## 4 Conclusions  
Computational fluid dynamic (CFD) simulation software was used to predict the optimized design, performance, and behavior of the 1:5 downscaled IBS frame model before manufacturing it in the laboratory and transferring it to the testing place. A two-dimensional bolt-connected IBS frame model was successfully simulated using Autodesk CFD for investigating the behavior of steel-bolt-connected IBS structural models to optimize the experimental dam-break test. In this CFD analysis, an examination of fluid flow's physical properties, such as velocity and pressure, was conducted to investigate the performance of the 2D frame. After the simulation, velocity and pressure results were obtained from the contour and the graph for the IBS frame. Both the graph and the contour provide very good results which were very close to each other (graph and contour). This showed a very good agreement between both results. The results of the CFD simulations were compared to the experimental results, which showed some differences. Velocities from the CFD were higher than the experimental velocities, which were calculated using the Bernoulli equation, whereas the experimental result of pressure was higher than the CFD results for pressure from both the graph and the contour. Based on the major findings of this research, several conclusion points were drawn as follows:  
* Based on the literature reviews, it was found that there are several parts of blood-prone zone structures which include commercial buildings, residential buildings, and schools, which have been destroyed during flooding events. Those structures mostly comprised conventional building systems. Hence, it is important to consider other building systems, which can limit costs, speed up the building process, and reduce the construction risk, while being robust and durable. * The experimental dam-break tests of the IBS frame showed that the steel bolt connection had very good strength. * This model recorded the highest hydrodynamic force of 62.3 kN, and the structure neither failed nor showed signs of being broken in the bolt after the test. Hence, the bolt has met our expectations, and it can be practically used in real structural connections due to its ability to resist high-impact pressure, mainly because of its strength and ductility performance. * This steel-bolt-connected IBS satisfied the mentioned qualities. This 1:5 downscaled IBS frame resisted the maximum horizontal force of 62.3 kN, showing its capability to perform well in an earthquake zone, satisfying the seismic design. * The steel-bolt-connected IBS frame was designed to resist the high-impact hydrodynamic force; therefore, the implementation of this innovated steel-bolt-connected IBS in flood-prone zones will be feasible and helpful for both inhabitants and their governments. The CFD simulation predicted the experimental dam-break test properly and it also provided a very good guideline for the experimental work. However, only the experimental results represented the real behavior of the model under the laboratory test. The CFD simulation was made before the experimental work, and it successfully helped in carrying out the experimental work. Advantages of this proposed steel bolt connection over conventional construction methods and other IBS methods include the following: steel bolt connection stops failure or cracks spreading from one component to another due to energy dissipation; the failure of one component will not cause a complete collapse of the building; it provides additional strength and ductile behavior for the structures; it would make structures more reliable throughout their lifespans compared with conventional methods of construction. Conceptualization, A.S.A., N.M.N., M.S.A.S. and S.U. ; data curation, A.S.A., N.M.N., M.S.A.S., S.U., M.A. ([PERSON]), M.A. ([PERSON]), N.I.V. and R.F. ; formal analysis, A.S.A., N.M.N., M.S.A.S., S.U., M.A. ([PERSON]), M.A. ([PERSON]), N.I.V. and R.F. ; funding acquisition, N.I.V. ; investigation, A.S.A., M.S.A.S. and M.A.