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Steel space grid gas station project construction

Този проект е квадратна рамка / височина 16 метра / обща дължина 30 метра / общ обхват 18 метра

1. Монтажът на стоманената пространствена рамка трябва да се извърши след приемане на долната ос на конструкцията и вградената дъска.Изискванията за долната опора са: разликата във височината между съседни опори (разстояние L2): по-малката стойност от L2/800 и 10mm, при една и съща кота Височинна разлика между най-високата и най-ниската опора: 20mm;

2. Определете процеса на монтаж на стоманената пространствена рамка според силата и конструктивните характеристики на мрежата и действителните строителни условия на място;

3. След монтажа на стоманената рамка трябва да се провери:

а.Допустимата стойност на отклонението по дължината на вертикалната и хоризонталната страна е 1/2000 от дължината и не трябва да бъде по-голяма от 30 mm;

б.Допустимата стойност на централното изместване трябва да бъде 1/3000 от обхвата на стоманената пространствена рамка и не трябва да бъде по-голяма от 30 mm;

° С.За мрежестата рамка, поддържана от периферията, допустимото отклонение на височината е 1/400 от съседната опора и не трябва да бъде по-голямо от 15 mm, а максимумът и минимумът не трябва да са по-големи от 30 mm;за мрежестата рамка, поддържана от множество точки, допустимото отклонение на височината е 1/800 от съседната опора и не трябва да бъде по-голямо от 30 mm;

д.Открийте отклонението на решетката според спецификациите и изискванията за проектиране.След конструкцията отклонението на стоманената рамка не трябва да бъде по-голямо от 115% от проектната изчислителна стойност.(Максимална стойност на отклонение на рамката на мрежата L/250)

4. Ако локално има заваръчни топки, заваряването на заваряване се използва за заваряване на заваръчната топка и пръта, като степента на заваръчния шев не трябва да е по-ниска от втората степен.

5. След завършване на монтажа на стоманената рамка, повърхността на ставите и прътите на рамката трябва да бъде чиста и без белези и замърсявания.Фугите и излишните отвори на шарнирните съединения на болтовете трябва да бъдат запълнени и запечатани с грес.

6. По време на използване на мрежата трябва да се извършва цялостна антикорозионна поддръжка на всеки 4 до 5 години.

 

1. The installation of the grid frame must be carried out after the acceptance of the lower structure axis and the embedded board. The requirements for the lower support are: the height difference between adjacent supports (distance L2): the smaller value of L2/800 and 10mm, at the same elevation Height difference between the highest and lowest support: 20mm; 2. Determine the installation process of the grid according to the force and structural characteristics of the grid and the actual construction conditions on site; 3. After the grid frame is installed, it should be checked: a. The allowable value of the vertical and horizontal side length deviation is 1/2000 of the length, and should not be greater than 30mm; b. The allowable value of center offset should be 1/3000 of the span of the grid, and should not be greater than 30mm; c. For the mesh frame supported by the periphery, the allowable height deviation is 1/400 of the adjacent support, and should not be greater than 15mm, and the maximum and minimum should not be greater than 30mm; for the mesh frame supported by multiple points, the allowable height deviation is 1/800 of the adjacent support, and should not be greater than 30mm; d. Detect the deflection of the grid according to the specifications and design requirements. After construction, the deflection of the grid frame shall not be greater than 115% of the design calculation value. (Maximum deflection value of grid frame L/250) 4. If there are welding balls locally, groove welding is used for welding the welding ball and the rod, and the welding seam grade should not be lower than the second grade. 5. After the installation of the grid frame is completed, the surface of the joints and rods should be clean and free of scars and dirt. The joints and excess holes of the bolt ball joints should be filled and sealed with grease. 6. During the use of the grid, comprehensive anti-corrosion maintenance should be carried out every 4 to 5 years.
1. The installation of the grid frame must be carried out after the acceptance of the lower structure axis and the embedded board. The requirements for the lower support are: the height difference between adjacent supports (distance L2): the smaller value of L2/800 and 10mm, at the same elevation Height difference between the highest and lowest support: 20mm; 2. Determine the installation process of the grid according to the force and structural characteristics of the grid and the actual construction conditions on site; 3. After the grid frame is installed, it should be checked: a. The allowable value of the vertical and horizontal side length deviation is 1/2000 of the length, and should not be greater than 30mm; b. The allowable value of center offset should be 1/3000 of the span of the grid, and should not be greater than 30mm; c. For the mesh frame supported by the periphery, the allowable height deviation is 1/400 of the adjacent support, and should not be greater than 15mm, and the maximum and minimum should not be greater than 30mm; for the mesh frame supported by multiple points, the allowable height deviation is 1/800 of the adjacent support, and should not be greater than 30mm; d. Detect the deflection of the grid according to the specifications and design requirements. After construction, the deflection of the grid frame shall not be greater than 115% of the design calculation value. (Maximum deflection value of grid frame L/250) 4. If there are welding balls locally, groove welding is used for welding the welding ball and the rod, and the welding seam grade should not be lower than the second grade. 5. After the installation of the grid frame is completed, the surface of the joints and rods should be clean and free of scars and dirt. The joints and excess holes of the bolt ball joints should be filled and sealed with grease. 6. During the use of the grid, comprehensive anti-corrosion maintenance should be carried out every 4 to 5 years.
1. The installation of the grid frame must be carried out after the acceptance of the lower structure axis and the embedded board. The requirements for the lower support are: the height difference between adjacent supports (distance L2): the smaller value of L2/800 and 10mm, at the same elevation Height difference between the highest and lowest support: 20mm; 2. Determine the installation process of the grid according to the force and structural characteristics of the grid and the actual construction conditions on site; 3. After the grid frame is installed, it should be checked: a. The allowable value of the vertical and horizontal side length deviation is 1/2000 of the length, and should not be greater than 30mm; b. The allowable value of center offset should be 1/3000 of the span of the grid, and should not be greater than 30mm; c. For the mesh frame supported by the periphery, the allowable height deviation is 1/400 of the adjacent support, and should not be greater than 15mm, and the maximum and minimum should not be greater than 30mm; for the mesh frame supported by multiple points, the allowable height deviation is 1/800 of the adjacent support, and should not be greater than 30mm; d. Detect the deflection of the grid according to the specifications and design requirements. After construction, the deflection of the grid frame shall not be greater than 115% of the design calculation value. (Maximum deflection value of grid frame L/250) 4. If there are welding balls locally, groove welding is used for welding the welding ball and the rod, and the welding seam grade should not be lower than the second grade. 5. After the installation of the grid frame is completed, the surface of the joints and rods should be clean and free of scars and dirt. The joints and excess holes of the bolt ball joints should be filled and sealed with grease. 6. During the use of the grid, comprehensive anti-corrosion maintenance should be carried out every 4 to 5 years.

Време на публикация: март-10-2022