Where is the Weifang TV broadcast audio receiving tower?

The TV tower currently in use is the one on the roof of Weifang TV Station, with a height of 118.6 meters.

TV towers are mainly used for radio and television transmission and transmission. In order to make the broadcasting range larger, the TV transmitting antenna must be higher. In this way, the TV tower is built higher and higher, and finally becomes the tallest modern building. To spread television to every household, the TV tower is generally located within the urban area. It often becomes the tallest building in the city and the highest point in the city. Its appearance is varied, making it a symbol of the city. A scenic spot.

The facade outline of radio and television towers usually adopts a polygonal shape, which is not only beautiful but also reduces the stress on the foundation and improves the stability of the entire tower. Plane cross-sectional shapes include triangle, quadrilateral, hexagon, etc. Polygonal mesh structures can be used in special cases. The shapes of the web poles of radio and television towers include single inclined pole type, cross type, diamond shape, K type and subdivided type. Single inclined web pole is used on small radio and television towers. Generally it is a rigid inclined rod. Cross-type web rods are widely used, and diagonal rods can be made into two types: rigid and flexible. Flexibility can be divided into prestressed and non-prestressed.

The radio and television tower is equipped with platforms for crafts, viewing and other purposes. Its level, number and layout height must be determined according to the usage requirements. The shape of the platform depends on the cross-section of the tower body. The components of the platform structure are generally made of angle steel, channel steel, I-beam and other section steels. In order to facilitate high-altitude installation, the components are first welded to form hoisting units, and each unit is connected with Bolted connections.

Features of the TV tower:

The components of the tower are connected by bolts, and all tower components are hot-dip galvanized and anti-corrosion treated after processing. The angle steel tower is composed of tower boots, tower body, lightning tower, lightning rod, platform, ladder, antenna bracket, feeder frame and lightning protection down conductor.

TV tower types: angle steel, round steel, steel pipe.

Height: 30 meters-200 meters

Materials are divided into: angle steel assembly tower, steel pipe assembly tower, tapered tube tower

TV towers are classified according to structure: < /p>

Four-column angle steel tower (self-standing or cable-stayed), four-column steel pipe tower (self-standing or cable-stayed), three-column steel pipe tower (self-standing or cable-stayed).

Burying of the lightning protection grounding device of the TV tower:

(1) Bury the grounding body according to the design requirements, and weld the lead wires between the grounding bodies. The grounding body should be buried around the tower foundation. Generally, it is necessary to bury more than 28 50×50×5mm angle steel grounding bodies about 1.5 meters long, and connect them with 40×4mm flat steel grounding body connecting lines. If the grounding body connecting lines encounter tie beams, they should be connected from them. Pass below. The grounding body should be buried to a depth of not less than 0.7 meters from the ground. In cold areas, it should be buried below the frozen soil layer and should be avoided in highly corrosive areas.

(2) Grounding body angle steel Both the flat steel and the connecting material must be hot-dip galvanized and should be the same as the steel tower, which is Q235 steel.

(3) The steel bars in the foundation piles can also be used as part of the grounding body and connected to the grounding lead-in wires. 2 grounding lead-in wires should be reserved next to each tower base, and 3 should be reserved at the feeder grounding point. A grounding lead-in wire (usually near the feeder window in the computer room) is convenient for use and detection. The grounding lead-in wire should be connected from the middle of the grounding device. Multiple grounding lead-in wires should not be connected at the same contact point, but should be staggered from each other.

(4) When the supervisor inspects the laying of the grounding device, it is required that: the welding seal between the grounding body and the connecting wire must be complete and full, with no obvious pores, and the bolts must be tightly connected to prevent loosening. measures.