Abstract
In this study, theoretical and experimental results are presented which were obtained during an investigation of the influence of the <TEX>$P-{\Delta}$</TEX> effect that was caused by the simultaneous changing of the axial load P of the column and the lateral displacement <TEX>${\Delta}$</TEX> in the external beam-column joints. The increase or decrease of <TEX>${\Delta}$</TEX> was simultaneous with the increase or decrease of the axial compression load P and caused an additional influence on the aseismic mechanical properties of the joint. A total of 12 reinforced concrete exterior beam-column subassemblies were examined. A new model, which predicts the beam-column joint ultimate shear strength, was used in order to predict the seismic behaviour of beam-column joints subjected to earthquake-type loading plus variable axial load and <TEX>$P-{\Delta}$</TEX> effect. Test data and analytical research demonstrated that axial load changes and <TEX>$P-{\Delta}$</TEX> effect during an earthquake cause significant deterioration in the earthquake-resistance of these structural elements. It was demonstrated that inclined bars in the joint region were effective for reducing the unfavourable impact of the <TEX>$P-{\Delta}$</TEX> effect and axial load changes in these structural elements.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
