查询词典 concrete

These tendons also can assume the moments at the end of the beams in ordinary condition. By way of these tendons, precast beams and columns can be assembled conveniently, and the joints and frame are monolithic and continuous. Consequently, compared with common reinforced concrete frames, this kind of frame systems possess higher reliability and solved the problems in the process of assembling Prestressed Concrete frames. Also it forms the framework of Prestressed Subassemblage concrete frame, and explores a new way for industrial production of prestressed structures.

后张预应力筋既可作为施工阶段拼装手段，又可在使用阶段承受梁端弯矩，构成整体受力节点和连续受力框架，克服了装配式节点受力可靠性差的缺陷，解决了预应力混凝土框架难以装配的问题，形成预制预应力混凝土装配整体式框架，开辟了预应力结构工业化生产的新途径。

But originally,we had not such kind of superstrong concrete technology,onsy used asphalt concrete to fill it as temporary filling.This could not solved concrete damaged problem,asphalt soften polluted the airplane tires,event to eh plane body.At the same time,floor and running road were also suffered from blace asphalt.This not only caused internal airline company unsatisafction,but also the external airline opinions.

便于工作原来没有如此超早强的混凝土技术，只能用沥青混凝土不断临时填充，这不仅不能彻底解决混凝土破损问题，而且在夏天沥青软化污染了飞机轮胎，甚至溅到机身上，同时停机坪及跑道内也到处是黑色的沥青痕迹/这不仅引起了国内航空公司的不满，而且国外航空公司也有意见。

As one kind of tignum, concrete is widely used in infrastructure construction in our country. The research of the concrete crack resistance is urgent need, which was due to the common existing of concrete structure crack.

混凝土作为一种建筑材料广泛地应用于我国基础设施建设中，然而混凝土建筑物出现裂缝的现象十分普遍，因此，对混凝土抗裂性能的研究显得尤为紧迫和突出。

Cast the underwater concrete with a soccer ball; the volume of the first batch of concrete is to be calculated, ensuring that the depth of the tremie embedded in the concrete for at least 1m and can fill the apertures at the bottom.

采用砍球法浇筑水下混凝土，首盘混凝土需用量由计算确定，保证首批混凝土浇筑后导管埋入混凝土中的深度≮1m，并能填充导管底部间隙。

Based on theory analyse, the three-dimensional finite elemental numerical calculation was carried out on joints for high strength concrete filled steel tubar column- Variable width reinforced concrete beam, the segregate calculational model of rebar steel tube and concrete was adapted..

基于理论分析，本文主要对钢管高强混凝土柱—变宽度钢筋混凝土梁节点进行了三维有限元数值模拟计算。

Based on the fire tests of one unstrengthened reinforced concrete beam and five reinforced concrete beams strengthened in flexure with carbon fiber sheets, the influence of fire insulation thickness, load ratio and strengthening ratio on the fire resistance of reinforced concrete beam strengthened in flexure with carbon fiber sheet has been discussed.

通过一根未加固钢筋混凝土梁，以及五根碳纤维布抗弯加固钢筋混凝土梁的三面受火试验，探讨不同厚度的厚涂型防火涂料、不同荷载比、不同碳纤维布加固量等因素对碳纤维布抗弯加固钢筋混凝土梁耐火性能的影响。

To study the basic mechanical performance of reinforced concrete column strengthened by circular steel jacket,a set of experimental work was carried out.1 contrast unstrengthened square reinforced concrete column and 10 reinforced concrete columns strengthened by circular steel jacket were tested under axial loading.

为研究圆形钢套管加固混凝土柱的基本力学性能，进行了1根未加固的普通钢筋混凝土柱和10根圆形钢套管加固的混凝土短柱在不同加固钢套管厚度及初始轴压比下轴心受压试验，初始轴力通过对未加固试件施加后张预应力来进行模拟；在试验研究的基础上，根据应变协调原则对加固后构件轴压承载力进行了数值分析。

The adding of mineral admixtures and high performance water reducer is the key factor of preparing self-compacting concrete, especially high strength and extra strength self-compacting concrete. Mineral admixtures have unsuperseded advantages in improving the workability and durability of self-compacting concrete.

加入优质矿物掺合料及高效减水剂是配制免振捣高性能混凝土特别是高强超高强免振捣混凝土的技术关键所在，由于优质矿物掺合料的&微集料效应&、&火山灰效应&、&滚珠效应&，使其在改善免振捣混凝土工作性，提高免振捣混凝土耐久性方面发挥了不可替代的作用。

Carbon fiber conductive concrete is kind of multifunctional cement based composite material by uniformly admixing short carbon fiber to concrete. Compare to the normal concrete, mechanical and conductive characters are greatly improved.

在普通混凝土中掺入短切碳纤维形成一种复合材料，与普通混凝土相比，其强度和导电性都有很大的改善，这种复合材料称为碳纤维导电混凝土。

The paper reviews the experimental results of chloride permeability of reinforced concrete cover based on ASTM C1202,and states that the resistance of ordinary marine concrete against chloride penetration is poor and the performance of concrete against chloride penetration can be remarkably improved by admixing with silica fume .

描述了按A STM C 1202方法试验研究保护层混凝土的氯离子渗透性能，指出以往普通港工混凝土的抗氯离子渗透性能较低，而掺入硅灰能显著提高混凝土的抗氯离子渗透性能。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了