Industrialized building system (IBS) is a construction term of Products, elements, or building system. In addition to capacity and behaviour of post tension system by bolts for the column to beam connection under cyclic lateral loads. A six cycle of a push over tests was carry out on a scaled model of 1:5 two-story one-bay specimen frame, four post-tensioned (PT) precast columns and two precast concrete beams components are fabricated. The main objectives of this study were to study the lateral strength of IBS assembled by using a post tensioned bars. It also examine the mechanism failure of the IBS post tension structures at various performance levels along the regime of lateral loads. The results of experimental work, at every cycle of loading are recorded the sway of IBS frame and found cracks or crushing of IBS components. The test was extended to the level of robustness of the system. During investigation, it was found that the maximum sway under cyclic lateral loading must align with the lateral stability and ductility. On the other hand the connection behavior indicated from the experimental give a merits to the post-tensioned IBS system under cyclic lateral loads. It capable to produce a more useful energy dissipation mechanism without the excess of residual displacements.
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