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What are the challenges in structural design for irregularly shaped buildings?

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The structural design of non-standard geometric buildings represents the most critical and challenging aspect of their realization. The difficulties extend far beyond merely “how to make it stand,” permeating the entire process from concept development and calculations through construction and use. Below are the primary challenges in the structural design of non-standard geometric buildings, presented in order from core to derivative issues: 1. Core Mechanical Challenge: Non-Standard Load Paths In traditional buildings (such as rectangular boxes), load transfer paths are clear and direct: floor slab → beam → column → foundation → ground. Forces are primarily transmitted vertically downward. In contrast, load paths in irregularly shaped structures are often highly complex and convoluted. Challenge: Forces do not obediently travel straight downward. They “detour” through curved surfaces, diagonal bracing, and irregular grids, generating massive torsional forces, bending moments, and hor...

What are the design difficulties of steel large-span roofs?

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 The design difficulties of steel large-span roofs are mainly reflected in the following aspects: I. Structural stability and deformation control Stiffness and stability: Due to the light weight of steel structure, its stiffness is relatively small and the structure is not stable enough. In the case of large span, once the force exceeds the maximum range that the structure can bear, the steel structure may be bent, deformed, shifted, twisted, etc., which seriously affects the stability of the whole structure. Therefore, the design needs to ensure that the structure has sufficient stiffness and stability to meet the use requirements. Deformation design: In order to ensure that the structure can still maintain a good shape after being stressed, the design needs to focus on deformation design. This includes analysing the system components of the steel structure as a whole to ensure that the forces in each component meet the criteria and avoid exceeding the bearing capacity of the bar...