Accumulate a little safety knowledge every day and improve it over time! 001 there is no safety passage at the entrance and exit of the main building, and the cantilever layer of the upper scaffold is not closed, so the cross operation of the entrance and exit passage is very dangerous
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002 the bottom layer and side of the cantilever steel platform are not closed, and lag behind the removal of the outer frame, and the hanging hook is very dangerous when the material platform is removed
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003 the formwork of the cantilever layer of the cantilever frame has been removed, the bottom layer sealing is seriously lagging, and the scaffold board is not fully paved, so there is a large cross operation Risk, object strike and falling risk
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59-2011 standard for safety inspection of building construction, article 3.8.4 004: the side of cantilevered floor is not closed, the objects on the floor are easy to fall, and the object strike risk is high
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005 cantilevered I-steel embedded parts are not installed with reinforcing bars
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No less than two 1.5m long and 18mm diameter grade III rebar are required in the specification drawing
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006 cantilevered I-beam is anchored on the cantilevered balcony structure without calculation verification and unloading measures
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Article 6.10.2 — 6.10.5 of jgj130-2011 “technical code for safety of fastener scaffold in building construction”: the supporting point of cantilever steel beam shall be set on the structural beam, and shall not be set on the overhanging balcony or cantilever plate, otherwise reinforcement measures shall be taken
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007 cantilever I-steel anchor side, not in accordance with the specification using wood wedge plug fixed
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008 cantilever unloading platform, the main wire rope is not stressed, and the auxiliary wire rope is not straightened, which does not meet the force requirements of the scaffold
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The cantilever I-beam only needs to take anchoring measures to prevent the material platform from pulling out when the tower crane hoists materials
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Jgj80-2016 “technical code for safety of construction work at height” 6.4.3 for cantilevered operation platform with cable-stayed mode, two cable-stayed wire ropes shall be set on both sides of the platform, each of which shall be separately calculated and set up
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Scaffold shall be set up on 009 slope, and no sweeping pole shall be set
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The height of guardrail protection of 010 unloading platform is less than 1.2m, and no hard guardrail protection shall be used on the side
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The outer frame of jgj80-2016 “technical code for safety of construction work at height” 011 is not installed with sweeping pole
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There is a hole at the bottom of 012 outer frame, which is not reinforced according to the door opening reinforcement measures
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013 the relative position of the big cross bar and the small cross bar is wrong
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The small crossbar should be at the bottom and the large crossbar should be at the top
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014 floor unloading platform is not set independently and is connected with the outer frame
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Jgj80-2016 “technical code for safety of construction work at height” 015 template support is not set independently, and connected with the outer frame
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016 floor unloading platform is overloaded, and the cross bar is deflected
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017 scaffold I-steel was installed in the stairwell, which seriously affected people walking and evacuation
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018 scaffold I-steel was installed in the stairwell, which seriously affected people’s walking and evacuation
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019 temporary scaffold was not reinforced by wall connecting parts, throwing bracing and other measures, and 020 cross bracing was not set to the top of the outer frame
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Jgj130-2011021 the steel pipe of the wall connecting part does not top to the main body of the structure, so it can not be regarded as a rigid connection
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022 steel pipe connected to the wall does not top to the main body of the structure, so it can not be regarded as rigid connection
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023 elevator shaft grillage erection is not standard, the foundation does not fall on the I-beam, the vertical pole does not take supporting measures, and the vertical pole has a large inclination
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024 the joints of adjacent large cross bars are in the same longitudinal distance, and they are not reinforced according to the open scaffold
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025 scaffold opening, there is no increase in transverse diagonal bracing, and each layer is not more than 4 meters to install wall pieces
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026 cantilever unloading platform, the outside is lower than the inside
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Jgj80-2016 “technical code for safety of construction work at height” 027 between the outer frame and the main structure, there is no every 2 layers, and no more than 10 meters, set up a pocket net protection
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The risk of falling from height is high
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According to jgj59-2011 “standard for safety inspection of building construction”, 028 cantilever I-beam uses rebar as anchor
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Deformed steel bars can not be used as embedded stress components
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029 double nuts of I-steel anchor are not tightened, 030 double nuts of I-steel anchor are not tightened, 031 I-steel is anchored in the special part of stairwell, and the welding length is insufficient
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Spot welding is almost used in the lower part as shown in the figure
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Round steel of no less than 16 should be used, and it is better to bend it at one time instead of welding
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032 Overhanging Scaffold, the number and direction of safety wire rope fixed rope clip are wrong
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Jgj80-2016 “technical code for safety of construction work at height” 033 the auxiliary wire rope of unloading platform is not tightened
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According to jgj80-2016 “technical code for safety of construction work at height”, each steel wire rope should be ready to be stressed at any time, that is to say, the auxiliary steel wire rope should be straightened but not stressed
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034 short support pull-up scaffold
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Before the installation of I-beam top tie rod, I-beam has no lower support
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The temporary scaffold around 035 basement was not installed with safety net, scaffold board and throwing support, which was erected randomly and unqualified
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