Parametric Structural System Modelling for Flood Resilience Architecture in South Kalimantan

Abstract

Indonesia is highly susceptible to natural disasters, particularly floods. This research focuses on South Kalimantan, a region unexpectedly affected by severe flooding, which endangered vital peatland. The study aims to develop a flood-resilient construction system tailored to local conditions. A rapid assembly construction system for peatland environments was proposed, leveraging modern technologies for sustainable post-flood housing solutions. The research was conducted using a quasi-experimental method, where the intervention group utilized a parametric structural system and the control group employed a traditional structural system. The methodology involved blending conventional sub-structures, such as the Kacapuri foundation, with advanced lightweight technologies for the upper structure. Soil tests were performed to assess the bearing capacity and characteristics of the peatland, which informed the design of both the sub-lower and upper structure simulations. The study also tested three different upper structure profiles—conventional curves, polygonal profiles, and isocurve profiles—to optimize the structural design. Furthermore, an adaptive and responsive rapid assembly method was implemented and customized to on-site requirements, with a focus on parametric design and digital fabrication. Tools such as Rhinoceros 3D, Grasshopper, and Karamba facilitated the simulation and fabrication of the structures. A prototype was subsequently developed and evaluated, demonstrating significant reductions in dead loads and enhanced cost efficiency compared to conventional methods. The prototype also indicated improved land support capacity, signifying a step forward in sustainable post-disaster housing. This research underscores the importance of integrating modern construction technologies to address the post-flood housing crisis in South Kalimantan’s peatlands. The results demonstrated that adopting innovative construction methodologies can provide efficient, effective, and sustainable solutions to mitigate flood-induced displacement, thus contributing to the resilience and sustainability of disaster-prone regions. The role of advanced structural modeling in enhancing flood resilience was affirmed, offering insights into addressing similar challenges in vulnerable ecosystems globally.