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A platform for research: civil engineering, architecture and urbanism
Simply supported hollow slab bridge hinge joint shearing force calculation method considering hinge joint damage
The invention relates to a simply supported hollow slab bridge hinge joint shearing force calculation method considering hinge joint damage. According to the method, a single hollow plate is comparedinto an orthotropic plate, a single plate equation is solved based on a Levy solution, after a plate boundary deflection and a shear force expression are obtained, multiple plates are assembled into abridge based on an equal inter-plate shearing force and an inter-plate shearing force-slippage relation, and then an overall equation set is formed by adding free boundary conditions on the outer sides of bridge side plates to solve a hinge joint shearing force. The method not only directly introduces a damage part and a damage degree of the hinge joint into calculation, but also considers damageevolution of the hinge joint under the action of a load, and can provide a quantitative basis for the damage evaluation and maintenance reinforcement of the hollow plate hinge joint.
本发明涉及一种考虑铰缝损伤的简支空心板桥铰缝剪力计算方法，该方法将单块空心板比拟成正交异性板，基于Levy解求解单板方程，得到板边界挠度和剪力表达式后，基于板间剪力相等和板间剪力‑滑移关系将多板装配成桥，再加上桥梁边板外侧的自由边界条件，形成整体方程组求解铰缝剪力。本方法不仅将铰缝损伤部位和损伤程度直接引入计算，同时还能考虑铰缝在荷载作用下的损伤演化，可为空心板铰缝损伤评估和维修加固提供定量依据。
Simply supported hollow slab bridge hinge joint shearing force calculation method considering hinge joint damage
The invention relates to a simply supported hollow slab bridge hinge joint shearing force calculation method considering hinge joint damage. According to the method, a single hollow plate is comparedinto an orthotropic plate, a single plate equation is solved based on a Levy solution, after a plate boundary deflection and a shear force expression are obtained, multiple plates are assembled into abridge based on an equal inter-plate shearing force and an inter-plate shearing force-slippage relation, and then an overall equation set is formed by adding free boundary conditions on the outer sides of bridge side plates to solve a hinge joint shearing force. The method not only directly introduces a damage part and a damage degree of the hinge joint into calculation, but also considers damageevolution of the hinge joint under the action of a load, and can provide a quantitative basis for the damage evaluation and maintenance reinforcement of the hollow plate hinge joint.
本发明涉及一种考虑铰缝损伤的简支空心板桥铰缝剪力计算方法，该方法将单块空心板比拟成正交异性板，基于Levy解求解单板方程，得到板边界挠度和剪力表达式后，基于板间剪力相等和板间剪力‑滑移关系将多板装配成桥，再加上桥梁边板外侧的自由边界条件，形成整体方程组求解铰缝剪力。本方法不仅将铰缝损伤部位和损伤程度直接引入计算，同时还能考虑铰缝在荷载作用下的损伤演化，可为空心板铰缝损伤评估和维修加固提供定量依据。
Simply supported hollow slab bridge hinge joint shearing force calculation method considering hinge joint damage
一种考虑铰缝损伤的简支空心板桥铰缝剪力计算方法
NI XIAOJING (author) / XING YUAN (author) / SHAO LINHAI (author) / WANG HONGLIANG (author) / QIAN YIDONG (author) / ZHANG KANG (author) / CHEN ZHENYU (author) / WU JINRU (author) / SHI YUNYING (author) / ZHAO LINYAN (author)
2020-10-13
Patent
Electronic Resource
Chinese
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