During the design, production, installation and use process, if not properly controlled, steel structures may have some quality problems, affecting the safety and service life of the structure. We will introduce common quality problems in steel structures and their preventive measures to help you better understand and deal with these challenges.
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Problems: steel strength does not meet the standard, chemical composition is not qualified, surface defects (such as cracks, rust), etc.
Reason: material procurement is not standardized, supplier quality control is not strict, or steel is not selected according to design requirements.
Problems: Weak welds, pores, slag inclusions, cracks, incomplete penetration or weld nodules, etc.
Reason: welding process is not standardized, welder technology is not up to standard, or welding environment (such as humidity, temperature) is not suitable.
Problems: large component installation deviation, loose bolt connection, node misalignment, etc.
Reason: inaccurate construction measurement, non-standard installation process, or construction is not carried out according to design drawings.
Problems: the anti-corrosion coating on the surface of the steel structure falls off, the thickness is insufficient, or the fire-retardant coating does not meet the fire resistance requirements.
Cause: The anti-corrosion and fireproofing process is not standardized, the material quality is not up to standard, or the construction environment does not meet the standards.
Problem: The steel structure is deformed by bending, twisting, etc. during transportation, installation or use.
Cause: Insufficient design strength of components, improper transportation or hoisting, or excessive external load.
Problem: Bolts are loose, fall off, or high-strength bolts do not meet the preload requirements.
Cause: Unqualified bolt quality, non-standard installation process, or failure to perform tightening inspection as required.
Problem: Fatigue cracks occur in steel structures under long-term cyclic loads.
Cause: Fatigue strength is not fully considered in the design, or the load exceeds the design range during use.
Problem: Unreasonable structural design leads to stress concentration, insufficient stability or uneven load distribution.
Cause: Design calculation errors, failure to fully consider actual use conditions, or lax implementation of design specifications.
Problem: Steel structures are prone to rust in humid and corrosive environments, or lose strength at high temperatures.
Cause: No effective anti-corrosion measures were taken, or steel suitable for environmental conditions was not selected.
Problem: Lax quality control during construction leads to accumulation of quality problems.
Cause: Irregular construction management and lack of effective quality supervision and testing mechanisms.
The quality of steel structure is the core of building safety and durability. To guarantee that every project attains the highest standards, we rigorously oversee every stage, from material selection to the completion of construction. The following are the key measures we take in actual work:
Steel grade: We select steel grades that meet the design requirements, such as Fe 415, Fe 500, etc., to ensure that the strength and performance of the steel can meet the project requirements.
Specifications and performance: All types, specifications and performance of steel strictly comply with national standards to ensure the consistency of materials.
Surface inspection: Before the material enters the site, we will carefully check the surface of the steel to ensure that there are no defects such as cracks, slag inclusions, and delamination to avoid affecting the overall quality due to material problems.
Drawing review: Before construction, our technical team will conduct a detailed review of the design drawings to ensure that they meet national standards and project requirements.
Technical disclosure: Before construction, we will fully communicate with the design team and the construction team to clarify the technical requirements and ensure that every link can be executed as planned.
Welding process: We strictly follow the BS EN ISO standard to ensure that every weld meets the highest quality requirements.
Welder qualifications: All welders hold valid qualification certificates to ensure the professionalism and reliability of welding operations.
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Connection quality: We use high-strength bolts and ordinary bolts, and check the connection quality through hole trimming equipment to ensure that each connection point is firm and reliable.
Anti-corrosion coating: We sandblast the steel surface to ensure that the coating adheres firmly and the anti-corrosion effect is optimal.
Fire-proof coating: According to the design requirements, we apply fire-proof coating in layers to ensure that the fire resistance limit of the steel structure meets the standard and provide additional safety for the building.
Installation process: From the installation of foundation anchor bolts to the hoisting of steel columns and steel beams, we strictly follow the specifications to ensure that every step is accurate and correct.
Calibration and adjustment: We use a level and theodolite to calibrate the verticality and horizontality of the steel structure to ensure the overall stability of the building.
