1. There is no special situation. All the monitoring pole embedded parts concrete is C25ç ¼, and the reinforced bars meet the national standard and wind requirements. The cement is No. 425 ordinary portland cement. The proportion of concrete and the minimum amount of cement shall comply with the provisions of GBJ204-83; the threading of the anchor bolts above the flange plate shall be well wrapped to prevent damage to the threads. Properly place the monitoring pole embedded parts according to the embedded parts installation diagram to ensure the extension of the boom arm.
2. The level of the concrete pouring surface based on the monitoring pole shall be less than 5mm/m to maintain the level of the embedded part of the pole. The flange of the embedded part is 20~30 mm below the surrounding ground, and then the ribs are covered with C25 fine stone to prevent water accumulation.
Folding this paragraph to avoid lightning
The monitoring rod must have a lightning rod and a good grounding. It is better to add the lead wire into the ground (it is recommended that the conductive rod does not go). The grounding resistance is less than 4 Euro. The direction and the traffic lane are vertical (or as required by the engineer). The anchor bolt is used as the main reinforcement.
Fold edit this paragraph to install
1. Hand-hole wells must be set up beside the pole, next to the control box, at the cable bends, when the straight length of the cable duct exceeds 50 meters, or when the cable ducts at both ends are not more than 100 mm apart in the same plane.
2. The internal dimensions of the hand-hole well are 500 (long) × 500 (width) × 600 (deep) MM. The gravel layer is used as the seepage; the cement mortar must be wiped on the four walls of the hand well.
3. The control box is equipped by the equipment manufacturer according to the required capacity. The outer shell is made of high-quality cold-rolled steel sheet whose wall thickness is not less than 1.2mm and sprayed with outdoor plastic powder and waterproof and heat-proof.
4. The depth of cracks, delaminations, heavy skins, slag inclusions and other defects of the structural steels that may not affect the material and mechanical properties shall not be greater than 1/2 of the negative tolerance of the steel thickness, and shall not be greater than 0.5 mm.
5. Design basis: design wind load: 23m/s2, fatigue life: 30 years, according to the latest national standard version of "carbon structural steel", "construction and acceptance specification of electrical installations for cable lines", "steel structure construction and "Acceptance specifications", "Code for Acceptance of Reinforced Concrete Works" and other relevant specifications for construction.
Fold edit this paragraph production requirements
1, in line with the provisions of the current national standards, and have qualified certification documents. Carbon steel adopts E43 welding rod. The quality of the welding rod should meet the requirements of the latest national standard. Never use welding strips, electrodes with rusted or corroded welding rods, and welding rods with rust. The welding size meets the design requirements and the welding wave on the weld metal surface is even. It must not affect the strength of cracks, slag inclusions, welding defects, burn-through, unmelted, craters, and needle-like pores, and there are no defects such as wrinkles and interruptions. The depth of bite in the weld zone must not exceed 0.5 mm, and the cumulative total length must not exceed 10% of the total length of the weld. The width of the weld is less than 20mm, the remaining height of the weld is 1.5mm~2.5mm, the fillet height of the fillet weld should be 6mm~8mm, and the fillet size must not be smaller than the design dimension.
2. Anti-corrosion treatment uses hot dip galvanized steel. Before the antiseptic treatment, the steel member shall be effectively derusted. The thickness of hot-dip zinc shall not be less than 85um. The zinc layer shall be uniform. When the copper sulphate solution is used for etching test, more than 4 times. Without exposed iron, the zinc layer should be firmly bonded to the metal body. After the hammer test, the zinc layer does not peel off and does not protrude. After the zinc dipping, passivation treatment shall be carried out and the salt spray test shall be passed for 48 hours. For every 100 m rod, the linearity error measured on its axis does not exceed 0.5 ‰, and the linear full-length error of the rod does not exceed 1 ‰.
Folding this section of embedded parts
1. The basic reinforcement cage should be temporarily fixed, and at the same time ensure that the reinforcing steel pet's basic roof plane is horizontal, that is, use the level ruler to measure in the vertical two directions of the foundation roof, and observe that the bubbles must be centered; the monitoring and pre-embedded concrete foundation must be poured. Solid, no concrete hollowing;
2. Pre-embedded nozzles shall be sealed with plastic paper or other materials in advance during construction to prevent the concrete from leaking into the buried pipe when the concrete is poured, resulting in blockage of the buried pipe; after the foundation is poured, the foundation surface must be higher than Ground level 5MM ~ 10MM; concrete must be maintained for a period of time to ensure that the concrete can reach a certain degree of installation strength.
3. Each metal pole must be grounded, and its grounding resistance is less than 4 ohms. The specific data of each pole shall be subject to on-site construction requirements.
Folding this paragraph intersection
1. Road monitoring poles generally only require the use of small-sized wells. For the convenience of equipment installation, wells should be set near the monitoring poles. When the groundwater level is not high, only the gravel (sand) cushions will be laid at the bottom of the wells so that the rainy days are in the wells. The stagnant water seeps into the ground, but underneath the wellbore there must be a concrete foundation cushion and silo powder cement mortar; when the groundwater level is high, a 10cm concrete cushion is added to the bottom of the well and the wellbore and bottom of the well are painted and waterproofed. Mortar
2, net size 500 × 500 × 600 (length × width × height), the use of Mu10 brick M5 cement mortar 240 thick masonry, cover with Φ8 @ 150 bidirectional configuration C20 ç ¼ prefabricated board thickness of 60 thick, elevation with the sidewalk or In the green belt, the surface of the board must be smooth and the hole should be raised. The cover plate should be made according to the national standard. The concrete construction data of each well is subject to the on-site construction requirements.
