Steel structures have been widely used in construction projects due to their many advantages. However, there are some issues that cannot be ignored during the design and construction processes. Understanding and resolving these problems is of great significance for ensuring the quality, safety, and economy of steel structure projects.
In the early stage of design, some designers insufficiently analyze the functional requirements and service environment of the building, leading to inappropriate structural selection. For example, for some large-span spatial structures, choosing an unsuitable steel structure form may result in unreasonable structural stress, increased steel usage, and at the same time, affect the usable space and aesthetics of the building.
Accurately determining the load is crucial for steel structure design. However, in actual design, some designers may not consider the load calculation comprehensively. For instance, they may ignore special cases of wind loads and seismic loads, or inaccurately estimate the variable loads during the building's service life. This may lead to insufficient safety of the structure in actual use, or overly conservative design, resulting in material waste.
Joints are key parts of steel structure connections, and the rationality of their design directly affects the overall performance of the structure. Common problems include improper selection of joint forms and insufficient connection strength. For example, some welded joints do not fully consider the welding process and quality control requirements during design, which may lead to welding defects after construction, affecting the bearing capacity of the joints and thus endangering the safety of the entire structure.
Steel structures are susceptible to corrosion and fire during use. Some designers do not pay enough attention to anti-corrosion and fireproof measures during design, and fail to carry out reasonable anti-corrosion and fireproof design according to the specific environmental conditions and usage requirements of the project. This may cause the steel structure to rust in a short period of time, reducing the durability of the structure, or in the event of a fire, the structure's fire resistance is insufficient, and it quickly loses its bearing capacity.
The quality of steel used in construction is directly related to the quality of the project. Some unscrupulous merchants may provide steel with unqualified quality, such as steel whose strength, toughness and other indicators do not meet the standard requirements. If strict quality inspection is not carried out during the construction process and these unqualified steels are used in the project, it will bring serious safety hazards to the structure.
Steel structure construction has high requirements for accuracy. However, in actual construction, due to measurement errors, improper installation techniques and other reasons, problems such as component size deviation and inaccurate installation position are prone to occur. For example, excessive verticality deviation of steel columns will affect the overall stability of the structure; inaccurate docking of the connection nodes of steel beams will lead to uneven stress on the nodes, affecting the bearing capacity of the structure.
Welding is one of the main connection methods in steel structure construction, and the quality of welding is crucial to structural safety. Common welding problems include weld cracks, pores, and slag inclusions. These problems may be caused by improper selection of welding process parameters, uneven technical level of welders, and unqualified welding environment. If welding quality problems are not found and handled in time, they may gradually expand during the use of the structure, leading to serious safety accidents.
Steel structure construction is usually carried out in complex environments such as high altitudes and open air, with relatively high safety risks. Some construction units have weak safety management awareness during the construction process, and safety protection measures are not in place. For example, they do not provide construction personnel with necessary safety protection equipment or set up reasonable safety warning signs. This easily leads to safety accidents involving construction personnel, which not only affects the project progress but also brings huge losses to the lives and property of construction personnel.
Improve the professional quality and business capabilities of designers, enabling them to be familiar with various steel structure design specifications and standards, and master advanced design concepts and methods. At the same time, encourage designers to go deep into the construction site, understand the construction technology and actual situation, and improve the rationality and operability of the design.
Establish a sound construction quality management system, strengthen the inspection of steel quality, and ensure that the steel used meets the standard requirements. During the construction process, strictly control the construction accuracy, adopt advanced measuring instruments and installation techniques to ensure the installation quality of components. For welding work, formulate strict welding process regulations, strengthen the training and assessment of welders, and ensure welding quality.
Carry out anti-corrosion and fireproof construction in accordance with design requirements, and select appropriate anti-corrosion and fireproof materials and construction methods. During the construction process, ensure that the thickness and quality of the anti-corrosion and fireproof coatings meet the standards, and strengthen the quality supervision and inspection of the construction process. At the same time, regularly maintain and inspect the steel structure, and timely discover and deal with the damage of the anti-corrosion and fireproof layers.
Construction units should establish the idea of safety first, establish and improve the safety production responsibility system, strengthen safety education and training for construction personnel, and improve their safety awareness and self-protection ability. At the construction site, set up perfect safety protection facilities, strengthen safety supervision and inspection during the construction process, and timely eliminate safety hazards to ensure construction safety.
The problems existing in the design and construction of steel structures need to arouse our great attention. By strengthening the training of designers, strictly controlling construction quality, attaching importance to anti-corrosion and fireproof construction, and strengthening construction safety management, these problems can be effectively solved, the quality and safety of steel structure projects can be improved, and the healthy development of the steel structure industry can be promoted.
[[Some pictures and texts in the article are from the Internet for reference and exchange only. If there is any copyright issue, please contact us to delete them]]
Multi-high-rise Steel Structure
Industrial Plant
Steel Structure Bridge
Energy and Chemical Industry
Space Truss Pipe Truss
BIM application
prefabricated building
steel structure workshop
steel structure bridge
floor slab system
wall panel system
Scan the QR code to follow us
备案号：黔ICP备2024041737号-1 贵公网安备 Powered by ChiTong Group Backend login
Official WeChat