Abstract
Development in Indonesia is experiencing a rapid increase, a lot of vacant land is used by investors to construct buildings. The implementation of the construction must pay attention to the project schedule, work delays often occur. The factors that cause work delays are usually from weather disturbances, delivery and supplies of materials and tools that are not in accordance with the plan, changes in design and other external, internal factors. For this reason, this study will discuss about controlling project time using the critical chain project management (CCPM) method and 4D building information modeling in high-rise residential building projects, especially in 5-layer basement work. The critical chain project management method eliminates safe time and replaces buffer time. Adding buffer time using the cut and paste method, namely adding a project buffer half the duration of the critical chain (critical chain) at the end of the chain and placing the feeding buffer with half the activity duration to activities on the non-critical chain. Delays in the construction of a 5-layer basement usually include changes in the level of soil surface conditions, the stability of the excavated soil during the secant pile excavation period as a retaining wall as deep as -17,350 m below the ground level. The results of this study can optimize the duration of the implementation with the final completion time of the structural work faster than 432 working days to 293 work days of implementation so that the time efficiency is 32,17%.
Highlights
Referring to the data released by the skyscrapper Center in 2020, during the period 1960 to 2020 is an increase in the construction of buildings with a height of over 150 meters so rapidly throughout the world
The increase in high-rise residential buildings or high rise buildings according to the global competitiveness report data from 2014 - 2020 will be the largest growth country in the construction sector with an average total growth value of 6.3% so that engineers - architecture carry out and make project management engineering from the initial project phase to the project completion phase and the increasing complexity of the problems in the planning process to the management of high-rise residential buildings
Estimated Growth of the Construction Sector 3 Countries in Asia for the period 2014 - 2020[1]. This project must pay attention to the factors that inhibit the occurrence of delays with a high risk of special attention to keep buildings and infrastructure around the project environment from being damaged due to the cause and effect of construction implementation such as environmental damage, changes in ground level conditions and stability
Summary
Referring to the data released by the skyscrapper Center in 2020, during the period 1960 to 2020 is an increase in the construction of buildings with a height of over 150 meters so rapidly throughout the world. The excavated soil during the excavation period is secant pile as a retaining wall as deep as - 17,350 (minus) meters below the ground level, to anticipate this delay the researchers used critical chain project management and building information modeling methods to control the project time. This research will analyze cost efficiency, quality and time using the method of critical chain project management and BIM in the construction of high-rise building basement. This journal will reduce work delays in the field.
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