Aluminum Roof Tent Stage Truss Solution: Engineering a 40 × 21.5 m

Retractable Roof Over a Macau Tennis Court

Direct answer. An aluminum roof tent stage truss is a modular, demountable aluminium space-truss frame that carries a tent membrane — often an electrically retractable roof — over an outdoor stage, court or event venue. For a 40 m × 21.5 m tennis court in Macau with an 11.5 m ridge height, JIANGSU SHIZHAN GROUP CO., LTD. delivered an 18-column gable truss roof whose worst load case reached only 47 MPa of bending stress against a 200 MPa allowable, with 25 mm lateral deflection against a 40 mm limit. In other words, the structure passed its wind-resistance verification using 23.5% of its allowable stress and 62.5% of its allowable deflection.

This case study documents the three decisions that made that result possible: material selection (6061-T6), finite element stress analysis, and wind-load / anchorage verification. Every number below comes from the project's own calculation report and production order — no rounded marketing figures.

Key results at a glance

What is an aluminum roof tent stage truss?

An aluminum roof tent stage truss is a load-bearing frame built from welded aluminium tube trusses that are pinned together on site, then capped with a fabric or membrane roof. It is used where a permanent building is not possible or not economic: tennis and padel courts, hotel courtyards, exhibition plazas, and outdoor stages.

Three characteristics separate it from a steel structure:

Weight.

1. Aluminium is roughly one-third the density of steel, so an 11.5 m column can be raised with a small crew and a mobile lift rather than a crane.

Modularity.

2. Trusses are produced in 1–5 m sections and joined with pin connections, so a 40 m span is a logistics decision rather than a fabrication decision.

Demountability.

3. The system is designed as a

temporary demountable structure

, which is what allows it to be installed over an operating court and removed or reconfigured later.

The trade-off is stiffness, which is exactly why the truss geometry and alloy selection in the next two sections matter.

Project at a glance

What ships: bill of materials for an 18-column roof tent truss system

Factory practice at Shizhan Group worth noting: one full span is trial-assembled at the factory before shipment, so fit-up problems are found in the workshop rather than on the client's court. Order to delivery on this project was 19 days (29 May to 17 June 2026).

Comparison: which material and truss type for a roof tent stage truss?

For a Macau installation — humid, coastal, Category A ground roughness — aluminium won on two counts simultaneously: no corrosion maintenance cycle, and no crane access requirement on an operating tennis court.