<rss version="2.0" xmlns:atom="https://www.w3.org/2005/Atom">
  <channel>
    <title>Transport Research International Documentation (TRID)</title>
    <link>https://trid.trb.org/</link>
    <atom:link href="https://trid.trb.org/Record/RSS?s=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" rel="self" type="application/rss+xml" />
    <description></description>
    <language>en-us</language>
    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
    <image>
      <title>Transport Research International Documentation (TRID)</title>
      <url>https://trid.trb.org/Images/PageHeader-wTitle.jpg</url>
      <link>https://trid.trb.org/</link>
    </image>
    <item>
      <title>NONUNIFORM TORSION OF COMPOSITE BEAMS</title>
      <link>https://trid.trb.org/View/105569</link>
      <description><![CDATA[THE GENERAL EXPRESSIONS GOVERNING THE BEHAVIOR OF A BEAM OF COMPOSITE, OPEN, THIN-WALLED CROSS SECTION SUBJECTED TO NONUNIFORM TORSION ARE DEVELOPED. THE EXPRESSIONS ARE REWRITTEN IN SERIES FORM FOR THE CASE IN WHICH THE CROSS SECTION IS COMPOSED OF A SERIES OF FLAT PLATES OF DIFFERENT MATERIALS. NUMERICAL RESULTS ARE PRESENTED FOR A COMPOSITE TEE-SECTION CONSISTING OF A CONCRETE SLAB CONNECTED TO A BEAM. THESE RESULTS INDICATE A SIGNIFICANT INCREASE IN THE TORSIONAL RESISTANCE OF SUCH SECTIONS DUE TO COMPOSITE ACTION. EQUATIONS FOR DETERMINING THE TORSIONAL PROPERTIES OF COMPOSITE SECTIONS USED IN BUILDINGS AND BRIDGES ARE ALSO PRESENTED. /AUTHOR/]]></description>
      <pubDate>Thu, 29 Sep 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/105569</guid>
    </item>
    <item>
      <title>BUCKLING AND FREQUENCIES OF LONG VERTICAL PIPES</title>
      <link>https://trid.trb.org/View/103696</link>
      <description><![CDATA[THE CRITICAL LENGTHS (OR WEIGHTS) AND THE NATURAL FREQUENCIES OF TRANSVERSE VIBRATION OF VERTICAL PIPES HAVING DIFFERENT END CONSTRAINTS ARE DETERMINED BY THE USE OF A POWER SERIES. IT IS ASSUMED THAT THE PIPES ARE SUBJECTED TO A HYDROSTATIC PRESSURE. DUE TO GRAVITY, THE AXIAL FORCE IN A PIPE VARIES LINEARLY ALONG THE LENGTH OF THE PIPE. THE CRITICAL LENGTHS ARE GIVEN IN A DIMENSIONLESS FORM, AND THE FREQUENCIES ARE PRESENTED NUMERICALLY AS A FUNCTION OF THE WEIGHT-LENGTH PARAMETER. THE PHYSICAL INTERPRETATIONS OF THE RESULTS ARE ALSO GIVEN. /ASCE/]]></description>
      <pubDate>Thu, 04 Aug 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/103696</guid>
    </item>
    <item>
      <title>AN INVESTIGATION OF THE APPLICABILITY OF THE THIRD DEGREE FUNCTIONAL POLYNOMIAL MODEL TO NON-LINEAR SHIP MOTIONS PROBLEMS</title>
      <link>https://trid.trb.org/View/392093</link>
      <description><![CDATA[The objectives of this work were to explore the applicability of the third degree functional polynomial model to nonlinear seakeeping problems, and to attempt the development of an approach by which third degree non-linearities in observed responses of ships to waves might be interpreted. Basic approaches to the deterministic characterization of such systems are discussed, and basic identification theory for the random sea case is developed. The latter involves the estimation of a new entity called the cross- tri-spectrum.]]></description>
      <pubDate>Thu, 21 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/392093</guid>
    </item>
    <item>
      <title>PROGRESS REPORT - STUDY OF EFFECT OF NEW VEHICLE WEIGHT LAWS ON STRUCTURES</title>
      <link>https://trid.trb.org/View/101849</link>
      <description><![CDATA[THE REPORT CONSISTS OF TWO VOLUMES. IN VOLUME I, THE DEVELOPMENT OF ORTHOTROPIC PLATE EQUATIONS IS PRESENTED AND APPLIED TO BRIDGE STRUCTURES. A TRIGONOMETRIC SERIES SOLUTION AND A FINITE DIFFERENCE SOLUTION OF THE PLATE EQUATIONS ARE COMPARED. AN ORTHOTROPIC BRIDGE DESIGN EXAMPLE IS GIVEN, USING TWO ALTERNATE METHODS, SLOPE DEFLECTION AND FINITE DIFFERENCE METHODS. AN EXTENSIVE BIBLIOGRAPHY ON ORTHOTROPIC PLATES, LOAD DISTRIBUTION ON BRIDGES, BRIDGE DECKS AND SLABS AND RELATED TOPICS IS GIVEN. VOLUME II CONTAINS THIRTY COMPUTER PROGRAMS AND THEIR DESCRIPTION.]]></description>
      <pubDate>Fri, 01 Jul 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/101849</guid>
    </item>
    <item>
      <title>SLOW FINITE DEFORMATIONS OF VISCOUS SOLIDS</title>
      <link>https://trid.trb.org/View/124007</link>
      <description><![CDATA[A NUMERICAL APPROACH TO THE STUDY OF FINITE, QUASI-STATIC PLANE DEFORMATIONS OF VISCOUS SOLIDS IS INTRODUCED. THE PROBLEM IS FORMULATED IN TERMS OF A SERIES OF INCREMENTAL PROBLEMS. A MODIFIED VERSION OF THE FINITE ELEMENT METHOD IS EMPLOYED IN THE SOLUTION OF THIS SERIES OF PROBLEMS. IT IS HOPED THAT THIS APPROACH MAY PROVE CONVENIENT FOR THE STUDY OF CERTAIN PROBLEMS ASSOCIATED WITH GEOLOGICAL STRUCTURES. THE EXAMPLE OF THE FINITE COMPRESSION OF A BODY WITH AN INITIALLY IMPERFECT FREE SURFACE MIGHT SHED SOME LIGHT ON THE FORMATION OF MULLIONS. /AUTHOR/]]></description>
      <pubDate>Thu, 26 May 1994 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/124007</guid>
    </item>
    <item>
      <title>A NOTE ON THE FORM OF SHIP ROLL DAMPING</title>
      <link>https://trid.trb.org/View/63243</link>
      <description><![CDATA[The objective of the present work was to develop an approximation to the conventional mixed linear-plus-quadratic ship roll damping model so that analytical obstacles could be overcome in the application of the functional series expansion to non-linear ship rolling. A mixed linear-plus-cubic approximation was found to be reasonable for this purpose. In the course of analyses there were indications that this model may be more generally valid than had initially been thought. (Author)]]></description>
      <pubDate>Sun, 16 Jan 1977 00:00:00 GMT</pubDate>
      <guid>https://trid.trb.org/View/63243</guid>
    </item>
  </channel>
</rss>