2. The level of the concrete pouring surface based on the monitoring pole shall be less than 5mm/m to maintain the level of the embedded part of the pole. The flange of the embedded part is 20~30 mm below the surrounding ground, and then the ribs are covered with C25 fine stone to prevent water accumulation.
Folding this paragraph to avoid lightning
The monitoring rod must have a lightning rod and a good grounding. It is better to add the lead wire into the ground (it is recommended that the conductive rod does not go). The grounding resistance is less than 4 Euro. The direction and the traffic lane are vertical (or as required by the engineer). The anchor bolt is used as the main reinforcement.
Fold edit this paragraph to install
1. Hand-hole wells must be set up beside the pole, next to the control box, at the cable bends, when the straight length of the cable duct exceeds 50 meters, or when the cable ducts at both ends are not more than 100 mm apart in the same plane.
2. The internal dimensions of the hand-hole well are 500 (long) × 500 (width) × 600 (deep) MM. The gravel layer is used as the seepage; the cement mortar must be wiped on the four walls of the hand well.
3. The control box is equipped by the equipment manufacturer according to the required capacity. The outer shell is made of high-quality cold-rolled steel sheet whose wall thickness is not less than 1.2mm and sprayed with outdoor plastic powder and waterproof and heat-proof.
4. The depth of cracks, delaminations, heavy skins, slag inclusions and other defects of the structural steels that may not affect the material and mechanical properties shall not be greater than 1/2 of the negative tolerance of the steel thickness, and shall not be greater than 0.5 mm.
5. Design basis: design wind load: 23m/s2, fatigue life: 30 years, according to the latest national standard version of "carbon structural steel", "construction and acceptance specification of electrical installations for cable lines", "steel structure construction and "Acceptance specifications", "Code for Acceptance of Reinforced Concrete Works" and other relevant specifications for construction.
Fold edit this paragraph production requirements
1, in line with the provisions of the current national standards, and have qualified certification documents. Carbon steel adopts E43 welding rod. The quality of the welding rod should meet the requirements of the latest national standard. Never use welding strips, electrodes with rusted or corroded welding rods, and welding rods with rust. The welding size meets the design requirements and the welding wave on the weld metal surface is even. It must not affect the strength of cracks, slag inclusions, welding defects, burn-through, unmelted, craters, and needle-like pores, and there are no defects such as wrinkles and interruptions. The depth of bite in the weld zone must not exceed 0.5 mm, and the cumulative total length must not exceed 10% of the total length of the weld. The width of the weld is less than 20mm, the remaining height of the weld is 1.5mm~2.5mm, the fillet height of the fillet weld should be 6mm~8mm, and the fillet size must not be smaller than the design dimension.
2. Anti-corrosion treatment uses hot dip galvanized steel. Before the antiseptic treatment, the steel member shall be effectively derusted. The thickness of hot-dip zinc shall not be less than 85um. The zinc layer shall be uniform. When the copper sulphate solution is used for etching test, more than 4 times. Without exposed iron, the zinc layer should be firmly bonded to the metal body. After the hammer test, the zinc layer does not peel off and does not protrude. After the zinc dipping, passivation treatment shall be carried out and the salt spray test shall be passed for 48 hours. For every 100 m rod, the linearity error measured on its axis does not exceed 0.5 ‰, and the linear full-length error of the rod does not exceed 1 ‰.
Folding this section of embedded parts
1. The basic reinforcement cage should be temporarily fixed, and at the same time ensure that the reinforcing steel pet's basic roof plane is horizontal, that is, use the level ruler to measure in the vertical two directions of the foundation roof, and observe that the bubbles must be centered; the monitoring and pre-embedded concrete foundation must be poured. Solid, no concrete hollowing;
2. Pre-embedded nozzles shall be sealed with plastic paper or other materials in advance during construction to prevent the concrete from leaking into the buried pipe when the concrete is poured, resulting in blockage of the buried pipe; after the foundation is poured, the foundation surface must be higher than Ground level 5MM ~ 10MM; concrete must be maintained for a period of time to ensure that the concrete can reach a certain degree of installation strength.
3. Each metal pole must be grounded, and its grounding resistance is less than 4 ohms. The specific data of each pole shall be subject to on-site construction requirements.
Folding this paragraph intersection
1. Road monitoring poles generally only require the use of small-sized wells. For the convenience of equipment installation, wells should be set near the monitoring poles. When the groundwater level is not high, only the gravel (sand) cushions will be laid at the bottom of the wells so that the rainy days are in the wells. The stagnant water seeps into the ground, but underneath the wellbore there must be a concrete foundation cushion and silo powder cement mortar; when the groundwater level is high, a 10cm concrete cushion is added to the bottom of the well and the wellbore and bottom of the well are painted and waterproofed. Mortar
2, net size 500 × 500 × 600 (length × width × height), the use of Mu10 brick M5 cement mortar 240 thick masonry, cover with Φ8 @ 150 bidirectional configuration C20 ç ¼ prefabricated board thickness of 60 thick, elevation with the sidewalk or In the green belt, the surface of the board must be smooth and the hole should be raised. The cover plate should be made according to the national standard. The concrete construction data of each well is subject to the on-site construction requirements.
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