The safety problems and countermeasures in the construction of steel structure workshop are analyzed

Due to the particularity of the use function of the steel

structure workshop, the special requirements of the production process and the uniqueness of large span and high strength, a large number of steel structures need to be hoisted, welded and climbed at the construction site, which brings greater danger to the safety work of the construction personnel. So in terms of security, it has always been a top priority. The following discusses the main safety problems in the construction of steel structure workshops and the preventive measures that should be taken.

1. Management measures

1. The "Safety Production Responsibility System" and safety

management system should be established and improved, and the "Safety Management Responsibility Certificate" of managers at all levels to each employee should be signed to clarify their respective safety responsibilities.

2. We should strengthen safety knowledge training and education, establish the idea of "safety first, prevention first", and strive to improve safety awareness

3. All personnel and management personnel engaged in construction operations must strictly implement safety operation procedures.

4. Construction workers should be familiar with the safety technical operation procedures of the work, understand the responsibilities of their respective safety production positions, and conscientiously implement various safety management systems.

5. Establish and strictly implement safety inspection systems at all levels.

6. Before the construction operation, the quality and safety technology and dangerous points of the employees should be disclosed.

7. Safety inspection, construction log and other work should be done during construction work.

8. The construction site should hang conspicuous quality and safety warning signs.

2. Several safety issues and measures in the construction process

The steel structure workshop involves the use of more machinery and equipment in the whole construction process, more aerial work, more cross operations, so there will be various safety problems, which are briefly described as follows.

1. Component entry safety measures

(1) When transporting components, vehicles should be selected according to the length and weight of components.

(2) The components should be flattened with wooden blocks on the transport vehicle, the ultra-long components should be marked, and the lashing should be stable to ensure that the components are transported without deformation and do not damage the paint coating.

(3) During loading and unloading operations, it is strictly necessary to prevent the components from collapsing and falling and injuring people, and the instructions of the commander should be followed when loading and unloading goods.

(4) Proofread the relevant list of shipping components.

(5) When hoisting, the lifting tool should be firm and reliable, and all kinds of parts that are not welded firmly and not connected and fastened are not allowed to lift the operation without firm binding.

(6) To hoist loose items, it must be tied firmly and kept balanced before it can be lifted.

2. Safety measures for plant foundation engineering

(1) Make the installation template to control the spacing between individual bolts and the high and low standards within the allowable deviation range.

(2) Fix the bolt group and protect the bolt wire buckle from being damaged when the concrete is poured.

3. Measures to prevent crane tipping

(1) The road at the lifting site must be smooth and solid, and the backfill soil and soft soil layer should be treated. If the soil is soft, the road should be paved separately.

(2) Oblique hanging is prohibited. The diagonal crane can cause overload, which can lead to rope pulling and rollover accidents.

(3) The slings of the lashing components must be calculated.

(4) The lashing method should be correct and firm to prevent the sling from breaking or slipping from the component during hoisting, so that the crane is weightless and overturned.

(5) All lifting tools should be regularly inspected for safety.

(6) Strictly abide by the "ten do not hang" regulations for lifting machinery operations.

4. Measures to prevent falling from height

(1) Work at height, strictly implement the "Safety Technical Specifications for Working at Height in Building Construction".

(2) When the operator is working at height, he must set up a safety net and use the safety belt correctly.

(3) It is not allowed to climb steel columns with bare hands

(4) If workers need to work at height, they should set up a tool-type temporary operation table with a width of 0.8~1.0m.

(5) If you need to walk on the hanging roof truss, you should set a lifeline on the roof truss.

(6) The ladder used for climbing must be firm, and the rope must be used to tie the fixed component firmly when used.

(7) If the operator is walking on the roof panel, he should maintain a high concentration to prevent stepping on the headboard and falling and injuring people.

(8) When installing floor slabs or roof panels with reserved holes, safety guardrails should be set up in time.

(9) The operator shall not wear hard-soled leather shoes to climb the height.

5. Measures to prevent injuries from falling objects from height

(1) Personnel entering the construction work area must correctly standardize the wearing of safety helmets.

