查询词典 concrete

In target ing using concrete optimum , heat preservation, humidity preservation, twice vibr ations, twice compactions, strictly controlling the temperature and so on, the a ppearance of split can be avoided and the durability of concrete can be improved .

分析和总结了预拌混凝土现浇楼板裂缝产生的原因、处理方案及防治措施，综合采用混凝土试配优化、保温保湿养护、二次振捣、二次模压、严格控温等施工措施，可有效地避免和减少裂缝出现，提高混凝土的耐久

A total of 19 products(98 mixes) were manufactured in precast concrete factories and one ready-mix concrete company around the UK,and tested for compliance with type-testing to current British Standards,glass reactivity in alkali by the ASR test and advanced chemical analysis includ...

这一研究项目被认为是迄今对废弃玻璃应用于实际混凝土产品中研究范围最为广泛的，共在全英各地的多个预制混凝土生产企业和一个预拌混凝土企业进行了19个工业性试验子项目，配制了98个实际玻璃混凝土产品，并对这些产品依据现有英国国家标准进行了产品适应性能和碱骨料反应测试。

The First Engineering Company has now been accredited with the qualifications of Class A Gontractor for Port and Waterway Engineering Works and Municipal and public Works and Class A Specialty Contractor for Sleel Structures and Foundation Works.The Company has also been accredited with the qualifications for construction of building works and bridge works,production of ready-mix concrete and fabrication of concrete units.The Company is accredited with the certificate issued by the Commission for Ratification of National Laboratories of China.The Company has also the qualifications of Class A for testing and measurement of marine works and qualifications of Class B for testing and measurement of road works vested by the Ministry of Communications of China.

具有港口与航道工程、市政公用工程总承包一级、钢结构、地基与基础工程专业承包一级，以及房屋建筑工程、桥梁工程、预拌商品混凝土及混凝土构件的施工资质；取得中国合格评定国家认可委员会实验室认可证书、交通部甲级水运工程、乙级公路工程试验检测资质、天津市交通建设工程试验检测机构资质证书；1998年以来公司先后通过了ISO9001质量管理体系、ISO14001环境管理体系、OHSAS18000职业安全健康管理体系认证；荣获&全国五一劳动奖状&、&全国优秀施工企业&、&全国用户满意施工企业&、&全国质量安全管理先进单位&、&中国工程建设社会信用AAA证书&、&全国守合同重信用企业&、&天津市优秀企业&、&全国模范职工之家&、连续23年获得&天津市守合同重信用企业&等荣誉称号。

It studies concrete language varieties under the concrete context of situation and context of culture, and integrates ideational meaning, interpersonal meaning and textual meaning organically to explain the nature and use of language. In essence, it takes both intralinguistic and extralinguistic meaning into consideration, which is the guarantee in achieving the meaning transferring successfully.

语域理论将具体的语言变体放在具体的文化语境和情景语境中进行研究，将语言的概念意义，人际意义及语篇意义有机地结合起来，进行理解和解释，实际上就是同时兼顾了语言内部的纯语言意义与语言的社会意义与功能。

The technique of prestressed concrete is used more and more widely because of its advantage in the field of concrete.

后张预应力混凝土技术因其在现浇混凝土中的优势而得到越来越多人们的广泛应用。

In this respect, prestressed concrete is superior to reinforced concrete, but it has other limitation.

这一方面，预应力混凝土比钢精混凝土优越，但它也有其他限制因素。

This thesis mainly analyzes the microstructure of concrete with the application of the image analysiss system with polarizing microscope and microhardness testing machine aiming to probe the relationship between the microstructure of concrete and its properties.

本文主要采用偏光显微镜图像分析系统和显微硬度仪两种测试分析手段研究混凝土的显微结构，试图探寻混凝土显微结构与性能的关系。

To reflect the mechanical behavior of a real pipe bearing in ner water pressure,a loading method by inner water pressure is used in this test.The loading equipment and a part of measuring devices are d esigned and made by ourself.Compare tests and theory analysis have wor ked out for the performance of the steel fiber reinforced concrete pip e,the reinforced concrete pipe,the pipe with steel fiber reinforced co ncrete and steel bar under the inner pressure.

