The technical parameters of the steel block and the use of the analytical steel block, also known as the steel protective layer block, are made of a special steel block machine. See the figure below for the specific drawings.
![Reinforcing block]()
![Reinforcing block]()
After several years of actual use, the Lianke reinforcing steel block proved that the quality is fully qualified.
The steel protective layer pad is placed in the brick-concrete structure and placed under the beam to expand the bearing area, which is a common method for solving local pressure. The thickness of the concrete protective layer of the steel bar is related to the bearing capacity, durability, fire resistance and the like of the structure.
Reinforced protective layer spacer effect and impact analysis
1. Reinforced protective layer pad maintenance structure Durability The protective layer in concrete is too thin to easily infiltrate into humid gas and water. If it is too thick, cracks are likely to occur. These may cause the steel to rust and expand, thus causing damage to the concrete, affecting the use and structure. Safety.
2. Under the external force, the protective layer has anchoring force to the steel bar, and the anchoring force between the concrete and the steel bar is utilized, and the two are closely combined to participate in the work. When the protective layer is too thin or missing, its anchoring force is reduced to reduce the structure's resistance to axial forces and bending moments.
3, from the normal section bending capacity calculation formula M ≤ al fcbx (h0 - x /2) + fy 'AS ' (ho--a s ') - (σpO '-fpy') A p ' (ho-- a p') It can be seen that when the gluten protective layer is too thick, the effective height h0 of the section is reduced, the bending capacity of the section is reduced. It can be seen that the thickness of the protective layer is an important factor affecting the structural bearing capacity.
4. The fire protection layer concrete has a certain heat insulation effect. When it encounters fire, it can protect the steel bars which are easy to soften. If the thickness of the protective layer is too thin, it will be easily cracked under high temperature environment, causing the steel bars to reduce strength and damage due to overheating. the whole frame. In a project in Hengyang, Hunan, the high temperature and high heat generated by the burning of the fire caused the steel bar to soften and collapse, causing major casualties.
Therefore, the control of the thickness of the protective layer in the current quality acceptance work is getting more and more attention. The new specification stipulates that physical inspection should be carried out during the acceptance process.
For details of the equipment, please consult the special network of the pad machine: http://
Http://news.chinawj.com.cn
Submission:
After several years of actual use, the Lianke reinforcing steel block proved that the quality is fully qualified.
The steel protective layer pad is placed in the brick-concrete structure and placed under the beam to expand the bearing area, which is a common method for solving local pressure. The thickness of the concrete protective layer of the steel bar is related to the bearing capacity, durability, fire resistance and the like of the structure.
Reinforced protective layer spacer effect and impact analysis
1. Reinforced protective layer pad maintenance structure Durability The protective layer in concrete is too thin to easily infiltrate into humid gas and water. If it is too thick, cracks are likely to occur. These may cause the steel to rust and expand, thus causing damage to the concrete, affecting the use and structure. Safety.
2. Under the external force, the protective layer has anchoring force to the steel bar, and the anchoring force between the concrete and the steel bar is utilized, and the two are closely combined to participate in the work. When the protective layer is too thin or missing, its anchoring force is reduced to reduce the structure's resistance to axial forces and bending moments.
3, from the normal section bending capacity calculation formula M ≤ al fcbx (h0 - x /2) + fy 'AS ' (ho--a s ') - (σpO '-fpy') A p ' (ho-- a p') It can be seen that when the gluten protective layer is too thick, the effective height h0 of the section is reduced, the bending capacity of the section is reduced. It can be seen that the thickness of the protective layer is an important factor affecting the structural bearing capacity.
4. The fire protection layer concrete has a certain heat insulation effect. When it encounters fire, it can protect the steel bars which are easy to soften. If the thickness of the protective layer is too thin, it will be easily cracked under high temperature environment, causing the steel bars to reduce strength and damage due to overheating. the whole frame. In a project in Hengyang, Hunan, the high temperature and high heat generated by the burning of the fire caused the steel bar to soften and collapse, causing major casualties.
Therefore, the control of the thickness of the protective layer in the current quality acceptance work is getting more and more attention. The new specification stipulates that physical inspection should be carried out during the acceptance process.
For details of the equipment, please consult the special network of the pad machine: http://
Http://news.chinawj.com.cn
Submission:
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