| 1. | The analysis of calculating the local compression of masonry construction 砌体结构局压计算的分析研究 |
| 2. | Based on the test results , the simplified model of transverse local compression to calculate the strength of cfrst joints under compression load was built up 根据试验结果,建立了适用于矩形钢管混凝土桁架受压节点承载力计算的矩形钢管混凝土横向局部承压强度计算的简化模型。 |
| 3. | Through experiment of uniform local compression strength of coalstore - shale fired perforated brick masonry ( cfpbm ) , the author obtains the data of uniform local compression strength and coefficient ( r ) of uniform local compression of cfpbm 另外,论文通过对煤矸石页岩多孔砖砌体局部均匀受压试验,得出了煤矸石页岩多孔砖砌体的局部均匀抗压强度、均匀局压强度提高系数等指标。 |
| 4. | The simplified model took into account the working of the steel tube , and the calculating method of local compression strength of concrete in tube corresponded to that recommended in the chinese code for design of concrete structures 简化模型考虑了钢管参与工作,管内混凝土局部承压强度计算方法与我国混凝土结构设计规范保持一致。建立了矩形钢管混凝土桁架节点非线性有限元分析模型。 |
| 5. | The author has derived the formula to calculating the local compression coefficient ( ) of cfpbm in the form of radical expression and logarithm expression . besides these experiments , the author also used ansys ( a finite element program ) to analyze the effect on the perforated bricks " physics caused by the 本文采用了ansys有限元程序,通过对荷载作用下,不同孔型及孔洞率对砌体内力的影响的比较,分析出了影响多孔砖砌体强度的各种因素。 |
| 6. | Meanwhile , through contrasting with code of masonry structure design , the author provides some items for cfpbm structure . the result of experiment shows that uniform local compression strength of cspbm belows the code listing strength . at last , the value of y is defined 1 . 5 试验结果表明:煤矸石页岩多孔砖砌体的局部均匀抗压强度和现行规范中粘土砖相比,煤矸石页岩多孔砖砌体局部均匀抗压强度低于规范值,最后确定均匀局压强度提高系数的值1 . 5 。 |
| 7. | Through the experimentation for the physical performance of cfpb masonry under local compression , the author has observed the deformation and failure of cfpbm . based on the mathematical statistics and regression analysis of the experimental data , the author derived a feasible and common formula for counting the cfpbm ' s local compression strength regarding the different local compression locations , analyzed stress distribution of local bearing masonry under beams end , and provided the calculating formula on effective supporting length of beam end in brick masonry . as the results of experiments demonstrate , owing to the cfpb ' s own holes " system , the beneficial effects , the bounding effect of surrounding masonry and the spread effect of force , have not developed completely 试验结果分析表明:由于多孔砖自身的孔洞结构,砌体内部的围箍作用和力的扩散作用未得到充分发挥,局压强度虽较轴心受压强度有所提高,但仍低于同情况下实心砖的局压强度;当有上部荷载作用时,对砌体局压有利的悬臂卸荷作用和内拱卸荷作用均不明显,因此在推导梁端局压强度计算公式时,未考虑此可能存在的有利影响,计算偏安全;局压强度提高系数公式除采用规范公式(二项式)的表达式,还用对数式进行了回归推导,得到了一个较为普遍的公式;论文还对梁端局压的梁端有效支承长度计算公式进行了回归推导。 |
| 8. | Based upon the experimental research and nonlinear finite element calculation , and the analysis of joint failure modes , a set of formula was proposed to predict the ultimate bearing capacity of cfrst joints : 1 ) the ultimate bearing capacity of t - , y - , x - compression joints and k - compression branch joints can be predicted according to the failure model of transverse local compression 基于试验研究和非线性有限元数值计算,通过对矩形钢管混凝土桁架节点各种可能破坏模式的分析,提出了矩形钢管混凝土桁架节点承载力计算的破坏模式和相应计算公式: t 、 y 、 x型受压节点和k型受压支管节点承载力按横向局部承压破坏模式进行计算。 |
| 9. | Multisensor distributed data fusion has many practical applications , and it is a focus in technological fields . this paper deals with multisensor distributed statistic decision and multisensor distributed estimation fusion . we get some results : in multisensor distributed statistic decision , we consider multisensor distributed neyman - pearson decision with correlated observation data and suggest an efficient algorithm to search for optimum local compression rules for any fixed fusion rule 本文在多传感器分布式统计判决和多传感器分布式估计融合方面进行了较为深入的研究,主要取得的成果为:在多传感器分布式统计判决理论方面,对在相关观测下,固定融合律的多传感器分布式二元neyman - pearson判决,给出了最优分站压缩律的不动点类的必要条件和相应的离散迭代算法,并讨论了算法的收敛性。 |
| 10. | The visual compression and storage system described in this paper employs the technology of digital image compression synthetically . in addition , it utilizes the latest appliances . the main features of this system lie in its small volume , automobile record , local compression and storage 本文描述的成像压缩存储系统综合运用了数字图像压缩技术,并且采用了最新的器件,其主要特点是体积小、自动记录、本地压缩存储和无需网络支持,它主要面向于拍摄背景不变或变化不大的应用场合。 |