02376nam a2200253   450000500170000000800410001703500150005810000300007324500690010326000520017230000150022449000270023950001440026650200580041052012760046865000300174465000380177470000420181270000420185470000470189671000550194381000590199885600650205720260817170901.0060898         th                  eng    a.b101026441 aPajaron, Crispin C.,cJr.10aAutomated analysis and design of prestressed concrete structures  aBangkok :bAsian Institute of Technology,c1981  avii, 90 p.1 aThesis ;vno. ST-81-11  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering. School of Engineering and Technology  aThesis (M.Eng.) - Asian Institute of Technology, 1981  aAutomated analysis and design of prestressed concrete frame  structures, using the Finite Element Method, are presented. Frame members are idealized with three-node degenerate deep beam elements, each node  having three degrees of freedom. In the element formulation, effects of  concrete shear deformation, restressing steel stiffness, and cable slope are taken into account for a more rigorous analysis. The same shape  function is employed to interpolate cable eccentricities within the element, thus, a parabolic curve can be exactly represented. Accuracy of the element in predicting the behavior and performance of  frame structures due to prestress and applied loads are demonstrated in a series of test examples. In this regard, the element is proven to be efficient because a minimum number of elements may be used in the  idealization of continuous beam members. Moreover, with the three nodal eccentricities input, the elastic response of the structure due to prestress can be obtained accurately compared with the traditional method  of analysis.  The design algorithm using the fully stressed concept and a concordant cable profile is implemented. This limiting case somehow provides an efficient process which can be utilized in preliminary or final design. 0aStructural framesxModels 0aPrestressed concrete construction0 aWorsak Kanok-Nukulchai, eChairperson1 aOgawa, Junji, eExamination Committee0 aPing Kunawatsatit, eExamination Committee2 aFederal Government of Germany, eScholarship Donor2 aAsian Institute of Technology.tThesis ;vno. ST-81-11  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B21756