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An automatic level with an internal focusing telescope was set up somewhere at mid-length of a long-span steel bridge. The rod readings tabulated below were observed on a stadia and held successively at the vicinity of the concrete abutments in the southern and northern approaches of the bridge. UPPER READINGS ROD MIDDLE LOWER POSITION UPPER (m) (m) (m) Rod at Southern 2.94 1.71 0.47 Approach Rod at Northern 3.60 2.09 0.58 Approach Determine the length of the bridge if the stadia interval factor if the instrument is 97.4 and stadia constant is 0.10 m

An automatic level with an internal focusing telescope was set up somewhere at mid-length of a long-span steel bridge. The rod readings tabulated below were observed on a stadia and held successively at the vicinity of the concrete abutments in the southern and northern approaches of the bridge. UPPER READINGS ROD MIDDLE LOWER POSITION UPPER (m) (m) (m) Rod at Southern 2.94 1.71 0.47 Approach Rod at Northern 3.60 2.09 0.58 Approach Determine the length of the bridge if the stadia interval factor if the instrument is 97.4 and stadia constant is 0.10 m

Structural Analysis
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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An automatic level with an internal focusing telescope was set up somewhere at mid-length of a long-span steel bridge. The rod readings tabulated below were observed on a stadia and held successively at the vicinity of the concrete abutments in the southern and northern approaches of the bridge. UPPER READINGS ROD MIDDLE LOWER POSITION UPPER (m) (m) (m) Rod at Southern 2.94 1.71 0.47 Approach Rod at Northern 3.60 2.09 0.58 Approach Determine the length of the bridge if the stadia interval factor if the instrument is 97.4 and stadia constant is 0.10 m
Transcribed Image Text:An automatic level with an internal focusing telescope was set up somewhere at mid-length of a long-span steel bridge. The rod readings tabulated below were observed on a stadia and held successively at the vicinity of the concrete abutments in the southern and northern approaches of the bridge. UPPER READINGS ROD MIDDLE LOWER POSITION UPPER (m) (m) (m) Rod at Southern 2.94 1.71 0.47 Approach Rod at Northern 3.60 2.09 0.58 Approach Determine the length of the bridge if the stadia interval factor if the instrument is 97.4 and stadia constant is 0.10 m
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