| 不同束形配筋的预应力混凝土受扭梁的实验研究 |
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| 引用本文： | 刘晚成,葛小民,左洪亮,陈亭.不同束形配筋的预应力混凝土受扭梁的实验研究[J].低温建筑技术,2007(4):36-38. |
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| 作者姓名： | 刘晚成 葛小民 左洪亮 陈亭 |
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| 作者单位： | 东北林业大学土木工程学院,哈尔滨,150040;开封市通达公路工程有限公司,河南,开封,475000 |
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| 摘 要： | 根据预应力筋等效荷载的基本原理,提出一种折线螺旋束型的预应力混凝土受扭梁。对配有折线螺旋形预应力筋的混凝土受扭梁与通常配有纵向预应力筋的混凝土受扭梁进行了加载试验。结果表明,折线螺旋形预应力筋有效地推迟了预应力混凝土构件扭转裂缝的出现,提高了构件的开裂扭矩和极限扭矩,并保持一定的延性。
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| 关 键 词： | 预应力混凝土 受扭梁 折线螺旋形预应力筋 |
| 文章编号： | 1001-6864（2007）04-0036-03 |
| 修稿时间： | 2007-02-28 |
EXPERIMENTAL STUDY ON PRESTRESSED CONCRETE BEAM WITH DEFERENT LAYOUT CABLES SUBJECTED TO TORSION |
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| LIU Wan-cheng,GE Xiao-min,ZUO Hong-liang,CHEN Ting.EXPERIMENTAL STUDY ON PRESTRESSED CONCRETE BEAM WITH DEFERENT LAYOUT CABLES SUBJECTED TO TORSION[J].Low Temperature Architecture Technology,2007(4):36-38. |
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| Authors: | LIU Wan-cheng GE Xiao-min ZUO Hong-liang CHEN Ting |
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| Affiliation: | 1. College of Civil Engineering,Northeast Forestry University, Harbin 150040 , China 2. Kaifeng Tongda Highway Engineering Co. Ltd., Henan Kaifeng 475000, China |
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| Abstract: | A kind of prestressed concrete beam with spiral broken line cables subjected to torsion is present based on the principle of generalized equivalent loads of prestress cables.Load tests of the beam with spiral broken line cables and the general prestressed concrete beams with longitudinal cables are carried out.The results show that the spiral broken line cables effectively delayed the cracking of the beam and increased both crack torsional moment and ultimate torsional moment,kept some ductility. |
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| Keywords: | prestressed concrete beam subjected to torsion spiral broken line cable |
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