Analysis of beams prestressed with unbonded tendon is much more complicated than that of bonded concrete beams.
无粘结预应力混凝土梁的分析要比有粘结混凝土梁复杂得多。
As to bonded concrete beams, complete bond between steel and concrete is always assumed, so analysis can be performed based on plane section hypothesis.
对于有粘结混凝土梁，一般认为钢筋和混凝土之间理想粘结，从而可基于平截面假定进行分析。
P an external non-bonded tendon is a tendon situated outside the original concrete section and is connected to the structure by anchorages and deviators only.
体外无粘性筋是指安置在原始混凝土结构外部，只能通过锚固和变向装置连接至结构上的钢筋。
The failure modes of concrete beams prestressed with bonded FRP tendons can be classified into three types: the balanced failure, compression-controlled failure and tension-controlled failure.
国内外已有试验研究表明，有粘结预应力FRP筋混凝土梁的破坏模式包括界限破坏、受压破坏与受拉破坏三种。
It seems reasonable in practice to increase the safety margin of unbonded members by 15% in comparison with the bonded prestressed concrete bending members.
工程设计实践中将无粘结预应力混凝土梁的安全贮备比有粘结预应力的计算结果提高15%有一定的合理性。
In the bonded experiments, the concrete surface treatment; sheet material quantity and material kind were studied.
在片材与混凝土的粘贴试验中，分别对混凝土表面处理、片材数量及种类进行了研究。
Through engineering practice and theoretical analysis, the key points of quality and safe control in bonded post-tensioned pre-stressed concrete construction was presented in this paper.
本文通过工程和理论总结概述了后张有粘结预应力混凝土施工中质量与安全控制的要点。
The dynamic finite element program of bonded prestressed concrete beams was designed.
本文对有粘结预应力混凝土简支梁进行动力有限元程序设计。
Because the reinforcing bar and surroundings concrete can have opposite slip in unbonded prestressed concrete, Lead to stress and deflection differing from bonded prestressed concrete structure.
由于无粘结预应力混凝土构件中预应力钢筋与周围混凝土之间可以相对滑动，导致了构件受力和变形不同于有粘结预应力混凝土构件。
The differences between unbonded prestressed concrete flat-beam frame and bonded prestressed concrete flat-beam frame in seismic response are not obvious.
在地震荷载作用下，无粘结预应力混凝土扁梁框架和有粘结预应力混凝土扁梁框架结构的各种响应没有明显的差异。
Bonded and unbonded prestressed concrete frames are tested and analysed up to failure.
本文进行了有粘结和无粘结预应力混凝土框架的反复荷载试验。
The bonded prestressed concrete structural wide flat beams were employed as the frame beams, while the unbonded prestressed concrete structure was applied to the junior beams.
框架梁为有粘结预应力混凝土宽扁梁，次梁采用无粘结预应力混凝土结构。
This paper conducts a preliminary study of crack resistance and deformation behavior of prestressed concrete girders strengthened with externally bonded FRP in serviceability limit state.
对外贴FRP加固预应力混凝土桥梁正常使用极限状态的抗裂和变形性能进行初步研究。
Critical to strengthening a concrete structure through externally bonded FRP plates is the bond behavior between FRP and concrete.
FRP与混凝土的黏结性能是外贴纤维增强聚合物加固钢筋混凝土结构技术的关键问题。
In the constructing of duct grouting for post-tensioning bonded prestressed concrete, the suitable cement paste is the most essential and important factor to guarantee grouting quality.
在后张有粘结预应力砼孔道灌浆的施工中，良好性能的水泥浆体是保证灌浆质量的最基本、最重要的因素。
The conditions of anchorage intensely affect bond-anchorage properties of bonded rebar in concrete.
锚固条件对植筋的粘结锚固性能有很大的影响。
So the deflections of concrete beams prestressed with bonded FRP tendons are expected to be larger than those of the steel bars cases.
国内外已有试验研究表明，有粘结预应力FRP筋混凝土梁的破坏模式包括界限破坏、受压破坏与受拉破坏三种。
The nonlinear finite element model for the flexural reinforced concrete beams strengthened with epoxy bonded steel plates is presented.
提出了外粘钢板加固受弯钢筋混凝土梁的非线性有限元模型。
Based on the results of the tests, there is no obviously different response between bonded and unbonded prestressed concrete flat beam frames.
试验结果表明，有粘结预应力混凝土扁梁框架和无粘结预应力混凝土扁梁框架的各种反应没有显著的差异。
The results show that ANN is a feasible tool for predicting the ultimate bond strengths of CFRP bonded to concrete.
结果表明，运用人工神经网络对碳纤维布与混凝土的极限粘结强度进行预测是可行的。
Therefore, for the safe and economic design of externally bonded FRP systems, a sound understanding of the behavior of the FRP-to-concrete interface needs to be developed.
因此，基于对外部粘结FRP加固系统安全和经济设计的考虑，需要对FRP -混凝土界面行为展开深入的探讨。
The study was both experimental and analytical. 22 partially prestressed concrete beams with unbonded tendons and 4 with bonded tendons were tested.
试验研究了22根无粘结和4根有粘结部分预应力梁在三分点荷载作用下的抗弯性能。
Firstly, the experiment was made to investigate the strengthening of concrete flat plates with opening using externally bonded CFRP.
因此在本文中对碳纤维加固钢筋混凝土开孔平板进行了试验研究与理论分析。
The FRP-to-concrete interfacial debonding is a fundamental key problem for the strengthening of RC structures with externally bonded FRP.
粘贴FRP加固混凝土结构的界面剥离问题是FRP加固混凝土结构技术的关键基础问题。
In the un-bonded pre-stressed concrete bridges, Anchorage failure is likely lead to collapse of the entire system.
无粘结预应力混凝土构件中，锚具的失效可能导致整个结构体系的崩溃。
Experiment was designed to investigate the strengthening of concrete flat plates with opening using externally bonded CFRP.
设计了碳纤维加固钢筋混凝土开孔平板的试验。
For both types of test set-up, the cyclic bond stress-slip relations, and cyclic strain distribution profiles for the bonded FRP-to-concrete joints are presented and discussed.
对于这两种类型的测试设置，循环粘结应力滑移关系，循环应变保税玻璃钢到混凝土接缝和分布状况，提出讨论。
For both types of test set-up, the cyclic bond stress-slip relations, and cyclic strain distribution profiles for the bonded FRP-to-concrete joints are presented and discussed.
对于这两种类型的测试设置，循环粘结应力滑移关系，循环应变保税玻璃钢到混凝土接缝和分布状况，提出讨论。
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