The difference of the predictions of the load-bearing capacity using LRFD(1994),AIJ (1997),EC4(1996)and GJB(2001)is compared,and contrasts the calculating results with the experimental results,including:73 axially compressive members,8 pure bending members and 20 compression-bending members.
比较了设计规程 LRFD(1994),AIJ(1997),EC4(1996)及 GJB(2001)在进行矩形钢管混凝土构件承载力计算时的差异,并将以上规程的计算结果与收集到的试验结果进行了对比,其中包括:73个轴压、8个纯弯及20 个压弯构件。
Design methods of concrete filled circular steel tubular beam-columns in different codes, including LRFD(1996,American),AIJ(1997,Japan),EC4(1996,Europe),CECS28:29(1992,China),DL/T (1999,China)are introduced respectively in this paper,the calculating results are compared with those of tests(including 256 axial loaded members,12 pure bending members and 106 compression-bending members).
简要介绍了美国 LRFD(1994)、日本 AIJ(1997)、欧洲 EC4(1996)和中国 CECS28:29(1992),DL/T5085-1999 (1999)设计规程中有关圆形截面钢管混凝土压弯构件计算方法的特点,并将各类方法的计算结果和搜集到的试验结果(包括256个轴压、12个纯弯及106个压弯构件)进行对比分析,结果表明,五种规程均能较好地计算构件的承载力,且偏于安全。
Through analyzing integral panel and theoretical calculation of press shaping die,a combination technology of composite bending forming and shot blast is introduced,which integral panel can be carried out,so as to achieve a highly efficient,high-precision requirements.
通过对整体壁板的结构分析和压弯成形的理论计算,选择采用精密压弯和喷丸相结合的复合成形技术,对整体壁板进行成形,从而达到了高效、高精密的要求。
Based on the analysis of the initial defect of the beam,it is derived a formula for stability bearing capacity of the bending members under lateral loads,and makes a conclusion of the bearing capacity and normal performance of defective beams that the defective beams with no special treatment are still safe.
通过对初始缺陷梁的理论分析,推导横向荷载作用下压弯构件的稳定承载力公式,并以此为依据,对缺陷梁承载力和正常使用性能做出判断,认为不做特殊处理缺陷梁仍是安全的。
Out-Plane Buckling of Eccentrcally Tensile Members and Tapered Beam-Columns;
拉弯构件及变截面压弯构件弯扭失稳分析
The branches were bowed down with the weight of snow.
树枝被积雪压弯了。
branches bowed down by the snow on them
被积雪压弯的树枝.
Whose boughs are bent with thickset fruit;
让累累果实压弯了腰；
The wheels of the car had also been bent.
车的轮子也被压弯了。
Hydraulic Pipe Bender
液压弯管机（俗名喉积）
Whose boughs are bent with thickest fruit;
繁茂的果实将树干压弯；
Vines that were weighed down with grapes.
被葡萄压弯的葡萄藤
The branches bent low with ripened fruits.
成熟的果实压弯了树枝。
The branches are weighed down by a heavy layer of snow.
树枝都被厚雪压弯了。
A machine for bending and folding sheet metal.
金属压弯成形机压弯和折叠金属板的机器
DISCUSSION ON THE NECK BENDING STIFFNESS OF WORK ROLLS IN THE HYDRAULIC BENDING ROLL CONTROL SYSTEM
液压弯辊控制中工作辊辊颈弯曲刚度探讨
Hydraulic pump is the power unit of the hydraulic puller (hydraulic press, hydraulic pipe bender, hydraulic jack).
油压泵是油压拉出器（油压机、油压弯管机、油压千斤顶）的动力装置。
Hydraulic pump is the power unit of the hydraulic puller(hudraulis press, hydraulic pipe bender, hydraulic jack).
油压泵是油压拉出器(油压机,油压弯管机,油压千斤顶)的动力装置.
The fruits were so heavy that it weighed the branches down.
果实重得把树枝都压弯了。
Design for tube bending device of W67-100/3200 bending press
W67Y-100/3200型折弯压力机弯管装置的设计
hydraulic sheet-metal bending press
液压金属板料折弯机
NC hydraulic press brake
数控液压板料折弯机