为真实反映混凝土压力管在内水压力作用下的受力状况，采用自行设计制作的一套加载设备和部分测试设备，对钢纤维混凝土压力管、钢筋混凝土压力管及配筋钢纤维混凝土压力管，进行了内压性能对比试验研究及理论分析。

The main research contents are as follows:1. Through massive calculation, analysis and comparison, sum up the similarities and differences between the special-shaped cross sections and rectangular cross sections in mechanical features, between reinforced concrete special-shaped columns and rectangular columns in load-bearing capacity, ductility performance and provide necessary basic concepts and data for further understanding the characteristics of the special-shaped columns;2. Through massive elastic calculations and elasto-plastic analysis, under the preconditions of satisfying the code's requirements for axial compression ratio, limit value of lateral displacement and load-bearing capacity of normal section,oblique section and beam-column joint, under circumstances of different intensity of earthquake, structure dead weight, sort of site and column grid bay dimension, the variation regularity of maximum suitable height of structure, and thus sum up the maximum suitable height of structure for code for the purpose of macro-control while deciding the design scheme;3. Make a preliminary study on the stress feature of reinforced concrete special-shaped column and Z-shaped column of which the ratio of limb length to limb thickness is between 4~5 ,and the preliminary design method is suggested;4. Through elato-plastic time history dynamic analysis of typical projects, check up the weak storey of the special-shaped column structure and yielding, breaking and collapse mechanism to satisfy the earthquake resistant requirement to buildings of remaining stand under strong earthquake;5. Derive for project use simplified calculation formula of vibration period, suitable vibration period, suitable rigidity of special-shaped column structure through theoretical analysis, and provide an easy and practical method for deciding the structure scheme economically, safely and reasonably;6. Based on the study achievements in theory and massive analysis and calculations of this paper, sum up the regularities of inner force, deformation of special-shaped column structure and seismic conceptual design, and thus the suggection of seismic design of special-shaped column structures is presented.

本文研究的主要内容如下：通过大量的计算、分析和对比，总结出异形截面与矩形截面在力学特性、钢筋混凝土异形截面柱与矩形截面柱在承载能力、延性性能等方面的异同，为深入了解异形截面柱的特点提供必要的基本概念和数据；通过大量的弹性及弹塑性计算分析，在满足规程对轴压比、侧移限值及正截面、斜截面、节点承载力抗震验算要求的前提下，在不同抗震设防烈度、结构自重、场地类别及柱网开间尺寸情况下最大适宜高度的变化规律，并在此基础上总结归纳出异形柱结构的最大适用高度规定，可用于规程，以便于在确定方案时起到宏观控制的作用；对肢长与肢厚比在4～5的钢筋混凝土异形截面柱及Z形柱的受力特点进行初步探讨，提出初步的设计方法；通过对典型工程的弹塑性动力时程分析，检验异形柱结构的薄弱层及屈服、破坏、倒塌机制，以达到建筑物大震不倒的抗震设防要求；通过理论分析，推导出异形柱结构自振周期，以及适宜自振周期、适宜刚度的工程实用简化计算公式，为经济、安全、合理地确定结构方案提供简便实用的方法；在本文理论分析、计算以及大量的研究成果基础上，总结归纳出异形柱结构内力、变形的规律及抗震概念设计内容，并在此基础上提出异形柱结构的抗震设计建议。

Three-dimension finite element floating mesh method is used to calculate the temperature field and thermal stress of 6Aa roller compacted concrete gravity dam section and F6 fault concrete tuck in this paper.

本文用三维有限元浮动网格法对6Aa坝段及基础部位F6断层混凝土塞的施工过程进行温度场和温度应力仿真计算，计算的基本理论是热传导理论和弹性理论以及相应的有限元计算公式。

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