Railway bridge and culvert works set high demands on leakage, seepage and crack control.
铁路桥涵工程对防漏、防渗、防裂要求极高。
Based on the theoretical study, the reasonable design and construction ways are presented for crack control.
本文通过对大体积砼裂缝成因的理论研究，提出了合理的裂缝控制的设计和施工措施。
The formula of temperature stress by analyzing the cause of the the thermal crack control of concret is given.
通过对混凝土温度裂缝机理的分析，总结了混凝土温度应力的公式。
An equation to calculate concrete diaphragm walls bending moment is deduced based on the crack control limit value.
推导了由裂缝控制限值反算地下连续墙弯矩的计算方法。
The measures of crack control in mass concrete of cap influence the quality of the bridge and service period directly.
大体积混凝土承台裂缝控制措施好坏直接影响到桥梁质量及后期工作。
Wall crack control is a complex problem that requires the coordination of materials, design, construction and other aspects.
墙体裂缝的控制是一个复杂的问题，需要材料、设计、施工等方面的相互协调、共同配合。
The causes of the structure crack of reinforced concrete are complicated. In structure design, the crack control should be taken into account.
钢筋混凝土结构裂缝产生的原因复杂，应在结构设计时即予考虑，加以控制。
The carrying capacity of bed slab was analyzed in each condition, further considers the influence of temperature stress and the crack control.
对各种最不利情况进行承载能力分析，进一步考虑温度应力的影响及裂缝的控制。
Therefore, the checking formula for the designing method is consistent with the crack control width and the designing method is safe and reliable.
因此，该设计方法的验算公式与其相应的裂缝控制宽度是相辅相成的，设计方法也是安全可靠的。
This paper states the temperature stress and load value, puts forward the conformation measures of crack control in structural design and construction.
本文论述了温度应力、温度荷载的取值，并根据实际情况提出了结构设计和施工时裂缝控制的构造措施。
In order to guarantee drawing rightly for unbonded prestressed concrete structure, crack control measures before drawing are illuminated in this paper.
为了保证无粘结预应力砼结构能顺利张拉，本文同时也论述了无粘结预应力钢筋砼结构能顺利张拉前的裂缝控制。
The paper gives the formula of temperature stress by analyzing the cause, classification and control mechanism of the the thermal crack control of concrete.
通过对混凝土温度裂缝分类、成因与控制机理的分析，总结了混凝土温度应力的公式。
The crack control methods of analysis and design in the super-length reinforced structure have been tested in the project, and reached the effect to be hoped.
对钢筋混凝土结构的裂缝控制实现超长设计的分析和设计对策，经过工程验证，达到了预期的效果。
Crack control is of great significance in reinforced concrete (rc) structures. but the control of crack width and length had not reached an ideal state as yet.
裂缝控制在钢筋混凝土结构工程中至关重要，但对于裂缝宽度、高度等的控制至今并没有取得理想的效果。
This article came from the structure design of concrete structure discussed the crack problem, and puts forward the main construction measures for crack control.
本文从建筑结构设计上来探讨了混凝土结构所存在的裂缝问题，并提出了控制裂缝的主要施工措施。
This paper analyses the mechanism of corrosion of steel bars, interprets the theory of concrete structure crack control and poses measures of narrowing the cracks.
分析了混凝土结构的受力钢筋腐蚀机理，阐述了钢筋混凝土结构的裂缝控制理论，以及减小钢筋混凝土结构裂缝宽度的措施。
The application of the technology of adding both polyacrylic fiber and lightly sintered magnesia in concrete played a remarkable role in crack control of concrete facing slabs.
聚丙烯纤维和轻烧氧化镁双掺技术的应用，在面板混凝土的防裂中发挥了明显的作用。
The humidity would diffuse a large scope as there are cracks in the cement-based composite, resulting in the increase of shrinkage stress which is not benefit for crack control.
当有裂缝存在时，湿度扩散的范围更深、更广，相应的湿度应力则会更大，不利于裂缝的预防与控制。
The technical measures of crack control are presented from materials, design, construction and maintenance of structure. It can be referred for engineers in design and construction.
提出从材料、设计施工和维护方面进行裂缝控制的技术措施。
Abstract : the temperature cracks of mansonry structure in the body of attique were observed and analyzed, a simple, reasonable and highly effective method of crack control is given.
文摘：对砖混结构顶层墙体普遍存在的温度裂缝进行观测、分析，探讨其开裂原因，并提出了简单、合理、有效的处理方法。
Some effective measures have been taken in the placement of concrete to control the occurrence of crack and to ensure the construction quality and appearance quality.
混凝土的浇筑采取了有效的施工措施，控制了裂缝的产生，保证了混凝土施工质量及表面外观质量。
The crack grouting diffusion radius is the basic gist of the grouting construction design and grouting craftwork control.
灌浆扩散半径是进行灌浆结构设计和灌浆工艺流程控制的基本依据。
The paper puts forward the means for the control of plastic concrete crack based on the different reasons.
文章根据大坍落度混凝土裂缝产生的不同原因，提出了裂缝控制的措施。
By experiment and production practice, it was pointed out that such crack could be prevented by control of pick forming, heat treatment and grinding process.
试验与生产结果表明，提高粗加工挑扣成形质量、改善热处理组织、控制磨削工艺可以有效地防止磨削裂纹的产生。
In this thesis based on engineering examples, some Suggestions were put forward to control crack by finite element analysis of floor slabs.
本文结合工程实例，对楼板的温度裂缝进行了有限元分析，并提出了一些预防裂缝的建议。
A big technical problem for mass concrete structures during pouring is how to control crack expansion.
大体积混凝土在浇筑中的一个重要技术课题是控制裂缝扩展。
In the processing process in the bearing ring, through to the grinding crack mechanism analysis, the effective measure of control grinding crack was adopted.
在轴承套圈的磨加工过程中，通过对磨削裂纹机理的分析，采取有效的措施控制磨削裂纹的产生。
Based on the structural non load effect, the causes of common concrete structural crack in tall buildings are analysed. The control method of crack development is discussed.
从结构的非荷载效应着眼，通过对目前高层建筑砼结构中常见的裂逢成因分析，提出控制裂缝扩展的相应对策。
It puts forward a conception of weld inclusions crack index so as to better control quality of weld seam.
为了更好地控制焊缝质量，提出了焊缝夹杂物裂纹指数的概念。
It puts forward a conception of weld inclusions crack index so as to better control quality of weld seam.
为了更好地控制焊缝质量，提出了焊缝夹杂物裂纹指数的概念。
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