A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Double-arch bridge structure capable of applying prestress and construction method thereof
The invention relates to the field of bridge structures, in particular to a double-arch bridge structure capable of applying prestress and a construction method thereof.The double-arch bridge structure comprises junction piers, a main arch ring, an upper arch ring, prestress steel beams, a bridge deck system and on-arch stand columns, the two ends of the main arch ring are fixedly connected with two arch bases respectively, and the two ends of the upper arch ring are fixedly connected with the upper ends of the two junction piers respectively; the prestressed steel beam is arranged in the upper arch ring, when a bridge is formed, the prestressed steel beam applies upward acting force to the intersection part of the main arch ring and the upper arch ring, and the prestressed steel beam applies inward acting force to the junction pier; prestress is applied to the upper arch ring to generate upward radial force, so that the upper arch ring can be used for adjusting the line shape of the main arch ring, optimizing structural stress distribution and improving the bearing capacity and bending resistance of the whole bridge, extra pressure stress reserve is provided for the structure through the prestressed steel beams, and the construction cost is reduced. And the whole structure is ensured to be completely in a pressed state in a bridge forming state, and the stability and durability of the structure are improved.
本发明涉及桥梁结构领域，具体涉及一种可施加预应力的双拱桥结构及其施工方法，包括交界墩、主拱圈、上拱圈、预应力钢束、桥面系、拱上立柱，主拱圈的两端分别与两个拱座固定连接，上拱圈的两端分别与两个交界墩的上端固定连接，预应力钢束设置在上拱圈内，成桥时，预应力钢束对主拱圈和上拱圈的交汇部分施加向上的作用力，预应力钢束对交界墩施加向内的作用力；本发明通过在上拱圈中施加预应力产生向上径向力，从而可用于调整主拱圈的线形，优化结构应力分布，提高整体桥梁的承载能力和抗弯性能，并利用预应力钢束为结构提供额外的压应力储备，确保在成桥状态下整体结构完全处于受压状态，提高了结构的稳定性和耐久性。
Double-arch bridge structure capable of applying prestress and construction method thereof
The invention relates to the field of bridge structures, in particular to a double-arch bridge structure capable of applying prestress and a construction method thereof.The double-arch bridge structure comprises junction piers, a main arch ring, an upper arch ring, prestress steel beams, a bridge deck system and on-arch stand columns, the two ends of the main arch ring are fixedly connected with two arch bases respectively, and the two ends of the upper arch ring are fixedly connected with the upper ends of the two junction piers respectively; the prestressed steel beam is arranged in the upper arch ring, when a bridge is formed, the prestressed steel beam applies upward acting force to the intersection part of the main arch ring and the upper arch ring, and the prestressed steel beam applies inward acting force to the junction pier; prestress is applied to the upper arch ring to generate upward radial force, so that the upper arch ring can be used for adjusting the line shape of the main arch ring, optimizing structural stress distribution and improving the bearing capacity and bending resistance of the whole bridge, extra pressure stress reserve is provided for the structure through the prestressed steel beams, and the construction cost is reduced. And the whole structure is ensured to be completely in a pressed state in a bridge forming state, and the stability and durability of the structure are improved.
本发明涉及桥梁结构领域，具体涉及一种可施加预应力的双拱桥结构及其施工方法，包括交界墩、主拱圈、上拱圈、预应力钢束、桥面系、拱上立柱，主拱圈的两端分别与两个拱座固定连接，上拱圈的两端分别与两个交界墩的上端固定连接，预应力钢束设置在上拱圈内，成桥时，预应力钢束对主拱圈和上拱圈的交汇部分施加向上的作用力，预应力钢束对交界墩施加向内的作用力；本发明通过在上拱圈中施加预应力产生向上径向力，从而可用于调整主拱圈的线形，优化结构应力分布，提高整体桥梁的承载能力和抗弯性能，并利用预应力钢束为结构提供额外的压应力储备，确保在成桥状态下整体结构完全处于受压状态，提高了结构的稳定性和耐久性。
Double-arch bridge structure capable of applying prestress and construction method thereof
一种可施加预应力的双拱桥结构及其施工方法
ZENG ZHONG (author) / XIONG LUN (author) / SHAO LIN (author) / SONG SONGKE (author) / PENG YOUSONG (author) / LIU MINGGANG (author) / SHI HENGJUN (author) / LIU WEI (author) / DU TAOMING (author) / QUAN XINRUI (author)
2024-03-26
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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