截面

Through analyzing the work characteristic and the work mechanism of the interface in this research paper, bonded rebar technique is applied to the bonding treatment of the interface, the reformative method of enlarging sectional areas is proposed, and the work mechanism of the anchor bar in the interface is analyzed. The work mechanism of the reformative method of enlarging sectional areas and the interface mechanical performance have be more systematical analyzed and studied with the finite element numerical simulation method, the structural testing method, and combing project practice. Based on that, the suggestion formula of shear and tension bearing capacity for the old and new concrete is put forward.

本研究论文通过分析新旧混凝土界面的工作特点及工作机理，将化学植筋技术应用于新旧混凝土界面的粘结处理，提出改进的加大截面加固法，分析了锚筋在新旧混凝土界面上的工作机理；运用有限元数值模拟方法和结构试验方法，并结合工程实践，对改进的加大截面法的工作机理及界面受力性能进行了较为系统的研究分析，提出了新旧混凝土抗剪、抗拉承载能力的建议公式；根据研究结果，提出了改进加大截面法的设计原则和施工工法，并在工程应用中取得了良好的效果。

Aiming at the problem of buckling stability capability of box section hoist boom of wheel crane, a complete section of hoist boom is taken as analysis object and buckling instability of the webs is analyzed and researched with the booms of different sectional shapes by applying finite element analysis method. Compared with crane design code (GB3811-83), one piece of plate is taken to calculate buckling stability, the method is easier and more accurate and calculation and analysis of complicated sectional shapes are easy to conduct.

针对轮式起重机箱型起重臂的抗屈曲失稳能力问题，采用有限元分析方法，取起重臂截面半波长段作为分析对象，对相同工况不同截面形状的起重臂的屈曲失稳情况进行分析研究，相对于起重机设计规范(GB3811-83)给出的取一块板进行屈曲计算要快捷、准确得多，而且也容易完成对复杂形状截面的计算分析。

Two segment variable cross section ; three segment variable cross section ; section break

两段变截面；三段变截面；截面突变

It draws device conclusion and actual project meaning of draft tube in Danjiangkou hydraulic power station expanding units project.

简要阐述了水轮机尾水管的两种三维造型方法的原理，即水平截面法和斜向截面法，并提出了本文建模所采用的是斜向截面法。

The results show that the ultimate stability bearing load by nonlinear analysis is close to the test load, they only have 10% deviation. For steel bridge towers, the correlation of the panels in the section of rectangle with chamfers is more obvious than that in the section of rectangle. If the four angles of the rectangle section were cut off, a panel with the smaller ratio of width to thickness forms, which can supply effective constraint to other weak panels with the larger ratio of width to thickness.

结果表明：第2类稳定计算得到的失稳极限荷载与实测荷载较为接近，两者相差10%；带切角矩形截面钢桥塔较矩形截面钢桥塔板件间的相关作用更加明显，对矩形截面钢桥塔进行切角，形成宽厚比较小的壁板，可以对宽厚比较大的弱板提供有效约束。

Authors introduced the design schemes to strengthen fish-bellied T-section prestressed concrete crane girders by CFRP,including the computing methods of bending and shear carrying capacity,as well as the corre...

详细介绍了用碳纤维布加固鱼腹式T形截面预应力混凝土吊车梁的设计方案，给出了正截面受弯和斜截面受剪补强加固的计算方法，并提出了相应的施工方法及具体的构造措施。

Results The crosssectional area and the number of nerve fiber were (2.46 ± 1.03) mm2 and 1 305 ± 239 for the profundus nervi ulnaris,(2.62 ± 1.75) mm2 and 1 634 ± 343 for the recurrent branch of median nerve,(1.60 ± 1.39) mm2 and 1 201 ± 235 for the superficial branch of ulnar nerve, and (2.19 ± 0.89) mm2 and 1 362 ± 162 for the comman digital nerve of the ring finger.

结果 尺神经深支横截面积为（2.46 ±1.03） mm2，纤维计数（1 305 ± 239）根；正中神经返支横截面积（2.62 ± 1.75）mm2，纤维计数（1 634 ± 343）根；尺神经浅支横截面积为（1.60 ± 1.39）mm2，纤维计数（1 201 ± 235）根；正中神经中环指指总神经横截面积为（2.19 ± 0.89）mm2，纤维计数（1 362 ± 162）根。

Next, author has proved it through ten samples for experiment, and then, we get the clear and definite understanding of failure mechanism of normal section, the failure state and the work behaviors of every component (flat steel wire web, inclined steel wire, concrete coat, longitudinal bar), established the formulas of the load-bearing capacity of the normal cross-section.

本章首先对3D板的正截面抗弯承载力进行了理论分析，并通过六个试件做了试验验证，明确了3D板正截面破坏机理、破坏状态以及3D板各组成构件（钢丝平网、斜丝、混凝土面层、纵向受拉钢筋）的受力性能，建立了承重型3D板正截面承载力计算公式及适用条件。

The distributions of stresses and strains on the section of strengthened beam are analyzed. The different formulas for the calculation of internal forces of section are deduced according to the different development stages of strain and a flow diagram for the calculation is established. With the program based on the diagram, the internal forces and some relevant parameters of the strengthened beams are calculated and the main factors which affect the ultimate bearing capacity of the beams are discussed.

分析中，着重研究了加固梁的截面应力、应变分布特点及可能出现的变化情况，给出了截面应力合力的计算公式并给出了计算框图，依据框图编程对影响加固梁正截面承载力的相关变化参量进行了计算分析并对影响极限承载力的主要因素进行了分析讨论。

According to the structure and characteristics of slip-form construction, the granulation tower project to be based on the top elevation from start to carry out the assembly of sliding-mode platform, with variable cross-section slope-walled tower, taking into account the technical characteristics of slip-form construction, the proposed construction here, the variable cross-section made the slopes with variable cross-section level (internal reinforcement unchanged), and then adjust the thickness to die or continue to slip.

根据工程结构及滑模施工特点，本造粒塔工程拟从基础顶标高处开始进行滑模操作平台的组装，塔壁斜坡变截面，考虑到滑模施工的技术特点，建议施工此处时，将斜坡变截面做成台阶变截面，然后再改模调整壁厚继续滑升。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。