iss shown is spaced at 5.5 m apart. Purlins are located at the joints and halfway between the joints. Sag rods are located y between the trusses. The weight of the roofing materials, including the weight of purlins and insulation, is 0.85 KPa and rvice live load is 1.20 KPa of horizontal projection of the roof surface. The allowable total (DL+Lr) deflection is L/240 wher

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

Find;

-Compute the maximum service load moment about the y-axis in KN.m. 0

- If a W12 x 14 is used for the purlins, compute the allowable moment strength for the x-axis in

   KN.m. 0

-Is a W12 x 14 adequate for the purlins considering moment, shear and deflection? 0

-If a W10 x 12 is used for the purlins, compute the allowable moment strength for the y-axis in KN.m. 0

-Select the lightest W-shape for the purlins considering moment, shear and deflection.0

The truss shown is spaced at 5.5 m apart. Purlins are located at the joints and halfway between the joints. Sag rods are located
midway between the trusses. The weight of the roofing materials, including the weight of purlins and insulation, is 0.85 KPa and the
roof service live load is 1.20 KPa of horizontal projection of the roof surface. The allowable total (DL+Lr) deflection is L/240 where L
is the length of the purlins between supports. A992 steel (Fy= 350 MPa and Fu= 450 MPa) is used. Use ASD.
604.5m= 27m
4,5m
Transcribed Image Text:The truss shown is spaced at 5.5 m apart. Purlins are located at the joints and halfway between the joints. Sag rods are located midway between the trusses. The weight of the roofing materials, including the weight of purlins and insulation, is 0.85 KPa and the roof service live load is 1.20 KPa of horizontal projection of the roof surface. The allowable total (DL+Lr) deflection is L/240 where L is the length of the purlins between supports. A992 steel (Fy= 350 MPa and Fu= 450 MPa) is used. Use ASD. 604.5m= 27m 4,5m
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Compression members
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.
Similar questions
Recommended textbooks for you
Structural Analysis
Structural Analysis
Civil Engineering
ISBN:
9781337630931
Author:
KASSIMALI, Aslam.
Publisher:
Cengage,
Structural Analysis (10th Edition)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Sustainable Energy
Sustainable Energy
Civil Engineering
ISBN:
9781337551663
Author:
DUNLAP, Richard A.
Publisher:
Cengage,
Traffic and Highway Engineering
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning