自控耗能UPPC框架中自控元件的力学性能研究

发布时间：2018-05-11 14:29

  本文选题：自控元件 + 自控耗能UPPC框架　； 参考：《建筑结构》2016年S1期

【摘要】：介绍了新型的预应力混凝土框架体系——自控耗能无粘结部分预应力混凝土(UPPC)框架的基本形式及其受力机理。对自控耗能UPPC框架的核心构件——自控元件的基本构造和施工工艺做了说明,对自控元件的铸铁部分、变形盒部分以及自控元件整体进行了力学性能试验。试验结果表明:1)自控元件的破坏形式为脆性破坏,满足在罕遇地震下自控元件达到其承载力阈值时突然破坏,自控耗能UPPC框架形成安全的梁铰耗能机制[1]的要求;2)碳纤维布与铸铁的复合使用,能显著提高自控元件的极限承载力,同时能达到减小自控元件尺寸、减轻其重量的目的,便于自控元件在工程中的应用。
[Abstract]:This paper introduces the basic form and mechanical mechanism of a new type of prestressed concrete frame system-self-control energy dissipation unbonded partially prestressed concrete (UPPC) frame. The basic construction and construction technology of automatic control element (UPPC), which is the core component of automatic energy dissipation (UPPC) frame, is explained. The mechanical properties of cast iron part, deformation box part and whole automatic control element of automatic control element are tested. The test results show that the failure form of the automatic control element is brittle failure, which satisfies the sudden failure when the automatic control element reaches its bearing capacity threshold under rare earthquake. The requirement of safe energy dissipation mechanism of beam hinge in automatic control UPPC frame [1]) the composite use of carbon fiber cloth and cast iron can significantly improve the ultimate bearing capacity of the automatic control element, at the same time, it can achieve the purpose of reducing the size and weight of the automatic control element. To facilitate the application of automatic control elements in engineering.
【作者单位】： 南京工业大学土木工程学院;江苏建华建设有限公司;
【分类号】：TU378.4
，

本文编号：1874336