Jianzhu Gangjiegou Jinzhan防屈曲支撑端部设计不合理，易形成薄弱部位破坏，为避免这种现象发生，提出了一种新型双层方钢管防屈曲支撑。双层方钢管约束着其间隙内的耗能板，耗能板上下部的正面或反面与内方钢管外表面或外方钢管内表面焊接，这种构造方式使得此类支撑受压、受拉时性能一致。设计并制作了4个双层方钢管防屈曲支撑试件，进行了低周反复荷载试验，研究了耗能板布置方式和耗能段数量对这种支撑性能的影响，得到了试件在循环荷载作用下的破坏机理、滞回性能、延性、刚度退化规律以及耗能能力等，并采用有限元软件进行了模拟分析。试验结果表明 ...
任炜晨, 赵宝成, 徐伟栋
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Jianzhu Gangjiegou Jinzhan, 2015 针对现行部分组合钢-混凝土构件中系杆易于脱落的问题,提出两种系杆改进形式,设计了4根梁试件进行试验研究,考察纯弯与剪弯受力状态下梁的性能表现。试验结果表明:X型与C型系杆均能较好地拉结受压翼缘,受压翼缘在弹性段内没有屈曲;采用了这两种系杆的试件承载能力基本一致;与C型系杆相比,X型系杆对混凝土的约束作用更强,混凝土整体性更好,并且能抑制斜裂缝;纯弯试件与剪弯试件破坏部位的现象主要以混凝土的压溃、受压翼缘屈曲为主,剪弯试件破坏部位还观察到了受拉翼缘的开裂。此外 ...
李炜, 陈以一
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Jianzhu Gangjiegou Jinzhan, 2017 世博博物馆建筑理念由"历史河谷"和"欢庆之云"两部分组成。根据不同功能分区分为3个不同结构体系:办公楼采用混凝土框架结构;主体结构采用钢框架-支撑结构;欢庆之云采用空间曲面网格结构。该项目建筑立面形态复杂,平、立面极不规则,结构存在大层高、错层、重载、大跨、悬挑、立面收进等多种复杂因素,该项目创新提出桁架抗弯框架的概念,消能减震措施采用屈曲约束支撑、软钢阻尼器、桁架下弦耗能构件。结构设计进行了多遇地震作用下的弹性分析、罕遇地震作用下的弹塑性分析等,分析结果表明,各个单体结构均具有良好的抗震性能 ...
姜文伟 +4 more
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[Progress in diagnosis and treatment of finger flexion deformity caused by forearm flexor muscle lesions]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiJiang Y, Wei J.
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[Numerical analysis research on the impact of tibial tray fixation peg structure on initial fixation stability in total knee arthroplasty]. [PDF]
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[Finite element analysis of tibial and femoral resection configurations on varus alignment in total knee arthroplasty]. [PDF]
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[Effects of elastic modulus of the metal block on the condylar-constrained knee prosthesis tibial fixation stability]. [PDF]
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[Application of soft tissue balance combined with medial displacement calcaneal osteotomy for progressive collapsing foot deformity]. [PDF]
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