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M and RCC concrete below the elevation and with an upstream conventional concrete slab structure for impermeabilization,the authors develop an inhomogeneous multi laminate media element model for seepage analysis of RCC dams based on the research of the numerical procedure of nodal virtual flux and the technique of draining substructure for drainage holes.

基于长江三峡大坝碾压混凝土方案左厂房 12号坝段上部为常态混凝土、下部为上下游面均设有常态混凝土的防渗结构型式的碾压混凝土坝的特点，借助于渗流场求解的结点虚流量法及排水子结构技术，并提出&排水孔开关器&的概念和渗流非均质成层材料单元模型，对坝中设计时存在的主要渗流疑虑问题、大坝的防渗与排水设施渗控方案的特性进行了数值分析研究。

Traditional block has the construction requirements of constructional column, tensile inarch bar, castinplace concrete ring beam, and it is diffic ul t for construction and to assure the construction quality, moreover, the period is long. However, the core column and beam of new concrete hollow block with mac roporous lightweight aggregate adopt Ushape block to instead of traditional te c hniques. This technology reduces the process of formwork and binding reinforceme nt, and has the characteristics of convenient operation, rapid construction spee d, strong crack resistance, lower cost, and good insulation properties, and so o n.

摘要］ 传统的砌块有构造柱、拉结筋、现浇混凝土圈梁等施工要求，施工难度大、施工工期长、且施工质量不容易得到保证；新型材料大孔轻集料混凝土空心砌块芯柱以及芯梁采用 U形砌块代替传统工艺要求，减少了支模、绑扎钢筋等工序，还具有使用方便，施工速度快，抗裂性强、节约成本、保温绝热性能好等施工优点。

The composite column with concrete filled steel tube inside can provide great advantages over either pure steel or reinforced concrete members, as a kind of composite component, it has been increasedly used over the recent years.

钢管混凝土芯柱是将钢管混凝土置于柱截面核心，外包普通钢筋混凝土，内设纵筋和箍筋，这种钢—混凝土组合构件在很多工程中得到了应用。

The article introduces the improvement of traditional jointcutting technology of cement concrete pavement and the application of inequally spaced skew contraction joint in the construction of cement concrete pavement .

介绍对传统的水泥砼路面切缝技术进行了改进，采用不等距斜缩缝技术，并在水泥砼路面施工中的应用。

In this paper, the baroclinic pole in baroclinic theory is supposed to be membrane-element subjected to shearing stress and normal stress in plain section. With the help of truss model, it meets the equation of two-dimension stress, Moire's strain corresponding equation and double-axis intenerate strain-stress relationship of concrete. It describes the load-behavior and working property of reinforced concrete combined torsion members in the whole load-deformation process.

本文将斜压场理论中的斜压杆表达成在平面内承受剪应力和正应力的钢筋混凝土薄膜元，借助桁架模型，满足二维应力平衡条件、莫尔应变协调条件和混凝土的双轴软化本构关系，揭示钢筋混凝土复合受力构件在受力-变形全过程中受力行为和工作性能，为研究复合受扭构件的变形行为打下了坚实的基础。

So we suggest in design of the jacketing steel reinforced concrete frames prestressed with bonded tendons for storey-adding, in the area of earthquake fortification intensity of degree 8, steel reinforced concrete frames prestressed with bonded tendons situated in Class II and III soil with the height of ground floor is 8.1m and the number of added stories is 2 to 4, multiplying coefficient of bending moment of column, detail of seismic design of beam, column, and joint, should conform to a higher one earthquake-resistant grade.

建议套建增层预应力钢骨混凝土框架结构设计时对于8度抗震设防区建造在II、III类场地土上的底层结构层高为8.1m，增层层数为2层到4层的原二级抗震框架其柱端弯矩增大系数及相应的梁、柱、节点的抗震构造措施应按一级抗震框架取用。

This article, based on the analysis of the data from the experiment on"double concrete beams", has shown the availability of using the"ladderlike concrete fabric" or"double steel" after treatment, and it has explained its properties of strength, crack and deflection.

本文根据对&双钢筋混凝土&小梁的试验资料的分析，提出了在普通钢筋混凝土受弯构件中采用经过构造处理后形成的&梯格状钢筋网&即&双钢筋&的可行性。阐述了双钢筋构件的强度、裂缝及变形的特点。

After concrete structure is fired, the fire temperature can be judged by the analysis of the melting point of damage material, the surface color of concrete, the damage degree and the metallograph of reinforced bar.

混凝土结构遭受火灾后，通过对被燃烧物质的熔点，混凝土表面颜色、损伤程度以及钢筋的金相分析，可判定火灾的温度。

A state-of-the-arts of the mixed gentle MgO of mass concrete technique in dam engineering are reviewed. The merits and defects of the traditional analytic method are discussed. According to the conception of microlevel or mesolevel mechanics and multi-phrase porous media, the study of concrete thermal stress with mixed gentle MgO are generally carried out in this dissertation.

本文综述了大体积混凝土MgO筑坝技术发展现状，在深入研究MgO膨胀机理的基础上，对现有计算方法进行了探讨，利用细观力学的随机颗粒模型方法和基于Biot有效应力的多场耦合／半耦合理论对掺MgO微膨胀混凝土结构温度应力问题进行了系统的研究。

Nanning International Convention and Exhibition Center is a building of large-scale and complex structure system. Multiplicate types of structures and new technologies are applied in the project, including prestressed concrete, reinforced concrete, spatial truss, membrane and structural transfer floor etc.

摘要］南宁国际会展中心是一个规模宏大、结构体系复杂的大型建筑，在整个结构方案中，综合使用了多种结构形式和新技术，包括：预应力混凝土结构、钢筋混凝土结构、空间网壳结构、膜结构和结构转换层等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。