Installation production procedure is the final step in the entire Design - Production - Installation process. This step is also the step that decides whether the project is guaranteed to achieve the highest efficiency or not. Together Hai Long Construction Learn about detailed installation principles and processes in the following article.
1. Principles for erecting steel structures
- Proceed to erect columns combined with wall purlins (if any), then install a bracing system to tie the columns together. The columns must be aligned correctly before erecting the truss can begin.
- Depending on the structural erection method, install the truss frame from the inside and install it outside the truss frame (in the direction of movement of the crane).
- The erection process must start from the house with column and roof bracing (also known as wind bracing).
- It is necessary to fix the erection frame in the wind bracing position before proceeding with the step of erecting the adjacent frame. This process will be repeated for subsequent frames.
- Temporary bracing during the erection of steel structures is required. Wall purlins and roof purlins are linked with tie cables to position and connect the trusses together.
- Before starting to erect the corrugated iron, it is necessary to align the truss frame, align the purlins and clean them, then repaint over the scratches.
- It is necessary to regularly stretch the rope or use chalk to mark and determine the locations of landmarks for the purpose of aligning the corrugated iron panels at the stage of completing the cover.
- When workers walk on the roof, be careful to only step on the sound waves (also known as lower waves), avoid stepping directly on the positive waves (also known as high waves) to limit crushing, dents or damage. corrugated iron.
- Absolutely do not move in places with light roofing.
2. Erection process of steel structures and pre-engineered steel buildings
- Step 1: Prepare for installation
Construction materials and equipment are two key factors that determine the quality of the project. As long as there is a problem in one of these two factors, such as low quality, insufficient quantity, not ensuring safety and not consistent with the requirements of the structural drawings, etc., the installation process will begin. Construction will be delayed, leading to a decrease in the quality of the project. Therefore, in this step, the construction unit needs to pay attention and check the quantity and requirements of materials and equipment.
- Step 2: Install columns & trusses
Columns are factors that affect the bearing capacity of steel structures. The rafter has the function of supporting and connecting the roof with the remaining parts, helping to firmly fix the roof, while also increasing the aesthetics of the house. Installation must be carried out in accordance with technical requirements for erection and production.
- Step 3: Install purlins & bracing
Based on the designed location and quantity, install all purlins and rafter braces. Then proceed to align the position of the rafter beams.
- Step 4: Calibrate the first house frame
This is the stage where components are placed in precise positions and calibrated to ensure the safety, accuracy and stability of the entire construction project.
- Step 5: Install the next compartments and complete the remaining compartments
After completing the alignment and installation of the first pavilion frame, the next step is to install the remaining pavilion frames to complete the main structure of the project.
- Step 6: Install the air cover
This step ensures that the project will not be affected by environmental and weather impacts. Performing this step requires care, precision and the use of appropriate materials to ensure the stability and safety of the steel structure.
- Step 7: Check for completeness before proceeding with the cover
This step ensures that the steel structure has been properly made and is ready for the final covering and finishing stages. Errors in steel structure erection can lead to affected construction quality.
- Step 8: Install the cover and complete
This is the final stage in the process of erecting the steel structure of a construction project. In this step, covers such as air flaps, exterior panels, insulation systems, finishing materials and other components will be installed to protect and create the final beauty of the building or structure. .
3. Necessary construction equipment
3.1. Mobile machinery equipment
- Mobile machinery equipment includes truck cranes, delivery trucks, hoists, etc.
- Only inspected mobile machinery and skilled operators are allowed on the construction site.
- All electrical wires must be fenced or flagged at locations where mobile machinery is at risk of contact with electricity. In addition, it is necessary to disconnect electrical wires that may cause accidents, or take safety measures before carrying out any construction activities.
- All types of equipment are not allowed to operate directly on the power cord.
- Absolutely do not operate machinery less than 220m from a power source over 4,5 Volt.
- Avoid moving near or directly under an object being lifted. Every heavy object being hoisted must have a rope (also called a tagline) to steer the object.
- Must clearly determine the position of the crane as well as the location to lower the crane in the construction site before hoisting anything. It is mandatory to ensure labor safety and analyze possible risks (according to Labor Safety Procedures in Construction Site Installation).
- At all stages of construction, it is necessary to limit damage to the painted finish of the structure. It can be overcome by using nylon straps or slings combined with protective cushions in places in direct contact with steel structures. Alternatively, you can use shackles to pierce the bolt holes for lifting.
3.2. Hoisting ropes and slings
- A thorough inspection of the slings and hoisting ropes is mandatory. Any damaged cables or slings should be cut off and destroyed immediately.
- During the hoisting process, limit the arbitrary use of hoisting ropes. Be sure to protect the crane rope by padding places with sharp corners. Do not allow sudden jerks when hoisting, sudden jerks will increase the load by 3 times compared to normal, extremely dangerous for the crane rope. When not in use, the crane rope should be neatly tied up. Absolutely do not let the crane rope become overloaded.
3.3. Construction scaffolding
- There needs to be a plan to use and install construction scaffolding appropriately. Avoid affecting the movement of the crane, do not obstruct the reach of the boom arm, and do not cause difficulty in erection operations.
- Always place scaffolding on hard ground, otherwise it must be lined with boards with a minimum size of 200 x 200 mm. Individual scaffoldings must be securely attached to a fixed structure, with a clearance of at least 1,5m. Each upper level of scaffolding needs to be tightly tied to the lower level with steel wire or scaffolding pipes to ensure safety.
3.4. Hand tools
- All hand tools need to have a lanyard to prevent them from falling during construction.
- Equipment must be used for its intended purpose. Absolutely do not use handheld devices to do tasks other than the intended purpose. Avoid using temporary replacement devices.
- Do not use tools that are damaged, machinery or equipment with frayed windings, technical errors or no protective covers.
4. Conclusion
Above is information about the steel structure erection process and some related information. During the erection process, construction units need to strictly comply with standards and labor safety procedures to bring about solid, modern steel structures.
If customers are looking for comprehensive solutions for steel structures, please contact Hai Long Construction via email. info@hailongjsc.vn or phone number 084 6625 888 for advice today.
