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A platform for research: civil engineering, architecture and urbanism
Continuous beam middle span prestressed beam tensioning construction method and continuous beam structure thereof
The invention provides a continuous beam middle span prestressed beam tensioning construction method and a continuous beam structure thereof. The continuous beam comprises a middle-span prestressed beam and adjacent non-prestressed beams on the two sides of the prestressed beam, an anchoring end of a prestressed tendon is arranged in the non-prestressed beam body on one side of the prestressed beam, and a tensioning end of the prestressed tendon is arranged in the non-prestressed beam body on the other side of the prestressed beam. A post-pouring concrete area is arranged from the tensioning end to the 1/3 position of the midspan of the non-prestressed beam, and a quick and easy closing-up net is adopted for clamping stubbles at the 1/3 position of the midspan of the non-prestressed beam. The special situation that only a prestressed beam is spanned in the middle, which cannot be solved by traditional convex tensioning, is solved, and the problem that a tensioning groove is not formed in the beam top of a large-section beam and decoration is not affected can be solved.
本发明提供了一种连续梁中间跨预应力梁张拉施工方法及其连续梁结构。该连续梁包括中间跨预应力梁和预应力梁两侧相邻的非预应力梁，在预应力梁一侧的非预应力梁体内设置预应力筋的锚固端，在预应力梁另一侧的非预应力梁体内设置预应力筋的张拉端。自张拉端处起至非预应力梁跨中1/3位置设置为后浇混凝土区域，并在非预应力梁跨中1/3位置采用快易收口网进行卡茬。本发明解决了传统外凸式张拉不能解决的只有中间跨有预应力梁的特殊情况，且能做到不在大截面梁的梁顶设置张拉槽、不影响装修的难题。
Continuous beam middle span prestressed beam tensioning construction method and continuous beam structure thereof
The invention provides a continuous beam middle span prestressed beam tensioning construction method and a continuous beam structure thereof. The continuous beam comprises a middle-span prestressed beam and adjacent non-prestressed beams on the two sides of the prestressed beam, an anchoring end of a prestressed tendon is arranged in the non-prestressed beam body on one side of the prestressed beam, and a tensioning end of the prestressed tendon is arranged in the non-prestressed beam body on the other side of the prestressed beam. A post-pouring concrete area is arranged from the tensioning end to the 1/3 position of the midspan of the non-prestressed beam, and a quick and easy closing-up net is adopted for clamping stubbles at the 1/3 position of the midspan of the non-prestressed beam. The special situation that only a prestressed beam is spanned in the middle, which cannot be solved by traditional convex tensioning, is solved, and the problem that a tensioning groove is not formed in the beam top of a large-section beam and decoration is not affected can be solved.
本发明提供了一种连续梁中间跨预应力梁张拉施工方法及其连续梁结构。该连续梁包括中间跨预应力梁和预应力梁两侧相邻的非预应力梁，在预应力梁一侧的非预应力梁体内设置预应力筋的锚固端，在预应力梁另一侧的非预应力梁体内设置预应力筋的张拉端。自张拉端处起至非预应力梁跨中1/3位置设置为后浇混凝土区域，并在非预应力梁跨中1/3位置采用快易收口网进行卡茬。本发明解决了传统外凸式张拉不能解决的只有中间跨有预应力梁的特殊情况，且能做到不在大截面梁的梁顶设置张拉槽、不影响装修的难题。
Continuous beam middle span prestressed beam tensioning construction method and continuous beam structure thereof
一种连续梁中间跨预应力梁张拉施工方法及其连续梁结构
LI ZHANGYI (author) / LI XINQIAO (author) / LIU CHUNMIN (author) / WANG JIANHUA (author) / LIU HONGYONG (author) / NI SIWEI (author) / LIU QIUSHI (author)
2023-02-24
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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