Innovation of Prefabrication Construction Methods for Cost and Time Efficiency in The High Rise Building Project of Perum Perumnas

Abstract

Prefabrication has been widely used in construction projects. Prefabrication improves construction speed, architectural quality, material efficiency, and worker safety while limiting construction's environmental impact than conventional construction practices built on site. This research explains the advantages of prefabricated construction methods and offers an alternative method for innovation for the High Rise Building Project of Perum Perumnas. The prefabrication method is an alternative solution based on the SWOT analysis, and software for modeling and structural design is STAAD.Pro V8.I by Bentley System, inc. The research results have shown that prefabrication methods in the High Rise Building Project of Perum Perumnas can save 7% (deviation = 868.47 million) more than the current construction method (conventional). In terms of time, the prefabrication method is faster than traditional methods, with a time difference of 371 days. The estimated time required to complete upper structure work using conventional methods is 557 days. In comparison, the time needed to complete upper structure work with prefabricated methods is only 186 days, assuming the working time is eight hours per day. And the risk analysis is generally mentioned. Therefore, based on the calculation results, it can be concluded that the prefabrication method can increase the number and quality of development production in the High Rise Building Project of Perum Perumnas.

Practical Optimization of Access Road Construction Methods in Soft Soil Areas

“…In another instance, the design and construction methods of the Perum Perumnas building were optimized by substituting conventional concrete structures with prefabricated structures. The result was a 7% cost reduction compared to the original design and method (Sari & Dinata, 2022). Optimization was also implemented in the road construction, as evidenced by the STA 198-STA 216 Lueng Gayo -Arongan Lambalek road construction project in West Aceh Regency, Aceh Province.…”

Transformation of National Housing’s Layout Design in PERUMNAS Sarijadi Bandung

“…PERUMNAS Sarijadi consists of Blocks 1-18 and Blocks 23-26. PERUMNAS Sarijadi is located in two areas, namely Block 1-18 in Sarijadi sub-district, Sukasari sub-district and Block 23-26 in Sukawarna sub-district, Sukajadi sub-district [10]. PERUMNAS type 36 in the Sarijadi area is included in the Simple House type with a core plan of 3 rooms, a bathroom, and a service area.…”