Study On The Service Transformation Of The Old Building

The quantity of the old building in our country has reached suitable scale. Along with the urban development, the old building will be demolished or used .Regarding the large population and the deficient resources, the blind choice of demolition or the unscientific policy-making of the service transformation can create huge waste .However, at present, regardless of the fundamental research or the practices about the service transformation which overall evaluation technology, economy old building service and so on are insufficient.Introduces the domestic and foreign old building service transformation historical development and correlation theories analysis.Then, we use the pessimistic cluster method to determinate the building security secure rank which is the foundation of the choice including structure reinforcement and service transformation plan. The valuation Process is: the old building structure as cluster object , the ratio of load bearing capacity, service period, deformation and appearance, structure and connectivity, cracks as cluster target, according to the number of gray levels, judge the structural safety of old building belong to which hierarchy.Structure reinforcement is the effective method to improve the safety of old building, reduce the hidden danger of accidents, extend the life of the structure. Fuzzy comprehensive evaluation method that using the cost and construction time, construction processes, the impact of the original buildings, green materials and equipment used in the degree of construction enterprises such factors figure out the best reinforcement method.Renovation of the total decision-making is the focus of the program content .Using the old building that keep original state, old building which modified and reconstruct a new building, these schemes which can be the ultimate scheme were decided by Fuzzy comprehensive evaluation method that considering cost, life, period, safety and serviceability figure out the best reinforcement method.Then ,a case had proven that the pessimistic cluster application in the old building security appraisal and fuzzy comprehensive evaluation method that figure out the best reinforcement method and renovation program not only feasible but also simply. Finally, the author proposed some opinions about the service transformation idea, the method and the policy suggestion and so on to the old buildings.