[1]刘立新,胡丹丹,于秋波,等.先张法折线形预应力梁钢绞线摩擦损失试验研究[J].郑州大学学报(工学版),2006,27(04):6-9.[doi:10.3969/j.issn.1671-6833.2006.04.002]
LIU Lixin,Hu Dandan,YU Qiubo,et al.Experimental study on friction loss of steel strand of pre-tensioned prestressed beam [J].Journal of Zhengzhou University (Engineering Science),2006,27(04):6-9.[doi:10.3969/j.issn.1671-6833.2006.04.002]
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先张法折线形预应力梁钢绞线摩擦损失试验研究(
)
《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]
- 卷:
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27卷
- 期数:
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2006年04期
- 页码:
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6-9
- 栏目:
-
- 出版日期:
-
1900-01-01
文章信息/Info
- Title:
-
Experimental study on friction loss of steel strand of pre-tensioned prestressed beam
- 作者:
-
刘立新; 胡丹丹; 于秋波; 等.
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郑州大学土木工程学院,河南,郑州,450001, 郑州大学土木工程学院,河南,郑州,450001;郑州大学综合设计研究院,河南,郑州,450002
- Author(s):
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LIU Lixin; Hu Dandan; YU Qiubo; etc
-
-
- 关键词:
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先张法预应力钢绞线; 摩擦损失; 张拉控制应力; 弯起角度; 弯起器; 减摩片
- Keywords:
-
- DOI:
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10.3969/j.issn.1671-6833.2006.04.002
- 文献标志码:
-
A
- 摘要:
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弯起器是实现先张法折线预应力配筋的13°下穿过弯起嚣后预应力筋的摩擦损失,分析影响钢绞线摩擦损失的主要因素,提出试验所采用的弯起器预应力筋摩擦损失的计算方法及相关建议.试验结果表明,钢绞线的摩擦损失同弯起角度成正比关系且与张拉控制应力呈线性关系,弯起器钢绞线孔洞上方的钢板挤压应力仅为张拉控制应力的2.1%,表明弯起器具有可靠的强度和安全保证依据.
- Abstract:
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The bender is to realize the friction loss of the prestressed ribs after passing through the bending at 13° of the prestressed reinforcement of the pre-tensioned line, analyze the main factors affecting the friction loss of the steel strand, and put forward the calculation method and related suggestions of the friction loss of the prestressed rib of the bender used in the test. The test results show that the friction loss of the steel strand is proportional to the bending angle and linear with the tension control stress, and the extrusion stress of the steel plate above the hole of the steel strand of the bender is only 2.1% of the tension control stress, indicating that the bender has a reliable strength and safety guarantee basis.
更新日期/Last Update:
1900-01-01