双室的 meaning in English

two-celled
two-chamber

When whole analysis is carried through the beam - lattice method and bridge surface is made of box beams with one box and two cells , according to the principle of constant bending rigidity and every part revolving the same neutral axis , a box beam can be simplified into three beams in the places of corresponding webs . thus effective transfer of shearing force can be ensured , and global property can be reached through that of three beams , this kind of method is simple and is able to ensure engineering precision ; secondly , the paper is based on elastic theory , adopts finite element method and carries through the first kind stability analysis towards zhongshan no . one bridge
在选用梁格法进行整体分析时，遇到桥面系是单箱双室的箱型梁时，按照抗弯刚度不变且各部分绕着同一中性轴的原则，将一个箱型梁在相应的腹板处简化成3根梁，能够保证剪力的有效传递，而且可以由这划分的3根梁的性能得到箱型梁结构的总性能，这种方法简便易行且能保证工程精度；其次，本文基于弹性理论，采用有限元法对中山一桥进行了第一类稳定分析。