According to foreign media new atlas, bridge piers are usually formed by large-scale integral concrete structures with high strength. However, cracks may appear once an earthquake occurs. Other options have emerged recently, including building these load-bearing structures with limb inspired joints and sections, which can not only provide greater durability under seismic activity, but also be repaired cheaply if cracks begin to appear, a new study suggests. < / P > < p > the new bridge design in this study is called a hybrid sliding rocking bridge, and engineers at Texas A & M University have been studying this design as a more seismic alternative to traditional design. These piers provide the same support as typical concrete piers, but can absorb more ground vibration energy due to human limb inspired motion joints and segments. If an earthquake strikes, the segments will slide against each other rather than crack, at least that’s the idea. But there’s a lot to learn about how this works in the real world. < / P > < p > “our bridge design is relatively new, so we have very little scientific literature to refer to,” said Dr. Petros Sideris, author of the study. “So we took an unconventional approach and filled our knowledge gap by recruiting a team of experts on bridge damage and repair.” < / P > < p > the expert group carried out a series of experiments in which the mixed sliding shaking pier was subjected to the motion of simulated seismic activity. This enables them to observe the damage that has occurred and to propose a repair technique and cost estimate. Using this information, they repaired the columns and then placed them in more simulated seismicity that first destroyed them. < / P > < p > these repeated experiments enabled the team to compare the performance of restored columns with those in their original state, as well as those constructed in a traditional way. Engineers have found that the mixed sliding rocking column suffers less damage than the traditional design pier, and the overall damage is very small even when subjected to a force equivalent to a once-in-a-thousand-year earthquake. When they did, engineers found that they could be easily repaired with grout and carbon fiber. < / P > < p > “repairing bridges is a slow process that takes a lot of money and then indirectly affects the community,” says ideris. “New bridge designs may have higher initial construction costs and may be more profitable in the long run because they are stronger. The money saved can be used to help communities, not infrastructure. ” < / P > < p > the study was published in the Journal of structural engineering, and Dr. Petros Sideris gives an overview of the hybrid sliding rocking bridge in the video below. It is said that “gta5” will be launched on Google cloud game platform stadia

By ibmwl