composite girder meaning in English

混成大梁
组合梁

Steel - concrete composite girder
钢材混凝土组合梁
Steel concrete composite girder
钢筋混凝土合成梁
The internal force redistribution in continuous steel - concrete composite girders due to shrinkage of concrete
混凝土收缩引起连续组合梁的内力重分布计算
1 . prestressing a composite girder enlarges the range of elastic behavior , adjusts the redistribution of internal force , reduces deflections , increases craking load and ultimate loading capacity . 2
预应力作用扩大了结构的弹性范围，调整了结构的内力重分布，减小了挠度变形，提高了开裂荷载与极限承载力。
Consequently time and cost can be saved greatly . ( 3 ) design method for controlling cracks in the negative moment zone of the continuous composite girder the crack mechanism of the concrete deck in the negative moment zone of the coniinuous composite girder , the relationship between the crack and the int
分析认为，采用中间支点升降法与调整混凝土板施工顺序相结合的施工方法，不仅可以避免负弯矩区混凝土裂纹，还可以合理调整钢梁和混凝土板的内力，并使端支点与中间支点反力更均匀，使组合梁桥的结构更加经济合理。