Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Construction method of pre-tensioned prestressed concrete hollow simply supported beam
The invention belongs to the technical field of bridge engineering construction, and relates to a construction method of a pre-tensioned prestressed concrete hollow simply supported beam, which is characterized by sequentially comprising the steps of template manufacturing and mounting, steel bar processing and mounting, prestressed bar mounting and tensioning, hollow beam lower-layer concrete pouring, core mold mounting, hollow beam upper-layer concrete pouring and core mold dismounting, and concrete steam curing, prestressed reinforcement releasing, form removal and other specific operationsteps are conducted. Compared with the prior art, the method has the beneficial effects of large span, light dead weight, low steel content, high flatness, high production speed, low production cost,strong practicability and the like, has the advantages of low steel bar consumption and high crack resistance of the hollow beam, and also has the advantages of high forming speed, good durability andthe like of a pre-tensioned prestressed beam, economy and safety of construction of trestles of various lengths and various widths can be guaranteed, and the construction method is suitable for construction of trestles and medium and small bridges.
本发明属于桥梁工程施工技术领域，涉及一种先张法预应力砼空心简支梁的施工方法，其特征在于，依次包括模板制作安装、钢筋加工及安装、预应力筋安装张拉、空心梁下层砼浇筑，芯模安装、空心梁上层砼浇筑、芯模拆除，混凝土蒸汽养护、预应力钢筋的放张和拆模等具体操作步骤。与现有技术相比，其有益效果是：跨度大、自重轻、含钢量低、平整度高、生产速度快、生产成本低、实用性强等，具有空心梁的低钢筋消耗和高抗裂性，又具有先张预应力梁的成形速度快、耐久性好的优点等，并能够保证各种长度各种宽度栈桥施工的经济性和安全性，适用于栈桥及中小桥的施工建造。
Construction method of pre-tensioned prestressed concrete hollow simply supported beam
The invention belongs to the technical field of bridge engineering construction, and relates to a construction method of a pre-tensioned prestressed concrete hollow simply supported beam, which is characterized by sequentially comprising the steps of template manufacturing and mounting, steel bar processing and mounting, prestressed bar mounting and tensioning, hollow beam lower-layer concrete pouring, core mold mounting, hollow beam upper-layer concrete pouring and core mold dismounting, and concrete steam curing, prestressed reinforcement releasing, form removal and other specific operationsteps are conducted. Compared with the prior art, the method has the beneficial effects of large span, light dead weight, low steel content, high flatness, high production speed, low production cost,strong practicability and the like, has the advantages of low steel bar consumption and high crack resistance of the hollow beam, and also has the advantages of high forming speed, good durability andthe like of a pre-tensioned prestressed beam, economy and safety of construction of trestles of various lengths and various widths can be guaranteed, and the construction method is suitable for construction of trestles and medium and small bridges.
本发明属于桥梁工程施工技术领域，涉及一种先张法预应力砼空心简支梁的施工方法，其特征在于，依次包括模板制作安装、钢筋加工及安装、预应力筋安装张拉、空心梁下层砼浇筑，芯模安装、空心梁上层砼浇筑、芯模拆除，混凝土蒸汽养护、预应力钢筋的放张和拆模等具体操作步骤。与现有技术相比，其有益效果是：跨度大、自重轻、含钢量低、平整度高、生产速度快、生产成本低、实用性强等，具有空心梁的低钢筋消耗和高抗裂性，又具有先张预应力梁的成形速度快、耐久性好的优点等，并能够保证各种长度各种宽度栈桥施工的经济性和安全性，适用于栈桥及中小桥的施工建造。
Construction method of pre-tensioned prestressed concrete hollow simply supported beam
一种先张法预应力砼空心简支梁的施工方法
SONG BO (Autor:in) / ZHANG MINGYUE (Autor:in) / LI BIN (Autor:in) / GUAN HONGSHENG (Autor:in) / ZHANG RONGFU (Autor:in)
05.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
E01D
BRIDGES
,
Brücken
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