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吊装柱子时要注意哪些事项? | 2012-4-6 13:23:00
吊装柱子时要注意哪些事项?
(1)起吊时观察卡环的方位和绳扣的变化情况,发现有异常现象时要采取有效的措施,保证吊装的安全。
(2)凡是采用砖胎浇制的柱子在起吊后需要停车剔模时,不准边升边剔除,更不准站在柱子下进行剔模作业,最好是先将柱子翻转剔除干净后再起吊。
(3)吊装前要检查柱脚或杯底的平直度,如误差较大造成点接触或线接触时,应预先剔平或抹平,以保柱子的稳定。
(4)向杯口放楔子时,应拿两个侧面以防止挤手。摘扣前楔子要打紧,两个人同时打锤要避正面、交错站立,以防锤头甩出伤人。摘扣时柱下方及周围应严禁站人。
(5)多层框架柱、升板柱、高大的风柱、重心偏上柱或带悬梁的偏心较大的柱,采用不脱钩校正,并在校正后随即浇灌混凝土,必要时应加缆风绳或其它措施,保证柱子的稳固。
(G)柱子临时固定用的楔子,每边不少于2个,在脱钩前要检查柱脚是否落至杯底,防止在校正过程中,因柱脚悬空,在松动楔子时柱子突然下落发生倾倒。
(7)柱子校正时楔子不能拔出来,要用大锤敲打缓慢的松动,并在校正后用石块将柱脚卡紧。立即灌注混凝土,并注意捣固时不要碰动楔子。
(8)无论是有缆风绳或无缆风绳校正,都应在吊装完后立即进行校正,其时间间隔不得过长,更不能过夜,防止刮大风发生事故。
- 上一篇:吊装行车梁、屋架要注意些什么?
- 下一篇:施工现场临时用电安全技术规范包括哪些内容?

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