Description
Industrialised Building System (IBS) is a unique construction technique that is being implemented in most of the construction fields all around the world. However, its implementation in Malaysia is still slow and not effective. The IBS implementation by the private sector is still deficient and the government aims it to be improved. Through the previous research of IBS, the severe damages of column bottom blocks and the connection system between blocks are found important to be improved to produce better quality of Industrialised Building Block House System (IBS-BH) components. Hence, the innovation of IBS-BH has been made by applying different configurations of lightweight material, damping system, and clamping cable connection to the column system. The main objective of this research is to investigate the seismic performance and structural behaviour of IBS BH dynamically and statically using time history test, cyclic pushover test and finite element analysis (FEA). In this research, six types of column formation blocks models and one sub-frame model were tested with time history test on shaking table to evaluate its dynamic responses. While a lightweight sub-frame model was tested to failure by cyclic pushover load test to observe its failure mechanism and to compare with original sub-frame model. All the tested models were constructed in down scaled with a ratio of 1:5. The dynamic time history test results show the column models with rubber damper system have better seismic performance in terms of acceleration and displacement response. However, the performance evaluations show that the column models with rubber damper systems were overdesigned. Since only minor concrete surface spalling was found on the tested Original Column as patented, it can be concluded that patented column is sufficiently robust, and no enhancement is needed. For sub-frame models, the dynamic performance was identified using time history test on shake table, while structural behaviour and failure mechanism of lightweight sub-frame model was successfully obtained using static cyclic pushover test. In conclusion, this research has successfully obtained the comprehensive seismic performance and structural behaviour of IBS-BH models through both laboratory tests and FEA.
