In paper , it introduces their characters one by one . 3 ) axle center and partial pressed component when the longitudinal pressure is through the axle center of component , we call it as axle center pressed com 3 )轴心受压构件与偏心受压构件纵向压力通过构件截面重心的构件称为轴心受压构件c轴心受压构件可分为短柱和长柱两大类。
The complete deformation process of a t - shaped column is then analyzed . the load - carrying and deformation behaviors and the main factors affecting these behaviors of such a column are studied in detail 在此基础上,对一t形截面长柱的全过程进行了更为详尽的模拟计算,得到了组合长柱在偏心荷载作用下的受力和变形规律,并对影响这些规律的主要因素作了分析。
In a word , we may get the result that the long column formula is fit for the limit bearing capacity calculation of the high strength core concrete filled steel tube long column subjected to axial compress 将试验结果与公式计算结果进行比较,吻合较好。这说明论文提出的临界承载力计算公式,适用于钢管混凝土轴心受压长柱的临界承载力的计算,可供设计计算时参考。
For each curvature incremental step , a deformed curve in the correspondi ng state can be determined for the column . through the iteration for all incremental steps until the solution is convergent , the complete load - deformation relation can then be obtained 对各曲率增量进行反复迭代,直至得到收敛解,就获得了长柱从加载到破坏的全过程变形曲线及荷载-挠度曲线。
In this paper , slender columns with the two ends hinged are considered . an iterative computer analysis procedure taking into account the second - order effect of the axial load is proposed to predict this complete load - deformation process 本文针对两端铰接的任意截面钢-砼组合长柱,考虑长柱在偏心荷载作用下的附加弯矩影响(二阶效应) ,提出了一种数值迭代的计算机方法进行全过程分析。
At last , we can get the limit bearing capacity formula of concrete filled steel tube long column subjected to axial compress . on the basis of the theoretical analysis , twelve samples which have four kinds of long diameter ratio are studied experimentally 在理论推导的基础上,对四种长细比12个钢管混凝土轴心受压长柱进行了试验研究,量测了钢管混凝土轴心受压长柱在试验过程中各阶段的承载力、应变、纵向变形系数等。
The styly of thrum flower of p . merrilliana is about twice as high as that of p . cicutarrifolia . moreover , the thrum papillae are frequently longer and also more crowded than the pin papillae , whereas the size of pollen of p . merrilliana is 1 . 6 times that of p . cicutarrifolia 安徽羽叶报春长柱花花柱约是短柱花花柱的两倍高,且长柱花柱头突起长而密,短柱花的柱头突起短而疏,但短柱花的花粉约是长柱花花粉大小的1 . 78倍。
The results of the study demonstrate that under the condition of the same slendness ratio , the stability factor of axially compressed medium long concrete filled steel tube column has no relation with peak stress of the core concrete , instead , the factor will depend on peak strain of the concrete 研究结果表明,在长细比相同的情况下,钢管混凝土轴压中长柱的稳定系数与核心混凝土的峰值应力无关,而取决于核心混凝土的峰值应变。
The deformation process of the composite column from initial loading to final failure is complex and nonlinear . in the previous studies this complete process was often determined by experimental method . the objective of this paper is to predict this complete process using numerical simulation techniques 组合长柱从加载到破坏的过程是一个复杂的非线性变形过程,通常采用试验方法才能完全确定,本文则借助计算机采用数值模拟方法预测这一复杂变形过程。
The main contents are followed below : ( 1 ) for the aim of knowing the characteristics of main factory building structure frame columns of large - scale thermal power plants , nine high strength concrete frame columns with high axial compression ratio and six slender ordinary strength concrete frame columns with high axial compression ratio were tested under low reversed cyclic horizontal loading for the very first time , and thus the influencing factors of normal section bearing capacity , such as concrete intensity grade , axial compressive ratio , slendemess ratio , the type of stirrups and stirrup ratio , etc , the anti seismic deformation capability of frame columns were acquired 本文主要研究的内容有: ( 1 )首次针对火电厂主厂房结构框架柱的特点,对9个高轴压比高强混凝土框架柱和6个高轴压比普通混凝土框架长柱进行了低周反复水平加载试验,获得混凝土等级、轴压比、长细比、配箍形式及配筋率等对框架柱的抗弯及抗剪承载力、抗震变形能力的影响因素。