EXAMPLE 8.6 A prestressed I-section has the following properties: Area = 55 x 10³ mm² Second moment of area = 189 × 107 mm* Statical moment about the centroid = 468 x 10 mm³ Thickness of web = 50 mm It is prestressed horizontally by 24 wires of 5 mm diameter and vertically by similar wires at 150 mm centres. All the wires carry a tensile stress of 900 N/mm². Calculate the principal stresses at the centroid when a shearing force of 80 kN acts upon this section.
EXAMPLE 8.6 A prestressed I-section has the following properties: Area = 55 x 10³ mm² Second moment of area = 189 × 107 mm* Statical moment about the centroid = 468 x 10 mm³ Thickness of web = 50 mm It is prestressed horizontally by 24 wires of 5 mm diameter and vertically by similar wires at 150 mm centres. All the wires carry a tensile stress of 900 N/mm². Calculate the principal stresses at the centroid when a shearing force of 80 kN acts upon this section.
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
Related questions
Question

Transcribed Image Text:EXAMPLE 8.6 A prestressed I-section has the following properties:
Area = 55 x 10³ mm²
Second moment of area = 189 × 107 mm*
Statical moment about the centroid = 468 x 10 mm³
Thickness of web = 50 mm
It is prestressed horizontally by 24 wires of 5 mm diameter and vertically by similar
wires at 150 mm centres. All the wires carry a tensile stress of 900 N/mm². Calculate
the principal stresses at the centroid when a shearing force of 80 kN acts upon this
section.
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 2 steps with 2 images

Recommended textbooks for you

Applications and Investigations in Earth Science …
Earth Science
ISBN:
9780134746241
Author:
Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:
PEARSON

Exercises for Weather & Climate (9th Edition)
Earth Science
ISBN:
9780134041360
Author:
Greg Carbone
Publisher:
PEARSON

Environmental Science
Earth Science
ISBN:
9781260153125
Author:
William P Cunningham Prof., Mary Ann Cunningham Professor
Publisher:
McGraw-Hill Education

Applications and Investigations in Earth Science …
Earth Science
ISBN:
9780134746241
Author:
Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:
PEARSON

Exercises for Weather & Climate (9th Edition)
Earth Science
ISBN:
9780134041360
Author:
Greg Carbone
Publisher:
PEARSON

Environmental Science
Earth Science
ISBN:
9781260153125
Author:
William P Cunningham Prof., Mary Ann Cunningham Professor
Publisher:
McGraw-Hill Education

Earth Science (15th Edition)
Earth Science
ISBN:
9780134543536
Author:
Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:
PEARSON

Environmental Science (MindTap Course List)
Earth Science
ISBN:
9781337569613
Author:
G. Tyler Miller, Scott Spoolman
Publisher:
Cengage Learning

Physical Geology
Earth Science
ISBN:
9781259916823
Author:
Plummer, Charles C., CARLSON, Diane H., Hammersley, Lisa
Publisher:
Mcgraw-hill Education,