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Selection and Application of Structural Steel Materials for Aircraft Maintenance Hangars​

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 Aircraft maintenance hangars , as the core facilities for aircraft inspection and repair operations, must endure long-term exposure to large-span loads, extreme weather conditions, and complex operational environments. Consequently, stringent requirements are imposed on the strength, weather resistance, and stability of the structural steel materials employed. The judicious selection of suitable steel structural materials not only ensures the hangar's safe operation but also reduces construction and maintenance costs. Based on the functional requirements of different structural components within the hangar, commonly used steel structural materials can be categorised into three main types, each playing a critical role in hangar construction. I. Primary Load-Bearing Structure: The Core Material Supporting the Hangar's ‘Skeleton’ The primary load-bearing structure forms the hangar's ‘skeleton’, bearing the hangar's own weight, aircraft parking loads, and external forces s...

Why is steel construction the preferred choice for large-span spatial structures?

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When gazing upon grand stadiums , airport terminals, or exhibition centers, we are often awestruck by their vast spaces. Behind such large-span structures lies a nearly universal choice—steel construction. This is no coincidence, but stems from steel's unparalleled engineering advantages. stadium High Strength, Lightweight: Pushing Boundaries Beyond Limits The core advantage of steel lies in its perfect blend of exceptional strength and lightweight properties. Compared to concrete, steel boasts an outstanding strength-to-weight ratio. This means that for buildings requiring vast column-free spaces, steel structures can achieve greater spans with smaller member cross-sections, significantly reducing the building's self-weight. Consequently, foundation requirements are lowered, enabling the ultimate liberation of space in a cost-effective manner. Exceptional Performance, Conquering Complex Challenges Steel's outstanding toughness and ductility enable it to better withstand dy...

Nodal treatment of roof waterproof construction for large-span buildings

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  1, Deformation joints: large-span building roof due to temperature changes, structural deformation and other factors will produce deformation joints. The waterproof construction at the deformation joints should be able to adapt to the deformation of the roof. General use of flexible waterproof construction, such as in the deformation joints filled with polystyrene foam and other thermal insulation materials, and then paste the waterproofing roll-roofing material on both sides, the coil should be used in the empty pavement method or point bonding method, leaving enough space for expansion and contraction, and then in the coil surface to install a metal or plastic cover, to play a protective and decorative role. 2, Light windows and roof junction processing: in some large-span building roof will be set on the light windows, this part is the key node of waterproofing. First of all, we must ensure that the light window and roof structure is firmly connected, and then at the juncti...