Research On Operational Mode Of Virtual Enterprise Of Construction Project

This paper probes the operational mode of virtual enterprise of construction project into construction, operation mechanism, decision-making mechanism and management mechanism etc, based on such theories as contract, new classical economics, core competence and modern corporation government, with game theory, analytic network process, back-propagation neural network, genetic algorithms and fuzzy math.(1) Based on the analysis of the situation of the construction industry in China and the delivery model of construction project the present day, suggest the operation model of virtual enterprise of construction project. Based on math theory, new classical economics and new institution economics, establish models to analyze the motivation of virtual enterprise of construction project. Considering development situation and environment in China, prove the feasibility of virtual enterprise of construction project using non-cooperative game model.(2) Based on reviewing concerned literatures and former research, the evaluation criteria system of partner selection and project selection is assumed, the feasibility of carrying out Back-Propagation Neural Network method and Analytic Network Process method is investigated, the two methods both embrace expert intelligence in evaluating process. Based on the idea of combining both qualitative analysis and quantitative analysis, the project evaluation model is constructed, and the candidate partners and candidate projects are systematically evaluated, and the evaluation results are consistent with the fact perfectly.(3)According to principal-agent theory, design the single task and multi-task incentive model between contractor and subcontractor. And evaluating partners` performance which can provide evidence for incentive decision and assigning profit .Considering such factors as special character of contractor and subcontractor,exogenous random variable and its influence, by comparing answers of the incentive model under symmetric information with asymmetric information, analyze the influence of these factors on the sensitiveness compensation performance, and factors to be considered while designing the incentive system are put forward. The comparative static analysis of multi-task model for the relative incentive intensity is done. The results show that the more important task suits the stronger incentive contract, the stronger incentive contract suits the more uncertain task, which is in order to distribute resources correctly, and improve the utility of the virtual enterprise of construction project. Based on reviewing concerned literatures and considering the fact of Nanjing Chixia construction Co., Ltd., the evaluation index system is assumed, the feasibility of carrying out fuzzy math method is investigated, the math models for fuzzy systematically evaluating are built, and the analytic demonstration of Nanjing Chixia construction Co., Ltd. is performed.(4)We use genetic algorithms to solve multi-project resource leveling problem in virtual enterprise of construction project. Basing on the characteristics of the virtual enterprise, we transform multi-project resource leveling problem into single-project resource leveling problem; we design a mathematic model to minimize the variance of resource consuming every day, to level the problem; we design the genetic algorithms and use MATLAB to program to get the optimal start time of every sub-project; finally, we give an application to demonstrate its effectiveness.(5)Based on the analysis of the multilevel principal-agent relationship of the virtual enterprise of construction project, conceive the conception of governance structure for virtual enterprise of construction project. Analyze the necessity of governance. According to the organization structure of virtual enterprise of construction project and the contract relationship restricting all participants, divide the governance structure into three parts. Analyze the system structure and power distribution from the three parts for governance structure for virtual enterprise of construction project, in order to benefit the virtual enterprise. Finally, we provide an analytic demonstration of Baoye group in ZheJiang province.(6)Due to the irrationality of profit allocation basing on the struggling level confirmed by the virtual enterprise only, according to the reality of the virtual enterprise of construction project, we establish the profit allocation model basing on the final values of the subproject confirmed by the virtual enterprise, owner and other participants; then, we mend the model using a bonus confirmed by the final values of the subproject finished by partners; finally, we solve the mend model using genetic algorithms, and the results prove that the mend model improve the struggling level greatly, and improve the rationality of profit allocation.