In this thesis , it is analyzed theoretically the steel bar layout pattern , the prestress loss , the concrete stress , and the discipline of the deformation and the fracture forming of structures of the partial prestress concrete frame beams , which is widely used in modern civil engineering 本文从理论上分析了现代建筑工程中广为采用的部分预应力混凝土框架梁的布筋方式、预应力损失、混凝土应力、结构变形和开裂规律；导出了具有一般意义的预应力锚固损失以及梁的长期挠曲变形计算公式。
The contents include as follows : the influencing factors of the displacement ductility factor of the unbonded partially prestressed concrete frame structures , such as stirrup reinforcement characteristic value , nominal shear span ratio , axial compression ratio , the appearing order of plastic hinges and partial prestressing ralio ( ppr ) are discussed . the formula of displacement ductility factor of the unbonded partially prestressed concrete frame structures is suggested by regression analysis . with regard to the aseismic design and the request of ductility and energy dissipation , the restriction of the flat - beam / column sectional size and aseismic reinforced design are discussed 本文主要包括以下内容：讨论了配箍特征值、名义剪跨比、轴压比、塑性铰出现顺序、预应力度等因素对无粘结部分预应力混凝土框架位移延性系数的影响，回归了考虑影响因素的位移延性系数计算公式；对无粘结部分预应力混凝土扁梁框架结构，阐述了抗震设计对扁梁、柱截面尺寸的要求与限制；对满足延性和耗能要求的无粘结部分预应力混凝土扁梁控制截面抗震配筋进行了探讨；通过对无粘结部分预应力混凝土扁梁梁端的受力分析，改进了以往扁梁梁端扭矩设计值计算公式。
Partially prestressed concrete structure has been widely used in the field of civil engineering . the deformation is very important for prestressed concrete members , for they are thinner than those of reinforced concret owe to the adoption of hign - intension material and developed technic of design and construction . at present , there are some formulae for deformation in the criterion of many countries . mostly there are 3 methods in use : double linearity method , method of valid inertia and curvature integral calculus method . this article will discuss the influence of material , spa , construction form , and adjust the formula for stiffness of gb50010 - 2002 to a new uniform formula for deformation 在土木工程领域，部分预应力混凝土结构因其良好的跨越能力和经济性而得到了广泛的应用，并发挥了巨大的作用。由于采用了高强度材料并进一步改善了设计和施工技术，预应力混凝土构件一般比普通钢筋混凝土构件更为细巧，因此，挠曲变形问题显得尤为重要起来。目前，各国规范对于部分预应力混凝土构件的变形计算均有相应的公式，变形计算的关键是刚度的计算。
Abstract : in this paper , six partially prestressed concrete special type slab bridge models with unbonded tendons are introduced . from the experimental results , the equation that calculates the unbonded tendon stress increment is obtained . the computed results show a good agreement with the tested results 文摘:介绍了6块无粘结部分预应力混凝土异形板桥的静载试验，建立了部分预应力混凝土异形板桥中无粘结筋应力计算公式，并将所建立经验公式的计算值与试验值进行了比较。
So , based on the previous research results , the aseismic design theory of this structure is analyzed , the low - cyclic reversed loading tests of two unbonded partially prestressed concrete flat - beam frame structures are conducted and the method of aseismic design is discussed in this dissertation 本文在总结前人工作的基础上，分析探讨无粘结部分预应力混凝土扁梁框架结构抗震设计理论，对两榀无粘结部分预应力混凝土扁梁框架进行低周反复荷载试验以研究分析该结构形式的抗震性能。
