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首页> 外文期刊>KSCE journal of civil engineering >Analysis of Mechanical Characteristics of Steel-Concrete Composite Flat Link Slab on Simply-Supported Beam Bridge
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Analysis of Mechanical Characteristics of Steel-Concrete Composite Flat Link Slab on Simply-Supported Beam Bridge

机译：简支梁桥上钢-混凝土组合扁链接平板的力学性能分析。

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Based on linear elastic theory, the concrete cracking problem of link slab on simply supported beam bridge was explored and theoretical analysis of bridge link slabs were carried out. Meanwhile, the formulas for calculating the stress of link slab were deduced and the cause for continuous damage of bridge deck was quantitatively analyzed. On the base of analysis of its failure mechanism, a new type of steel-concrete composite flat link slab was proposed. The results of full-scale model tests and finite element (FE) analysis indicated that it can alter the transfer path of internal forced inside the link slab and then concrete cracking can be prevented effectively. It was found that the main factors to link slab failure were influentially descending from girder end upturning, longitudinal tensile action and girder end rotation. Furthermore, the unbonded region between girder and link slab can effectively decrease the continuous stress and then alleviate the damage to bridge deck. All those results in this paper can be used as a reference and guidance for further research and development of new type of bridge link slab and jointless bridge.
机译：基于线性弹性理论，探讨了简支梁桥连接板的混凝土开裂问题，并对桥梁连接板进行了理论分析。同时推导了计算连接板应力的公式，并定量分析了桥面板连续损伤的原因。在分析其破坏机理的基础上，提出了一种新型的钢-混凝土复合扁连杆平板。全面模型试验和有限元分析的结果表明，它可以改变连接板内部的内力传递路径，从而可以有效地防止混凝土开裂。研究发现，与平板破坏有关的主要因素是从梁端上翻，纵向拉伸作用和梁端旋转影响而来。此外，大梁与连接板之间的未粘结区域可以有效地减小连续应力，从而减轻对桥面的破坏。本文所有这些结果可作为进一步研究和开发新型桥面连接板和无接缝桥梁的参考和指导。

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