ABSTRACT

Noise barrier tunnels (NBTs) are road facilities installed to reduce road traffic noise. Although building information modeling (BIM) has been widely used in civil engineering, alignment problems must first be addressed for BIM to be applied in transportation infrastructure; this is because unlike buildings, roads are linear. The array of tunnel frames based on the centerlines of individual roads cause the discontinuity of components at junctions of two NBTs. This leads to structural instabilities and poor airtightness, which in turn cause vulnerabilities such as noise and water leakage. To address these issues, this study proposes an optimization design method for NBT junctions using quad meshes. We created a Y-branch topology of NBTs using quad meshes, performed data arrangement using mesh segmentation and mesh reorder, and used the results to optimize the design via performance analysis. During mesh segmentation and mesh reorder, an interface in which the user directly enters curves to improve the efficiency of the algorithm was also developed. In addition, a case study of a main road with eight lanes that merged with a sub road with one lane was conducted, data arrangement was performed successfully, and a BIM-compliant model that used various geometric data was generated through optimization.

摘要

隔音屏障隧道 (NBT) 是为减少道路交通噪音而安装的道路设施。虽然建筑信息模型（BIM）已广泛应用于土木工程，但要在交通基础设施中应用BIM，首先必须解决对齐问题；这是因为与建筑物不同，道路是线性的。基于单个道路中心线的隧道框架阵列导致两个 NBT 交界处的组件不连续。这导致结构不稳定和气密性差，进而导致噪音和漏水等漏洞。为了解决这些问题，本研究提出了一种使用四边形网格的 NBT 结的优化设计方法。我们使用四边网格创建了 NBT 的 Y 分支拓扑，使用网格分割和网格重新排序执行数据排列，并使用结果通过性能分析优化设计。在网格分割和网格重排序过程中，还开发了用户直接输入曲线以提高算法效率的界面。此外，以8车道主路与1车道子路合并为例进行了案例研究，数据整理成功，并通过优化生成了使用各种几何数据的BIM兼容模型。