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首页> 外文期刊>Journal of Constructional Steel Research >Static strength of doubler plate reinforced CHS X-joints loaded by in-plane bending
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Static strength of doubler plate reinforced CHS X-joints loaded by in-plane bending

机译：面内弯曲加载的双层板增强CHS X接头的静强度

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摘要

In offshore platforms, doubler plates are used to facilitate field installation of auxiliary structural components to the main structure. Recent research on the static strength of axially loaded doubler plate reinforced Circular Hollow Section (CHS) T- and X-joints showed that appropriately proportioned plates can significantly improve the joint strength. This paper extends the numerical study to doubler plate reinforced CHS X-joints subjected to in-plane bending through systematic variation of the main geometric parameters. The load transferring mechanisms and failure modes of such joints, with different doubler plate size and thickness, are investigated and compared to corresponding mi-reinforced joints. Within the range of geometric parameters investigated, the doubler plate is observed to provide strength enhancement up to 240 percent for the corresponding un-reinforced joint. Strength equations are established using the computed results for assessment of the static strength of doubler plate reinforced X-joints, and design recommendations are provided for this joint type.
机译：在海上平台中，使用双层板来方便将辅助结构部件现场安装到主体结构上。对轴向加载的双倍板增强的T型和X型空心圆截面（CHS）接头的静态强度的最新研究表明，适当配比的板可以显着提高接头强度。通过对主要几何参数的系统变化，将数值研究扩展到承受平面内弯曲的双板增强CHS X接头。研究了具有不同倍增板尺寸和厚度的此类接头的载荷传递机理和破坏模式，并将其与相应的微筋接头进行了比较。在所研究的几何参数范围内，观察到的双合板可为相应的非增强接头提供高达240％的强度增强。使用计算结果建立强度方程，以评估双板增强X形接头的静态强度，并提供针对这种接头类型的设计建议。

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