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Steel space grid gas station project construction

Hierdie projek is 'n vierkantige ruimteraam / hoogte 16 meter / totale lengte 30 meter / totale spanwydte 18 meter

1. Die installering van die staalruimteraam moet uitgevoer word na die aanvaarding van die onderste struktuur-as en die ingebedde bord.Die vereistes vir die onderste steun is: die hoogteverskil tussen aangrensende stutte (afstand L2): die kleiner waarde van L2/800 en 10mm, op dieselfde hoogte Hoogteverskil tussen die hoogste en laagste steun: 20mm;

2. Bepaal die installasieproses van die staalruimteraam volgens die krag en strukturele eienskappe van die rooster en die werklike konstruksietoestande op die terrein;

3. Nadat die staalruimteraam geïnstalleer is, moet dit nagegaan word:

a.Die toelaatbare waarde van die vertikale en horisontale sylengte-afwyking is 1/2000 van die lengte, en moet nie groter as 30 mm wees nie;

b.Die toelaatbare waarde van middelverstelling moet 1/3000 van die span van die staalruimteraam wees, en moet nie groter as 30mm wees nie;

c.Vir die maasraam wat deur die omtrek ondersteun word, is die toelaatbare hoogte-afwyking 1/400 van die aangrensende steun, en moet nie groter as 15 mm wees nie, en die maksimum en minimum moet nie groter as 30 mm wees nie;vir die maasraam wat deur veelvuldige punte ondersteun word, is die toelaatbare hoogteafwyking 1/800 van die aangrensende steun, en moet nie groter as 30 mm wees nie;

d.Bespeur die defleksie van die rooster volgens die spesifikasies en ontwerpvereistes.Na konstruksie sal die defleksie van die staalruimteraam nie groter as 115% van die ontwerpberekeningswaarde wees nie.(Maksimum defleksiewaarde van roosterraam L/250)

4. As daar plaaslik sweisballe is, word groefsweiswerk gebruik om die sweisbal en die staaf te sweis, en die sweisnaatgraad moet nie laer as die tweede graad wees nie.

5. Nadat die installering van die staalruimteraam voltooi is, moet die oppervlak van die ruimteraamverbindings en -stawe skoon en vry van letsels en vuilheid wees.Die gewrigte en oortollige gate van die boutkogelgewrigte moet gevul en verseël word met ghries.

6. Tydens die gebruik van die rooster moet omvattende korrosie-instandhouding elke 4 tot 5 jaar uitgevoer word.

 

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.

Postyd: 10 Maart 2022