CN1105628C - 大截面预应力混凝土涵管及其制作方法 - Google Patents
大截面预应力混凝土涵管及其制作方法 Download PDFInfo
- Publication number
- CN1105628C CN1105628C CN 00102732 CN00102732A CN1105628C CN 1105628 C CN1105628 C CN 1105628C CN 00102732 CN00102732 CN 00102732 CN 00102732 A CN00102732 A CN 00102732A CN 1105628 C CN1105628 C CN 1105628C
- Authority
- CN
- China
- Prior art keywords
- culvert pipe
- section
- pipe body
- reinforcing steel
- presstressed reinforcing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Sewage (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
Description
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN 00102732 CN1105628C (zh) | 2000-02-22 | 2000-02-22 | 大截面预应力混凝土涵管及其制作方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN 00102732 CN1105628C (zh) | 2000-02-22 | 2000-02-22 | 大截面预应力混凝土涵管及其制作方法 |
Publications (2)
Publication Number | Publication Date |
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CN1271643A CN1271643A (zh) | 2000-11-01 |
CN1105628C true CN1105628C (zh) | 2003-04-16 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN 00102732 Expired - Fee Related CN1105628C (zh) | 2000-02-22 | 2000-02-22 | 大截面预应力混凝土涵管及其制作方法 |
Country Status (1)
Country | Link |
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CN (1) | CN1105628C (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100376835C (zh) * | 2005-03-25 | 2008-03-26 | 衡水长江预应力有限公司 | 大截面圆心应力抗震涵管及其制备工艺 |
CN100417856C (zh) * | 2005-03-25 | 2008-09-10 | 衡水长江预应力有限公司 | 小截面环心应力抗压涵管及其制备工艺 |
CN103395121A (zh) * | 2013-08-13 | 2013-11-20 | 凌其彬 | 一种涵管箍架机 |
CN104018436B (zh) * | 2014-05-07 | 2018-02-09 | 四川华西绿舍建材有限公司 | 预制箱涵系统及其安装方法 |
CN106013393A (zh) * | 2016-06-20 | 2016-10-12 | 北京市市政工程研究院 | 承插式rpc薄壁椭圆截面管及其施工方法 |
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2000
- 2000-02-22 CN CN 00102732 patent/CN1105628C/zh not_active Expired - Fee Related
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Publication number | Publication date |
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CN1271643A (zh) | 2000-11-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
IP01 | Partial invalidation of patent right |
Decision date of declaring invalidation: 20050420 Decision number of declaring invalidation: 7147 Case number: W40829 Conclusion of examination: No 6. review concluded that the claim of patent No. 102732.8 for invention 1-3 and 5-11 was invalid. On the basis of claim 4, the patent right of invention 102732.8 was maintained. Decision date: 20050420 Denomination of invention: A large section of prestressed concrete culvert and its making method Granted publication date: 20030416 Int.cl.7: B28B23/08 Patentee: Feng Dabin|Wang Zhile|Chen Zhong Review decision number: Number 7147th |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030416 Termination date: 20100222 |