Research On Construction Project Cost Control Based On BIM Technology

In recent years,with the needs of the "Belt and Road",the Yangtze River Economic Belt and the coordinated development of Beijing,Tianjin and Hebei,the development prospects of construction industry are bright in China.Many construction projects require a lot of capital investment.The idea of "public-private partnership" has become an effective way to solve this problem.The PPP model has been produced and well popularized.The PPP model has now been applied to many construction projects such as infrastructures,technological transformation and investment in fixed assets.Construction enterprises have become the major components of social capital involved in PPP projects.PPP projects have many characteristics such as large number of participants,high investment costs and long construction period in the construction process.Especially for PPP projects where construction companies are the main investment entities,compared with general construction projects,construction companies participate in project investment decisions and programs.The life-cycle development process of design,construction,and completion acceptance is more risky and complex than that of other participants.Therefore,risk control has become one of the bottleneck problems in construction company PPP project risk management.For PPP projects,only the major risk factors can be identified to provide corresponding control measures.Therefore,risk identification and risk assessment in the risk management process are most important.Based on this,the paper takes the construction enterprise as the main body and builds a hypothetical model of policy risk,market risk,operational risk,financial risk,and development risk impact on PPP project risk on the basis of research on domestic and international PPP project risk issues;The way to collect data,using the structural equation model to analyze the impact of PPP project risk factors and mechanisms.The results show that PPP project risk is directly affected by policy risk,market risk,operational risk,financial risk,and development risk.The degree of impact from big to small is market risk> financial risk> policy risk> operational risk> development risk.Subsequently,the paper substituted the case of the PPP project of the Qingdao Citizen Health Center to analyze the risk factors and control of the project.Finally,combining the research results and case analysis,this paper proposes the risk control suggestions for PPP projects of construction companies.The research results have certain application value for the identification and control of risk factors in PPP projects.