A BIM-Based Optimization Method of Construction Cost and Construction Duration-Cost of Prefabricated Construction Project

The invention relates to a BIM-based optimization method for the cost and construction period of prefabricated construction project, including prefabricated building valuation module and construction duration to cost optimization module. The prefabricated building valuation module includes extracting the information of model components, mapping the engineering quantity of components in accordance with the list mapping rules, and generating the engineering cost data. The construction duration to cost optimization module includes the establishment of the duration-cost function model, the optimization of the original duration-cost data by genetic algorithm, the introduction of the optimization results into BIM for collision inspection, the modification of the construction plan according to the inspection results, the cyclic optimization of the duration-cost, and the final construction plan derived after the operation of the model. The solution provided by the invention can realize the information management of prefabricated building and better carry out the project cost work and construction scheme planning. 2 1 The bill of quantities valuation module construction time-cost optimization module The time-cost function 21 11 model Extract the information 22 of prefabricated Preparation of the components construction plan The quota Map the component Genetic Algorithm optimize database o amount with the quota the original time-cost data database 24 The bill of Collision checking quantity The construction cost Reasonable 14ntrution plan 14 15/t The final construction plan