Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for determining reasonable height of layered pouring concrete
The invention relates to the field of bridge and culvert engineering in the transportation industry, and particularly discloses a method for determining the reasonable height of layered pouring concrete. A concrete beam is reasonably poured layer by layer along the height of the beam, the bearing capacity of the structure of the pre-poured part is fully utilized, corresponding measures are properly taken through calculation, the concrete beam bears the self load and the construction load of subsequent remaining concrete beams, and therefore a formwork supporting system for concrete beam structure construction can be simplified. Based on a stress safety state of a first-layer concrete beam of a layered pouring concrete beam, in the design process, the pouring height of the second layer should be reasonably reduced; reference is provided for design and construction of the concrete beam adopting full framing layered pouring; reference methods and bases are provided for layered pouring continuous beam support and foundation supporting system design, concrete beam layered height determination and the like, early-stage strain of the beam can be controlled, later-stage creep is reduced, the probability that concrete cracks is reduced, and therefore durability of a bridge structure is guaranteed, and the method has great engineering and social significance.
本发明涉及交通运输业桥涵工程领域，具体公开了分层浇筑混凝土合理高度的判断方法。混凝土梁沿梁高合理分层浇筑，充分利用先浇筑部分的结构自身承载力，通过计算适当采取相应措施，使其承担自身荷载及后续剩余混凝土梁的施工荷载，从而可以简化混凝土梁结构施工的模板支撑体系。基于分层浇筑混凝土梁首层混凝土梁应力安全状态下，在设计过程中应合理减小第二层浇筑的高度，对采用满堂支架分层浇筑的混凝土梁设计及施工提供了参考，为分层浇筑的连续梁支架及基础支撑体系设计、混凝土梁分层高度确定等提供了参考方法和依据，并有利于控制梁的早期应变、减少后期徐变，降低混凝土出现裂缝的概率，从而保障桥梁结构的耐久性，极具工程和社会意义。
Method for determining reasonable height of layered pouring concrete
The invention relates to the field of bridge and culvert engineering in the transportation industry, and particularly discloses a method for determining the reasonable height of layered pouring concrete. A concrete beam is reasonably poured layer by layer along the height of the beam, the bearing capacity of the structure of the pre-poured part is fully utilized, corresponding measures are properly taken through calculation, the concrete beam bears the self load and the construction load of subsequent remaining concrete beams, and therefore a formwork supporting system for concrete beam structure construction can be simplified. Based on a stress safety state of a first-layer concrete beam of a layered pouring concrete beam, in the design process, the pouring height of the second layer should be reasonably reduced; reference is provided for design and construction of the concrete beam adopting full framing layered pouring; reference methods and bases are provided for layered pouring continuous beam support and foundation supporting system design, concrete beam layered height determination and the like, early-stage strain of the beam can be controlled, later-stage creep is reduced, the probability that concrete cracks is reduced, and therefore durability of a bridge structure is guaranteed, and the method has great engineering and social significance.
本发明涉及交通运输业桥涵工程领域，具体公开了分层浇筑混凝土合理高度的判断方法。混凝土梁沿梁高合理分层浇筑，充分利用先浇筑部分的结构自身承载力，通过计算适当采取相应措施，使其承担自身荷载及后续剩余混凝土梁的施工荷载，从而可以简化混凝土梁结构施工的模板支撑体系。基于分层浇筑混凝土梁首层混凝土梁应力安全状态下，在设计过程中应合理减小第二层浇筑的高度，对采用满堂支架分层浇筑的混凝土梁设计及施工提供了参考，为分层浇筑的连续梁支架及基础支撑体系设计、混凝土梁分层高度确定等提供了参考方法和依据，并有利于控制梁的早期应变、减少后期徐变，降低混凝土出现裂缝的概率，从而保障桥梁结构的耐久性，极具工程和社会意义。
Method for determining reasonable height of layered pouring concrete
分层浇筑混凝土梁合理高度的判断方法
HAO TIANZHI (Autor:in) / ZHANG WUTING (Autor:in) / WU DONGXING (Autor:in) / YU MENGSHENG (Autor:in) / NING YIHAO (Autor:in) / JIANG FENG (Autor:in)
20.10.2020
Patent
Elektronische Ressource
Chinesisch
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