Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Large-span thrust-free self-balancing umbrella-shaped structure supporting rigid frame bridge and construction method thereof
The invention discloses a large-span thrust-free self-balancing umbrella-shaped structure supporting rigid frame bridge and a construction method thereof.The large-span thrust-free self-balancing umbrella-shaped structure supporting rigid frame bridge comprises a main beam, a lower chord beam, main piers and side piers located on a side span and a middle span, the lower chord beam, the main piers and the main beam form a main span inverted triangular frame supporting structure, and the side piers and the main beam form a side span inverted triangular frame supporting structure; reverse arched beam string structures are arranged on the main beams corresponding to the side-span inverted triangular frame supporting structures; a traditional prestressed concrete continuous rigid frame bridge, a tree-shaped supporting structure and a beam string structure are combined on a stress system to form an umbrella-shaped structure bridge of a thrust-free self-balancing stress system, multi-point supporting is adopted to replace single-point supporting of a traditional vertical pier column, and therefore the calculated span of a main beam is greatly reduced, and the construction cost is reduced. Therefore, the bending moment and the shearing force of the main beam are obviously reduced. In addition, other components of the bridge type mainly bear axial force, and the cross section of each component is uniformly stressed, so that the structural efficiency and the economic performance can be obviously improved.
本发明公开了一种大跨度无推力自平衡伞状结构支承刚构桥及其施工方法，包括主梁、下弦梁、主墩以及位于边跨和中跨的边墩，所述下弦梁、主墩与主梁形成主跨倒三角框架支承结构，所述边墩与主梁形成边跨倒三角框架支承结构，在边跨倒三角框架支承结构对应的主梁上设置反向的拱形张弦梁；将传统的预应力混凝土连续刚构桥、树状支承结构和张弦梁结构在受力体系上进行组合，形成“无推力‑自平衡”的受力体系的伞状结构桥梁，采用多点支承代替传统竖直墩柱的单点支承，因此主梁的计算跨度被大幅减小，从而使主梁弯矩、剪力得以显著降低。此外，该桥型其余各构件均与承受轴向力为主，各构件截面受力均匀，这样就可以使结构效率和经济性能得以明显提升。
Large-span thrust-free self-balancing umbrella-shaped structure supporting rigid frame bridge and construction method thereof
The invention discloses a large-span thrust-free self-balancing umbrella-shaped structure supporting rigid frame bridge and a construction method thereof.The large-span thrust-free self-balancing umbrella-shaped structure supporting rigid frame bridge comprises a main beam, a lower chord beam, main piers and side piers located on a side span and a middle span, the lower chord beam, the main piers and the main beam form a main span inverted triangular frame supporting structure, and the side piers and the main beam form a side span inverted triangular frame supporting structure; reverse arched beam string structures are arranged on the main beams corresponding to the side-span inverted triangular frame supporting structures; a traditional prestressed concrete continuous rigid frame bridge, a tree-shaped supporting structure and a beam string structure are combined on a stress system to form an umbrella-shaped structure bridge of a thrust-free self-balancing stress system, multi-point supporting is adopted to replace single-point supporting of a traditional vertical pier column, and therefore the calculated span of a main beam is greatly reduced, and the construction cost is reduced. Therefore, the bending moment and the shearing force of the main beam are obviously reduced. In addition, other components of the bridge type mainly bear axial force, and the cross section of each component is uniformly stressed, so that the structural efficiency and the economic performance can be obviously improved.
本发明公开了一种大跨度无推力自平衡伞状结构支承刚构桥及其施工方法，包括主梁、下弦梁、主墩以及位于边跨和中跨的边墩，所述下弦梁、主墩与主梁形成主跨倒三角框架支承结构，所述边墩与主梁形成边跨倒三角框架支承结构，在边跨倒三角框架支承结构对应的主梁上设置反向的拱形张弦梁；将传统的预应力混凝土连续刚构桥、树状支承结构和张弦梁结构在受力体系上进行组合，形成“无推力‑自平衡”的受力体系的伞状结构桥梁，采用多点支承代替传统竖直墩柱的单点支承，因此主梁的计算跨度被大幅减小，从而使主梁弯矩、剪力得以显著降低。此外，该桥型其余各构件均与承受轴向力为主，各构件截面受力均匀，这样就可以使结构效率和经济性能得以明显提升。
Large-span thrust-free self-balancing umbrella-shaped structure supporting rigid frame bridge and construction method thereof
大跨度无推力自平衡伞状结构支承刚构桥及其施工方法
LAI YAPING (Autor:in) / XIE YIMIN (Autor:in) / LI YU (Autor:in) / LU GAN (Autor:in) / WEI PENG (Autor:in) / CHEN RUONAN (Autor:in) / YAN FUCHENG (Autor:in)
16.05.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024
Ultrahigh large-span umbrella-shaped support combined system and construction method thereof
| Europäisches Patentamt | 2022
Support-free mounting method for self-balancing umbrella-shaped structure
| Europäisches Patentamt | 2022
T-shaped rigid frame bridge reinforcing structure and construction method thereof
| Europäisches Patentamt | 2021