(see 6.4.5 of the specification) 5) when the scaffold starts to be erected or the lower part of the scaffold can not be provided with wall connecting parts temporarily, the throwing support shall be set up with 6 spans apart
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The distance between the edge of the end fastener cover plate and the rod end shall not be less than 100 mm
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The wall connecting rod in the wall connecting parts shall be set horizontally
. 
(see jgj130-2011 technical code for safety of steel tubular scaffold with couplers in building construction (the same below) 7.1.1) 2) the scaffold erection and dismantling personnel must be professional scaffolders who have passed the training and examination of government departments and issued legal certificates, and work with certificates after passing the regular physical examination
. 
3) Scaffold erection personnel must wear safety helmet, protective glasses, reflective vest, labor protection shoes and safety belt
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The throwing support shall be fixed on the scaffold with full-length rods and rotating fasteners
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(see specification 7.1.5) 6) after the scaffold foundation passes the acceptance, it shall be set out and positioned according to the requirements of construction organization design or special scheme
. 
Common specifications of bowl buckle scaffold III
. 
Vertical pole 1) the elevation of base plate or base bottom of vertical pole should be 50 mm ~ 100 mm higher than natural floor, and the base plate should be wood base plate with length of no less than 2 spans, thickness of no less than 50 mm and width of no less than 200 mm
. 
4
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Scaffold board 1) scaffold board of operation layer shall be fully, stably and solidly paved; (see specification 6.2.4) 2) stamping steel scaffold board, wood scaffold board and bamboo scaffold board shall be set on three horizontal bars
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Wall connecting parts 1) the wall connecting parts shall be set close to the main joint, and the distance from the main joint shall not be more than 300 mm (see specification 6.4.3)
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The longitudinal sweeping pole shall be fixed on the vertical pole not more than 200 mm away from the bottom of the steel pipe with right angle fasteners
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However, both ends of the scaffold board should be reliably fixed with the horizontal bar to prevent overturning
. 
4) except for the top step of the top layer, the joints of other layers must be connected by butt fasteners
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2) the wall connecting parts shall be set from the first longitudinal horizontal bar of the bottom layer
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The butt fastener of the vertical pole shall be staggered, and the joints of two adjacent vertical poles shall not be set in synchronization
. 
(see specification 6.2.4) 3) the scaffold board shall be laid by butt joint or lap joint
. 
When the scaffold board is butt laid, two horizontal bars shall be set at the joint, the overhanging length of the scaffold board shall be 130mm ~ 150mm, and the sum of the overhanging length of the two scaffold boards shall not be greater than 300mm; when the scaffold board is overlapped, the joint shall be supported on the horizontal bar, the overlapping length shall not be less than 200mm, and the length of the overhanging horizontal bar shall not be less than 100mm
. 
When it cannot be set horizontally, it shall be connected downward to one end of the scaffold
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The inclination angle with the ground shall be between 45 ° and 60 ° and the distance from the center of the connection point to the main node shall not be greater than 300 mm
. 
Longitudinal horizontal bar 1) the longitudinal horizontal bar shall be set inside the vertical bar, and the length of a single bar shall not be less than 3 spans; (see specification 6.2.1) 2) the longitudinal horizontal bar shall be lengthened by butt joint or lap joint, and the joint of two adjacent longitudinal horizontal bars shall not be set in synchronous or same span; the distance between two adjacent joints of asynchronous or different spans in horizontal direction shall not be less than 500mm The distance between the center of each joint and the nearest main node shall not be greater than 1 / 3 of the longitudinal distance (see 6.2.1) 3) the lap length of longitudinal horizontal members shall not be less than 1m, and three rotating fasteners shall be set at equal intervals for fixation; the distance between the edge of the fastener cover plate at the lap end and the end of the lap longitudinal horizontal bar shall not be less than 100 mm (see 6.2.1) 4) when stamping steel scaffold board, wood scaffold board and bamboo strand are used For scaffold board, the longitudinal horizontal bar shall be used as the support of the transverse horizontal bar and fixed on the vertical bar with right angle fasteners
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The throwing support shall be removed after the wall connecting parts are erected
. 
The inclination angle a between the inclined rod and the ground should be between 450 and 600
. 
