EBK STRUCTURAL ANALYSIS
5th Edition
ISBN: 9780100469105
Author: KASSIMALI
Publisher: YUZU
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Chapter 2, Problem 15P
To determine
Find the external wind pressure acting on the windward and leeward walls of the building.
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A traffic count taken between 7:00 a.m. and 2:00 p.m. on a rural highway found the following hourly volumes.
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If these data were collected on a Tuesday in February, estimate the AADT (in veh/day) on this section of highway. Assume that the expansion factors given in this table, this table, and this table apply.
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A project schedule has been updated. The activity placement of spread footing concretewas originally scheduled to begin as early as day 10. The activity duration is 4 days. The actualstart day was day 12. The original schedule had a calculated total float of 7 days for this activity.The recalculated total float for the activity, when updated, would be
In preparation for a public hearing, an engineer needs to estimate the travel time savings for a proposed highway bypass of a small city in a rural area. The existing highway goes through the downtown area for 4.1 miles between the points where the bypass will connect.
(a) If the engineer anticipates a standard deviation of 7 mi/h and would like a 95% confidence of estimating the mean speed within ±4 mi/h, how many runs should a travel time study include? (Enter the minimum number of runs that achieves a 95% confidence level.)
runs
(b) If the engineer measures an average speed of 34.9 mi/h through the town and the bypass is expected to operate at speeds of 65 mi/h over a distance of 6.2 miles, what is the expected travel time saving (in minutes) per vehicle?
minutes
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EBK STRUCTURAL ANALYSIS
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