Through safety inspection, it is found that some safety problems occur repeatedly, especially the burying of I-beam at cantilever material steel platform and unloading platform
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In order to implement the policy of “safety first, prevention first and comprehensive treatment”, further improve the engineering safety management level and prevent accidents, we hereby carry out publicity and Implementation
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1、 The problems of cantilever material steel platform (1) 1
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No special construction plan or design calculation; 2
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The lower support system or upper tie point of cantilever steel platform is not set on the building structure; 3
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Two diagonal rods or steel ropes are not set on both sides of the platform as required; 4
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The steel platform is not set with fixed protective railings or toe boards as required; 5
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The steel platform is not equipped with fixed protective railings or toe boards as required The results show that the deck of the platform is not strict or the deck between the steel platform and the building structure is not strict; 6
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The load limit sign is not set at the obvious place of the platform; 7
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The steel wire rope is not taut and the connection of the steel wire rope is not standardized; 8
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The main reason is that the I-steel is not embedded in the cantilever material steel platform, which leads to the large distance between the outer frame and the vertical pole of the cantilever material steel platform
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（2） Preventive measures: 1
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Special construction scheme shall be prepared for the fabrication and installation of cantilever material steel platform, and design calculation shall be carried out; 2
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The lower support system or upper tie point of cantilever material steel platform shall be set on the building structure; 3
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Two front and back tie rods or steel wire ropes shall be set on both sides of the platform according to the specification requirements; 4
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Fixed anti-corrosion devices shall be installed on both sides of the steel platform 5
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The steel platform and the planking between the steel platform and the building structure should be tight and firm
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6
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The load limit sign shall be set at the obvious position of the platform; 7
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The steel wire rope shall be tightened and the steel wire rope shall be connected in accordance with the specification; 8
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The I-beam shall be embedded at the cantilever material steel platform, and the I-beam at the embedded position shall be fixed after the cantilever material steel platform is moved up, and the outer frame and vertical pole shall be supplemented
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2、 Construction elevator unloading platform (1) common problems construction elevator unloading platform common I-steel embedded is not standard, resulting in the unloading platform and the outer frame is not separated
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（2） Optimization measures construction elevator unloading platform layout.
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