How to build safe passage and protective shed?

Safety is very important to everyone. Here, Zhong Da Consulting will introduce the construction methods of safe passage and protective shed in detail for your reference.

One. Basic regulations

65438+

2. Scaffolding with steel fasteners or other steel materials should be used for safe passage and protective shed, and bamboo and wood bars are strictly prohibited to build protective shed.

3. Double-layer orthogonal bamboo scaffolding or double-layer orthogonal 18 thick wooden formwork should be laid on the top of the safe passage and protective shed, and the horizontal hard protection and closed fence or baffle should be able to bear the uniform static load of 10kPa as a whole. In the main channel, transfer platform, the safety channel in the descending curve of the unloading platform and the top of the tower crane protective shed, 50-thick double-layer orthogonal wooden boards are tightly laid.

4, especially important or large-scale safe passage, protective shed and cantilever protection facilities must formulate special technical scheme, approved by the technical director of the enterprise before implementation.

5, the erection of safe passage

5. 1 The clearance height and width of the safe passage shall be determined according to the position of the passage and the traffic requirements of people and vehicles. The height is generally not less than 3.5m, and the width is generally not less than 3m. For buildings with a height below 15m, the length of the entrance and exit passage should not be less than 3m; For buildings with a height of 15-30m, the length of the entrance and exit passages should not be less than 4m, and for buildings with a height exceeding 30m, the length of the entrance and exit passages should not be less than 5m.

The length of the channel is calculated from the outside of the scaffold.

5.2 The foundation of the upright post must be hardened, and no ground settlement shall occur during the service life of the channel. Poles must be provided with sweeping poles and supports along the channel direction.

5.3 The vertical distance of the vertical pole of the conventional safe passage shall not exceed 1200mm, the cantilever size of the protective shed shall be 300~500mm, and the interlayer spacing of the double-layer protective shed shall be 500~600mm.

5.4 For the safe passage with a width of more than 3.5m or a height of more than 4m, the spacing between vertical poles should be encrypted or double vertical poles, section steel and scaffolding pipe lattice columns should be adopted, and the longitudinal cross bars should be made of section steel or load-bearing scaffolding should be erected.

5.5 One side of the safe passage shall be provided with an isolation railing to guide pedestrians through the safe passage, and it shall be closed with a federated eye network if necessary.

Second, the way of protection

1, safe passage in the wild

Figure 18(a) Front view of site safety passage

Figure 18(b) Side view of the on-site safe passage

2. Safe passage into the building

Figure 19(a) Front view of safe passage into the building

Figure 19(b) Side view of safe passage into the building

3, construction elevator, material hoist ground feeding safety channel.

Fig. 20(a) Front view of the safety passage of the ground feed inlet of the construction elevator and the material elevator.

Fig. 20(b) is a side view of the safety passage of the ground feed inlet of the construction elevator and the material elevator.

4. Street access

When the pedestrian passage on the street is not at a safe distance from the construction building, it is necessary to set up a pedestrian protection passage with a clearance height of not less than 3m, which is the same as the safety passage on the construction site, and set up obvious warning signs, guiding signs and facilities.

5, safety protection shed

Fig. 22(a) Front view of equipment protection shed

Fig. 22(b) plan view of protective shed

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