1) water-reducing agents/ultralong struc-tures of concrete
减水剂/混凝土超长结构
2) super-length concrete structure
超长混凝土结构
1.
The shrinkage value of super-length concrete structure was studied on this paper by the relevant concrete shrinkage literature.
本文通过对国内外混凝土收缩研究成果的总结归纳,给出超长混凝土结构收缩当量温差的取值计算方法,希望能为同类工程提供有益借鉴。
2.
Super-length concrete structure would be acted by large temperature stress in the varied temperature during construction.
利用膨胀混凝土在结构中产生一定的预压应力来抵抗混凝土收缩变形产生的拉应力,从而防止或减小超长混凝土结构在施工阶段,由于温度的变化产生较大的温度应力引起的收缩裂缝,通过合理布置膨胀加强带以取代后浇带,从而达到连续浇筑的目的。
3.
With more and more super-length concrete structure buildings with the pile foundation have been constructed, the temperature stress of super-length concrete structure has become one of vitally important research topics in structure design This paper elaborates the reason of cracking, and the related theory of pile lateral direction stiffness.
随着桩基基础超长混凝土结构广泛涌现,对这种超长混凝土结构的温度应力分析己成为结构设计中重要的研究课题之一。
3) super-long concrete structure
超长混凝土结构
1.
On design and construction of super-long concrete structure without crack;
超长混凝土结构不设缝的设计与施工
2.
It introduces technical principle on applying for expansion-reinforcing band in super-long concrete structure and illustrates construction points combined with specific engineering, and summarizes its merits in application.
介绍了在超长混凝土结构中应用膨胀加强带的技术原理,并结合实际工程,阐述了膨胀加强带的施工技术要点,总结了膨胀加强带在超长混凝土结构中应用具有的优点。
4) over-long concrete structure
超长混凝土结构
1.
On the setting of the expansion-reinforcing band in the over-long concrete structure jointless construction
超长混凝土结构无缝施工中膨胀加强带的设置
2.
As the development of construction, more and more over-long concrete structures appeared recently.
随着我国建设的发展,出现了越来越多的超长结构,为了避免伸缩缝带来的诸多不便,这类结构大多采取了不设伸缩缝的方案,这样,如何解决超长混凝土结构中由于温度变化和混凝土收缩引起的裂缝就成为一个亟待解决的问题。
5) super long concrete structure
超长混凝土结构
1.
Design and construction of late poured band of the super long concrete structure
超长混凝土结构后浇带的设计与施工
2.
According to cracks produced in super long concrete structure practical design measures are proposed from setting the late poured band, reducing temperature shrinkage stress and other aspects in order to provide references for designers.
根据具体工程设计实践和体会,注重结构概念设计,简要分析了温度收缩裂缝的基本特点,重点介绍了对超长混凝土结构如何有效设置后浇带及其他一些控制和抵抗温度收缩应力的具体设计措施,可供设计人员借鉴参考。
3.
For the super long concrete structure.
超长混凝土结构设计时都会考虑到混凝土温度变化及收缩影响,根据温度应力计算结果进行抗裂设计。
6) overlong concrete structure
超长混凝土结构
1.
Controlling of the temperature stress of overlong concrete structure based on breathing method
基于可呼吸方法的超长混凝土结构温度应力控制
2.
This paper analyzes formation principle of temperature crack in overlong concrete structure, and elaborated the theory of and effective measures for "strengthening the anti-cracking ability", "decreasing restrain conditions" and "avoiding cracks".
分析了超长混凝土结构温度裂缝的形成机理,提出了防止和减轻温度裂缝的"抗""放""防"理论及各项措施。
3.
The characteristic of overlong concrete structure is that its length exceeds the code limits and the stress caused by temperature and shrinkage is rather large, which usually brings crack in structure.
超长混凝土结构的特点是长度超过规范限值,温差及混凝土收缩引起的应力较大,常常导致结构开裂,有时裂缝较宽,影响正常使用,所以温度及收缩裂缝是超长混凝土结构工程中急需解决的关键问题。
补充资料:高效减水剂
分子式:
CAS号:
性质: 一般可分为萘磺酸-甲醛缩合物(简称萘系减水剂)和磺化三聚氰胺甲醛缩合物。它们分别由工业萘、三聚氰胺,经一定的酸、碱性条件下缩聚而成。其性质属表面活性剂类;具有吸附、分散湿润、润滑等作用。使用于混凝土中能大量减少混凝土拌合用水,减水率均在15%以上,故统称高效减水剂。萘系减水剂为褐色粉状固体。三聚氰胺为无色油状液体。均能很好溶于水中,使用最普遍的是萘系减水剂。
CAS号:
性质: 一般可分为萘磺酸-甲醛缩合物(简称萘系减水剂)和磺化三聚氰胺甲醛缩合物。它们分别由工业萘、三聚氰胺,经一定的酸、碱性条件下缩聚而成。其性质属表面活性剂类;具有吸附、分散湿润、润滑等作用。使用于混凝土中能大量减少混凝土拌合用水,减水率均在15%以上,故统称高效减水剂。萘系减水剂为褐色粉状固体。三聚氰胺为无色油状液体。均能很好溶于水中,使用最普遍的是萘系减水剂。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条