钢筋混凝土主次梁相交节点配筋构造分析

分析了主次梁相交节点处八字形斜裂缝产生机理,在此基础上,对工程中一些常见不合理做法进行辨析,并提出相应的配筋构造建议,以保证节点传力安全可靠,加强结构或构件之间连接的整体性。     

谈公路不良路基加固技术实例分析

不良地基路段会带来路基沉降、滑移等问题,给行车安全造成干扰,加固中需要考虑不同的地质情况。文章结合工程实例浅谈几种公路不良路段路基加固处理方法。     

喷射混凝土在桥梁维修加固工程中的应用

笔者主要阐述了锚喷混凝土在桥梁维修加固工程中的应用,并从喷射混凝土设计、喷射混凝土施工两方面分析了喷射混凝土施工工艺的经济性及实用性。     

Investigation in Longitudinal Compression of Wool Based Suiting Fabrics

This paper describes an investigation in the fabric longi-tudinal compressibility of thirty-one suiting and trouse-ring materials using a newly developed device attached to the advanced Instron extensometer Model4466.The at-tachment was designed mainly to ensure a correct align-meat of fabric plane at the start of compression.Usingthe newly developed testing method,fabric longitudinalcompression curve was obtained and the results of longi-tudinal compressibility measured by two different com-pression load ranges(from 0 to 0.5 N/m width and 0 to1 N/m width)were examined.In addition,their rela-tionships with the fabric low-stress mechanical proper-ties measured by the KES-F system were investigatedusing statistical analysis.The results clearly indicatedthat significant differences existed when substituting fab-ric longitudinal compressibility with fabric extensibilitymeasured using the KES-F system under a low-load.Significant infiuence of yarn rotational movement in fab-ric on the longitudinal compressibi     

浅谈鲇鱼山水库出口闸室及下游挡土墙段存在的问题及加固措施

介绍了鲇鱼山水库加固工程概况,分析了鲇鱼山水库出口闸室及下游挡土墙段存在的问题,提出了水库除险加固的措施。     

The Young's moduli prediction of random distributed short-fiber-reinforced polypropylene foams using finite element method

The elastic moduli of short-fiber-reinforced foams depend critically on the fiber content and fiber length,as well as on the fiber orientation distribution.Based on periodic tetrakaidecahedrons,the finite element models with short-fiber reinforcement were proposed in this paper to examine the effects of the fiber content and fiber length on Young's modulus. The fiber length distribution and fiber orientation distribution were also considered.The proposed models featured in a three-dimensional diorama with r...     

桩基础施工中钢筋笼上浮问题分析与预防措施

在混凝土灌注桩基础施工中，发生钢筋笼上浮是较常见的问题，其对建筑工程桩基施工质量的影响是显著的，本文对桩基施工中钢筋笼上浮问题进行了分析，并提出了相应的预防措施。     

爆炸载荷作用下RC板的能量法优化设计

由能量法可知,钢筋混凝土(RC)板的抗力-位移(R-y)曲线下方面积代表板在爆炸荷载作用下可能吸收的能量.分析不同配筋率的R-y曲线下方面积,面积最大时的配筋率即可定义为相应设计的最佳配筋率.考患材料非线性及高应变率对混凝土和钢筋强度的影响,采用分层法迭代求解抗力-挠度(R-y)曲线.研究成果可供受爆炸荷载的RC板优化设计借鉴.     

物理实验资源纵向开发与横向利用的研究与实践

各理工科类高校物理实验教学资源丰富,在保障实验教学顺利开展的基础上,物理实验室在建设过程中,应把纵向开发现有设备、有效整合资源配置以及横向利用现有资源作为自身发展和提高的重要目标。     

冷拔螺旋钢筋粘结性能分析

在文献〔１〕的基础上，根据有关资料〔１，２〕、生产工艺和形状特点，对冷拔螺旋钢筋与混凝土的粘结进行静力分析，从而进一步分析研究其粘结性能，为推进开发这一变形钢筋新品种提供理论依据。