Additionally , it deserves to mention that the theory and method above solves effectively the problems of affection to each other , such as affection of steel bundles to concrete creep , which is automatically counted in by the relationship 同时，有效解决了钢与混凝土相互影响，如钢索对混凝土徐变的影响，特别是在节段施工预应力混凝土结构中，因分批张拉引起先期索的预应力损失问题。
Aiming at control of crack of this structure , it was put forward that design of concrete structures with large longitudinal length should be integrated with actural material characteristics and construction process to realize a dynamic design 对长期试验的结果分析得到一些结论，针对超长预应力混凝土结构设计中的裂缝控制提出应结合混凝土的材料性能及实际施工过程，实现动态设计的建议。
With the study of the ability of unbounded ppc structure and the development of materials of unbounded ppc and the technique of light jack , the advantage of unbounded ppc structure has been widely recognized 随着对无粘结预应力结构性能的研究，无粘结材料供应充足和轻型张拉千斤顶技术的发展，以及无粘结预应力楼盖在高层建筑结构中的普及，无粘结预应力混凝土结构的优点已得到广泛的认可。
There are few softwares of prestressed concrete structure and even less of prestressed concrete cassion beam in this country . in this thesis , a prestressed concrete cassion beam computer aided design ( cad ) system is presented 目前国内公开的预应力混凝土结构方面的软件较少，预应力井字梁方面的软件更少，因此本文以预应力混凝土井字梁结构为对象编制了预应力混凝土井字梁计算机辅助设计系统。
Furtherly bearing capability of the beams is easy to calculate . results obtained from this method is compared with results from regulations for prestress concrete structure without bond and other methods suggested in other documentations 将采用此方法的计算结果与按照《无粘结预应力混凝土结构技术规程》中的公式及其它文献建议的方法进行了对比,表明本文推导的方法具有简单适用且误差小的特点。
Different from the construction of rc , the construction of pc needs high technique . there is a close relation between design and construction , and different manner of construction would result in different internal force of structure 预应力混凝土结构的施工不同于普通钢筋混凝土结构的施工，其对技术有较高的要求，且预应力结构在设计与施工上关系密切，施工方式的不同有可能造成结构内力的不同。
To testify the feasibility and suitability of this new - type prestressed concrete structure , lot of studies is made on the aspects of static performance , creep effect and dynamic performance , etc . whether from theory analysis or experimental study in this thesis 为验证这一新型预应力混凝土结构的可行性与适用性，本文从理论分析和试验研究两个方面对其静力性能、徐变效应和动力特性等多方面进行了研究。
The research indicates that the subassemblage and prestressed frame joint has good seismic performances and anti - crack behaviors , providing theoretical support and test data for the spreading and appling the subassemblage and prestressed concrete frames in our country 本文研究表明，预压装配式框架节点具有良好抗震性能和抗裂能力，为预压装配式预应力混凝土结构在我国的推广应用提供理论依据和试验资料。
According to the need for design and construction of prestressed reinforced concrete of jingzhou yangtze river highway bridge , c60 conctrete was mixed with superfine admixture and high workability agent , then it was speeding up construction progress for the bridge 摘要根据荆州长江公路大桥预应力混凝土结构设计、施工要求，采用掺入超细掺和料和高能外加剂配制c60混凝土，长距离、大高度泵送混凝土，为大桥建设加快进度，确保质量起到了作用。
The technical specification should be made to pre - pare for pre - stressed reinforced concrete hollow slab design , according to 《 code for design of concrete structures 》 and 《 technical specification of pre - stressed concrete structures with middle strength spiral ribs steel wires 》 根据《混凝土结构设计规范》及《中强螺旋肋钢丝预应力混凝土结构技术规程》 ，编制以中强螺旋肋钢丝为预应力受力筋的空心板的技术条件，为预应力空心板的设计奠定基础。
