| 某特大桥连续刚构箱梁底板修复施工 |
| |
| 引用本文： | 边广生,郭正兴,刘家彬.某特大桥连续刚构箱梁底板修复施工[J].建筑技术,2007,38(6):443-445. |
| |
| 作者姓名： | 边广生 郭正兴 刘家彬 |
| |
| 作者单位： | 东南大学土木工程学院,210096,南京 |
| |
| 摘 要： | 某高速公路特大桥,由于施工阶段底板纵向预应力束张拉导致箱梁底板发生层状撕裂,须凿除底板后重新浇筑。修复施工过程中,张拉底板钢束后产生的压应力将从底板向全截面传递,为保证压应力能有效传递,采取了一系列施工措施,保证了结合面的粘结性能和抗剪能力,施工效果良好。
|
| 关 键 词： | 桥梁修复施工 箱形梁 界面处理 |
| 文章编号： | 1000-4726（2007）06-0443-03 |
| 修稿时间： | 2006-12-17 |
REPAIR CONSTRUCTION OF BOTTOM SLAB IN A CONTINUOUS FRAME BRIDGE |
| |
| BIAN Guangsheng,GUO Zhengxing,LIU Jiabin.REPAIR CONSTRUCTION OF BOTTOM SLAB IN A CONTINUOUS FRAME BRIDGE[J].Architecture Technology,2007,38(6):443-445. |
| |
| Authors: | BIAN Guangsheng GUO Zhengxing LIU Jiabin |
| |
| Affiliation: | College of Civil Engineerlng,Southeast University, 210096, Nanjing, China |
| |
| Abstract: | Because of tension of pre-stressed steel bar during construction,the bottom slab of a box girder bridge cracked transversely.And the slab must be removed and recast.After recasting of concrete,pre-stressed steel bar was tensioned again and the compressive stress was transferred from bottom to all cross-section in the repairing process.To ensure the effective transfer of the stress,some measures were taken to guarantee the bonding performance and shear resistance of connecting interface,reaching good construction effect. |
| |
| Keywords: | repair construction of bridge box girder interface treatment |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
