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What are the methods of strengthening steel structures?

When the steel structure is reinforced, the most suitable method needs to be selected according to different conditions. Only in this way can the actual effect of economy and safety be obtained. Today, let’s introduce the reinforcement methods of steel structure buildings. 1. Replacement concrete reinforcement method: The replacement concrete reinforcement method of the steel structure building reinforcement project is to replace the high compressive strength and good ductility concrete raw materials for the original building's low compressive strength and poor ductility prefabricated component raw materials, which can relatively improve the overall compressive strength of the building Strength, bending stiffness and load-bearing capacity. Application field: Reinforce the part of the structure where the strength of the concrete in the stress area of the load prefabricated component is slightly lower or has more serious shortcomings. The advantages of this method are: the processing technology is simple, the space occupied is small, and the project cost is lower; the disadvantage of this method is the longer processing time.   2. Enlarged cross-section structure reinforcement method: According to the specific conditions of the original building structure and support, add another layer of cast-in-situ concrete structure in the stressed area or the tension area. Suitable for structural reinforcement of beams, slabs, columns, walls and general structures of concrete. The advantages of this method are mainly manifested in: simple construction, wide application range, and strong versatility; defects mainly manifested in: long construction time, long maintenance cycle time, and cross-sectional expansion have a certain impact on the appearance of the structure.   3. Additional prestressed steel reinforcement structure reinforcement method: Use high-toughness building steel or channel steel to add pre-stressed steel support rods or support rods to the prefabricated components of the reinforced structure. After the release of the pre-stressed steel bars, it can make the structure embrittlement, the changes in the application of new projects, and other differences. The disaster or the occurrence of accidents has created a good market prospect for the building reinforcement project. Because the outer support rods and the enclosed parts support each other, they get rid of the pre-stress condition of the enclosed prefabricated parts, and the original cross-section support characteristics are changed to improve the structure. The bearing capacity and bending stiffness of the management system after reinforcement.

2022

12/29

How to do the details of steel structure construction?

Steel structure construction must first find a good manufacturer when carrying out steel structure construction. After all, there are many issues that need to be dealt with in detail in the construction of these steel structures, and the quality of steel components is also very important. The light steel structure is mainly an H-shaped solid web beam-column structure, so the surface treatment and coating process is relatively simple, and it is also relatively easy to realize mechanized flow operation. The surface treatment adopts shot blasting technology, raceway type or suspended feeding method. Painting is usually operated manually, but also can be suspended shot blasting or semi-mechanical assembly line operation. The surface treatment before painting is very important to the anti-corrosion effect of the part primer, and the thickness and uniformity of the paint film will directly affect the anti-corrosion performance of the part. In these seemingly detailed processes, each of our construction personnel must be careful. You must pay attention to these details, perhaps it is this point that determines everything.   What are the conditions for steel structure construction? 1. The height of the anchor bolts is different, and the plane of the column foot cannot be measured in advance. During the pre-embedding, the plane of the column foot will be moved to form the deviation of the column. It should be measured and buried. 2. The operation of the steel column violated the operation regulations. The steel columns were erected one after another, and it was impossible to form a stable frame unit on the same day. When the wind comes, it will collapse. Such safety accidents have occurred many times, so they must be avoided during the construction of steel structures. After installing the steel column and beam, the verticality of the steel column and the height difference gasket should be adjusted as soon as possible, and then the column foot should be closed and the secondary grouting should be carried out. 3. The steel components are not randomly installed in accordance with the construction sequence. The installation of the components should be carried out strictly in accordance with the sequence of the installation process, and a stable frame unit should be formed on the same day.

2022

12/29

Advantages of glass curtain wall

The glass curtain wall is a new type of contemporary wall. The biggest feature it gives to the building is to organically unify the architectural aesthetics, architectural functions, building energy efficiency and building structure. The building presents different tones from different angles, which follow the sunlight. The change of moon, moonlight and lighting gives people a dynamic beauty. There are magnificent and magnificent glass curtain walls in major cities on all continents, such as the New York World Trade Center, Chicago Petroleum Building, and Sears Tower. The Bank of China Tower in Hong Kong, the Great Wall Hotel in Beijing and the Shanghai Lianyi Building have also been adopted. The reflective insulating glass is 6mm thick, and the wall weight is about 50kg/㎡. It has the advantages of light and beautiful, not easy to pollute, and energy saving. The inner side of the outer glass of the curtain wall is coated with a colorful metal coating. From the appearance, the entire outer wall looks like a mirror, reflecting the sky and the surrounding environment. When the light changes, the image is colorful and endless. Under the reflection of light, the room is not exposed to strong light, and the vision is soft. China first adopted it in the Beijing Great Wall Hotel project in 1983. People who have been to New York, USA will be impressed by its prosperous city style. The towering skyscrapers are magnificent, and the whole glass curtain wall sets off the clear blue sky and dancing white clouds, adding even more Brilliant colors. So, how is the glass curtain wall made? The glass curtain wall refers to the mirror glass used as the decoration of the exterior wall of the building. It is made by adding traces of Fe, Ni, Co, Se, etc. to the float glass composition, and is tempered into color transparent plate glass, which can absorb infrared rays and reduce The solar radiation entering the room reduces the indoor temperature. It not only reflects light like a mirror, but also transmits light like glass.

2022

12/16

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