使用 RFEM 和 RSTAB 设计和计算音乐会舞台

Dlubal 软件设计和计算音乐会舞台

2015年11月9日

The structural analysis programs RFEM and RSTAB enable continuous structural planning of concert stages and supporting structures for event technology.

When entering the model, it is, for example, possible to optionally use prefabricated blocks. Furthermore, membranes can be considered in RFEM. Tools for automatic generation of wind and snow loads enable fast and easy entry of the loading.

Whether aluminum, steel or timber (or multiple materials in one structure) is used for the supporting structure, all necessary structural analyses (bearing capacity, stability, serviceability) can be performed with the corresponding add-on modules.

The governing internal forces from RFEM/RSTAB are then automatically transferred to the design modules. If the supporting structure is modified, the changed internal forces will be automatically transferred to the design modules.

Consideration of Blocks

Each structure can be modeled individually and flexibly in RFEM/RSTAB. In addition, predefined or individually created blocks can be used. Thus, it is possible to insert parametrized truss girders, support trusses or similar. The dimensions, sections, etc. can be adapted accordingly during or after inserting.

The block database of RSTAB additionally contains global truss products (spatial truss girders made of aluminum) which are frequently used for concert stage structures.

Membrane Structures in RFEM

Protection against weather conditions for concert stages is often achieved by using membranes. They can be considered in RFEM. The RF-FORM-FINDING add-on module finds the initial shape of membrane and cable constructions. The shape is found by using the equilibrium between the surface stress (prestress) and the natural and geometrical boundary reactions.

The form-finding process can be performed on the entire structure, i.e. taking into account the semi-rigidity of the supporting structure. Furthermore, using line releases in RFEM makes it possible to consider the fact that membrane surfaces rest on intermediate supports, but in case of relieving actions like wind suction they can detach from the substructure.

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