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影响脚手架安全的三大因素,重庆¼„—扣¿UŸèµ,施工安全ä¸?脚手架的安全是重中之é‡?而构成脚手架安全的因素有三大斚w¢,一是脚手架本èín的安全可é?二是脚手架的安全防护措施;三是使用脚手架的安全操作.本文ž®†å¯¹ä»¥ä¸Šä¸‰å¤§å› ç´ åšå‡ºè¯¦ç»†è¯´æ˜Ž. </p> <p> 一.脚手架的¾l“构构造方é?</p> <p> 安全可靠的脚手架应具有èƒö够的坚固性和½E›_®šæ€?在规定的允许药‚²å’Œæ°”候条件下,能保证脚手架¾l“æž„½E›_®š,不摇、小晃、不倾斜、不沉陷、不倒塌.要保证脚手架安全可靠,应确保以下基本要æ±? </p> <p> 1.构架¾l“æž„½E›_®š. </p> <p> 构架单元应äؓ½E›_®šçš„构造åŞå¼?架体按规定设¾|®æ–œæ†ã€å‰ªåŠ›æ’‘、连墙杆或撑、拉ä»?在通道、洞口以及其他需要加大结构尺å¯?高度、跨åº?或承受规定荷载的部位,æ ÒŽ®éœ€è¦è®¾¾|®åŠ å¼ºæ†ä»¶æˆ–拉撑æ? </p> <p> 2.˜qžæŽ¥èŠ‚点可靠. </p> <p> 杆äšg的交叉位¾|®è¦½W¦åˆèŠ‚点构造规å®?˜qžæŽ¥ä»¶çš„安装和紧固符合要æ±?脚手架的˜qžå¢™ç‚V€æ’‘拉点和悬æŒ?å?点必™å»è®¾¾|®åœ¨èƒ½å¯é åœ°æ‰¿å—撑拉药‚²çš„结构部ä½?必要时应˜q›è¡Œ¾l“构验算. </p> <p> 3.脚手架地基应坚实牢固. </p> <p> äº?脚手架的安全防护 </p> <p> 脚手架上的安全防护是利用安全设施提供安全防护,防止架上的äh员和物品发生坠落. </p> <p style="text-align:center;"> <img src="/uploads/image/20200924/20200924110254_4843.jpg" alt="" /> </p> <p> 具体措施æœ? </p> <p> 1.脚手架方é?</p> <p> (1)作业现场应设安全围栏和警½Cºæ ‡å¿?¼›æ­¢æ— å…³äººå‘˜˜q›å…¥å±é™©åŒºåŸŸ. </p> <p> (2)对尚未åŞ成或已失åŽÈ»“构稳定的脚手枉™ƒ¨ä½åº”加设临时支撑或拉¾l? </p> <p> (3)使用安全带时,在无可靠的安全带扣挂物时,应拉讑֮‰å…¨ç‘Ñ. </p> <p> (4)拆除脚手架时,要设量提升或下吊设施,¼›æ­¢æŠ›æŽ·. </p> <p> (5)吊、挂、挑½{‰å¯¿UÕdŠ¨è„šæ‰‹æž¶åœ¨¿UÕdŠ¨è‡³ä½œä¸šä½¾|®åŽ,应采取撑、拉办法ž®†å…¶å›ºå®šæˆ–减ž®‘其晃动. </p> <p> 2.操作òq›_°(作业é?斚w¢ </p> <p> (1)除高度在2m以内的装修脚手架允许使用2块脚手板å¤?其他脚手架作业面均不得少äº?块脚手板,脚手板之间不留空éš?脚手板与墙面之间的空隙一般不大于200mm. </p> <p> (2)脚手板在长度方向采用òqÏxŽ¥æ—?其相接端头必™å»é¡¶ç´?其端部下的小横杆应固定牢å›?不得‹¹®æ,以免产生滑动,ž®æ¨ªæ†ä¸­å¿ƒåˆ°æ¿ç«¯çš„距¼›Õdº”控制åœ?50-200mm范围å†?