扣件式钢管脚手架构造及拆除要求.doc

扣件式钢管脚手架构造及拆除要求 ①扣件式钢管脚手架的构造要求 扣件式钢管脚手架由钢管、扣件、脚手板和底座等组成， ? ? 钢管一般用48 mm、厚3.5mm的焊接钢管。用于立柱、纵向水平杆和支撑杆(包括剪刀撑、横向斜撑、水平斜撑等)的钢管长宜为4 ～6.5m；用于横向水平杆的钢管长度以2.2m为宜。 扣件用于钢管之间的连接，其基本形式有三种，如图所示。 立柱底端立于底座上，以传递荷载到地面上，底座如图所示。? ? ? 脚手板可采用冲压钢脚手板、钢木脚手板、竹脚手板等。每块脚手板重量不宜大于30kg。扣件式钢管脚手架的基本形式有双排、单排两种，一般用于外墙砌筑与装饰。 ②扣件式钢管脚手架的拆除要求 ? ? 脚手架的拆除按由上而下逐层向下的顺序进行。严禁上下同时作业，所有固定件应随脚手架逐层拆除。严禁先将固定件整层或数层拆除后再拆除脚手架。分段拆除高度差不应大于2步。如高差大于2步，应按开口脚手架进行加固。当拆至脚手架下部最后一节立柱时，应先架临时抛撑加固后拆固定件。卸下的材料应集中堆放，严禁抛扔。? daily morning exercises or class-break setting-up exercise and discipline inspection and appraisal of public signs;2, daily cleaning and inspection;3, the daily student school appearance, dress, wearing school card check;4, the daily duty guide to the leadership class discipline three rounds.Weekly moral education work:L, the flag raising ceremony and the national flag speech under the flag raising ceremony held on Monday;2, every week a class meeting, the meeting;3, every week two exercises, cleaning and hygiene, behavior norms, attendance situation published cloth appraisal, and the issue of the code of conduct;;4, weekly work week.Monthly moral education work:1, at least once a month, the theme of education activities, to patriotism education, behavior norms of education as the focus, combined with major retreat day.2, the monthly class quantization assessment and class teacher assessment, selection of behavior for the standard model class.Moral education in each term:1, at the end of each semester to form three good student, outstanding student cadres, civilized student.2, at least once a semester, parents will be.,Student etiquette conventionA, the school leavers1, dress neatly to wear school card, step posture correct, full of spirit; cycling of the same students, at the school gate and get off, go to the car line of the school; are not allowed to ride a bicycle in the campus, bicycle according to the specified location;;2, no time to school, had to leave school. A special rea