(see specification 6.2.4) 6
. 
(see specification 7.3.1) 7
.
Beijing Shanghai Tianjin Chongqing Guangdong Jiangsu Shandong Henan Sichuan Zhejiang Fujian Hubei Hebei Shaanxi Hunan Anhui Jiangxi Guangxi Guizhou Yunnan Shanxi Gansu Liaoning Xinjiang Inner Mongolia Jilin Hainan Qinghai Ningxia Tibet Heilongjiang Global The name of each part of the scaffold II
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Both ends of the transverse horizontal bar of double row scaffold shall be fixed on the longitudinal horizontal bar with right angle fasteners (see 6.2.1 of the specification)
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The distance between the axis of the vertical pole above the slope and the slope shall not be less than 500mm (see 6.3.3 of the specification)
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4) The components and fittings that have passed the inspection shall be classified according to the varieties and specifications, stacked neatly and stably, and there shall be no ponding in the stacking site
.
(see specification 6.2.3) 5
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(see specification 6.4.7) 6) the double row scaffold must be erected in accordance with the construction progress, and the erection height at one time shall not exceed two steps above the adjacent wall connecting parts; if it exceeds two steps above the adjacent wall connecting parts, and it is impossible to set the wall connecting parts, measures such as supporting and fixing shall be taken to tie up with the building structure
.
The horizontal sweeping pole shall be fixed on the vertical pole close to the bottom of the longitudinal sweeping pole with right angle fastener
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When it is difficult to set at this place, other reliable measures shall be adopted to fix them (see specification 6.4.3)
.
Preparation for erection 1) construction scheme and disclosure: safety technical disclosure shall be made to the scaffolders before scaffold erection
.
scaffold erection 1
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When the length of the scaffold board is less than 2m, it can be supported by two horizontal bars
.
The official account of the regional “building management” has come to click attention
.
3) the wall connecting parts shall be arranged in diamond shape, or adopt diamond shape Square and rectangular layout (see 6.4.3) 4) both ends of the open scaffold must be equipped with wall connecting pieces, and the vertical spacing of wall connecting pieces shall not be greater than the floor height of the building, and shall not be greater than 4m
.
(see specification 6.3.1) (see specification 7.2.3) 2) the scaffold must be equipped with vertical and horizontal sweeping poles
.
The transverse horizontal bar at the non main node on the operation layer of the transverse horizontal bar 1) shall be set with equal spacing according to the needs of supporting scaffold board, and the maximum spacing shall not be less than 1 It shall be greater than 1 / 2 of the longitudinal distance; (see specification 6.2.2) 2) the distance between the end of the horizontal bar against the wall and the decorative surface of the wall shall not be greater than 100 mm; (see specification 7.3.6) 3) a horizontal bar must be set at the main node, which shall be connected with right angle fasteners and shall not be removed
.
(see specification 7.1.3) 5) debris in the erection site shall be removed, the erection site shall be leveled, and the drainage shall be smooth
.
The type of door opening truss should be determined according to the following requirements: when the step distance (H) is less than the longitudinal distance (LA), type A should be adopted; when the step distance (H) is greater than the longitudinal distance (LA), type B should be adopted, and should meet the following requirements: 1) when h = 1.8m, the longitudinal distance should not be greater than 1.5m; 2) when h = 2.0m, the longitudinal distance should not be greater than 1.2m.
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The staggered distance of the two separated joints separated from one vertical pole in the height direction shall not be less than 500mm; the distance between the center of each joint and the main node shall not be greater than 1 / 3 of the step distance; (see 6.3.6) 5) when the vertical pole adopts lap joint length, the lap joint length shall not be less than 1m, and the lap joint length shall be adopted Fixed with no less than 2 rotating fasteners
.
(see specification 7.2.4) 2
.
Door opening 1) the single and double row scaffold door opening should adopt the structure of rising inclined bar and parallel chord truss (as shown in the figure below)
.
(see 6.3.2 of the specification) 3) when the scaffold upright pole foundation is not at the same height, the vertical sweeping pole at the high place must be extended to the low place for two spans and fixed with the upright pole, and the height difference shall not be greater than 1m
.
The probe length should be 150 mm
.
(see specification 6.3.6) 3
.
