A PROB. 1.8-12 a 2P B (a) D XII Gusset plate Rivet (b) Section
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
100%
Transcribed Image Text:A
PROB. 1.8-12
a
2P
B
(a)
G
D
Gusset plate
Rivet
FCF
FBC
6.4 mm
Truss bars
➖➖➖➖➖➖➖➖----0-
(b) Section a-a
12 mm
(c)
FCG
P
Gusset
-plate
-Rivet
FCD
![1.8-12 A plane truss is subjected to loads 2P and P at
joints B and C, respectively, as shown in the figure part a.
The truss bars are made of two L102 x 76 x 6.4 steel
angles [see Table F-5(b): cross-sectional area of the two
angles, A = 2180 mm², figure part b] having an ultimate
stress in tension equal to 390 MPa. The angles are con-
nected to an 12 mm-thick gusset plate at C (figure part c)
with 16-mm diameter rivets; assume each rivet transfers an
equal share of the member force to the gusset plate. The
ultimate stresses in shear and bearing for the rivet steel are
190 MPa and 550 MPa, respectively.
Determine the allowable load Pallow if a safety factor
of 2.5 is desired with respect to the ultimate load that can
be carried. (Consider tension in the bars, shear in the riv-
ets, bearing between the rivets and the bars, and also bear-
ing between the rivets and the gusset plate. Disregard
friction between the plates and the weight of the truss
itself.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F75d6654b-e353-44a0-a5c7-21e50a28b804%2F31cd4990-d7fa-4293-b592-cc6284089ef3%2F3ktfrfc_processed.png&w=3840&q=75)
Transcribed Image Text:1.8-12 A plane truss is subjected to loads 2P and P at
joints B and C, respectively, as shown in the figure part a.
The truss bars are made of two L102 x 76 x 6.4 steel
angles [see Table F-5(b): cross-sectional area of the two
angles, A = 2180 mm², figure part b] having an ultimate
stress in tension equal to 390 MPa. The angles are con-
nected to an 12 mm-thick gusset plate at C (figure part c)
with 16-mm diameter rivets; assume each rivet transfers an
equal share of the member force to the gusset plate. The
ultimate stresses in shear and bearing for the rivet steel are
190 MPa and 550 MPa, respectively.
Determine the allowable load Pallow if a safety factor
of 2.5 is desired with respect to the ultimate load that can
be carried. (Consider tension in the bars, shear in the riv-
ets, bearing between the rivets and the bars, and also bear-
ing between the rivets and the gusset plate. Disregard
friction between the plates and the weight of the truss
itself.)
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 3 steps with 3 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