The paper mainly analyses the prestressed steel box girder.
本文主要对预应力钢箱梁进行了振动理论分析。
The stressed-arch frame is a new type of prestressed steel structure system.
张拉弦钢拱架结构是一种新型的预应力钢结构体系。
The prestressed steel roof of Nanjing railway station is suspended by cables.
南京火车站主站房预应力钢屋盖采用桅杆斜拉索悬挂钢结构型式。
The location of prestressed steel beam deviation exactly what impact on the structure.
而预应力钢束位置的偏差究竟对结构产生怎样的影响。
The multi - prestressed steel latticed shell is a new spacial structural system of high efficiency.
多次预应力钢网壳是一种新型高效空间结构体系。
The non—prestressed steel bars in ppc beams endure alternate stress under the repeated service loading.
部分预应力混凝土梁中的非预应力钢筋在反复运行荷载作用下承受交变应力。
The stress corrosion of cold drawn prestressed steel wire hasn't been paid full attention to for a long time.
长期以来，冷拉预应力钢丝的应力腐蚀问题并未引起人们的足够重视。
This paper puts forward a new system of multi-prestressed steel lattice shell structure for large span space roof.
本文对大跨度空间屋盖提出了一种多次预应力钢网壳结构新体系。
At the same time my company in North China are building high-strength prestressed steel mill biggest distributor thread.
同时我公司是华北地区建筑高强度预应力精轧螺纹钢筋最大的经销商。
The new-type double layers wheel shape beam strings prestressed steel roof truss was used in Guangzhou Nansha Gymnasium.
广州南沙体育馆屋盖采用了新型的双层轮辐式空间张弦预应力钢屋架。
The prestressed steel bar is drawn when there is uniform temperature of the main beam body, so that the prestress loss can be decreased.
在梁体温度均匀时张拉预应力钢束，可减少结构的预应力损失。
The article studies for the future of prestressed steel beam construction error on the structural effects of the accumulation of information.
本文对此进行研究，为今后的预应力钢束施工误差对结构影响积累资料。
Furthermore, the formulation of statistical properties of the random internal forces of the cable - prestressed steel trusses is put forward.
给出了拉索式预应力钢架随机内力统计特性计算表达式。
Based on ANSYS programs, the nonlinear finite element models of two-span prestressed steel-concrete continuous composite beam were established.
本文基于大型有限元软件ANSYS，建立预应力钢-混凝土两跨连续组合梁的非线性有限元分析模型。
Element combination form and self-balanced prestressed steel structure is a new spatial system composed by prestressed cable and strut elements.
“单元拼装式自平衡预应力空间钢结构”是由施加预应力的基本单元构成的新型空间结构体系。
For the relatively smaller loads, the economical height-to-span ratio scopes of space steel trusses and space prestressed steel trusses can be found.
对于相对较小的荷载，可以找到立体钢桁架及立体预应力钢桁架的经济高跨比范围。
By study of large amount of computational results, the optimal heights of space steel trusses and space prestressed steel trusses of several spans are got.
通过对大量计算结果的研究，得出了几种跨度下立体钢桁架及立体预应力钢桁架的最优高度。
The main measure taken is the application of the five stage design to prestressed steel structure, in which high strength strands are used as prestressed tendons.
主要措施是采用以高强度钢绞线作为预应力拉杆的预应力钢结构五阶段设计。
The main bridge of Dalian Quanshui No. 4 Bridge is a box-section prestressed steel concrete two-hinged flat arch bridge with 88m span and 1/12 rise-to-span ratio.
大连市泉水居住区四号路跨东北路桥主桥是跨度为88米，矢跨比1／12的箱形截面预应力钢筋混凝土双铰坦拱。
The material properties of prestressed steel strand post high temperatures are studied by experiments and various cooling patterns are considered in the experiments.
试验研究预应力钢绞线在经历高温作用并冷却至室温后的力学性能。
By analysing the force of pre-stressed steel in prestressed concrete bending component, the change method of prestressed steel in prestressed concrete are introduced.
通过对预应力混凝土受弯构件的受力分析，提出了预应力混凝土受弯构件中预应力钢筋代换的基本方法。
The fabrication and calculation of the prestressed steel girder is presented in this paper, and its application and economical advantage is illustrated by an example.
本文介绍了这类预应力钢梁制造方法和计算方法，并通过工程实例说明其应用方法和经济效果。
The materials′properties of prestressed steel wire post high temperatures were studied by experiments and various cooling patterns were considered in the experiments.
试验研究了预应力钢丝在经历高温作用并冷却至室温后的力学性能。
A prestressed steel girder is regarded as composite structure of girder and tendons through establishing prestressed steel cable of high strength in the steel girder.
预应力钢梁是在普通的钢梁内设置高强度预应力钢索而形成的索梁共同受力的组合梁桥。
In which one of them was common reinforced concrete structure, and the other used prestressed steel reinforced concrete (PSRC) in bottom chord of the transfer structure.
其中一榀模型为普通钢筋混凝土结构，另一榀模型在底部转换梁施加了预应力，并在底部转换梁及部分杆件采用了钢骨混凝土。
The current applied fields of external prestressing mainly includes externally prestressed concrete bridge, structure rehabilitation and prestressed steel structure, etc.
体外预应力技术的应用领域现阶段主要包括体外预应力混凝土桥梁、结构的体外预应力加固和预应力钢结构。
To select different initiative stress can get different relaxation rate of prestressed steel strand and find out the relation between initiative stress and relaxation rate.
对预应力钢绞线选用不同的初始应力，得到不同的松弛率，从而找出初始应力与松弛率的关系。
Although the cause has some relation with construction operation, yet the major factor should be due to deficiency of the theory and improper design of the prestressed steel.
尽管存在施工方面的原因，但结构设计理论不足，是预应力混凝土箱梁开裂的主要原因。
Moreover, due to the non prestressed steel and prestressed steel, and the different amount of using steel in pulling and pressing areas, so the restrain of steel is different.
此外，由于梁纵向有非预应力钢筋和预应力钢筋，且拉、压区用钢量不同，所以钢筋约束不同，对梁的挠度影响较大。
Optimizing a prestressed concrete T-frame beam, selecting reasonable effective height of section and prestressed steel area can improve the beam's performance and reduce the cost.
对预应力混凝土T梁进行优化设计，选取合理的截面有效高度及预应力筋截面面积，可以提高梁的承载能力，降低工程造价。
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