Transmart Cilegon is one of the largest shopping centers in Cilegon. It consist 4 stories of reinforced concrete. Stories divided in two types function, shopping center on the lower floor and playground such as roller coaster and game center on 4th floor. The structural design of the upper floor must be checked against vibrations resulting from the roller coaster moving loads. The vibration must meet its requirements in order not to damage the structure itself.

The mass of the roller coaster is defined as the mass of the structure in seismic loads. Ensuring that the column joints at that floor not failed subject to shear which brittle. This is a challenge for engineers because the working load is a dynamic load.