人工挖孔桩钢筋笼立式绑扎及安装方法?如何加固?

2024-11-29 08:47:06
推荐回答(5个)
回答(1):

1.1 技术准备 

施工图已到位,经过审核已澄清有关技术问题,技术人员已认真熟悉施工图纸、规范及技术标准。人员经培训合格后进场,特种工持证上岗。 

安全防护用品:穿绝缘鞋、戴绝缘手套和防护面罩或深色防护眼罩等已发放给操作人员,操作人员熟知使用方法。

 

1.2 材料准备由于甲供钢筋未到位,挖孔桩钢筋暂由项目部自购,其品种、级别和规格必须符合设计要求,并附有产品合格证、附件清单和有关材质报告单或检查报告,现场质检员必须按要求进行外观检查。

 

检查每批钢筋的外观质量。钢筋表面不得有裂纹、结疤和折叠;表面的凸块和其它缺陷度的深度和高度不得大于所在部位尺寸的允许偏差钢筋的级别、直径是否与设计相符,查验出厂证明书及复试报告单是否符合有关标准要求。

 

直径25mm及25mm以上的钢筋接长采用机械接头的方法接长,机械连接必须符合中华人民共和国行业标准(JGJ107-2003)《钢筋机械连接通用技术规范》中I级接头要求,同一断面接头数量不超过50%,接头需要相互错开100cm以上。 按材料表或技术交底书进行配料。 由于工期要求,三集中场地钢筋场尚未完成,因此钢筋采用现场绑扎。后续完成钢筋钢筋加工厂,对场地进行硬化,修整完排水系统,规划场地。

 

2技术要求:

2.1所使用的机械及设备具有合格的出场证明及使用期限。 

2.2 在大面积进行钢筋笼加工及安装前进行施工工艺试验,确定工艺参数。 

2.3 由于6#墩条件限制,无法对钢筋笼进行吊装,钢筋笼只能在台位处绑扎安装,我项目部采钢筋笼立式绑扎及安装方法,其余台位均采用滚扎式方法加工。

 

3施工程序及工艺流程:

 

3.1施工程序

 

主要施工程序为;原材料报检→可焊性试验→焊接参数试验→设备检查→施工准备→台具模具制作→钢筋笼分节加工→声测管安制→钢筋笼底节吊放→第二节吊放→校正、焊接→最后节定位。

 

3.2工艺流程 

回答(2):

人工挖孔桩钢筋笼一般情况下采用滚扎式方法、意思是把立式钢筋放躺着绑扎的、先做好固定箍(是封闭焊接完成的、做这箍筋专做一个模型、把12或14的钢筋围着模型转一圈接头处焊接就可以了)、把立式钢筋围着固定箍均匀的排布 用电焊点死,看圆的大小决定固定箍的间距的,一般有2m或1.5m设置一个的,再就是把圆盘钢筋一头固定在放躺的钢筋上开始滚立式钢筋 、一边滚一边按间距螺旋绑扎就可以了,起步和终结部位都是平绕圈一个半圆的,你用螺纹钢筋斜绑或斜焊把笼给加固一下。
把绑扎好的笼用吊车或塔吊吊进去就完成了。

回答(3):

这个在图纸上应该有详细说明的。
绑扎方法一般是主筋均匀分布,然后用螺纹钢作盘旋状将主筋固定,固定方法是采用点焊,加固会用到专门的加固筋(一般不叫加固筋,而是叫加劲筋),隔4m加一道,也是采用点焊的方法。
以上仅为本人施工经验,一切均以贵方施工图为准。

回答(4):

加钢筋焊接。一般单面焊就可以了。绑扎长度40D,单面焊焊缝长度10D。

回答(5):

..,在井内用电焊?绑绑就行啦

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