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RUSS frame

Truss frame: plane or space frame structure, usually a square column, can be used for hanging, temporary tents, outdoor speakers and background frame structure. Also known as truss. 
 
Base is composed of triangular elements of plane or space structure. Under the load, axial tension and pressure under the action of the main truss, make full use of the strength of the engineering materials when the span is more than plain girder save material and reduce weight and improve the rigidity, so is suitable for large span, bearing structure and tall structures according to the structure size can be used in the roof, Bridges, transmission tower, satellite tower, door, cranes, etc. 
 
TRUSS frame is introduced 
 
Truss (truss) : common steel truss, reinforced concrete truss, prestressed concrete truss, steel and wood, wood truss composite truss, steel and concrete composite truss. Truss is divided into a triangle truss, trapezoid truss, polygon truss, parallel chord truss, and vierendeel truss. When choosing truss form, should consider the use of truss support and construction conditions, materials, and meet the requirements under the premise of strive to manufacture and installation materials and labor used in the least. 
 
The classification of the TRUSS frame 
 
In the node load is uniformly distributed along the span, the axial force on the lower chord at the endpoint is the largest, gradually reduce the cross section; Axial force and relative CHS. Triangle truss chord due to the internal differences, material consumption is not reasonable, for the roof tile. Compared with the triangle truss, the force of the artifacts has improved, but also for the roof can more easily satisfy some industrial workshop process requirement. On the lower chord trapezoid truss for parallel parallel chord truss, the component stress trapezoidal is a bit poor, but the type of CHS is greatly reduced, for Bridges and piers. 
 
Polygon truss, also called mansard truss. Nodes in the two parabolic, such as bending of arch winding can reduce internode load is more complex, but manufacturing. In uniform load and bending moment diagram and truss girder and similar chord axial force distribution, the lower abdomen of axial force, materials, etc., are commonly used in construction of truss form. 
 
Take the basic truss and truss polygon shape, winding line between nodes, not only to the diagonal braces, vertical and upper and lower chord connection. Pole distribution of axial force and polygon truss are similar, but under asymmetric load rod bending moment is bigger. The advantages of the utility model is a node point, construction is convenient. 
 
1, the strongest a truss, reusable, the only disadvantage is that the transportation cost is higher. Products are divided into tube and pipe. 
 
2, the biggest drawback is transportation cost is low, poor repeatability. Products are divided into tube and pipe. 
 
3, the type of truss is one of the most artistic, strange shapes, beautiful. 
 

Section 4, ball truss: also called ball rack, beautiful appearance, good robustness, is the highest cost of a truss. 


------Archled Technology Co.,Limited


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