A wooden beam is fabricated from one 2 x 8 and two 2 x 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 213 Ib in direct shear. The allowable shear stress of the wood is 76 psi. Assume b1=8 in., b2= 2 in., d1= 2 in., d2= 10 in. (a) If the nails are uniformly spaced at an interval of s = 2.9 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.) b1 Nails d2 Answers: (a) V = i Ib. (b) s = i in.
A wooden beam is fabricated from one 2 x 8 and two 2 x 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 213 Ib in direct shear. The allowable shear stress of the wood is 76 psi. Assume b1=8 in., b2= 2 in., d1= 2 in., d2= 10 in. (a) If the nails are uniformly spaced at an interval of s = 2.9 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.) b1 Nails d2 Answers: (a) V = i Ib. (b) s = i in.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:A wooden beam is fabricated from one 2 x 8 and two 2 x 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 213 Ib in direct shear. The allowable shear stress
of the wood is 76 psi. Assume b1=8 in., b2= 2 in., d1= 2 in., d2= 10 in.
(a) If the nails are uniformly spaced at an interval of s = 2.9 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.)
b1
Nails
d2
Answers:
(a) V =
i
Ib.
(b) s =
i
in.
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!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
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.Recommended textbooks for you
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 (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
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning