| 葛宝翔,周明华.公路桥梁施工中若干预应力技术问题的探讨[J].现代交通技术,2007,(1):33-35 |
| 公路桥梁施工中若干预应力技术问题的探讨 |
| Analysis of Prestressing Technology Problems in Highway Bridge Construction |
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| DOI： |
| 中文关键词: 预应力桥梁 预应力技术 裂缝病害 |
| 英文关键词:prestressing bridge prestressing technology crack disease |
| 基金项目: |
| 葛宝翔 周明华 |
| [1]南京长江三桥建设指挥部,江苏南京210028 [2]东南大学土木工程学院江苏南京210096,江苏南京210028 |
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| 中文摘要: |
| 预应力技术在桥梁工程中的应用很多，随着高速公路的大规模建设，出现的质量问题和裂缝病害也不断增多。针对预应力桥梁施工中的砼早期强度、预留孔道质量，超长柬张拉工艺、扁锚的应用、夹片式锚具的尺寸和夹片长度对锚具质量影响等问题，进行了大量的调查和分析，对施工中发生的若干预应力技术问题提出了建议。 |
| 英文摘要: |
| Prestressing techonology is widely used in the construction of bridge engineering, the quality problems and the crack diseases are increasing continuously.According to the problems of earlier strength of concrete,quality of prestressing duct, tension technology of overlong tendon, application of flat anchorage, the effect of anchorage size and slice length on the anchorage quality, this paper conducts a great deal of corresponding investigations and analysis, and gives some advices for prestressing technology in bridge construction. |
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