Airbus Chengdu Maintenance Hangar Project

The floor must carry parked aircraft and heavy equipment; ground conditions are complex and quality requirements high. Conventional saw-cut floors suffer joint-edge spalling, dust and unevenness, and repairs disrupt hangar operations.

Taiping post-tensioned integrated floor, with systematic detailed design developed through multiple technical reviews with the design institute and the general contractor; ST-NSM post-tensioning anchorage system; joint-reduced bays of about 7,000 m² with about 80% fewer saw-cut joints.

The Airbus aircraft full-lifecycle service project is located in Shuangliu District, Chengdu. Construction started in July 2022. It is Airbus's first aircraft full-lifecycle service project outside Europe, made up of an office and support area, an aircraft dismantling and maintenance area, and an aircraft parking area, including maintenance hangars, aircraft parts warehouses, an office building and supporting facilities. The project is now in operation.

The owner is Chengdu Airport Industry Investment Development Co., Ltd.; the designer is AVIC Planning and Design Institute; the general contractor is China Construction Third Engineering Bureau. BICP provided the systematic detailed design of the post-tensioned integrated floor. The Taiping post-tensioned integrated floor covers about 25,000 m², with a largest single bay of 7,000 m².

The hangar floor carries parked aircraft and heavy equipment, with heavy and varied loads. Ground conditions are complex, and technical and quality requirements are high. Conventional saw-cut floors have many joints that suffer edge spalling, dust and unevenness, and later repairs disrupt hangar operations.

• Taiping post-tensioned integrated floor, with systematic detailed design developed through multiple technical reviews with AVIC Planning and Design Institute and the general contractor.
• ST-NSM post-tensioning anchorage system for integrated floors, developed by BICP's subsidiary Shente Materials.
• Joint-reduced post-tensioned floor bays of about 7,000 m², with about 80% fewer saw-cut joints.

The floor design was reviewed and approved by the Airbus expert delegation from Europe. The post-tensioned integrated floor improves overload and recovery capacity, reduces cracking, improves durability and lowers operating and maintenance costs.

A reference for hangars, heavy-duty industrial buildings and other large, heavily loaded floors where continuous use matters.

The floor design was approved by the Airbus expert delegation from Europe, and the project is in operation. Higher overload and recovery capacity, less cracking and lower maintenance costs make it a reference for large hangar and heavy-duty industrial floors.