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在桥梁建筑工程行业大体积混凝土是对横截面在1平方米以上的混凝土构件的习惯性称谓,是当前桥梁工程中出现比较频繁的混凝土构件,对大体积混凝土施工技术的掌握和应用水平已经成为评价桥梁建筑施工企业一项重要的参考。受到桥梁沉降、水化热累积、施工环境变化、约束条件波动等因素的制约,大体积混凝土会在施工中表现出各种类型的裂缝,不但影响了混凝土结构的设计功能,还会给桥梁工程带来安全上的隐患,最终限制了公路交通的能力,形成了一系列质量和安全问题,阻碍了桥梁设计目标的完成和交通的安全。做好桥梁工程大体积混凝土的施工工作要基于施工技术的强化和温度的有效控制,要在施工中从大体积混凝土裂缝的防范出发,做好技术重点和细节的工作,以有效的温控措施确保桥梁工程大体积混凝土有害裂缝的防治。桥梁工程大体积混凝土裂缝的防治应该从混凝土裂缝产生原因的分析入手,以施工技术为中心,形成桥梁工程大体积混凝土施工技术的要点,探寻实际的桥梁工程大体积混凝土施工过程中实现温度控制的技术措施,以技术的角度对防范桥梁工程大体积混凝土进行重新解构,从细节上达到技术性防治桥梁工程大体积混凝土裂缝的目标。
In the bridge construction industry, mass concrete is the habitual designation of concrete members with a cross section of more than 1 square meter. It is a frequent concrete component in the current bridge engineering. The mastery and application of mass concrete construction technology has become Evaluation of bridge construction enterprises an important reference. Constrained by such factors as bridge settlement, hydration heat accumulation, construction environment change and constraint conditions fluctuation, mass concrete will show various types of cracks during construction, which will not only affect the design function of concrete structure, but also give bridge engineering Bring security risks and eventually limit the capacity of highway traffic, forming a series of quality and safety problems, hindering the completion of the bridge design goals and traffic safety. Doing a good job of bridge construction Mass concrete construction work should be based on the strengthening of construction technology and temperature control, construction of mass concrete cracks in the prevention should proceed from the technical focus and details of the work to effective temperature control measures Prevention and Control of Harmful Cracks in Mass Concrete in Bridge Engineering. The prevention and treatment of mass concrete cracks in bridge engineering should start with the analysis of the causes of concrete cracks and take the construction technology as the center to form the main points of mass concrete construction technology of bridge engineering and explore the practical application of temperature control in mass concrete construction of bridge engineering Technical measures, from a technical point of view to prevent the massive concrete bridge reconstruction deconstruction, from the technical details of the bridge to achieve the goal of mass concrete cracks.