A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Beam end prestress structure and construction method thereof
The invention discloses a beam end prestress structure. The structure comprises a box girder, a T-beam structure, bridge piers and prestressed steel beams, the adjacent spans of the box girders form the T-beam structure; the junction of the box girder and the T-beam structure of each adjacent span is positioned on the bridge pier; multiple T beams are connected in the width direction of the bridgeat the beam ends through end cross beams, the multiple prestressed steel beams are arranged in the box girder, anchoring points at the two ends of each prestressed steel beam are located in the end cross beam areas of the T beams of the adjacent spans in the width direction of the bridge, and the prestressed steel beams are parallel to the vertical plane where the axis of the bridge is located. The prestress steel beams of the box girder are tensioned at two ends, so that prestress loss can be reduced, the prestress steel beams can be stressed uniformly, and safety is guaranteed. The tensioning space of the prestress is arranged in the end cross beam area range of the T beam structure, so that tensioning of the box girder prestress has sufficient space without influencing the erection ofa T beam rib, the construction period is effectively shortened, and the work efficiency is improved.
一种梁端预应力结构，包括箱梁、T梁结构、桥墩、预应力钢束，所述箱梁的相邻跨为所述T梁结构，每相邻跨的所述箱梁和所述T梁结构的交接处位于所述桥墩上，多片所述T梁在梁端通过端横梁在桥梁宽度方向上连接，所述箱梁内设有多根所述预应力钢束，所述预应力钢束两端的锚固点在桥梁宽度方向上位于相邻跨的所述T梁的端横梁区域中，所述预应力钢束平行于桥轴线所在的铅垂面。箱梁的预应力钢束采用两端张拉的方式，既能减少预应力损失，还能使预应力钢束受力均匀，保证安全性。将预应力的张拉空间设置在T梁结构的端横梁区域范围内，使得箱梁预应力的张拉有充足空间的同时不影响T梁梁肋的架设，从而有效缩短施工周期，提高工效。
Beam end prestress structure and construction method thereof
The invention discloses a beam end prestress structure. The structure comprises a box girder, a T-beam structure, bridge piers and prestressed steel beams, the adjacent spans of the box girders form the T-beam structure; the junction of the box girder and the T-beam structure of each adjacent span is positioned on the bridge pier; multiple T beams are connected in the width direction of the bridgeat the beam ends through end cross beams, the multiple prestressed steel beams are arranged in the box girder, anchoring points at the two ends of each prestressed steel beam are located in the end cross beam areas of the T beams of the adjacent spans in the width direction of the bridge, and the prestressed steel beams are parallel to the vertical plane where the axis of the bridge is located. The prestress steel beams of the box girder are tensioned at two ends, so that prestress loss can be reduced, the prestress steel beams can be stressed uniformly, and safety is guaranteed. The tensioning space of the prestress is arranged in the end cross beam area range of the T beam structure, so that tensioning of the box girder prestress has sufficient space without influencing the erection ofa T beam rib, the construction period is effectively shortened, and the work efficiency is improved.
一种梁端预应力结构，包括箱梁、T梁结构、桥墩、预应力钢束，所述箱梁的相邻跨为所述T梁结构，每相邻跨的所述箱梁和所述T梁结构的交接处位于所述桥墩上，多片所述T梁在梁端通过端横梁在桥梁宽度方向上连接，所述箱梁内设有多根所述预应力钢束，所述预应力钢束两端的锚固点在桥梁宽度方向上位于相邻跨的所述T梁的端横梁区域中，所述预应力钢束平行于桥轴线所在的铅垂面。箱梁的预应力钢束采用两端张拉的方式，既能减少预应力损失，还能使预应力钢束受力均匀，保证安全性。将预应力的张拉空间设置在T梁结构的端横梁区域范围内，使得箱梁预应力的张拉有充足空间的同时不影响T梁梁肋的架设，从而有效缩短施工周期，提高工效。
Beam end prestress structure and construction method thereof
一种梁端预应力结构及其施工方法
TAN MANJIANG (author) / LIU ZHAOHUI (author) / HOU JIAQING (author) / QIN BO (author) / WANG HONGGUI (author)
2020-07-28
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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