Instruments for Measurement of Dynamic Stresses (or Strains) in Temporary Steel Structures

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AuthorSearch for:
TypeArticle
Journal titleBuilding Note
Volume7
Pages14
AbstractMeasurement of stresses in temporary steel structures, such as girders, struts and piles, used during construction of the Yonge Street Subway are being made in co-operation with the Toronto Transportation Commission. While stresses due to dead load and earth pressure are static, it is necessary to obtain a continuous strain record by means of an oscillograph to determine the additional dynamic stresses due to live load. The objective is to ascertain the maximum stresses and the frequency of their occurrence in order to compute the maximum loads and their distribution to determine whether the design loads used at present are too conservative. Suitable instruments which could be used for such an investigation are described and relative merits of the equipment are discussed. Lists of manufacturers of strain gauges and amplifying and recording equipment are included.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedNo
IdentifierDBR-BN-7
NRC number5961
NPARC number20375424
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Record identifier5c1cd4de-208e-4570-86f3-d36ac9f37b0b
Record created2012-07-23
Record modified2016-05-09
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