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| Contrast of Partial Coefficient Design Method and Design Method Based on Reliability Index |
| WEI Yong-xing1, LUO Yi-nong1, LIU Chang-qing2 |
1. China Railway Eryuan Engineering Group Co. Ltd, Chengdu, Sichuan 610031, China;
2. Southwest Jiaotong University, Chengdu, Sichuan 610031, China |
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Abstract Research purposes:By contrast of concept, process, and examples of the partial coefficient design method and the design method based on reliability index, this paper has revealed the essence of the two kinds of design methods, namely for the design method based on reliability index, the concept of probability is directly introduced into design and for the design method of partial coefficient, the probability thought is reflected in the middle of the design, and has analyzed their common and obvious differences, which will provide the guidance for engineering design and research personnel to reasonably choose design method according to the actual situation.Research conclusions:(1) The partial coefficient design method, relatively simple, safe, suitable for conventional design, is a practical design method. (2) Reliable indicator design method, which can give attention to both safety and economy, the design process is complex, suitable for special design, is the ideal design way and the method of scientific research. (3) For the retaining structure engineering design, the partial coefficient method can be adopted. (4) The research conclusion has guiding significance for engineering design and research personnel to choose the retaining structure design method.
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Received: 16 May 2014
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2014, Vol. 31 
