Safety precautions for steel structure construction?

What are the safety precautions in steel structure construction? The following Zhong Da Consulting Bidding Teacher will answer these questions for your reference.

A, safety construction measures

The project manager is the first person responsible for safety construction, and is fully responsible for on-site safety construction;

The construction team leader is the specific person in charge of safety construction, responsible for the implementation of safety construction in the construction area of the team on site;

The safety civilization administrator is a full-time staff of on-site safety construction, responsible for the education, supervision and inspection of safety construction;

The safety supervisor of the team leader is responsible for the safety construction in the construction area of the team, and implements specific safety construction measures;

Clear the responsibility for safety construction, the responsibility goes to people, and all levels are responsible, and the safety construction is effectively implemented;

Implement the national labor protection policy and strictly implement the company's safety and civilized construction management system and regulations;

Set up a project manager to be responsible for the construction site, and implement the system of "who is responsible for the construction and who is responsible for the safety";

Strengthen the education of "safety first" and adhere to the system of disclosure before class, inspection in class and regular meeting on Monday;

Strengthen the publicity of safety construction, and hang slogans and warning signs in a prominent position on the construction site to remind construction personnel;

Wear safety helmet when entering the construction site;

Construction machinery, machines and tools should be routinely inspected before use every day, especially the performance inspection of wire ropes and safety belts should be conducted once a week to ensure that they are in good condition;

During the installation process, the safety protection of on-site machines and tools, equipment and completed projects should be considered;

When the wind speed is 10m/s, sometimes the hoisting work should be stopped; When the wind speed reaches 15m/s, all work must be stopped;

Wear gloves when installing and handling components and boards;

When hoisting, the steel wire rope should be replaced immediately if it is broken in glue, wire and winding;

Special jobs with valid certificates;

At the end of a day's work, the installed buildings should be properly supported to avoid accidents.

Always wear protective glasses when drilling;

Do a good job in on-site safety protection measures, set up scaffolding according to regulations and use it only after passing the inspection.

When installing wallboard, all operating platforms of mobile scaffolding used shall be fixed firmly, and anti-skid measures shall be taken, and protective ropes shall be fastened and safety belts shall be fastened;

There are more than two contact points between the mobile scaffold and the wall, and two throwing brackets are arranged outside; The throwing bracket should be fixed on a solid load-bearing ground;

Before moving, clear the obstacles on the road ahead, fill the potholes, and then move forward after compacting the road surface.

Before each task is implemented, the safety matters should be repeatedly explained to the installation workers;

The company adopts a two-level safety supervision system to realize safety education and safety inspection;

Second, special safety precautions

Prevent falling from high altitude

On-site construction personnel should wear safety helmets, aerial workers should wear safety belts, which should be hung high and used low, and tied in safe and reliable places, and on-site workers should wear non-slip shoes;

The hoisting operation area should be clearly marked and guarded by special personnel. Non-hoisting site operators are strictly prohibited from entering. When the crane is working, it is forbidden to stand under the boom, and at the same time, it is forbidden to stay within the radius of rotation of the boom.

Ladders and lifting platforms for climbing should be firm. When the crane moves the operating platform, it is forbidden to stand on it.

When hoisting, aerial workers should stand on the operating platform, hanging basket and ladder to work. When hoisting a steel beam, a safety protection bracket should be added to its upper chord, and a safety wire rope should be pulled above people's work, so that construction personnel can operate safely on the upper chord of the beam. It is forbidden to walk on unfixed parts.

After the structural foundation is installed and the purlin is in place, it is necessary to remove the safety support on the chord of the beam. Before removing the mounting bracket, pull a brown rope with a diameter of15mm and a length of 90m from the bottom of the columns on both sides as a safety rope to hang the seat belt, so that the safety bracket can be removed and the remaining purlin above it can be installed.

Safety belts, insulated soft-soled shoes and safety measures must be worn for aerial work;

Before you can walk safely, the roof slabs must be completely connected to purlins, and each side is connected to other roof slabs. Do not walk on partially connected or unconnected roof slabs. Don't step on the edge rib of the board, the bend near the board edge and the place within 5 inches from the unfixed board edge;

Single-layer roof slab shall not be used as working platform; People are not allowed to stand on thermal insulation cotton without bearing capacity;

Once you find an oily substance on the roof panel, please wipe it off immediately to prevent it from slipping or falling. When standing on the edge of the panel, workers should always pay attention to prevent dangerous situations and use safety belts, safety nets and handrails.

