weight box

Engineering practice shows that medium-sized span or large span bridge with corrugated steel web PC box girder structure can reduce the weight of the bridge superstructure, so that the seismic excitation effect is significantly reduced and the seismic performance must be improve.

工程实践表明，中、大跨径的桥梁采用波形钢腹板PC箱梁结构能够减轻桥梁上部结构的重量，地震激励作用效果显著降低，抗震性能有一定提高。

The gross weight of the box of chocolates is 500 grams.

那盒巧克力的全部重量是500克.

As a thought experiment to explain his concept, Burns describes a box with a weight inside, threaded on a line, with a spring at each end bouncing the weight back and forth.

Burns利用一个思维实验解释他的概念，他描述说一个盒子里面有一个重物，穿在一条线上，两端用弹簧来回弹起重物。

So researching and improving web design, exerting material resistance fully, or reducing proportion of no exerting material resistance enough has been used as an important method of solving large span, light weight, saving material in the box steel girder design.

因此，研究、改进腹板设计，充分发挥材料抗力，或尽可能减少未发挥抗力的材料的比重，是推动箱形钢梁朝着大跨、体轻、省料方向发展的途径之一。

The lid of the box had been pushed in by the weight of the books on top.

箱子盖被上面的书的重量压得塌下去了.

Which has more weight a box filled with lead, or a box of equal size filled with loose paper?

一只箱子装满铅和另一只同样大小的箱子装满松散的纸，哪一只箱子重？

When self-weight and prestressed tendons act on together, the shear lag effect on box girder take on a evidently change.

对在跨中底板和支座底板布置通长预应力束的分析表明箱梁自重和预应力的共同作用对箱梁的剪力滞效应有很明显的影响。

Steel has the advantage of high strength, light weight, good mechanical properties, etc., along with the development of steel structure, welded thin-walled box section member structure in more and more widely applied.

钢材具有强度高、质量轻、力学性能良好等优点，随着钢结构的发展，焊接薄壁箱形截面构件在越来越多的结构中得到了广泛的应用。