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2010年11 期
| 标题 |
| 预应力混凝土连续箱梁桥施工中腹板斜裂缝分析(50 卷) |
| 英文标题 |
| Analysis on skew cracking in web of prestressed concrete continuous box-girder bridge during construction |
| 摘要 |
| 白水冲特大桥箱梁在悬臂施工过程中出现腹板斜裂缝，通过对裂缝出现位置、走向和形态的分析，认为裂缝并非受力裂缝。混凝土应变测试结果表明，张拉钢束引起的垂直钢绞线的混凝土横向膨胀超过极限拉应变，裂缝产生的主因是设计中对锚固区局部应力考虑不足，经锚固端一定范围增 |
| 作者 |
| 新闻作者:郭凡，杨永清，刘国军 |
| 关键字 |
