نوع مقاله : علمی - پژوهشی
نویسندگان
1 دانشجوی دکتری، گروه مهندسی عمران، دانشکده فنی و مهندسی، دانشگاه قم، قم، ایران
2 دانشیار، گروه مهندسی عمران، دانشکده فنی و مهندسی، دانشگاه قم، قم، ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Cables are essential components of cable stayed bridges, contributing to their safety and optimal design conditions. Various methods have been proposed to adjust cable tension in order to achieve optimal design forces for cables and other bridge components. Different construction analysis methods, such as forward and backward analysis, have also been introduced to ensure the attainment of cable design forces during construction. Most of the existing construction methods for cable-stayed bridges require multiple adjustments of cable tension at each construction stage, which often result in deviations from the desired geometric shape of the final bridge due to execution errors. In this research, a new method is presented for constructing cable stayed bridges without the need for readjustment of cable tension, by investigating the impact of initial cable tension variations on the overall stiffness, resistance, and safety of the bridge, and proposing an alternative approach. To validate this approach, a three-span cable-stayed bridge is investigated as a case study using nonlinear static analysis. and the proposed method for constructing cable-stayed bridges was evaluated on this particular bridge. The proposed method offers a simpler and more efficient approach to constructing cable stayed bridges without compromising the safety and durability of the structure.
کلیدواژهها [English]
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