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矩形风管侧纵向装配抗震支架

文章来源:抗震支架 作者:抗震支架小编 发布时间:2018-06-02 16:37:29 浏览次数:3387
[导读]:矩形风管侧纵向装配抗震支架通过对机电管线及设备的地震力进行计算,并对管线及设备与机构体的连接进行抗震加固并对其进行抗震验算,使机电管线及设备与建筑结构体建立可靠连接,可将机电管线及设备承受的地震作用全部传递到结构体上,使其遭遇到设防烈度的地震影响后能迅速恢复运转,进而达到尽快恢复建筑物使用功能的目的。矩形风管侧纵向装配抗震支架与建筑结构体牢固连接,以地震力为主要荷载的抗震支撑设施。由锚固体、加固吊杆、抗震连接构件及抗震斜撑组成。


矩形风管侧纵向装配抗震支架与建筑结构体牢固连接,以地震力为主要荷载的抗震支撑设施。由锚固体、加固吊杆、抗震连接构件及抗震斜撑组成。

抗震支架材质:Q235B

抗震支架表面处理:蓝白锌/热浸镀锌/VCI/烤漆

矩形风管侧纵向装配抗震支架系统方案:

依据国家标准,结合实际工程情况,做出方方便合理,安全可靠的产品支架设计方案

设计依据:

1.1 《管道支吊架》第1部分:技术规范 GB/T 17116.1-1997

1.2 《管道支吊架》第2部分:管道连接部件 GB/T 17116.1-1997

1.3 《管道支吊架》第3部分:中间及建筑结构连接件 GB/T 17116.1-1997

1.4 《建筑给水排水及采暖工和施工质量验收规范》 GB50242-2002

1.5 《室内管道支架及吊架》 03S402

1.6 《装配式管道吊挂支架安装图》 03SR417-2

1.7 《建筑结构荷载规范》 GB50009-2012

1.8 《钢结构设计规范》 GB50017-2003

1.9 《钢结构工程施工及验收规范》 GB50205-2001

编制技术条件:

2.1管架计算间距

管架计算间距一般分为1.5米、3.0米、6.0米三种。如遇特殊情况,可根据实际情况自行设计管架间距。

电缆桥架、通风排烟管道的安装,应考虑桥架或几管的最小长度。

2.2管道重量计算

保温管道:按设计支吊架间距内的管道自重、满管水重、60mm厚度保温层重及以上三项之和10%的附加重量计算,保温材料容重按岩棉100KG/m³计算。

不保温管道:按设计支吊架间距内的管道自重、满管水重及以上两项之和10%的附加重量计算。

电缆桥架、通风管道:按照国家相关标准要求,按最大设计荷载计算。考虑最大荷载、自身重量及以上二项之和的10%的附加重量计算0

2.3设计荷载

垂直荷载:考虑制造、安装等因素,采用支吊架间距的标准荷载乘以1.35的荷载分项系数。

水平荷载:管道支吊架的水平荷载按垂直荷载的0.3倍计算。

地震荷载:按地震设防烈度≤8度计算地震作用,不考虑风荷载。

2.4横梁抗弯强度计算

抗弯强度式:

Mx/Wx+ MY/WY≤f

式中

Mx  MY  :所验算截面绕X轴,Y轴的弯距(M.mm)

Wx  WY  :所验算截面对X轴,Y轴的截面抵抗矩(mm³)

f:钢材的抗弯强度设计值(N/mm²)

由于采用型钢材质为Q235,故本计算书取f=215 N/mm²

2.5横梁抗剪强度计算

抗剪强度式:

 τ=VS/(lX tW) ≤fV

式中

τ:抗剪强度(N/mm²)

V :截面承压处所受剪力(N)

S : 剪力处以上截面对中性轴的面积矩(mm³)

lX  :截面惯性矩(mm4)

tW  :厚度(mm)

fV   :抗剪强度设计值(N/mm²)

由于采用型材为Q235,故本计算书取fv=125 N/mm²

2.6整体稳定性计算

管架整体稳定性计算式:

δ =Mmax/(Φb*W)<f

式中:

δ:所验算截面承受受力方向的最大应力(N/mm²)

Mmax:所验算截面对X轴Y轴的弯矩(N.mm)

Φb:整体稳定系数,一般取值0.8

W:所验算截面对X轴,Y轴的截面低抗矩(mm³)

f:抗剪强度设计值(N/mm²)

由于采用型材材技为Q235,故本计算书取f=215 N/mm²

2.7受弯梁挠度和受压构件长细化比

受弯梁的挠度不大于L/200(L为受弯构件的跨度,对悬臂梁和伸臂梁为悬伸长度的2倍)

受压构件允许长细比不超过120

2.8立柱强度计算

抗弯强度式:N/A≤f

N:立柱所受拉力(N)

A:立柱净截面积(mm²)

f:钢材伉拉强度设计值(N/mm²)

由于采用型材材技为Q235,故本计算书取f=215 N/mm²

矩形风管侧纵向装配抗震支架的基本原理:

通过对机电管线及设备的地震力进行计算,并对管线及设备与机构体的连接进行抗震加固并对其进行抗震验算,使机电管线及设备与建筑结构体建立可靠连接,可将机电管线及设备承受的地震作用全部传递到结构体上,使其遭遇到设防烈度的地震影响后能迅速恢复运转,进而达到尽快恢复建筑物使用功能的目的。

矩形风管侧纵向装配抗震支架产品优点:

1、组合式构件、装配式施工,整齐、美观、大方;

2、各专业协调好,可控制室内空间标高;

3、受力可靠、稳定;

4、跟踪式服务,在施工现场进行实时指导、解惑;

5、安装速度快,施工工期短,无需现场焊接;

6、使用寿命长,后期维护方便;

7、材料预算准;

8、良好的通用性;

9、环保。


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