Study On Assessment Method Of The Quality Of Building Structure Design

With the rapid advancement of urbanization,Chinese Construction Industry has developed at full speed.Because of the growing pursuit of architecture aesthetics,there are more and more high-rise buildings with increasingly complex architectural shapes which makes building structure design more difficult.Structure design is quite comprehensive which needs to consider many factors.However,interaction and mutual restriction of these factors exert an important influence on the quality of structure design.For example,structure designers need to realize the complicated architectural modeling,but also ensure the regularity and safety of the structure as far as possible;need to ensure the structure has enough stiffness but also ductility;need to achieve the economic performance of structure but also ensure the performance of safety and applicability.In recent ten years,computers have been gradually popularized and the computing performance has got a rapid development,even if a small design institute could calculate super high-rise structures.But the phenomenon of wide gap of structure design quality has not been abated.The main reason is the urgency of the design tasks and the gap of design experience and level between different structure designers which lead to designers'different choices of key factors(e.g.structure system,calculation model and parameters)during the process of structure design.And how designers cope with these key factors influences the quality of structure design.So,this paper presented a hierarchical and multi-layered evaluation method of structure design.Firstly,generalized the research status of building structure design evaluation at home and abroad,and summarized main problems of domestic researches.And introduced,then,the major content of each stage of structure design.According to the relevant rules,regulations and atlas,set up evaluation indexes and criterion in each stage through a scientific and rational method.After that,a evaluation system with the use of fuzzy hierarchy estimation was established.The purpose of this system is to find the key factors which should be improved through evaluating the structure design objectively and scientifically.Finally,proved the feasibility of the evaluation system with a engineering example.The main content is as follows:(1)Summarized the related research status at home and abroad,analyzed the main problems of evaluation of domestic building structure design,listed the reasons for the difficult promotion of structure design evaluation and discussed the significance of structure design evaluation that could improve the investment benefit of construction products.(2)Divided structure design into scheme design phase,structure calculation phase and construction drawing design,and then discussed the main features and content in each phase.(3)By the comparison of characteristics of each typical evaluation method,the fuzzy hierarchy estimation was determined as the method of structure design evaluation.According the relevant rules,regulations,atlas and the main content of each phase,set up the evaluation indexes and criterion.(4)On account of different influence degree of each evaluation index,by AHP and consulting experts,constructed the judgment matrices to calculate the weight of each evaluation index.(5)According to the different features of different stages,put forward a multi-layered and hierarchical evaluation system.Combining with a engineering example,consulted several experts to score each evaluation index,analyzed the indexes with lower score,presented corresponding improvement measures,and verified the feasibility of the evaluation system.