查询词典 concrete

The closed ring confining truss is set along the periphery of the reticulated shell, and the stiffening truss is set in the middle single-layer shell which can take advantage of the architectural shape. These measures resolve the contradiction between overall stability and temperature stress, and also avoid the shell thrust act on the lower concrete structure directly. Besides, these measures simplify the design of the shell bearing and the concrete structure, and the cost of the concrete structure can also be saved.

网壳通过可径向滑动球铰支座与下部混凝土结构连接，网壳周边设置封闭环形约束桁架，中间单层壳体部分利用建筑凸肋造型设置加劲桁架，解决了保证整体稳定和减小温度应力之间的矛盾，同时避免了网壳侧推力直接传递给下部混凝土结构，简化了网壳支座及下部混凝土结构的设计，节约了混凝土结构的造价。

The main products are: WDB300t/h-600t/h type stability Soil Mixing Plant, SPXJ30t/h.50t/h type lime digestion broken machine, HZS, HLS series of concrete mixing plant, PLD series concrete batching machine, JS Series concrete mixer, non-contact, TJP-16M-type asphalt-contact balance beam irrigation, SS1232-type stone spreading machine, LRS6T / H-type cationic emulsified asphalt production equipment, and in accordance with customer's need to continuously introduce new products to meet customer needs.

主要产品有：WDB300t/h-600t/h型稳定土厂拌设备、SPXJ30t/h.50t/h型石灰破碎消解机、HZS、HLS系列混凝土搅拌站，PLD系列混凝土配料机、 JS系列混凝土搅拌机、非接触式、TJP-16M型接触式平衡梁沥青灌、SS1232型石屑撒布机、LRS6T/H型阳离子乳化沥清生产设备，并根据客户的需要不断推出新产品，最大限度地满足客户的需求。

Exploring a new technology for snow-melting and deicing of airports tracks is the research background of this project. Through a great amount of experiments, numerical value calculation and theory analysis, a great deal of experiment data are attained, and the resonance law of carbon-fiber reinforced concrete under various power and ice-layer thickness conditions was found.A low-energy concuming, low cost and high thermal effect CFRC road surface concrete structurel material was developed. The snow-melting and deicing mechanism of CFRC was analyzed in the point of view of energy conservation, and the electric-thermal resonance law of road surface structural materials to CFRC concrete materials was set up.

本项目以新型机场跑道的冬季融雪化冰为研究背景，通过大量实验、数值计算与理论分析，获得了碳纤维增强机敏混凝土在不同功率、不同冰层厚度下的响应规律和大量试验数据，找到了一种能耗低、热效高、成本低的CFRC路面混凝土结构材料，并从能量守恒的角度分析了CFRC混凝土融雪化冰机理，建立了研究路面结构材料的导热性能对CRFC混凝土材料的电热响应规律。

The slump and the time of slump are tested through the method of slump test, and the properties of concrete are calculated and analyzed. The study denotes that for C20 grade concrete, the value of the shear yield stress σ0 and plastic viscosity η is the smallest when the fly ash contains 20% weight of Portland cement; for C60 strength grade concrete, the value of plastic viscosity is the smallest when fly ash contains 20% weight of Portland cement and the value of the shear yield stress σ0 is the smallest when fly ash contains 30% weight of Portland cement.

利用改良坍落度筒的实验方法对坍落度和坍落时间进行测试，并进行相应的计算与分析，实验结果表明：强度等级为C20的混凝土，粉煤灰掺量为20%时粘度和屈服应力值最低；强度等级为C60混凝土，粉煤灰掺量为20%时，其粘度最低，而屈服应力值在粉煤灰掺量为30%时最低。

The influence of preparation of ceramisite concrete, fly ash and slag phosphorus compound additive on concrete properties of ceramisite concrete.

陶粒混凝土的制配，粉煤灰及磷渣复合掺和料对陶粒混凝土性能的影响，并且对陶粒混凝土的强度、收缩及徐变进行分析，保证陶粒混凝土的质量稳定性。4。

In 1933 a wet grinding and wet grinding slag slag concrete technology, the 20th century, the 50's this technology in large-scale concrete and precast concrete applications, due to the wet pulp mill tailings storage and transportation difficulties in the shortcomings of the technology has not been widely .

在1933年1湿磨和湿磨渣渣混凝土技术， 20世纪50年代该技术在大型混凝土和预制混凝土的应用，由于湿纸浆厂尾矿储存和运输困难的缺点，该技术还没有被广泛。

The experimental results show as follows: Slag could inhibit the cracking of concrete within the range of certain proportion. With the increase of slag proportion the self-shrinking of concrete increases, but the drying shrinkage of concrete decreases.

结果表明矿渣掺量在一定范围内时可抑制混凝土的开裂，混凝土的自收缩随矿渣掺量的增大而增大，干缩随矿渣掺量的增大而减小。

The experimental results show as follows: Slag could inhibit the cracking of concrete within the range of certain proportion. With the increase of slag proportion the selfshrinking of concrete increases, but the drying shrinkage of concrete decreases.

结果表明矿渣掺量在一定范围内时可抑制混凝土的开裂，混凝土的自收缩随矿渣掺量的增大而增大，干缩随矿渣掺量的增大而减小。

At present, many tall buildings have been built in China because of the constant development of economy, a lot of large-scale civil buildings such as marketplace, office building, industrial building need long-span and heavy load structure. So the traditional prefabricate structure has been already unable to satisfy the constant increasing need because of the shortcomings of short-span and low intensity concrete. If we don"t change the performance of the former prefabricate structure, it will be very swift that the prefabricate structure will be eliminated. Besides, the commodity concrete"s high development, the technology of concrete pump sending popularization and the development of nobonded presterss technology accelerate the shrink of prefabricate structure.

当前，我国由于随着经济的不断发展，高层建筑大量兴起，很多大型民用建筑如商场、写字楼、工业厂房等楼面都需要大跨、重载的楼板结构，因此传统的预制板由于适合跨度小、混凝土强度低等一些缺点，已无法满足不断发展的需要，如不改进原有预制构件的材料性能，将很快被淘汰，而且由于商品混凝土的飞速发展、混凝土泵送技术的推广及无粘结预应力技术的发展更加速了预制构件的萎缩。

In this paper,concrete filled steel tube short column with dumbbellshaped cross section is studied by finite element method,further analysis on the influence of concrete grade and steel ratio on confining force,and stress distribution and other properties of the core concrete in web cavity of the column under load is carried out.

国内外很早就对钢管混凝土的基本理论进行了大量的研究，我国对钢管混凝土结构的研究也极为重视[1～5]。自20世纪90年代以来，我国开始把钢管混凝土结构应用于拱桥中，由于钢管混凝土拱桥具有承载力高、跨径大、延性好、施工快捷，具有良好的综合效益，因此，在我国发展迅猛。

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。