基于系统动力学的建设项目工期控制模型研究

Research on the schedule control model of construction project based on system dynamics

首先分析了建设项目工期的影响因素,确定工期控制系统界限.基于理论研究与实践之间的差异,做出模型的相关假设,构建了包括施工过程子系统、控制目标子系统、资源管理子系统、工程表现子系统四个子系统模型的建设项目工期控制模型,并对每个子系统模型进行了深入的分析.最后以西安北客站为例进行实证分析,分别对项目工期、成本、累计返工工程量进行仿真,研究结果表明所建立的建设项目工期控制模型对项目运行模拟后拟合程度比较高,能较好的反映项目实际进展状况.

. Firstly the influence factors of the construction project schedule is analyzed, and then the limit for a project control system is determined. Based on the difference between the theory and practice, the assumptions of the model is made, the construction project schedule control model, including the four subsystems of construction process, control target, resource management, project performance is constructed, and the model of each subsystem is analyzed. Finally the project schedule, cost, cumulative rework quantity of the xi’an north railway station as an example is simulated respectively. The result shows that the fitting degree of the established construction project schedule control model is higher, which can better reflect the actual project progress.