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随着经济的发展,桥梁建设尤其是大跨度桥梁的建设应用越来越广,连续梁因其自身优点在大跨度桥梁中最为常用,因此如何解决好大跨度连续梁的施工问题变得尤为迫切。结合京沪高速铁路全线最大跨度连续梁——跨南运河(80+128+80)m连续梁底座板施工,对其单元划分等施工技术进行了分析研究,底座板单元划分合理与否关系到底座板施工的顺序、进度、质量,可根据工期、实际施工情况等进行动态调整,以求适应施工需要。
With the development of economy, the construction and application of bridges, especially long-span bridges, are becoming more and more widespread. Continuous beams are most commonly used in long-span bridges due to their own advantages. Therefore, how to solve the construction of long-span continuous beams becomes more and more urgent . Combined with the construction of the largest spans continuous beam-cross-South Canal (80 + 128 + 80) m continuous beam base plate in Beijing-Shanghai high-speed railway, the construction techniques of unit division and other construction are analyzed and studied. Seat plate construction order, progress, quality, according to the construction period, the actual construction of dynamic adjustment, in order to meet the construction needs.