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Steel space grid gas station project construction

Tento projekt je štvorcový priestorový rám / výška 16 metrov / celková dĺžka 30 metrov / celkové rozpätie 18 metrov

1. Montáž oceľového priestorového rámu je potrebné vykonať po prevzatí osi spodnej konštrukcie a osadenej dosky.Požiadavky na spodnú podperu sú: výškový rozdiel medzi susednými podperami (vzdialenosť L2): menšia hodnota L2/800 a 10 mm, pri rovnakej výške Výškový rozdiel medzi najvyššou a najnižšou podperou: 20 mm;

2. Určite proces inštalácie oceľového priestorového rámu podľa silových a konštrukčných charakteristík mriežky a skutočných stavebných podmienok na mieste;

3. Po inštalácii oceľového priestorového rámu je potrebné skontrolovať:

a.Prípustná hodnota odchýlky vertikálnej a horizontálnej dĺžky strany je 1/2000 dĺžky a nemala by byť väčšia ako 30 mm;

b.Prípustná hodnota odsadenia stredu by mala byť 1/3000 rozpätia oceľového priestorového rámu a nemala by byť väčšia ako 30 mm;

c.Pre sieťový rám podopretý obvodom je povolená odchýlka výšky 1/400 susednej podpery a nemala by byť väčšia ako 15 mm a maximum a minimum by nemali byť väčšie ako 30 mm;pre sieťový rám podopretý viacerými bodmi je povolená odchýlka výšky 1/800 susednej podpery a nemala by byť väčšia ako 30 mm;

d.Zistite vychýlenie mriežky podľa špecifikácií a konštrukčných požiadaviek.Po konštrukcii nesmie byť priehyb oceľového priestorového rámu väčší ako 115 % výpočtovej hodnoty návrhu.(Maximálna hodnota vychýlenia rámu mriežky L/250)

4. Ak sú lokálne zváracie gule, na zváranie zváracej gule a tyče sa používa drážkové zváranie a stupeň zvarového švu by nemal byť nižší ako druhý stupeň.

5. Po dokončení inštalácie oceľového priestorového rámu by mal byť povrch kĺbov a tyčí priestorového rámu čistý a bez jaziev a nečistôt.Spoje a prebytočné otvory guľových čapov by mali byť vyplnené a utesnené mazivom.

6. Počas používania mreže by sa mala každých 4 až 5 rokov vykonávať komplexná antikorózna údržba.

 

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.

Čas odoslania: Mar-10-2022