The paper introduces specific construction process of pretensioning coredslab beam at some length, improves existing problems in construction.
就先张法预应力混凝土空心板梁的施工过程作了详细的介绍，对施工中存在的问题作了相应的改进措施。
2
The hydraulic blasting was adopted to safely demolish the bridge after analyzing the blasting programs and utilizing the structural characteristics of coredslab.
经拆除方案论证，利用桥板空心可以注水的结构特征，采用水压爆破法安全拆除。
3
This paper tests the high-point carrying capacity of prestressed coredslab under Different Concrete Strength by destructive experiment which process is simple, clear and easy to implement.