سال انتشار: ۱۳۸۶

محل انتشار: پنجمین کنفرانس بین المللی زلزله شناسی و مهندسی زلزله

تعداد صفحات: ۹

نویسنده(ها):

Alireza Mortezaei – Ph.D. student and Lecturer, Islamic Azad University – Semnan Branch, Semnan, Iran.
Ali Kheyroddin – Associate Professor, Engineering Faculty, Semnan University, Semnan, Iran

چکیده:

The behavior of the reinforced concrete moment resisting frame structures in resent earthquakes all over he world has highlighted the consequences of poor performance of beam-column joints. Large amount of research carried out to understand the complex mechanisms and safe behavior of beam-column joints has gone into code recommendations. This paper presents critical review of recommendations of wellestablished codes regarding design and detailing aspects of beam-column joints. The codes of practice considered are ACI 318M-02, NZS 3101 and Eurocode 8 of EN 1998-1: 2003. All three codes aim to satisfy the bond and shear requirements within the joint. It is observed that ACI 318M-02 requires smaller column depth as compared to the other two codes based on the anchorage conditions. NZS 3101 and EN 1998-1: 2003 consider the shear stress level to obtain the required stirrup reinforcement whereas ACI 318M-02 provides stirrup reinforcement to obtain the axial load capacity of column by confinement. Significant factors influencing the design of beam-column joints are identified and the effect of their variations on design parameters is compared. The variation in the requirements of the shear reinforcement is substantial among the three codes.