Design and construction of long-span single-layer dome structures by direct analysis
| Autor: | Y P Liu, Simon W K Leung, Siu Lai Chan, S J Pan |
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| Rok vydání: | 2018 |
| Předmět: |
Long span
business.industry Computer science General Engineering 020101 civil engineering 02 engineering and technology Structural engineering 0201 civil engineering Cost savings Dome (geology) 020303 mechanical engineering & transports 0203 mechanical engineering Buckling Key (cryptography) Support system business Direct analysis Single layer |
| Zdroj: | HKIE Transactions. 25:29-43 |
| ISSN: | 2326-3733 1023-697X |
| DOI: | 10.1080/1023697x.2017.1409663 |
| Popis: | Long-span roofs are widely used worldwide as they provide large internal spaces without obstructions like columns. In designing long-span roofs, the traditional design method faces many difficulties, such as uncertainty in buckling effective length. The advanced second-order direct analysis (SODA) method for design shows and has many advantages for structural safety and cost saving. In this paper, the SODA considering P-Δ and P-δ effects as well as initial imperfections is proposed for designing of long-span roofs and the assumption of effective length is no longer required. The application of this concept of SODA to the design of practical structures appears to be new and unique, especially on the aspects of design at the construction stages. Key considerations for the construction of long-span structures by SODA are first reported. The planning of the lifting procedure, temporary support system (TSS) and off-loading sequences for load transfer from a TSS to permanent structure is guided by SODA ... |
| Databáze: | OpenAIRE |
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