Performance of Steel-Bolt-Connected Industrialized Building System Frame Subjected to Hydrodynamic Force

Abstract

People need durable shelters for living safely due to devastation caused by flooding in some areas, and it is not easy to mitigate the frequency and intensity of the flooding. Therefore, in this research, an industrialized building system (IBS) has been proposed as one of the best solutions. However, most of the existing IBSs were not designed and tested for resisting a sudden horizontal impact. Furthermore, the joints of some IBSs would likely be vulnerable to failure when subjected to a horizontal impact. There is a need to develop a bolt-connected IBS that is able to withstand a horizontal impact load. Thus, this study aimed to investigate the performance of steel-bolt-connected IBS frames subjected to the sudden impact of hydrodynamic force. Autodesk computational fluid dynamic (CFD) simulation was used for optimizing the laboratory experiment. A 1:5-scale IBS frame was designed and tested for the dam-break test using 1 m, 2 m, and 3 m reservoir water levels. The results showed that the bolt connections were very effective and robust in the IBS frame. They also restricted damages from spreading to other structural components due to energy dissipation. The main findings of this study are crucial to improving the current IBS method of construction.

Computational Aerodynamic Optimization of Wind-Sensitive Irregular Tall Buildings

“…It is observed from the RBF surface that potential optimal solutions can be obtained within the blue contours, which correspond to the maximum corner curving. In contrary, the opposite region with a minimum curving radius corresponds to maximum deflection values, and this evidence is supported by the fact that chamfering corners of building geometry can reduce wind loads on a structure significantly [4,5,[45][46][47][48]. One potential optimal solution for the modified building form is shown in Figure 19, illustrating the original and the new optimal boundaries of the aerodynamic modification applied through this optimization process.…”

“…It is observed from the RBF surface that potential optimal solutions can be obtained within the blue contours, which correspond to the maximum corner curving. In contrary, the opposite region with a minimum curving radius corresponds to maximum deflection values, and this evidence is supported by the fact that chamfering corners of building geometry can reduce wind loads on a structure significantly [4,5,[45][46][47][48]. the lower and upper bounds for the design variables, respectively, ∆ , , ∆ , is the max story drift value in the y and x direction, and ∆ , , ∆ , is the allowable limit as per a given standard; in this example, the Eurocode design code standard is adopted with a limit of H/500.…”

Structural Performance of Bolted Lateral Connections in Steel Beams under Bending Using the Component-Based Finite Element Method

“…Limit states are those situations for which, if exceeded, the building may be considered as not meeting any of the structural requirements for which it was designed. In the case of the ultimate limit states, they are those that in the case of being exceeded, constitute a risk for people, because they produce the rupture of some structural elements, and with it the total or partial collapse of the building [2].…”