两河口水电站木绒特大桥梁钢筋混凝土工程冬季施工技术

Winter Construction Technology of Murong Extra-large Bridge Reinforced Concrete Project of Lianghekou Hydropower Station

以两河口水电站木绒特大桥梁为例,从钢筋施工、混凝土施工、模板施工、混凝土热工计算四个方面分析了钢筋混凝土工程冬季施工技术的应用要点。认为冬季气温比较低,对钢筋混凝土工程施工质量造成的影响比较大,为保证施工质量,提升桥梁结构的稳定性,在冬季施工中,需做好施工工序、施工人员、防护、保温物资、设备保养维护等措施,并做好热工计算,按照计算结果及时调整施工方案,才能将温度对钢筋混凝土工程施工造成的不良影响降到最低。

Based on the case of Murong Extra-large Bridge in Lianghekou Hydropower Station,the application of construction technology of reinforced concrete engineering in winter is illustrated in four aspects as reinforcement construction,concrete construction,formwork construction and concrete thermal calculation.It is concluded that the temperature in winter is relatively low,which has a great impact on the construction quality of reinforced concrete projects.In order to ensure the construction quality and improve the stability of the bridge structure,in winter construction,it is necessary to increase construction process,construction personnel,constructing protection,insulation materials,equipment maintenance and other measures,and do a good job in thermal calculation.The construction plan should be adjusted in time according to the calculation results,so as to minimize the adverse effect of temperature on the construction of reinforced concrete projects.