Unit 7 Columns and slabs of reinforced concrete 

词汇

1. one-way slab单向板

2. two-way slab双向板

3. flat plate无梁平板

4. waffle slab密肋板

5. flat Slab无梁楼板

6. two-way slab with beams双向梁板

7. span 跨度

8. rib 肋

9. fiberglass 玻璃纤维

10. panels  托板

句子

1. .长柱（细长柱），即存在压曲效应并且在设计中必须考虑长细比，这将使长柱的承载能力较短柱小。

Long columns (slender columns), where the buckling effect and the slenderness ratio must be taken into consideration in the design, thus reducing the load capacity of the column relative to that of a short column.

2. 柱中的主要钢筋是纵向的，平行于荷载方向，由方形、矩形或圆形排列的钢筋组成。

The main reinforcement in columns is longitudinal, parallel to the direction of the load, and consists of bars arranged in a square, rectangular, of circular pattern.

3. 双向板是一种高效、经济并且广泛使用的结构体系。实际工程中，双向板可分成不同的形式。

Two-way slab is an efficient, economical and widely used structural system. In practice, two-way slabs take various forms.