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- column slenderness ratio 柱的细长比
- To study axially loaded behavior of the FRP-concrete-steel double-skin tubular long column an experiment of 3 specimens with slenderness ratio of 16. 为研究FRP-混凝土-钢双壁空心管长柱的轴心受压性能;完成了3根长细比分别为16.;8、16
- He found out the best slenderness ratio of the nail. 除此之外还模拟不同材质的钉子的敲击情形,并找出最佳的钉子细长比。
- The calculation formula for the conversion slenderness ratio of the crisscross section column composed of CFST and the increasing coefficient of the stability of the steel tube is determined. 在此理论基础上,确定了十字形截面方钢管混凝土组合异形柱换算长细比的计算公式和钢管稳定性提高系数。
- By building entitative model, the local buckling of steel I-section column is studied.We have build different slender ratio column and find the slender ratio will influence the form of local bulking. 建立了钢框架柱的实体模型,考察了火灾中钢框架柱的局部屈曲现象,并通过对不同长细比的H型钢柱的局部屈曲分析,发现长细比的变化会影响火灾中H型钢柱的变形形式;
- After analyzing the response of SRC column with different durations, slenderness ratios or eccentricities, the equations of ultimate strength are derived by regression. 通过各种受火时间、长细比和偏心距的钢骨混凝土柱抗火性能的计算,得出了相应的极限承载力计算公式。
- Also analyzed are the influences of CFRP ratio, angle steel ratio, slenderness ratio and eccentricity to the mechanical properties of the columns. 分析结果表明:含碳纤维布率和含角钢率越大,构件长细比越小,以及荷载的偏心距越小,复合加固效果越好。
- Moreover, the influence of initial crookedness would be reduced as slenderness ratio and bending moment are increased. 初弯曲对杆件的影响随长细比和弯矩的增大而减小;
- The resista nce decreases intensely when the slenderness ratio of the hot molding sand layer increases. 阻力随干砂层长细比的增加而急剧减小。
- The parameters used in the analyses include rise to span ratio, slenderness ratio, steel ratio and load conditions. 分析的参数有矢跨比、长细比、含钢率以及加载方式。
- Optimal pressure and flow in high pressure water generating system were selected, and aperture / slenderness ratio of nozzle was calculated. 合理选择高压水发生系统的压力和流量,计算出喷嘴的孔径与长径比。
- Eccentrically loaded concrete filled steel tubular(CFST) laced columns were tested with slenderness ratio as main experimental parameter. 进行了钢管混凝土格构柱偏心受压试验,试验参数为长细比。
- Experiments shows that fluidized bed supersonic jet mill has advantage in preparation of high slenderness ratio needle-like wollastonite powder. 实验表明:流化床气流磨在制备高长径比硅灰石粉体时具有优势;
- According to the design codes of three concrete filled steel tubular structures at present the critical slenderness ratios in failure between short and long column in three codes are calculated. 根据目前有代表性的三种钢管混凝土结构设计规范,计算分析了三种规范中关于短柱破坏与长柱破坏之间临界长细比的大小,并做了进一步的比较分析,给出了一些对工程有意义的结论。
- The results show that the plastic extension would not occur in tensile region until eccentricity is large and slenderness ratio is small. 研究结果表明:除相对偏心率很大及长细比很小的情况外,工字形截面偏心压杆受拉翼缘不会进入塑性状态;
- How to improve the designing methods of die used for bigger slenderness ratio half hollow aluminium profile are expounded. 阐述了如何提高舌比较大的半空心铝型材模具寿命的设计方案,即将半空心型材模具设计成整体分流模的形式。
- With the increasing of the slenderness ratio, the influence of the loading method on the hooping effect and mechanical behavior of the members are decreased. 随着长细比的增大,加载方式对试件套箍作用的影响有减小的趋势,且受力性能的差异也逐渐缩小。
- The horizontal pressure vessels which have large slenderness ratio are supported on multi - saddles to reduce the numerical value of the moment and support pressure. 为降低弯矩和鞍座反力,长径比大的卧式容器大多采用三鞍座或多鞍座支撑。
- Tests on rectangular CFDST beam-columns Considering the influences of slenderness ratio and load eccentricity, twelvetests on CFDST beam-columns were carried out. 考虑长细比、偏心率等参数,进行了12根矩形中空夹层钢管混凝土构件、6根矩形实心钢管混凝土构件和6根双层空钢管构件的偏心受压试验。
- Finally, a table of initial stress reduction factors with only two main parameters (initial stress degree and slenderness ratio) is given out to put in practice. 最后,以表格的形式给出仅含两个主要参数(长细比和初应力度)的初应力度影响系数,以供工程中更加简便、偏安全的应用。