Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Pre-tensioning prefabricated prestressed beam and construction process thereof
The pre-tensioning method prefabricated prestressed beam comprises a prestressed beam body, a plurality of sets of stirrups and transverse steel bars are arranged in the prestressed beam body, and a plurality of sets of lower prestressed steel strands and positioning steel bars are arranged at the bottom of the prestressed beam body. U-shaped steel bars are arranged between the positioning steel bar positions, multiple sets of upper prestressed steel strands are arranged on the side edge of the prestressed beam body, embedded steel plates are arranged at the two ends of the transverse steel bars, through holes are formed in the embedded steel plates, and reinforcing steel bars are arranged between the side face and the bottom face of the prestressed beam body. According to the pre-tensioning method prefabricated prestressed beam, the construction technology is optimized, U-shaped steel bars are adopted for flexible adjustment and lap joint, the problems that beam column steel bars are too dense to collide and concrete pouring cavities exist are avoided, the problems that prefabricated beam bottom bars are lifted, a protective layer is too large, and the section calculation height cannot be guaranteed are solved, meanwhile, the number of the bottom bars can be reduced, and the construction cost is reduced. And positioning and binding of steel bars in the beam-column joint are facilitated.
本发明提出了一种先张法预制预应力梁及其施工工艺，所述先张法预制预应力梁包括预应力梁本体，所述预应力梁本体的内部设有多组箍筋和横向钢筋，所述预应力梁本体的底部设有多组下预应力钢绞线和定位钢筋，所述定位钢筋位之间设有U型钢筋，所述预应力梁本体的侧边设有多组上预应力钢绞线，所述横向钢筋两端设置预埋钢板，所述预埋钢板上设置有通孔，所述预应力梁本体侧面与底面之间设置有加强钢筋；所述先张法预制预应力梁通过优化施工工艺，采用U型钢筋灵活调节搭接，避免梁柱钢筋过于密集碰撞和混凝土浇筑空腔问题发生，解决预制梁底筋上抬，保护层过大，无法保证截面计算高度等问题，同时可减少底筋数量，方便梁柱节点内钢筋的定位和绑扎。
Pre-tensioning prefabricated prestressed beam and construction process thereof
The pre-tensioning method prefabricated prestressed beam comprises a prestressed beam body, a plurality of sets of stirrups and transverse steel bars are arranged in the prestressed beam body, and a plurality of sets of lower prestressed steel strands and positioning steel bars are arranged at the bottom of the prestressed beam body. U-shaped steel bars are arranged between the positioning steel bar positions, multiple sets of upper prestressed steel strands are arranged on the side edge of the prestressed beam body, embedded steel plates are arranged at the two ends of the transverse steel bars, through holes are formed in the embedded steel plates, and reinforcing steel bars are arranged between the side face and the bottom face of the prestressed beam body. According to the pre-tensioning method prefabricated prestressed beam, the construction technology is optimized, U-shaped steel bars are adopted for flexible adjustment and lap joint, the problems that beam column steel bars are too dense to collide and concrete pouring cavities exist are avoided, the problems that prefabricated beam bottom bars are lifted, a protective layer is too large, and the section calculation height cannot be guaranteed are solved, meanwhile, the number of the bottom bars can be reduced, and the construction cost is reduced. And positioning and binding of steel bars in the beam-column joint are facilitated.
本发明提出了一种先张法预制预应力梁及其施工工艺，所述先张法预制预应力梁包括预应力梁本体，所述预应力梁本体的内部设有多组箍筋和横向钢筋，所述预应力梁本体的底部设有多组下预应力钢绞线和定位钢筋，所述定位钢筋位之间设有U型钢筋，所述预应力梁本体的侧边设有多组上预应力钢绞线，所述横向钢筋两端设置预埋钢板，所述预埋钢板上设置有通孔，所述预应力梁本体侧面与底面之间设置有加强钢筋；所述先张法预制预应力梁通过优化施工工艺，采用U型钢筋灵活调节搭接，避免梁柱钢筋过于密集碰撞和混凝土浇筑空腔问题发生，解决预制梁底筋上抬，保护层过大，无法保证截面计算高度等问题，同时可减少底筋数量，方便梁柱节点内钢筋的定位和绑扎。
Pre-tensioning prefabricated prestressed beam and construction process thereof
一种先张法预制预应力梁及其施工工艺
YANG HAILONG (Autor:in) / ZHU SHUKAI (Autor:in) / HE JINGSHENG (Autor:in) / BAO GUANGSHU (Autor:in) / ZHANG YUQUAN (Autor:in)
27.09.2024
Patent
Elektronische Ressource
Chinesisch
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