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变厚度预应力中空板的设计与研究 被引量:1
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作者 孙澄潮 刘刚君 刘正华 《建筑结构》 CSCD 北大核心 2009年第S1期519-523,共5页
本文采用SlabCAD对变厚度板的内力与变形进行分析,提出了设计计算的具体要求,并得出以下结论:1)变厚度中空板是一种优化的板型,内力分布优于平板,变形特征又与平板相似,因此厚板不同于扁梁,决定了变厚度板的设计计算特点;2)变厚度板的... 本文采用SlabCAD对变厚度板的内力与变形进行分析,提出了设计计算的具体要求,并得出以下结论:1)变厚度中空板是一种优化的板型,内力分布优于平板,变形特征又与平板相似,因此厚板不同于扁梁,决定了变厚度板的设计计算特点;2)变厚度板的厚板配筋是由裂缝控制等级确定的;3)中空设计不仅能减轻楼板自重,从成空截面分析,还能降低配筋量;4)厚板的高度大,又布置在板的内力较大处,适合于施加预应力,板带之间的预应力效应是相互影响的,文中给出了计算板带预应力的方程组;5)变厚度板具有较好的技术经济指标,要设计好变厚度大板,厚板不要太厚,薄板不能太薄,变厚度比应大于等于0.4。 展开更多
关键词 变厚度中 变厚度比 裂缝控制等级 成空设计 预应力
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A Study on the Individual Distance of a Small RobotMoving towards Adult Male and Female 被引量:1
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作者 Miyu Aoki Akiko Watanabe 《Journal of Civil Engineering and Architecture》 2013年第5期585-590,共6页
In Japan, robots are a regular feature of daily life and in rehabilitation support care and reporting on any emergencies involving the elderly. This study is on design guidelines for the living space with robots and c... In Japan, robots are a regular feature of daily life and in rehabilitation support care and reporting on any emergencies involving the elderly. This study is on design guidelines for the living space with robots and can be applied to the architectural planning and focused on the basic environmental primary factor. The key terms were space, people-adult male and female, positions, and the robot-size, speed-settings and approaching angles. This research is the distances a small mobile robot moves to an adult male compared with that toward an adult female. The authors focus on a small mobile robot and identify the distances from which the robot can approach individuals, and also clarify how the distances to individuals change as the robot's speed and angle of approach varies. The study did this experiment to analyze 30 patterns per person and also when at an angle of the difference of male and female, two position standing/seated and three speed-settings0.08 m/sec, 0.24 m/sec and 0.48 m/sec and five directions--0°, 45°, 90°, 135° and 180°. 展开更多
关键词 Small mobile robot individual distance living space.
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