Research On Evaluation Methods Of Housing Construction Economic System In Village And Town

Housings in village and town are the buildings for farmers'living and working. The construction of housings in village and town is in low level and repetitive in China because of backward in technologies and concepts, which wastes a lot of money and has bad impact on our resources and environment, and leads to complicit of economic and social sustainable development. Housing construction economic system in village and town is an organic entity which focuses on economic factors related to all types of construction and activities in the life cycle of housings in village and town, and covers society, technology, resource, environment and other fields. It has important theoretic value and practical significance for sustainable construction of housings in village and town and rational use of building resources to research on housing construction economic system in village and town and the evaluation methods.The economic factor is one of the most important factors that people should consider in choosing housing construction scheme. It becomes an important subject that how to use scientific economic evaluation method to guide housings construction in village and town in new rural construction, and it is the new development field of traditional construction economic. As the development of environmental economics and residential sociology, it becomes necessary to bring environmental and social factors into the scope of economic evaluation of housing construction. Theory of life cycle and cost-benefit analysis provide methods and ideas for the evaluation of housing construction economic system in village and town.Based on system theory, the thesis focuses on evaluation methods of housing construction economic system in village and town, establishes housing construction economic system in village and town, and proposes calculation models of costs and benefits of housing construction economic system in village and town, establishes economic evaluation model about life cycle of housings in village and town, discusses optimization evaluation method of housing construction in village and town. Finally the thesis has an empirical research on housing construction economic system in Yanhe Village.The contents of the thesis are arranged as follows:(1) Features analysis and establishment of housing construction economic system in village and townThe thesis analyzes the features and the 3D structure of housing construction economic system in village and town, and divides the housing construction economic system in village and town into three subsystems including the internal economic subsystem, external economic subsystem and the surporting adjustment subsystem, and analyzes the definition and composition of subsystems. The overall evaluation framework of housing construction economic system in village and town is constructed eventually, and the relevance between each part is discussed.(2) Evaluation on the cost and benefits of housing construction economic system in village and townThis thesis analyses properties and constitution of cost and benefit of the internal economic subsystem, external economic subsystem and surporting adjustment subsystem respectively and establishes the calculation model. The thesis mainly discusses the calculation of greening benefits and carbon reduction benefits and constructs the calculation model of CO2 emission in each stage of life cycle of housings in village and town.(3) Economic evaluation on the lifespan of housings in village and townThe thesis analyses the reasons of the short life of housings in village and town, and discusses the concepts and influence factors of durability and transformation of housing in village and town. The thesis establishes discriminant for the reconstruction and renewal decisions of housings in village and town. Compared to reconstruction of house in village and town, the benefits of transformation are analyzed. The thesis proposes the formula of economic evaluation on the lifespan of housings in village and town.(4) Establishment of optimization assessment model of housings construction project in village and town based on sustainable development The thesis analyses the related indexes of optimization assessment of housings construction project in village and town, and draws a flow chart to choose rural housing programs and the other flow chart to make economic analysis. The benefit-cost ratio formula of housings construction project in village and town is constructed from different aspects based on cost and benefit analysis and lifespan economic evaluation. The evaluation indicators of green degree and social contribution degree of housings in village and town are constructed, and the concept and calculation formula of comprehensive performance cost are proposed. Then green degree and social contribution degree are calculated with comprehensive evaluation method based on Rough Set. The thesis puts forward the concept of the degree of economic sustainable development of housings construction in village and town.(5) Case study on evaluation of housing construction economic system in Yanhe VillageA typical peasant house of Yanhe Village in Gucheng County is chosen as an example, this thesis calculates and evaluates the life cycle economic performance by comprehensive application of the methods and models, and verifies the correctness and operability of assessment methods and models. Finally some suggestions to optimize the housings construction in village and town are established.