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中文摘要：
门式刚架结构是目前国内外单层工业厂房及单层大跨民用建筑中应用最广泛的结构，转角节点是门式刚架的主要连接部分，其连接性能将直接影响到门式刚架结构在荷载作用下的整体行为。同时，该类节点的构造特点也决定了其刚度特征为半刚性。本文将通过数值模拟和试验方法，就不同标准的梁柱腹板高厚比、翼缘外伸宽厚比以及转角节点区高宽比的门式刚架转角半刚性节点进行系统的研究。建立了三折线弯矩-转角模型，得出了弯矩-转角关系曲线表达式。
英文摘要：
At present, the structure of gabled frames is the most extensively-applied structure in the single-storey industrial building and long-span single-storey buildings. The joints of corner are main connecting part of gabled frames, of which the performance directly affects the integral behavior of its structure subject to load. At the same time, the construction of joints also determine its features of the semi-rigid stiffness. In this paper, numerical simulation and experimental research are conducted to investigate semi-rigid connection of corner joints in gabled frames with different height-thickness ratios of beam-column web, width-thickness ratios of flange, and height-width ratios in corner joints. The three-folder-line moment-rotation relation model has been established and the expression concerning moment-rotation relation obtained.
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