New research examines Modular Volumetric Applications for regions of high seismicity

Research conducted by Alessandro Marzucchini, Associate in Ramboll’s Buildings team, in collaboration with Monash University, Malaysia and Alda Consultants has given greater insight into the application of the Candle-Loc inter-module connection for high-rise modular buildings in high seismic zones.

The research aimed to investigate the structural performance of the Candle-Loc Inter-Module connection in terms of strength and ductility when used in high-rise modular buildings under seismic action.

Alessandro Marzucchini said: “Research on the seismic response of high-rise modular buildings has been limited to date. This study provides valuable insight into the area, promoting discussions, collaborations, and development in our built environment community. High-rise buildings are an essential typology for urbanisation. Modular construction will provide sustainable solutions, time, and cost-savings in response to the increasing demand for off-site construction in some of the most seismically active regions globally, including Asia Pacific and the Middle East.”

Alessandro was invited to present the findings at the International Conference on Advances in Modular Construction Engineering (ICAMCE) in Singapore in September 2023 where he discussed the Behaviour and Design of the Candle-Loc Inter-Module Connection in High-Rise Modular Buildings under Seismic Action.

The paper was selected for the conference by the World Academy of Science, Engineering and Technology (WASET), an open science research organisation dedicated to promoting the advancement of science, engineering, and technology.

About Candle-Loc system

The Candle-Loc system is an inter-module connection solution developed and patented for steel and reinforced concrete modular buildings up to 40 storeys tall. The Candle-Loc consists of only four components (tension pin, interlocking plate, top and bottom corner casts), which are designed for fast assembly, enhanced safety, standardised connections, and interoperability with various modular systems without any concrete grouting between modules. Workers safely positioned on the top of the modules apply torque to the Candle-Loc pin to connect the modules, eliminating the need to enter the units or utilise external scaffolding.

Current applications include high-rise modular buildings in Singapore, Malaysia, and Hong Kong.