A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
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 (author) / ZHANG WUTING (author) / WU DONGXING (author) / YU MENGSHENG (author) / NING YIHAO (author) / JIANG FENG (author)
2020-10-20
Patent
Electronic Resource
Chinese
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