Stiffnesses of infilled frames

AuthorDumrong Hormdee
Call NumberAIT Thesis no. 547
Subject(s)Structural frames
Framing (Building)
NoteA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering of the Asian Institute of Technology, Bangkok, Thailand.
PublisherAsian Institute of Technology
AbstractThe problem of infilled frames subjected to lateral force is investigated by the finite element method. A rectangular element with assumed simple form of displacement is used to formulate the system stiffness matrix. A reinforced concrete frame with brick, mortar and plywood wall panel is studied for the distribution of stresses in the infilled panels and their influences upon the stiff ness of the infilled frame. Separation between the frame and the infilled panel is taken into account in the analysis and it was found that the separation, though it has considerable effect on the stress distribution, has only slight influences upon the stiffness of the infilled frame. From the study of infilled frame interaction, it was found that the stiffness of infilled frame is far greater than that of the frame or the wall alone, and the results obtained reveal that the use of equivalent diagonal struts may lead to underestimation of infilled frame. Stiffness curves for infilled concrete frame with brick, plywood and mortar wall panel are presented to be used as a guide in estimating stiffnesses of such infilled frame structures.
Year1973
TypeThesis
SchoolStudent Research Before 1980
DepartmentOther Field of Studies (No Department)
Academic Program/FoSThesis (Year <=1979)
Chairperson(s)Tongchat Hongladaromp
Scholarship Donor(s)U.K. Government
DegreeThesis (M. Eng.) - Asian Institute of Technology, 1973


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