A two-tier system to repair bridges is supported by two steel cables for each platform. Lengths of the cables are lA = 50 in. and lp = 190 in. Assume that two 190 lb workers are going to be standing on the system to repair a bridge, one on each platform. The following design requirement must be met: the stretch of each cable must be less than 0.02 in. at the worst-case loading condition for each cable. 250 lb 190 io 400 lb

A two-tier system to repair bridges is supported by two steel cables for each platform. Lengths of the cables are lA = 50 in. and lp = 190 in. Assume that two 190 lb workers are going to be standing on the system to repair a bridge, one on each platform. The following design requirement must be met: the stretch of each cable must be less than 0.02 in. at the worst-case loading condition for each cable. 250 lb 190 io 400 lb

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Cables

Cables are collections of wires, alternatively referred to as a cord, connector, or plug. They are one or more wires covered in a plastic covering that allows for the transmission of power or data between devices. The earliest use of recognizable electrical cable was the early commercialized telegraph lines. These were iron-made and tedious to produce and install cabling.

Question

A two-tier system to repair bridges is supported by two steel cables for each platform. Lengths of the cables are
la = 50 in. and lp = 190 in. Assume that two 190 lb workers are going to be standing on the system to
repair a bridge, one on each platform. The following design requirement must be met: the stretch of each cable
must be less than 0.02 in. at the worst-case loading condition for each cable.
140 in.
250 lb
190 in.
400 lb
Determine the minimum diameter required for each cable.
(Express your answers using two decimal places.)
Cable at A:
in.
Cable at B:
in.
Cable at C:
in.
Cable at D:
in.

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