Hands and feet should be far away from moving heavy objects and lifting equipment; Don't stand under hangers and slings;

(2) to prevent falling objects from hurting people

All kinds of tools and bolts carried by aerial workers should be put in special tool bags. When transferring articles at high altitude, you should hang up the safety rope and don't throw it casually to prevent injury.

During hoisting, scattered objects shall not be piled up or hung on the components, and the scattered objects shall be passed up and down in special bags;

The component binding must be firm, and the lifting point should pass through the center of gravity of the component; When hoisting, it should be stable to avoid vibration or swing. Before the assembly is pulled or fixed, it is not allowed to untie the lifting rigging to prevent the assembly from falling and injuring people.

For the hoisting of steel beams, because the steel beams are irregular I-beams, the binding points are easy to slide, so a steel connecting plate with the thickness of Δ =14 mm is specially made and fastened on the upper chord of the steel beams by bolts.

When lifting parts, the speed should not be too fast, and it is forbidden to rise or fall sharply to prevent parts from falling off.

After the components are installed, check the connection and stability of each component. When the connection is truly safe and reliable, you can loosen the hook and cable.

When hoisting the high-altitude docking assembly, the sliding rope must be tied and its direction must be controlled;

When working in rainy days, necessary anti-skid measures should be taken, and there should be enough lighting for night work;

In particular, it is pointed out that in the process of interlayer lifting, the construction personnel should stand on a stable and reliable ladder when releasing the hook and unloading the cable;

It is forbidden to throw materials downward at high altitude;

(3) Requirements for lifting equipment:

When hoisting, the crane should be commanded by a special person. The commander should be within the sight of the crane driver and can clearly see the whole hoisting process. The crane operator's command gesture should be accurate and the whistle should be bright. The crane driver should concentrate and obey the command, and shall not leave his post without authorization.

In the process of hoisting, when the operation is interrupted due to equipment failure, measures must be taken to deal with it, and members shall not be suspended for a long time;

When the wind force is greater than 6, hoisting operation is prohibited;

Non-drivers are not allowed to enter the cab without authorization. When the crane stops working, stop the slewing and walking mechanism.

Lifting equipment is not allowed to work on the ramp, and the height difference between the two sides of the crane is not allowed to be too large;

If the site conditions are poor and the soil is soft, the soil will become softer after the rain, even though there are sidewalk slabs under the crawler crane. In order to prevent the crawler crane from toppling during walking and hoisting, other machinery should be used to level and compact it again to avoid accidents.

(d) to prevent structural instability after hoisting.

After the component is hoisted in place, the hook can only be removed after preliminary correction and temporary fixation or reliable connection, and the fixing tool or other stabilizing device can only be removed after the component is finally stabilized;

Roof components should be hoisted and fixed in time, and the roof support system should be properly pressed to maintain structural stability;

Before the members with large slenderness ratio are temporarily fixed in place to form a stable unit system, they should be fixed by sliding cables and ground anchors;

For the space system that meets the requirements after overall alignment, all connecting bolts should be checked and tightened to meet the requirements to ensure that it becomes a stable space stiffness unit;

⑤ Prevent electric shock accidents.

On-site electricity utilization shall be installed, maintained and managed by special personnel, and it is strictly forbidden for non-electricians to dismantle and change it at will;

Do not use electric tools or equipment in wet places; Do not use electric tools or equipment in wet places;

All kinds of wire plugs and switches on site are located in the switch box, and the switch must be pulled down after power failure;

All kinds of electrical equipment must have good grounding and zero connection. Hand-held power tools used on site must have leakage protectors, and operators must wear insulating gloves and shoes.

When hoisting components, collision should be prevented, and temporary stay wires should be used to prevent electric shock;

All kinds of wires should be checked frequently, and problems should be dealt with in time;

On-site temporary power supply shall be erected according to relevant national safety regulations and relevant company regulations. Power supply should be equipped with leakage protection device, and electrical construction machinery should be grounded to zero.

Motors and equipment used for construction must be grounded, and damaged wires and cables are absolutely not allowed. Power supply should be equipped with electric shock protector.

[6] Site fire and explosion prevention

Prepare fire-fighting equipment and tools on site, and have special fire-fighting security personnel;

When acetylene and oxygen cylinders are transported on site, earthquake-proof measures should be taken. It is absolutely forbidden to throw and slam on the ground, and at the same time avoid exposure to the sun, and keep a distance of 10 meters from the fire source;

Attention should also be paid to fire prevention during construction. Acetylene and oxygen should be placed in accordance with regulations to ensure a safe distance. Flammable articles on site should not be piled up or discarded at will, but should be piled up in a safe place.

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