【摘 要】
：
钢-混凝土组合连续梁桥的中间支座附近为负弯矩区,会导致桥面混凝土开裂,缩短使用寿命。本文 结合常州市马公桥工程的建设,对采用支座位移法来施加预应力,避免桥面混凝土开
【机 构】
：
江苏省常州市建设局 常州市213003
论文部分内容阅读
钢-混凝土组合连续梁桥的中间支座附近为负弯矩区,会导致桥面混凝土开裂,缩短使用寿命。本文 结合常州市马公桥工程的建设,对采用支座位移法来施加预应力,避免桥面混凝土开裂的技术进行了研究。通过对 施工过程中的实测数据和仿真计算结果的比较,明确实际效果,得出有关经验和建议。
Steel-concrete composite continuous girder bridge near the middle of the negative moment area, will lead to concrete cracking bridge deck, shortening the service life. Based on the construction of the Ma-Gong Bridge in Changzhou City, this paper studies the technique of applying prestress to the abutment displacement method and avoiding the cracking of the bridge deck concrete. Through the comparison of the measured data and the simulation results in the construction process, the actual results are clarified and relevant experiences and suggestions are obtained.
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