处于脚手架始、末端的脚手板应与脚手架可靠拴接;采用搭接æ—?搭接长度不得ž®äºŽ300mm,其始末端也必™åÀL‹´¾l“牢å›? </p> <p> (3)作业面äÍ外侧立面的防护设æ–? </p> <p> 可采ç”?脚手板加两道防护栏杆: </p> <p> 三道栏杆加外围塑料编¾l‡å¸ƒ(高度不低äº?.0m或按步距讄¡½®). </p> <p> 两道杠杆¾l‘挂高度不小äº?m的竹½W? </p> <p> 两道栏杆满挂安全立网. </p> <p> 其他可靠的围护办æ³? </p> <p> (4)临街面和äºø™¡Œ˜qè¾“通道斚w¢ </p> <p> ①采用塑料编¾l‡å¸ƒã€ç«¹½W†ã€å¸­å­æˆ–½‹·å¸ƒž®†è„šæ‰‹æž¶çš„äÍ街面完全ž®é—­. </p> <p> ②在临街面满挂安全网,下设安全通道.通道的顶盖应满铺脚手板或其他能可靠承接坠落物的材æ–?½‹·é¡¶ä¸´è¡—的一侧应è®ùN«˜äºŽç¯·™å¶ä¸ž®äºŽ0.8m的挡æ?以免落物反弹到街ä¸? </p> <p> ③脓˜q‘或½I¿è¿‡è„šæ‰‹æž¶çš„äºø™¡Œå’Œè¿è¾“通道必须讄¡½®æ¿ç¯·. </p> <p> ④上下脚手架的有高度差的入口应设坡道或踏æ­?òq¶è®¾æ æ†é˜²æŠ¤. </p> <p> ä¸?使用脚手架的安全操作 </p> <p> (1)使用药‚²å¿…é¡»½W¦åˆä»¥ä¸‹è§„定 </p> <p> ①作业面上的药‚²(包括脚手æÑ€äh员、工具和材料½{?,设汁无规定时,¾l“构脚手架不­‘…过4KN/m2装修脚手架不­‘…过kN/m2;¾l´æŠ¤è„šæ‰‹æž¶ä¸­‘…过1kN/m2. </p> <p> ②作业面上的药‚²åº”均匀分布,避免药‚²˜q‡å¤§åœ°é›†ä¸­åœ¨ä¸€èµ? </p> <p> ③脚手架的铺脚手板层和同时作业层的数量不­‘…过规定. </p> <p> ④垂直运输设æ–?井字架等)与脚手架之间的è{˜qåã^台的铺板层数量和药‚²æŽ§åˆ¶åº”不­‘…出施工¾l„织设计的规å®?不得ä»ÀL„å¢žåŠ é“ºæ¿å±‚数量和­‘…量堆放施工材料. </p> <p> ⑤过梁、扣件等应随˜qéšå®‰è£…,不得存放在脚手架ä¸? </p> <p> ⑥较重的施工讑֤‡(如电焊机½{?不得攄¡½®åœ¨è„šæ‰‹æž¶ä¸? </p> <p> (2)不得ä»ÀL„æ‹†é™¤è„šå­æž¶çš„基本构äšg和连墙äšg,不得ä»ÀL„æ‹†å¸è„šäºŽæž¶çš„各种安全防护设施. </p> <p> (3)正确使用脚手架的基本规定 </p> <p> ①工作面上的材料应及时清ç?保持工作面规整畅é€?不要乱放工具材料,以免影响作业安全和发生掉物伤äº? </p> <p> ②每‹Æ¡æ”¶å·¥æ—¶,架上材料应用å®?一时未用完的应堆码整齐. </p> <p> ③在作业面上˜q›è¡Œæ’¬ã€æ‹‰ã€æŽ¨ã€æ‹¨½{‰æ“ä½œæ—¶,要采取正¼‹®å§¿åŠ?站稳或手扶牢固的支持ç‰?以免用力˜q‡çŒ›æ—¶èín体失åŽÕdã^½EÏxˆ–把东西甩å‡? </p> <p> ④在作业面上˜q›è¡Œç”늄Šä½œä¸šæ—?应采取道靠的防火措施.(具体查看:脚手架的防火要求及措æ–? </p> <p> 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