双矩管装配式防屈曲支撑螺栓设计理论研究

发布时间：2018-05-04 20:30

  本文选题：双矩管装配式防屈曲支撑 + 撬力系数　； 参考：《工程力学》2016年03期

【摘要】：装配式防屈曲支撑的外围约束构件主要通过高强螺栓连接形成整体,螺栓的布置及直径选取直接关系到外围构件是否能有效约束内核构件的侧向变形。为此,该文在双矩管装配式防屈曲支撑外围约束构件刚度取值及其设计方法较完善的前提下,通过考虑外围约束构件的螺栓布置间距、内核多波变形波长以及因外围约束构件板件局部变形引起的撬力影响来确定跨中螺栓内力;此外,还提出了端部螺栓的内力计算公式及端部螺栓加强方案,完善了双矩管装配式防屈曲支撑螺栓设计理论。
[Abstract]:The peripheral restrained members of prefabricated buckle-resistant braces form a whole through high-strength bolt connections. The arrangement and diameter selection of bolts are directly related to whether the peripheral members can effectively restrain the lateral deformation of the core members. Therefore, on the premise that the stiffness and design method of the external restraint member of the double-moment tube assembly anti-buckling bracing are relatively perfect, the bolt arrangement spacing of the peripheral restrained member is considered in this paper. The internal force of the mid-span bolt is determined by the multi-wave deformation wavelength of the kernel and the influence of the prying force caused by the local deformation of the external restrained member plate, in addition, the formula for calculating the internal force of the end bolt and the reinforcement scheme for the end bolt are also put forward. The design theory of double moment pipe assembly buckling supporting bolt is improved.
【作者单位】： 清华大学土木工程系;上海建工集团;
【基金】：国家自然科学基金项目(51178243) 清华大学自主科研计划项目(2012Z10134)
【分类号】：TU398.9
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本文编号：1844547