Material Certificates: We keep detailed records of the quality certification documents for each batch of steel, bolts, coatings and other materials to ensure that every piece of material is well documented.
Inspection Reports: We provide complete inspection reports, including welding inspections, coating inspections, installation inspections, etc., to ensure that every link is strictly checked.
Before leaving the factory, we ensure that
When customers receive steel structure products, quality inspection is an important part of ensuring that the products meet the requirements and safety standards. Here are some basic steps that customers can follow to check the quality of steel structures by themselves:
Use a tape measure or laser rangefinder to check whether the dimensions of each steel structure component meet the design requirements. Including length, width, thickness, etc.
Require suppliers to provide material inspection reports, including the chemical composition and mechanical properties of steel. Confirm that the quality of steel meets relevant standards.
According to the environment (such as humidity, large temperature difference, strong corrosion, etc.), check the adaptability of the steel structure and whether materials or protective measures suitable for the environment are used.
Attention!
When customers receive steel structure products, they must complete the inspection within a short period of time so as to find problems in time and communicate with the supplier to solve them. For important or complex structures, you can consider having a professional third-party agency conduct inspections to ensure that the product quality meets the relevant building standards and safety requirements.
Want to ensure your steel structure will stand the test of time? We combine expert design, precision manufacturing, and rigorous quality inspections to ensure that the structure is not only safe but also durable.
Whether you are planning a new project or upgrading an existing one, our experienced team will provide you with a custom solution to meet your unique needs. Contact us today to discuss your project and get a custom quote – we will ensure your steel structure is in perfect condition from start to finish!
So you’re in the market for a steel building? Congratulations! Steel buildings are an excellent choice for a variety of structures, from storage sheds to garages to barns and more. But with so many options on the market, it can be tough to know where to start when it comes to choosing the right one for your needs.
Here are 10 things to look for when buying a steel building:
The first thing you’ll need to consider is the size of the steel building you need. How much space do you have available, and what will you be using the building for? Be sure to choose a size that’s appropriate for your needs.
There are many different styles of steel buildings, ranging from the more traditional barn style to modern, contemporary designs. Think about what kind of look you want for your new building and choose a style that complements it.
As with any type of construction, durability is key when it comes to steel buildings. Choose a material that’s strong enough to withstand whatever you’re planning on putting in the structure and ensure that it will last for years to come.
Depending on the company you choose, the cost of the materials can be just one aspect of the total cost of installing a steel building on your property. You’ll also need to take into account things like labour costs and permits; be sure you have a complete picture of how much your building will cost before you proceed.
Another thing to consider is how easy it will be to install the steel building on your property. Many steel buildings come with a kit that makes assembly quick and simple, but some are more difficult than others.
While reading reviews for a particular manufacturer’s products is always helpful, nothing beats hearing from people who have actually used their products and had good experiences with them first hand. Ask around and see what kind of feedback other buyers have had about the manufacturer’s steel buildings, as well as whether or not their customer service is helpful and responsive when needed.
Steel buildings are durable, but even the best ones will eventually show signs of wear over time. Make sure the building you choose comes with a good warranty that will cover any repairs or replacements you need to have made as a result of normal use. This can help protect your investment in case anything goes wrong after installation.
Depending on what the building will be used for, you may want to make sure it’s fire-resistant. Check with your local laws and ordinances regarding this, as well as how easy modifications can be made if needed to meet all requirements.
If you’re planning on using the steel building for a long period (or even permanently), you may eventually outgrow it or need to add on additional features over time. Make sure that the building is designed with these kinds of changes in mind, so that making them won’t require completely starting from scratch. This can end up costing less overall than buying an entirely new structure later on down the road.
Finally, take into account the local climate conditions where the steel building will be installed. If you’re in an area with a lot of rainfall or high winds, for example, make sure the building is designed to withstand these kinds of conditions without sustaining any damage. This will help ensure it lasts for as long as possible and doesn’t need repairs or replacements more often than necessary.
Keep these things in mind when shopping for a steel building and you’ll be sure to choose one that’s right for your needs. With so many options on the market, taking the time to find the perfect one will be well worth it in the end.
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