Least length of pretensioned prestressed slab and calculation of steel strand s discount strength;
先张预应力混凝土板最小板长及钢绞线折算强度计算方法
Combined with the practice of pretensioning prestressed voided slab,the paper discussed the construction repair,pouring and curing etc.
根据先张法预应力空心板施工实践,主要从先张法预应力梁板的施工准备、张拉、浇筑、养生等方面进行了探讨,并提出几点注意事项。
Combining the actual situation of site, guided by the principle of economy, the article introduces the design and manufacture of production line of long line pretensioning prestressed concrete crane girder, the manufacture and installation of template, the stretch and release of prestressing bar, the concrete depositing and the steam curing in detail.
结合现场实际情况,遵循节约、经济的原则,对长线先张法预应力混凝土吊车梁生产线的设计和制作,模板制安,预应力筋张拉、放张,混凝土浇筑、蒸汽养护等关键技术做了较为详细的介绍。
Construction of prestressed precast beam with pretension;
先张法预应力预制梁板施工
The text briefly introduces structure design of pretension girder strethching pedestal,design and calculation of main component.
以先张法制梁为例,简要介绍先张梁张拉台座结构设计,主要构件的设计计算。
Combined with the construction practice,the paper introduced the design idea of concrete bar dowel for pretensioned grooved stretching bed etc.
根据施工实践,简要地介绍了先张法槽式张拉台座中的砼传力柱的设计思路。
Calculation results from the above three approaches are compared and analyzed and structural security is accordingly appraised,which provides a valid method and approach for tension stress analysis of pretensioned skew beam.
由于斜梁理论具有一定的局限性,故借助ANSYS软件对其进行建模得到应力精确值,并将三者的计算结果进行比较分析,借此对结构的安全性进行评价,以期为先张斜梁的张拉应力分析提供了有效的方法和途径。
Because the structural design requires the base pretensioned and post-grouting,the embedded part of the base used bolts,anchor plate,corrugated pipe and injected pipe.
深圳会议展览中心钢结构工程采用高强度、大直径预应力锚栓,用以锚固铰支座和拉接端头梁,由于设计要求先张拉后灌浆,所以预埋材料涉及了锚栓、锚板、波纹管、注浆管等。
Process and technology control of making the pre-tensioned prestressed hollow slab;
先张法预应力空心板制作的工序与工艺控制
In this thesis, the construction technique, safety and quality control method of manufacture are researched for the spot-manufacturing simple-supported T beam with pre-tensioned prestressed durability concrete, under the conditions of serious cold, low pressure, a lack of oxygen, strong radiation and special weather on the Qingzang Plateau.
本文的主要内容和关键技术为：研究在青藏高原高寒、低压、低氧、强辐射等特殊气候条件下现场预制铁路先张法预应力耐久性混凝土简支T形桥梁的施工工艺及施工安全质量的控制方法。
The application of pretensioned system prestressed technology in Yi River bridge construction;
先张法预应力技术在伊河特大桥施工中的应用
The construction technology of pretensioned system prestressed bridge plate and application examples;
先张法预应力桥梁板施工工艺及应用实例