论文部分内容阅读
高层建筑的混凝土施工长期来受气候条件的较大限制,风是其中的因素之一。按照塔机操作安全规程,工作面上出现六级以上大风时不准施工。当离地面10米高处的风力为4级时,测得60米高处的风力达6级。因此每遇大风,往往在浇捣楼层面混凝土处无规则地留施工缝,否则就只能违章操作。这涉及到混凝土质量和操作安全问题。采用混凝土泵车和布料器联合使用,在大风季节一般可不受风力的影响,为高层建筑混凝土连续施工创造了条件。上海市第四建筑公司四○二工程队在上
The concrete construction of high-rise buildings has long been subject to relatively limited weather conditions, and wind is one of the factors. According to the tower crane operation safety regulations, no more than six levels of high winds on the working surface are prohibited from construction. When the wind at a height of 10 meters above the ground is level 4, the wind power measured at a height of 60 meters reaches 6 levels. Therefore, every time there are strong winds, construction joints are often left without concrete at the concrete floor of the concrete floor. Otherwise, they can only be illegally operated. This involves concrete quality and operational safety issues. The combined use of concrete pump trucks and distributors is generally not affected by wind during the windy season, creating conditions for continuous concrete construction of high-rise buildings. Shanghai No. 4 Construction Company’s 402 Engineering Team