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Steel space grid gas station project construction

Ovaj projekat je kvadratni prostorni okvir / visina 16 metara / ukupna dužina 30 metara / ukupan raspon 18 metara

1. Montaža čeličnog prostornog okvira mora se izvršiti nakon prihvatanja donje ose konstrukcije i ugrađene ploče.Zahtjevi za donji oslonac su: visinska razlika između susjednih oslonaca (udaljenost L2): manja vrijednost L2/800 i 10mm, na istoj koti Visinska razlika između najvišeg i najnižeg oslonca: 20mm;

2. Odrediti proces ugradnje čeličnog prostornog okvira prema sili i strukturnim karakteristikama mreže i stvarnim uslovima izgradnje na gradilištu;

3. Nakon ugradnje čeličnog okvira, treba ga provjeriti:

a.Dozvoljena vrijednost odstupanja vertikalne i horizontalne dužine bočne strane je 1/2000 dužine i ne smije biti veća od 30 mm;

b.Dozvoljena vrijednost središnjeg pomaka treba biti 1/3000 raspona čeličnog okvira prostora i ne smije biti veća od 30 mm;

c.Za mrežasti okvir koji se oslanja na periferiju, dozvoljeno odstupanje visine je 1/400 susjednog nosača i ne smije biti veće od 15 mm, a maksimum i minimum ne bi trebali biti veći od 30 mm;za mrežasti okvir oslonjen na više tačaka, dozvoljeno odstupanje visine je 1/800 susjednog nosača i ne smije biti veće od 30 mm;

d.Otkrijte otklon mreže u skladu sa specifikacijama i zahtjevima dizajna.Nakon izgradnje, otklon čeličnog okvira prostora ne smije biti veći od 115% projektne proračunske vrijednosti.(Maksimalna vrijednost otklona rešetkastog okvira L/250)

4. Ako lokalno postoje kuglice za zavarivanje, za zavarivanje kugle za zavarivanje i šipke koristi se zavarivanje žljebova, a stepen zavarivanja ne bi trebao biti niži od drugog razreda.

5. Nakon završetka instalacije čeličnog okvira, površina spojeva i šipki prostornog okvira treba da bude čista i bez ožiljaka i prljavštine.Spojevi i višak rupa kugličnih zglobova vijaka treba popuniti i zapečatiti mašću.

6. Tokom upotrebe mreže, sveobuhvatno antikorozivno održavanje treba vršiti svakih 4 do 5 godina.

 

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.

Vrijeme objave: Mar-10-2022