南流江预应力连续梁式渡槽的支座体系转换与临时固结设计

Support system transformation and temporary consolidation design of pre-stressed continuous beam aqueduct across Nanliu River

以南流江大渡槽工程为例,对预应力连续梁式渡槽的支座体系转换与临时固结设计进行了分析计算。从概念、原理、施工流程、内力影响与临时固结设计等方面,对渡槽支座体系转换进行了论述与分析。并对采用的临时固接方案在设计和施工中的承载力进行了验算。研究结果表明,南流江大渡槽采用的支座体系和临时固结均具有足够的承载力,满足工程需求。

Taking the aqueduct across Nanliu River as an example,analysis and calculation was made on the support system transformation and temporary consolidation design of pre-stressed continuous beam aqueduct.The support system transformation was discussed and analyzed from the aspects of concept,principle,construction process,influence of internal force and temporary consolidation design etc.The bearing capacity of the adopted temporary consolidation scheme under design and construction conditions was verified by check calculation.The results of study show the support system and temporary consolidation adopted for the aqueduct across Nanliu River have sufficient bearing capacity to meet the requirements of engineering.