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The shear coupling between the individual Winkler-spring components and the peripheral discontinuity at the boundaries between the loaded and the unloaded soil surfaces are taken into account in this proposed model. The element flexibility matrix is derived based on the virtual force principle and forms the core of the exact element stiffness matrix. The sixth-order governing differential compatibility of the problem is revealed using the virtual force principle and solved analytically to obtain the exact force interpolation functions. The matrix virtual force equation is employed to obtain the exact element flexibility matrix based on the exact force interpolation functions. The so-called \u201cnatural\u201d element stiffness matrix is obtained by inverting the exact element flexibility matrix. One numerical example is utilized to confirm the accuracy and the efficiency of the proposed beam element on Kerr-type foundation and to show a more realistic distribution of interactive foundation force.<\/jats:p>","DOI":"10.1155\/2013\/626287","type":"journal-article","created":{"date-parts":[[2013,9,25]],"date-time":"2013-09-25T01:33:51Z","timestamp":1380072831000},"page":"1-13","source":"Crossref","is-referenced-by-count":11,"title":["Exact Stiffness for Beams on Kerr-Type Foundation: The Virtual Force Approach"],"prefix":"10.1155","volume":"2013","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4343-7654","authenticated-orcid":true,"given":"Suchart","family":"Limkatanyu","sequence":"first","affiliation":[{"name":"Department of Civil Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla 90112, Thailand"}]},{"given":"Woraphot","family":"Prachasaree","sequence":"additional","affiliation":[{"name":"Department of Civil Engineering, Faculty of Engineering, Prince 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