Ordinary Portland Cement (OPC) used in building structures has a negative impact. The presence of CO2 emissions produced becomes very dangerous. To reduce this impact, materials that are more environmentally friendly are used. Silica Fume and liquid carbon dioxide (CO2) are among them. In this study, silica fume and liquid carbon dioxide were used as a substitute for cement. The effect of the stiffness of the two materials and the earthquake lateral load was tested by looking at the response of the high-rise building. Through numerical simulations, we compare the mode shape, displacement of the structure, and the sheer force experienced by the structure.

. The use of Ordinary Portland Cement (OPC) for building structures should be reduced because it can produce harmful CO2 emissions. The use of environmentally friendly materials could be the solution. Liquid carbon dioxide (CO2) is one of these material innovations. In this study, the liquid carbon dioxide was used as a substitute for OPC. The use of this material will affect the rigidity of the multi-story building structure. The effect of the stiffness variable value is tested by looking at the response of multy storey buildings during an earthquake. By using the finite difference method, the response of the multi-story building structure is analyzed through mode shape, structural displacement, and shear force.