悬臂施工法

大跨斜拉桥在施工过程中一般采用悬臂施工法。

And cantilever construction method is usually adopted in the long-span cable-stayed bridge construction .

铁路桥连续梁的施工过程比较复杂，悬臂施工法的应用，必然会引起连续梁结构及其复杂的内力与位移变化。

The construction process of the railway continuous beam is extremely complex . The application of the cantilever construction method will inevitably lead to the change of continuous beam structure and its complex internal forces and displacements .

大跨度连续梁桥的施工一般采用悬臂施工法，而随着桥梁跨度的增大，风对其的作用愈加显著。

Cantilever method is generally used in the construction of large-span continuous beam bridge . With the increase of the span , wind effects on the bridge become more and more significant .

近几年，由于悬臂施工法的广泛应用，大跨径曲线桥的施工监控方法也需进一步研究和积累经验。

In the past few years , the construction method of cantilever has been widely taken . So the long-span curve bridge construction control techniques are expected to study and accumulate experience further .

预应力混凝土T型刚构桥是因悬臂施工法的新生而发展的桥型，解决了预应力混凝土桥施工难题，对其他体系桥梁产生了深远的影响。

Prestressed Concrete T-shaped rigid frame bridge is just emerging from the development of cantilever construction . It resolves prestressed concrete bridge construction problems and has a far-reaching impact to other bridge systems .

作为一种无支架施工方法，平衡悬臂施工法在连续梁桥、连续刚构桥、斜拉桥施工中得到了普遍的采用。

Balanced cantilever erection for continuous girder bridges , continuous rigid frame bridges ( CRFB ) and cable-stayed bridges has been recognized as one of the most efficient methods of building bridges without the needs for falsework .

预应力混凝土连续箱梁桥以其跨越能力和结构刚度大、动力性能好、结构简单、工程造价低等特点，加上悬臂施工法的广泛采用而得到了迅速发展。

Prestressed concrete continuous box-girder birdge has developed quickly , because it has characteristics of large span , good structural rigidity , perfect dynamic performance , simple structure , low project cost and extensive use of cantilever construction .

然而，对于采用悬臂施工法的双薄壁柔性墩连续刚构桥，尤其是在连续刚构桥最大悬臂施工阶段，风荷载对其影响非常显著，已成为设计中必须考虑的重要因素之一。

However , for the continuous rigid-frame bridges with double thin-walled flexible piers , the influence of wind load is very obvious when they are in the cantilever erection stages . In the maximum double cantilever stage , wind load must be considered in the designs .

采用悬臂浇筑施工法施工的大跨PC连续刚构桥，在使用中其持久承载力不断地降低已成为事实。

It has become to pass that the permanent load-bearing capacity of the large-span PC ( prestressed concrete ) continuous rigid frame bridge constructed with the cantilever site cast construction method keeps cutting down in service .

连续刚构桥通常采用的施工方法是悬臂浇注施工法。

The most method that used in PC continuous rigid frame bridge construction was a cantilever construction method of pouring .