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Tej yaam num

Nyob zoo, tuaj nrog peb cov khoom!
Steel space grid gas station project construction

Qhov project no yog ib qhov chaw square / qhov siab 16 meters / tag nrho ntev 30 meters / tag nrho ncua 18 meters

1. Lub installation ntawm steel qhov chaw thav duab yuav tsum tau nqa tawm tom qab qhov kev lees txais ntawm cov qauv qis axis thiab cov embedded board.Cov kev xav tau rau kev txhawb nqa qis dua yog: qhov siab sib txawv ntawm cov kev txhawb nqa uas nyob ib sab (nruab nrab L2): tus nqi me me ntawm L2/800 thiab 10mm, nyob rau tib qhov siab Qhov siab qhov sib txawv ntawm qhov siab tshaj plaws thiab qis tshaj kev txhawb nqa: 20mm;

2. Txiav txim siab cov txheej txheem kev teeb tsa ntawm cov hlau qhov chaw thav duab raws li lub zog thiab cov yam ntxwv ntawm cov kab sib chaws thiab cov kev tsim kho tiag tiag ntawm qhov chaw;

3. Tom qab steel qhov chaw ncej yog ntsia, nws yuav tsum tau xyuas:

a.Tus nqi tso cai ntawm txoj kab ntsug thiab kab rov tav qhov sib txawv ntawm qhov ntev yog 1/2000 ntawm qhov ntev, thiab yuav tsum tsis txhob siab tshaj 30mm;

b.Tus nqi tso cai ntawm qhov chaw offset yuav tsum yog 1/3000 ntawm qhov ntev ntawm qhov chaw steel ncej, thiab yuav tsum tsis txhob siab tshaj 30mm;

c.Rau lub mesh thav duab txhawb nqa los ntawm periphery, qhov tso cai qhov siab sib txawv yog 1/400 ntawm qhov kev txhawb nqa uas nyob ib sab, thiab yuav tsum tsis txhob siab tshaj 15mm, thiab qhov siab tshaj plaws thiab qhov tsawg kawg nkaus yuav tsum tsis txhob siab tshaj 30mm;rau lub mesh thav duab txhawb nqa los ntawm ntau cov ntsiab lus, qhov tso cai qhov siab sib txawv yog 1/800 ntawm qhov kev txhawb nqa uas nyob ib sab, thiab yuav tsum tsis txhob siab dua 30mm;

d.Tshawb xyuas qhov deflection ntawm daim phiaj raws li cov lus qhia tshwj xeeb thiab cov qauv tsim.Tom qab kev tsim kho, qhov deflection ntawm steel qhov chaw thav duab yuav tsum tsis txhob ntau tshaj 115% ntawm tus nqi tsim qauv.(Qhov siab tshaj plaws deflection tus nqi ntawm daim phiaj kab L / 250)

4. Yog tias muaj cov khoom siv vuam hauv zos, groove welding yog siv rau vuam cov vuam pob thiab tus pas nrig, thiab qib vuam seam yuav tsum tsis txhob qis dua qib thib ob.

5. Tom qab kev teeb tsa ntawm qhov chaw steel ncej tiav, qhov chaw ntawm qhov chaw ncej pob qij txha thiab cov pas nrig yuav tsum huv thiab tsis muaj qhov caws pliav thiab av.Cov pob qij txha thiab qhov ntau dhau ntawm cov pob qij txha pob qij txha yuav tsum tau ntim thiab ntim nrog roj.

6. Thaum siv cov kab sib chaws, kev saib xyuas kev tiv thaiv zoo yuav tsum tau nqa tawm txhua 4 mus rau 5 xyoos.

 

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.
Lub sij hawm xa tuaj: Mar-10-2022
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