Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rail transit three-column type prestressed concrete portal pier and construction method thereof
The invention provides a rail transit three-column type prestressed concrete portal pier and a construction method thereof. The rail transit three-column type prestressed concrete portal pier comprisea prestressed bent cap and three pier columns sequentially arranged at intervals in the length direction of the prestressed bent cap, the pier columns are constructed on a pier column foundation, thepier column located in the middle serves as a middle pier column, and the other two pier columns serve as side columns. The middle of the prestressed bent cap is fixedly connected with the top of themiddle pier column, a padstone is constructed at the top of each side column, a support is installed on each padstone, and each end of the prestressed bent cap is supported on the support of the sidecolumn on the corresponding end and is movably connected with the top of the side column on the corresponding end. According to the invention, the supports are reasonably adopted for dynamic connection of the prestressed bent cap and the pier columns, so that the secondary internal force of the structure can be greatly reduced, the structure size and the number of steel bars are optimized, and the purpose of optimal design is achieved. The method is particularly suitable for the three-column type prestressed concrete portal pier structure which is good in foundation condition and short in pier height, and can be popularized to a beam-column type prestressed concrete portal pier structure.
一种轨道交通三柱式预应力混凝土门式墩及其施工方法，包括预应力盖梁和沿预应力盖梁长度方向依次间隔设置的三根墩柱，所述墩柱施作于墩柱基础上，其中，位于中间的墩柱作为中间墩柱，另外两根墩柱作为边柱，所述预应力盖梁的中部与所述中间墩柱的顶部固定连接，所述边柱的顶部施作有垫石，所述垫石上安装有支座，所述预应力盖梁的每个端部支撑于对应端边柱的支座上且与对应端边柱的顶部之间动连接。本发明，合理采用支座对预应力盖梁和墩柱进行动连接，可以大幅减小结构次内力，优化结构尺寸及钢筋数量，达到优化设计的目的。特别适用于基础条件较好、墩高较矮的三柱式预应力混凝土门式墩结构，可以推广至梁柱式预应力混凝土门式墩结构。
Rail transit three-column type prestressed concrete portal pier and construction method thereof
The invention provides a rail transit three-column type prestressed concrete portal pier and a construction method thereof. The rail transit three-column type prestressed concrete portal pier comprisea prestressed bent cap and three pier columns sequentially arranged at intervals in the length direction of the prestressed bent cap, the pier columns are constructed on a pier column foundation, thepier column located in the middle serves as a middle pier column, and the other two pier columns serve as side columns. The middle of the prestressed bent cap is fixedly connected with the top of themiddle pier column, a padstone is constructed at the top of each side column, a support is installed on each padstone, and each end of the prestressed bent cap is supported on the support of the sidecolumn on the corresponding end and is movably connected with the top of the side column on the corresponding end. According to the invention, the supports are reasonably adopted for dynamic connection of the prestressed bent cap and the pier columns, so that the secondary internal force of the structure can be greatly reduced, the structure size and the number of steel bars are optimized, and the purpose of optimal design is achieved. The method is particularly suitable for the three-column type prestressed concrete portal pier structure which is good in foundation condition and short in pier height, and can be popularized to a beam-column type prestressed concrete portal pier structure.
一种轨道交通三柱式预应力混凝土门式墩及其施工方法，包括预应力盖梁和沿预应力盖梁长度方向依次间隔设置的三根墩柱，所述墩柱施作于墩柱基础上，其中，位于中间的墩柱作为中间墩柱，另外两根墩柱作为边柱，所述预应力盖梁的中部与所述中间墩柱的顶部固定连接，所述边柱的顶部施作有垫石，所述垫石上安装有支座，所述预应力盖梁的每个端部支撑于对应端边柱的支座上且与对应端边柱的顶部之间动连接。本发明，合理采用支座对预应力盖梁和墩柱进行动连接，可以大幅减小结构次内力，优化结构尺寸及钢筋数量，达到优化设计的目的。特别适用于基础条件较好、墩高较矮的三柱式预应力混凝土门式墩结构，可以推广至梁柱式预应力混凝土门式墩结构。
Rail transit three-column type prestressed concrete portal pier and construction method thereof
一种轨道交通三柱式预应力混凝土门式墩及其施工方法
SHEN ZHELIANG (Autor:in) / GAO WENJUN (Autor:in) / YAN JUNFENG (Autor:in) / DU ZHENHUA (Autor:in) / YANG GUANG (Autor:in) / ZHANG LING (Autor:in) / QIN HUANYU (Autor:in) / ZHAO TAO (Autor:in) / LIU KUI (Autor:in)
12.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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