Moving load-based method of stress status evaluation of suspenders of suspension bridge

• Main Authors: LIN YOUQIN, CHEN SHUHUI, QIU FAQIANG, XIA ZHANGHUA, ZHU SANFAN, SUN MINGSONG
• Format: Patent
• Language: Chinese; English
• Published: 24.07.2018
• Subjects: ASSEMBLY OF BRIDGES; CALCULATING; COMPUTING; CONSTRUCTION OF BRIDGES; CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; FIXED CONSTRUCTIONS; MEASURING; MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE; OR VIADUCTS; PHYSICS; TESTING

The invention provides a moving load-based method of stress status evaluation of suspenders of a suspension bridge. Firstly, a collection system is utilized, the moving load is enabled to be at a certain position of a bridge deck, and different actual strain values of the different suspenders are obtained; then a finite-element model is established to obtain different theoretical strain values ofthe different suspenders under lossless status in a case where the moving load is at the certain position of the bridge deck; and the suspenders of the suspension bridge are evaluated through comparing the actual stress values and the theoretical stress values and then comparing and analyzing change laws of the actual stress values and the theoretical stress values. By applying the technical solution, overall stress status and stress change amounts of the suspenders can be obtained, and the stress status of the suspenders can be effectively evaluated. 本发明提供了种基于移动荷载的悬索桥吊杆受力状态评估的方法，首先利用采集系统，令移动荷载在桥面某个位置，得到不同吊杆的不同实际应变值，然