How to build aluminum alloy truss on stage

Aluminum alloy trusses are relatively common in modern society, but it is impossible for non-personnel to build stages with aluminum alloy trusses. In public buildings such as large-span workshops, exhibition halls, gymnasiums, and bridges, stage truss structures are rarely used. The lower chord straight rod of the stage truss is subjected to the axial force and is connected with the reaction node to form a geometrically unchanged load-bearing structure, which is located at the lower edge of the truss.

In order to expand the table and increase the cultural atmosphere, the stage can be extended from below the main stage and flattened with the main stage, so that the actors have more space to perform and get close to the audience to obtain various extraordinary effects. If not in use, the stage can be retracted into the main stage, increasing the dominant area of the stage.

Its more important significance is that the complex stress state of the actual web girder under the action of transverse bending is transformed into the simple tensile and compressive stress state of the truss member, which can intuitively understand the diffusion and transmission of the force, and facilitate the planning of changes and combinations. Whether bending or shearing, the truss structure enables the data strength to be fully interpreted and is applicable to a variety of span roof structures.

Compared with the actual web girder, the shear force of the truss girder can be slowly transferred to the supports through the reasonable arrangement of the web members in terms of shear resistance. In terms of bending resistance, since the tension and compression sections are concentrated at the concave and convex ends, the internal force arm is increased, so that the bending strength is completed with the same amount of data. The stage construction itself must take into account the traffic of the participants, as long as fast and safe passages and traffic can absorb as many spectators as possible to the presentation event.