梁

Temperature field of cross section, full curve under fire and related factors of them are analyzed.

5对轻钢-混凝土组合梁的抗火性能进行了研究：分析了截面的温度场及其影响参数；计算了构件的抗火全过程曲线，并分析了截面参数对全过程曲线的影响；采用抗力折减系数的方法研究了轻钢-混凝土组合梁承载力随受火时间的变化，并分析了各参数对抗力折减系数的影响

The methods of plane arrangement and checking of bowl-button steel scaffold were demonstrated in detail based on the engineering construction of cast-in-place Continuous beam in Houyan Cross-bridge of Shenda Highway. In addition, the methods of communicating the length of U-tray and adjusting the gradient have been given. It is pointed out that original pod can adjust the greater longitudinal or tranverse grade in the box-girder construction and welding-steel-bar can reduce partial compression.

通过后盐立交桥连续箱梁施工这一工程实例，详细论述了碗扣式钢管脚支架的平面布置方法及受力验算方法，提出了碗扣式钢管脚支架的U托旋出长度的计算方法及纵横坡的调整方法，并指出采用找零立杆的方法可以解决较大纵横坡度箱梁的施工问题；采用贴焊钢筋的方法可以解决U托偏心受压的间题。

The cold-formed sheet is a groove-shaped structure that is composed of a crown plate and reinforced ribs connected with ends of the crown plate; the box beam is a box-shaped structure comprising an upper wing edge, a lower wing edge and two side webs that are connected in every two components.

由压型钢板、纤维增强塑料箱梁组成，压型钢板为由顶板和顶板端部的加强肋相连组成的槽形结构，箱梁为由上翼缘、下翼缘和两侧腹板两两相连组成的箱形结构，其结构如图所示。

This product line can achieve cut the longeron and the both end side of armed beam and wing plate in one stage, cutting adapt wide range, and one machine can be uesd in different way, bearing stonger flexibility. Right smart satisfy client's individualized requirements.

该生产线可实现在同一工位对纵梁及加强梁前后端头和翼面的切割，切割适应范围广，能够做到一机多用，具有较强的柔性，极大满足了用户个性化的需求。

Another task that needs to be done before the deck beams are glued (I use 30 minute Epoxy for glue) in is to cut a notch at the center point of the beam where the centerline deck beam will be placed.

另一项任务，需要做前甲板上梁的胶合板（我用30分钟的环氧树脂为胶），是在切开一个缺口在中心点梁如中线甲板束将放在。

Besides these,deck beam finite element analysis method can be applied flexibly to box girders with different cross-section or rib-plank structure and those without orthogonal support .

板段元法适用于其他断面形状的箱梁结构或肋板式结构，也可用于斜交箱形直梁的分析，具有较好的适用性。

Secondly, in the dissertation, the theories and methods of calculation on bridge deck system were discussed, and bridge deck system simplified as a beam was analyzed with the theory of elastically supported continuous beam and the method of deformation compatibility; through the theory of orthotropic plate being applied to analyzing the bridge deck system which was assumed an elastically supported continuous plate, certain theoretical derivations were made and some calculation formulas were given.

其次，本文研究论述了桥道系的计算理论和方法，将桥道系简化为梁，利用弹性支承连续梁理论和变形协调法进行分析；把桥道系视为弹性支承连续板，利用正交异性板理论进行分析，作了一定的理论推导，并给出了相关计算公式。

To liberation, the two piers cracks have occurred, endangering the bridge itself, has had to limit heavy vehicles crossing the bridge, speed limits, limit the number. 1954, the local spent six months repaired the crack of the pier, in the original steel trusses on the level of amputation and a curved shape of the upper limbs, using reinforced concrete bridge deck boards, so that the bridge deck beam into a combination of vertical and horizontal beams, Increase the carrying capacity of 20 tons of cars can have full. 1981, the upper reaches of the Yellow River Bridge has withstood the test of catastrophic flood, safe and sound.

到解放时，两个桥墩已发生裂缝，危及大桥本身，不得不对过桥车辆限重、限速、限数。1954年，当地用了半年时间修好了开裂的桥墩，在原来钢桁架的水平肢上加了一根弯曲形的上肢，桥面改用钢筋混凝土板，使桥面的纵横梁变为组合梁，提高了承载能力，20吨重的汽车可以畅行无阻。1981年，大桥经受了黄河上游特大洪水的考验，安然无恙。

With the theory of energy random analysis of train derailment, the security of moving train on up line and down line of Laoluanhe bridges is analyzed contrastively, and the influence on improving resisting derailment ability of bridges by widening the distance between two main beams of the deck steel plate girder bridge is studied.

进一步运用列车脱轨能量随机分析理论，对比分析了老滦河桥上、下行线上的列车走行安全性，分析了增大钢板梁主梁中心距对提高桥梁抗脱轨能力的影响。

Based on the analysis of the main failures discovered in pavement on steel deck plate and the demanding service condition of the pavement on steel deck,high-temperature rutting test,low-temperature bending test and controlled stress flexural fatigue test are used to study the performance of asphalt mixtures modified by epoxy resin including high-temperature stability,low-temperature cracking-resistance,and fatigue cracking-resistance,which are served to evaluate the modification effect of epoxy resin of different contents.

文摘：在分析钢桥面铺装层主要病害和特殊工作环境的前提下，分别采用高温车辙试验、低温小梁弯曲试验和控制应力小梁弯拉疲劳试验，研究了不同环氧树脂掺量下的环氧树脂改性沥青混合料的高温稳定性、低温抗裂性和抗疲劳性能。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