Jianzhu Gangjiegou JinzhanT形方颈单边螺栓是一类新型的单侧安装紧固件，可用于闭口截面钢构件连接，其构造简单、安装便利、无需额外的安装辅助工具，能适应现场粗放的施工方式，具有较大的应用潜力。对4个T形方颈单边螺栓连接钢梁-方钢管柱节点和1个传统螺栓连接节点开展了单调荷载下的静力性能试验，探讨了长圆形螺栓孔布置方案以及端板加劲肋和钢管柱内混凝土两种加强措施对节点结构响应的影响。研究了T形方颈单边螺栓连接节点的破坏模式、转角-弯矩关系、关键部位转角-应变关系、各部位屈服顺序等，揭示了此类节点的工作及破坏机理 ...
王新华, 孙乐乐, 王培军
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Jianzhu Gangjiegou Jinzhan研发T形方颈单边螺栓的初衷是为解决闭口截面钢构件的螺栓连接难题，尤其是钢梁-钢管柱连接。目前已有较多针对T形方颈单边螺栓连接钢梁-钢管柱节点的研究报道，但是相关研究并未建立系统全面的节点承载力计算模型，这在一定程度上限制了此类连接的推广。在国内外相关研究成果的基础上应用组件分析法和薄板塑性铰线理论提出了T形方颈单边螺栓连接钢梁-钢管柱节点的抗弯承载力计算方法，可用于此类连接的结构性能预测。本文主要结果：（1）应用薄板屈服线理论 ...
王新华, 孙乐乐, 王培军
doaj
Jianzhu Gangjiegou Jinzhan在已报道的T形方颈单边螺栓连接钢梁-钢管柱节点试验研究中，因柱壁鼓曲变形引起的螺栓拔出破坏较为典型。为避免钢管柱壁在梁端弯矩下发生弯曲变形，提高节点变形能力，提出了两类装配式节点加强组件，并对内置加强组件的4个节点开展了单调荷载下的静力性能试验，探讨了加强组件类型和组件长度对节点结构响应的影响。试验结果表明，加强组件可以避免节点发生螺栓拔出破坏，其中双槽钢组件和H型钢组件使节点的屈服弯矩分别提高8.1%~31.8%和72.1%~72.6%，峰值弯矩提高11.6%~21.7%和36.7%~38.1 ...
马帅, 孙乐乐, 王思琦, 吴一明
doaj
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