Abstract
Web openings in beams and girders occur quite often in practice to provide a convenient passage for environmental services. As a result storey heights in buildings can be reduced resulting in major cost savings. A theoretical and experimental study is carried out to determine the influence of openings on the static and dynamic responses of prestressed concrete girders. The ABAQUS computer code, based on the finite element technique, is used to examine the effects of opening size, eccentricity and horizontal location on the shear distribution as well as on the potentially-splitting tensile stress at the opening when the girder is subjected to static load applied at mid-span and at the opening. The computer code is also applied to study the dynamic response. Simply supported and two-span continuous girders of rectangular, T- and I-sections are considered. The theoretical results are verified and substantiated by experimental results.
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