UC知道跪求高手翻译土木专业英语2
来源：百度知道 编辑：UC知道 时间：2024/06/30 11:29:45
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Introduction
The use of unbonded tendons is now common in prestressed concrete structures, and they may be in the form of internal or external tendons.With the increasing use of unbonded tendons in both new construction and retrofitting of existing structures, there is the need for a closer look at their design and analysis. As the tendons and the surrounding concrete generally move with respect to each other, the stress increase in the tendons due to external loading subsequent to prestressing depends on the deformation of the whole member, and cannot be determined from the analysis of the cross section alone as in the case of bonded tendons.Many experimental and analytical studies have been carried out within the past five decades for prediction of the flexural resistance of prestressed concrete beams with unbonded tendons, which is closely related to the ultimate tendon stress at flexural failure. However, there have been few investigations on the ductility of prestre
Introduction
The use of unbonded tendons is now common in prestressed concrete structures, and they may be in the form of internal or external tendons.With the increasing use of unbonded tendons in both new construction and retrofitting of existing structures, there is the need for a closer look at their design and analysis. As the tendons and the surrounding concrete generally move with respect to each other, the stress increase in the tendons due to external loading subsequent to prestressing depends on the deformation of the whole member, and cannot be determined from the analysis of the cross section alone as in the case of bonded tendons.Many experimental and analytical studies have been carried out within the past five decades for prediction of the flexural resistance of prestressed concrete beams with unbonded tendons, which is closely related to the ultimate tendon stress at flexural failure. However, there have been few investigations on the ductility of prestre
导言
采用无粘结预应力是现在常见的预应力钢筋混凝土结构，并且它们可能采取的形式是内部或外部tendons.with越来越多地使用无粘结预应力在这两个新的建设和改造现有的结构，有必要建立更密切看看他们的设计与分析。由于肌腱和周围混凝土一般与尊重对方，应力增加，在肌腱因外部加载以后预应力取决于对变形的全会员，并不能确定，从分析的横截面仅作为在案件保税tendons.many实验和分析研究，已进行了在过去的50年间预测的弯曲阻力的预应力混凝土梁无粘结预应力，其中有很密切的关系，最终肌腱强调，在弯曲破坏。但也有少数调查延性的预应力混凝土构件与无粘结筋。事实上，延性是一样重要的抗弯阻力为预应力混凝土构件无粘结预应力，以评估其安全的现实。本研究旨在评估其弯曲延性的预应力混凝土构件无粘结预应力，同时考虑到应力路径依赖的材料。由于塑性铰形成于束进入峰后阶段外，其他路段将卸下的，因此有必要考虑应力路径依赖性。用非线性分析方法，进行广泛的参数研究进行评估的影响，不同参数，如载荷类型，跨度深入比率，有效加固指数中，部分预应力比，混凝土抗压强度，和比例压缩加固延性行为。
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