大跨度挡潮闸网架结构门型方案研究

Study on Grid Structural Gate Type Scheme of Long Span Tidal Barrage

通过对现状门型结构分析,提出一种挡潮闸网架结构门型创新方案。在跨度方向采用拱形网架结构作为门体受力体系,塑料面板,以塑代钢、不生锈,免维修保养。充分利用网架结构的特点,大跨度、重量轻,同时,创新采用圆弧形凹形槽作为行走和支撑轨道,使门体的支撑和行走合二为一,合理地解决了大跨度门页的支撑和行走机构。对网架结构门型设计方案进行了充分论证和结构分析,并阐述了实施方法,可作为大跨度挡潮闸门型选择参考。

According to the analysis of the present gate type structure,an innovation scheme of grid structural gate type of tidal barrage is proposed.The arched grid structure is used as the stress system of gate in the span direction.The plastic front panel instead of steel is not rusted and frees from the repair and maintenance.The characteristics of grid structure with long span and light weight are fully applied.At the same time,the circular arc concave groove is innovated to use as the walking and supporting track to make the supporting and walking of gate combine two into one,which reasonably solves the supporting and walking mechanism of long-span gate leaf.The article fully proves of grid structural gate type design scheme and analyzes its structure,and sets forth its implementation method,which can be referred for the selection of long-span tidal barrage type.