Game Cooperation Study Of Design-construction Union Under Design Alteration In Large Construction Project

With construction projects more and more complicated, many design units and construction units choose project implementation mode of combo. But practices indicate, participants often default unilaterally due to interest during cooperation. Design change occurs throughout the whole project construction.So it is difficult to control and it is complex to manage. The participating units may be prone to conflicts of interest.If they can balance the interests, the project will be implemented smoothly; if not, the participating units will lose cooperate aspiration, even eithdraw from the union, the result will influence the project implemention. It is very important to coordinate such cooperation and competition relationship between units.This article first elaborates the background of the thesis and study the subject source from the social reality. It is necessary to analyze design-construction union cooperative games in large construction projects under the design alteration,Based on the current research analysis, the contents of the article, the logical framework and research innovation are listed; secondly by introducing the theory design-construction union, the theory of large-scale construction projects, design changes theory to define design-construction union cooperative games in large construction projects under the design alteration, and explains the purpose of building the design and construction consortium partner selection hierarchy model, as well as factors that influence the design and construction consortium partner selection and explains the basic principle and the advantages and disadvantages of AHP, a clear idea of designing and building design-construction union partner selection hierarchy model, select the appropriate evaluation, build construction hierarchical model to select the best partner; then build design-construction union cooperative game model under different sources of design changes to analyze game strategy choses aboutpartner participating units, leading into excess earnings and excess earnings partition coefficient and extra benefits obtained from default and default cost. Analyzing the cooperative game strategy choice about design-construction union in order to maintain the long cooperative relations, when cooperative net profit is more than the breach of contract net income under the reasonable income’distribution,design and construction consortium choose cooperation strategy; when cooperative net profit is less than the breach of contract net income under the unreasonable income distribution, any design and construction consortium breaks the contract.combining with simulation software design unit and constructionunit of dynamic policy evolution process, give the suggestions about how to coordinatethe cooperation between design and construction consortium under design changes in order to promote the smooth implementation of large-scale construction project.Combined with South Lake Road Xiangjiang Tunnel Projects, To analyze design-construction union cooperative game model in large construction projects and the successful case is beneficial to the smooth implementation of projects under design changes, theanalysis provide for theoretical basis and protect the interests of participating units, Engineering construction target will be completed, promote the smooth implementation of the project to contribute to the construction industry of our country.