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本刊讯建研科技股份有限公司组织实施的足尺装配式混凝土框架结构低周反复荷载试验顺利完成。该试验是建研公司负责的“十二五”国家科技支撑计划课题“装配式建筑混凝土框架结构关键技术研究”中的关键试验。试验试件为两层两榀两跨的装配式混凝土框架结构,总高度6.8m,主要受力方向梁跨度为6m和4m;由叠合板、叠合梁、预制柱、预制楼梯以及后浇节点组成。其中预制梁、柱采用大直径大间距配筋技术,预制柱钢筋采用灌浆套筒连接,梁钢筋在节点区内采用锚固板锚固;节点构造简单,安装方便快速。预制楼梯采用上端固定铰支座,下端滑动铰支座的构造;楼板
The Journal of Research and Technology Co., Ltd. organized by the full implementation of the full-scale low-cyclic loading concrete frame structure successfully completed the test. This test is the key test in the “Twelfth Five-year” national science and technology support project “Research on key technologies of prefabricated building concrete frame structure” which is responsible for the research and development company. The test specimen is a two-story, two-span, two-span, prefabricated concrete frame structure with a total height of 6.8m and main span beams of 6m and 4m for force beams. The test specimens are composed of laminated plates, composite beams, prefabricated columns, composition. The prefabricated beams and columns are provided with large-diameter and large-spacing reinforcement technology. The precast column reinforcement is connected by a grouting sleeve, and the beam reinforcement is anchored by anchoring plates in the node area. The node is simple in structure and convenient for installation. Prefabricated stairs using the upper fixed hinge support, the lower sliding hinge support structure; floor