| 部分预应力混凝土梁设计中几个问题的试验与分析 |
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| 引用本文： | 周远棣,陈野鹰.部分预应力混凝土梁设计中几个问题的试验与分析[J].重庆交通大学学报(自然科学版),1989,8(2):8-19. |
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| 作者姓名： | 周远棣 陈野鹰 |
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| 作者单位： | 不详 |
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| 摘 要： | 本文根据两组翼缘宽比梁高为1的工字形和T形截面部分预应力混凝土梁的试验结果,分析了非预应力钢筋采用Ⅲ级钢筋的可能性;非预应力钢筋中应力变化特点;翼缘剪力滞后影响;不同截面形式对名义拉应力的影响;裂缝计算等问题。并提出有关建议。
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| 关 键 词： | 部分预应力 应力 应变 非预应力钢筋 名义拉应力 剪力滞后 |
Test and Analysis of Some Design Problems in Partially Prestressed Concrete Beams |
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| Abstract: | This paper discusses the test results of two groups of partially prestressed concrete Ⅰ and T beams, with the flange depth ratio of one,and analyses the feasibility of using class Ⅲ steel bars for non-prestressed reinforcement, the non-prestressed steel stress variation along the span, the shear lag in the beam flange, the effect of section type on the hypothetical tensile stresses, crack computation, etc. |
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| Keywords: | partially prestressed stress strain non-prestressed steel bar hypo-thetical tensile stress shear lag |
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