Introduction to Sustainable Civil Engineering Design
1st Edition
ISBN: 9780134013916
Author: Neumann
Publisher: PEARSON
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Chapter 1, Problem 3EDDS
To determine
Find whether the collapse of the bridge without warning is better described by a system with a feedback (figure 1.11) or a system lacking a feedback (figure 1.10).
Explain how a smart bridge responds to a risk of overloading or collapsing condition.
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During an investigation of a bridge collapse, you will investigate another similar bridge, and find it to be only marginally safe. You contact the governmental agency responsible for the bridge and inform them of your concern for the safety of the structure. You were told that the agency is aware of this situation and has planned to provide in next year’s budget for its repair. Until then, the bridge must remain open to traffic. Without this bridge, emergency vehicles such as police and fire apparatus would have to use an alternate route that would increase their response time by approximately twenty minutes. You are thanked for your concern and asked to say nothing about the condition of the bridge. The agency is confident that the bridge will be safe.
Using Internet resources, watch a few video clips on the Minnesota I35 bridgecollapse on August 1, 2007, read material online about the collapse, and tryto understand the reasons behind the failure of the bridge. Investigate if thefailure was brittle or ductile overall.
The yearly transition probabilities of various condition states of deck component of bridges on urban Interstate highways in a U.S. state are given in Table 1. In 2018, there are 1771, 2751, 1771, and 578 bridges in the Excellent, Good, Fair, and Poor condition states, respectively. Find the number of bridges that are expected to be in the Excellent, Good, Fair, and Poor conditions in 2022. Assume that no major repairs were done during the period, so the original transition matrix stays unchanged
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Introduction to Sustainable Civil Engineering Design
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