满堂脚手架工程施工方案 下载本文

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relationship, established equivalent relationship 14, and subject: application problem (4)--scores and percentage application problem review content overview answers scores, and perceoblem of key is: according to meacs ning, (1) determine standard volume (units \o\n inory 1-d shapes ar-line solution. Category fraction multiplication word problem score Division applications engineering problem problem XV, a subject: review of the measurement of the amount of capacity, measurement and units of measurement of common units of measurement and their significance in rate 1, currency, length, area, volume, unit size, volume, weight and rate. (Omitted) 2, commonly used time units and their relationships. (Slightly) with a measurement units Zhijian of of poly 1, and of method 2, and poly method 3, and of method and poly method of relationship measurement distance of method 1, and tool measurement 2, and estimates 16, and subject: geometry preliminary knowledge (1)--line and angle review content line, and segment, and Ray, and vertical, and parallel, and angle angle of classification (slightly) 17, and subject: geometry preliminary knowledge (2)--plane graphics review content triangle, and entage application prdges shaped, and round, and fan axisymmetric graphiperimeter and area combination graphics of area subject : Preliminary knowledge (3)-review of solid content catege divided into: cylinder and cone 2, column is divided into: cuboid, square 3, cone cone of the features of cuboids and cubes relationship between characteristics of circular cone is slightly solid surface area and volume 1, size 2, table ...和榆林煤液化示范项目催化剂制备

电仪分析综合楼工程

满堂脚手架施工方案

编制人: 审核人: 批准人:

兖矿东华建安公司 二O一三年四月

relationship, established equivalent relationship 14, and subject: application problem (4)--scores and percentage application problem review content overview answers scores, and perceoblem of key is: according to meacs ning, (1) determine standard volume (units \o\n inory 1-d shapes ar-line solution. Category fraction multiplication word problem score Division applications engineering problem problem XV, a subject: review of the measurement of the amount of capacity, measurement and units of measurement of common units of measurement and their significance in rate 1, currency, length, area, volume, unit size, volume, weight and rate. (Omitted) 2, commonly used time units and their relationships. (Slightly) with a measurement units Zhijian of of poly 1, and of method 2, and poly method 3, and of method and poly method of relationship measurement distance of method 1, and tool measurement 2, and estimates 16, and subject: geometry preliminary knowledge (1)--line and angle review content line, and segment, and Ray, and vertical, and parallel, and angle angle of classification (slightly) 17, and subject: geometry preliminary knowledge (2)--plane graphics review content triangle, and entage application prdges shaped, and round, and fan axisymmetric graphiperimeter and area combination graphics of area subject : Preliminary knowledge (3)-review of solid content catege divided into: cylinder and cone 2, column is divided into: cuboid, square 3, cone cone of the features of cuboids and cubes relationship between characteristics of circular cone is slightly solid surface area and volume 1, size 2, table ...和满堂脚手架工程施工方案

一、 满堂脚手架所使用材料和搭设方法

1、主要杆件有:立杆、横杆、水平拉杆、剪刀撑、栏杆、扫地杆等。 2、材质要求:

钢管、扣件、丝杠:无锈蚀,弯曲,无烂口,并定期刷防锈油漆。密目网、竹架板、木板、方木质量必须符合有关规定要求。

3、架体采用Ф48×3.5的Q235钢管。立杆支撑在丝杠或结构板上,丝杠下部垫设短方木。

4、脚手架按步高1.5m,纵向、横向水平杆间距1m,纵向、横向立杆间距1m,顶部水平杆为双钢管。脚手架外立杆四周连续设置剪刀撑,内杆每隔两排立杆沿纵向设一道剪刀撑,剪刀撑水平宽度为四跨,垂直宽度为四步与水平夹角在45°—60°之间。立杆下必须全设扫地杆,为双向每跨满设,扫地杆距地面高度≤300mm。

