steel L=Im Bronze L=1.6 m Steel L=Im 18 Mg
A bronze pipe (1) is to be connected to an aluminum alloy pipe (2) at flange B. When put in place, however, a gap of A = 0.40 in. exists between the two pipes. Bronze pipe (1) has an elastic modulus of E1 = 16,000 ksi, a cros5-sectional area of A1 = 2.43 in.?, and a length of Lq = 6.4 ft. Aluminum alloy pipe (2) has an elastic modulus of E2 = 10,000 ksi, a cro55-sectional area of A2 = 1.26 in.?, and a length of L2 = 94 ft. If bolts are inserted in the flanges and tightened so that the gap at B is closed, determine: (a) the normal stresses produced in each of the members. (b) the final position of flange B with respect to supportA. L1 L2 В (2) (1) Answer: (a) 01 = ksi 02 = ksi (b) ÕBA = in.
a. Determine the centroid of the composite figure.b. Calculate the moment of inertia with respect to the red horizontal axis.c. Calculate the moment of inertia with respect to the red vertical axis. given : L5 = 6 L6 = 4 L7 = 6
2/3 700 mm 1) A typical cross-section of a properly reinforced con-crete beam is shown in the figure below. The material properties are summarized below. Use an effective depth of 600 mm. 500 mm Given: fy = 400 MPa = 0.65 75% = 0.85 E = 200 000 MPa Y See the Table 1 f' 48MPa - Bar : 3-30M a) Is the beam properly reinforced/over-reinforced/ balanced Determine the factored moment resistance? b) Consider the beam section "a) "above. However, due to embedded items, the reinforcing is raised by 65 mm, such that the effective depth is reduced to 585 mm (Draw the new cross-section view). Find the factored moment resistance considering the new reinforcement layout. c) Comment on the effect of the change in reinforcement location on the moment resistance d) Refer to the beam section from Part "b" above. The same contractor reported that, due to some problems related to batching, the actual 28-day concrete strength is reduced by 10%. What is the new F'c? Find the factored moment resistance for…
my answer is wrong please help me solve
A wooden beam is fabricated from one 2 × 16 and two 2 × 10 dimension lumber boards to form the double-tee cross-section shown. The beam flange is fastened to the stem with nails. Each nail can safely transmit a force of 176 lb in direct shear. The allowable shear stress of the wood is 83 psi. Assume b1 = 16 in., b2 = 2 in., d1 = 2 in., d2 = 10 in.(b) What nail spacing s would be necessary to develop the full strength of the double-tee shape in shear? (Full strength means that the maximum horizontal shear stress in the double-tee shape equals the allowable shear stress of the wood.) [Answer: s = 1.17 in]

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