What is the function and construction of stage truss?

With the development of my country's economy, commercial performances are becoming increasingly common. Truss stages are a common and indispensable component of many of these events. Truss stages have earned widespread acclaim for their flexibility and convenience.

Truss stages are simple to construct, can be erected in a variety of terrains, and offer exceptional stability. Different types of stage trusses have distinct functions and applications. Regardless of the type of stage truss, proper and safe construction is paramount. The aluminum alloy frames commonly seen in outdoor performances are a type of stage truss, a widely used standard aluminum alloy frame. Actors, hosts, and other performers perform on this stage, which is known as a stage truss. To enhance interaction between performers and the audience, stage trusses extend the stage closer to the audience. Besides performances, truss stages can also be used for press conferences, cocktail parties, corporate celebrations, social gatherings, receptions, company annual meetings, and more. Truss stages have a wide range of applications.

From a mechanical perspective, when the truss's shape resembles the bending moment diagram of a simply supported beam, the axial forces in the upper and lower chords are evenly distributed, the axial forces in the webs are minimal, and material efficiency is minimized. From a material and manufacturing perspective, triangular shapes are preferred for wooden trusses, trapezoidal or parallel chord shapes for steel trusses, and polygonal or trapezoidal shapes for reinforced concrete and prestressed concrete trusses.

The height-to-span ratio for a truss is typically 1/12 to 1/16 for a three-dimensional truss, 1/20 to 1/30 for a three-dimensional arch, and 1/30 to 1/50 for a tensioned three-dimensional arch. Specific regulations are found in design manuals and specifications. Trusses have a wide range of applications, and the selection of a truss form should comprehensively consider the truss's application, materials, support method, and construction conditions. The optimal form is chosen to minimize the material and labor required for manufacturing and installation while meeting the application requirements.