(1) pre-schedule control include: steel structure engineering controls to determine the construction schedule of work content and features, control methods and specific measures to achieve the objective analysis of the progress of risk presented problems to be solved; in accordance with the contract period, the construction schedule objectives and project staging production requirements of the construction preparation work and the timing of the construction tasks to determine the interface between the various units of construction engineering, engineering jobs and full-site engineering; the use of water construction principle, segmental construction of scientific organizations to achieve three-dimensional and assembly-line plane, while the application of network planning techniques, the preparation of the implementation of the local network plan, according to a key line of work to achieve continuity and balance construction; construction works in the project schedule as the basis of the total annual projects, identified steel the image of progress and structural engineering resources required (including manpower, material resources, materials, equipment and funds, etc.) supply plan.
(2) the matter of schedule control include: the establishment of the progress of implementation of the system construction steel structure engineering controls; timely construction progress inspection, make a record, keep abreast of the progress of the implementation of dynamic; the progress of data collection and statistical collation, and with compared schedule, which found that if there is progress and the progress of the deviation predicted feasible modifications measures; readjust schedules and related plans and implementation; enhance on-site construction management and scheduling, timely prevention and treatment occur in construction technical issues, quality incidents and accidents, reduce the impact of these issues on the schedule.
(3) after the schedule control include: the timely acceptance of tissue engineering, process engineering claims, project progress data compilation, classification, cataloging and archiving and so on.