(2) The tools, parts, etc. used by high-altitude operators should be placed in the tool bag worn by the body, and should not be thrown down at will.

(3) When cutting in high air or electric welding, effective preventive measures should be taken to prevent sparks from falling and injuring people or fire.

(4) Ground operators should try to avoid staying or passing directly under the aerial working surface, nor should they stay or pass under the lifting arm of the crane or the components being lifted.

(5) After the component is installed, the quality of the connection must be checked, and only when the connection is confirmed to be safe and reliable, can the hook be loosened or the fixing tool removed.

(6) Temporary railings should be set up around the lifting site to prohibit non-staff from entering.

6. Measures to prevent electric shock and gas cylinder explosion

(1) For electricity use at the construction site, the "Safety Technical Specifications for Temporary Electricity Use at the Construction Site" should be strictly implemented.

(2) The temporary electricity consumption at the construction site must be operated by a professional electrician who has obtained the certificate of passing the special operation training examination.

(3) The construction power lines should all use cables with qualified quality, and the power supply should adopt a three-phase five-wire system, with a special protection zero line.

(4) The main distribution box and distribution box are equipped with rainproof covers and door locks, and corresponding leakage protectors are set.

(5) The construction wire to the floor should be casing and firmly carded.

(6) Electric machinery must be specially managed, and small hand-held power tools should be used with leakage protection gates.

(7) There should be sufficient lighting facilities for night construction.

(8) When the crane is driving from under the wire, the crane driver should pay special attention to the height of the highest point of the boom and the air height of the wire, and set up a special person to command if necessary.

(9) When carrying oxygen cylinders, shockproof measures must be taken, and they must not fall sharply to the ground; It should also not be exposed to sunlight, let alone close to the fire source.

(10) The power cord of the welding machine has broken skin, and it must be tightly bandaged with adhesive tape in time.

7. Safety and fire prevention measures

(1) Establish a leading group for safety and fire prevention and effectively do a good job in fire prevention.

(2) It is strictly forbidden to smoke at the construction site and warehouse.

(3) Flammable and explosive items such as wooden boards and paints must be stored separately in the safety storage area and set up with obvious fire prevention signs.

(4) Oxygen cylinders and acetylene cylinders should be stored at a safe distance (3-5 meters), and the barometer must be effective, should be lifted lightly, and should not be impacted and stored under high temperature and pressure.

(5) Fire fighting equipment must be complete and effectively deployed in the place where it is needed, and must be regularly inspected to ensure its normal operation.

(6) Adhere to the safety fire inspection system, find hidden dangers, eliminate them in time, and prevent fire accidents.

(7) On-site operators should consciously participate in fire safety training and correctly use fire fighting equipment.

(8) It is forbidden to carry tinder into the production and storage of flammable and explosive dangerous goods.

8. Installation safety measures for plant enclosure projects

(1) The purlin position should be reviewed before installation.

(2) Plastic steel window entry certificate, product test report and appearance inspection.

(3) The gap between the plastic steel window and the outer frame of the fixed plastic steel window should be controlled. When installing the upper and lower frames of the window, be sure to measure it with a spirit level to ensure its levelness

9. Technical measures for construction machinery safety

(1) The use of on-site machinery should strictly implement the "Safety Technical Regulations for the Use of Construction Machinery".

(2) Machinery, instruments, tools, etc. must be checked before work, and can only be used after confirming that they are in good condition.

(3) The machinery shall not be operated with disease and overloaded, and abnormal situations shall be stopped for inspection, and shall not be inspected and repaired in the operation of the machinery.

(4) Special operation personnel must undergo special training, pass the examination, and obtain the operation certificate of special operation personnel before they are allowed to carry out independent operation of this work. Non-special operation personnel are strictly prohibited from engaging in special operations.

(5) All mechanical equipment must be operated by professionals, and often check whether its safety devices are complete and effective.

In the actual construction process of steel structure plant construction, there are many potential safety hazards, and the specific measures are not the same, safety work is a major responsibility for each of our construction personnel, keep in mind the lessons of blood, work dutifully, and effectively achieve safe production, alarm bells ring.