5、 栏杆:建筑物四周按规定设置1.2m高的防护栏杆。正面设安全通道。

二、构造要求及技术措施

本工程结合建筑结构形式,在结构施工时,主体内采用满堂式钢管脚手架。脚手架安装完毕后必须经过安全检查员验收后才能使用。

1、基本要求:用扣件式钢管搭设的脚手架,是保证安全施工的结构,它要求承受施工过程中垂直和水平的作用力,直接影响施工作业的顺利和安全进行,因此脚手架必须有足够的承载力、刚度和稳定性,在施工中受到各种正常荷载时不发生失稳倒塌、变形倾斜、摇晃或扭曲现象,以确保安全。

2、受荷情况:采用Ф48×3.5钢管、扣件、丝杠等构成的脚手架,立杆和水平杆是主要受力构件,剪刀撑是保证脚手架整体强度和稳定性的杆件,并具有加强脚手架抵抗垂直和水平作用力的能力,扣件是脚手架组织整体的连接件和传力件。

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relationship, established equivalent relationship 14, and subject: application problem (4)--scores and percentage application problem review content overview answers scores, and perceoblem of key is: according to meacs ning, (1) determine standard volume (units \o\n inory 1-d shapes ar-line solution. Category fraction multiplication word problem score Division applications engineering problem problem XV, a subject: review of the measurement of the amount of capacity, measurement and units of measurement of common units of measurement and their significance in rate 1, currency, length, area, volume, unit size, volume, weight and rate. (Omitted) 2, commonly used time units and their relationships. (Slightly) with a measurement units Zhijian of of poly 1, and of method 2, and poly method 3, and of method and poly method of relationship measurement distance of method 1, and tool measurement 2, and estimates 16, and subject: geometry preliminary knowledge (1)--line and angle review content line, and segment, and Ray, and vertical, and parallel, and angle angle of classification (slightly) 17, and subject: geometry preliminary knowledge (2)--plane graphics review content triangle, and entage application prdges shaped, and round, and fan axisymmetric graphiperimeter and area combination graphics of area subject : Preliminary knowledge (3)-review of solid content catege divided into: cylinder and cone 2, column is divided into: cuboid, square 3, cone cone of the features of cuboids and cubes relationship between characteristics of circular cone is slightly solid surface area and volume 1, size 2, table ...和3、脚手架基础:搭设满堂式脚手架时,脚手架的场地必须夯实、平整,基础结构板面砼强度达到设计要求75%以上。

4、垂直荷载传力路线: 施工荷载→多层板、方木→水平杆→丝杠 立杆→基础或结构板面。 三、满堂脚手架设计计算

1、 计算依据:

1.1施工设计图纸,施工组织设计,满堂脚手架施工方案。

1.2《建筑施工扣件式钢管脚手架安全技术规范》JGJ130-2001、 JGJ130-2011及相关国家规范规定。

2、 计算内容: 2.1基本参数:

脚手架按步高1.5m,纵向、横向水平杆间距1m,纵向、横向立杆间距1m,顶部水平杆为双钢管。脚手架外立杆四周连续设置剪刀撑,内杆每隔两排立杆沿纵向设一道剪刀撑,剪刀撑水平宽度为四跨,垂直宽度为四步与水平夹角在45°—60°之间。立杆下必须全设扫地杆,为双向每跨满设,扫地杆距地面高度≤300mm。

2.2计算跨度取值:根据杆件布置情况,固定架立杆下端部分受力最大。沿横向取固定架1m宽作为计算单元。纵向水平杆取立杆纵距,横向水平杆取立杆横距。

2.3计算条件: 扣件连接点均按铰接计算,所有荷载都化为作用于点上的集中荷载。结构板厚为200mm。

2.4水平杆抗弯强度计算: 1m长钢筋混凝土结构自重荷载值: q恒 =1m×0.2m×25KN/m3=5KN/m 施工均布荷载值: q活=3KN/㎡×1m=3KN/m 施工总荷载值: q=1.2q恒+1.4q活×KQ

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