UC知道桥梁专业英语翻译
来源：百度知道 编辑：UC知道 时间：2024/06/17 19:00:52
请好人，高人帮忙翻译啊，急死人了。感谢先了。
A bridge taxonomy shows evolutionary relationships
Bridges may be classified by how the four forces of tension, compression, bending and shear are distributed through their structure. Most bridges will employ all of the principal forces to some degree, but only a few will predominate. The separation of forces may be quite clear. In a suspension or cable-stayed span, the elements in tension are distinct in shape and placement. In other cases the forces may be distributed among a large number of members, as in a truss, or not clearly discernible to a casual observer as in a box beam. Bridges can also be classified by their lineage, which is shown as the vertical axis on the diagram to the right.
A bridge's structural efficiency may be considered to be the ratio of load carried to bridge weight, given a specific set of material types. In one common challenge students are divided into groups and given a quantity of wood sticks, a distance to span,
A bridge taxonomy shows evolutionary relationships
Bridges may be classified by how the four forces of tension, compression, bending and shear are distributed through their structure. Most bridges will employ all of the principal forces to some degree, but only a few will predominate. The separation of forces may be quite clear. In a suspension or cable-stayed span, the elements in tension are distinct in shape and placement. In other cases the forces may be distributed among a large number of members, as in a truss, or not clearly discernible to a casual observer as in a box beam. Bridges can also be classified by their lineage, which is shown as the vertical axis on the diagram to the right.
A bridge's structural efficiency may be considered to be the ratio of load carried to bridge weight, given a specific set of material types. In one common challenge students are divided into groups and given a quantity of wood sticks, a distance to span,
桥梁分类显示进化关系
桥梁可以按怎样四支队伍的张力，压缩，弯曲和剪切分布通过其结构。大部分桥梁将聘请所有的主要力量，在一定程度上，但只有少数人会占主导地位。部队隔离，可很清楚。在暂时吊销或斜拉桥跨径，要素紧张的是独特的形状和位置。在其他情况下，这或许是分散在大量的成员，作为一个桁架，或没有清楚可辨，一散观察员作为一个箱形梁。桥梁，也可以按自己的谱系，这是显示为纵轴上的图表，以正确的。
桥梁的结构效率可能会被视为比例负荷进行了桥梁的重量，由于一套特定的物质类型。在一个共同的挑战，学生分成若干小组，并给予一定数量的木材棍棒，距离跨度，胶水，然后问构建一个桥梁作用将得到检验，以销毁通过逐步增加负荷中心的跨度。大桥采取的最大负荷是由这个测试的最有效的结构。一个更精确的测量，为这项活动的主旨是衡量完成桥梁，而不是针对一个固定的数量，所提供的材料，并确定多的这个重量说，大桥可以进行一个试验，强调经济的材料和高效率的胶接头（见balsa木质桥） 。
大桥的经济效益，将现场及交通依赖性，比储蓄有一个桥（而非，例如，一渡轮，或更长的路航线）相比，它具有成本。寿命成本的组成材料，劳力，机械，工程，成本，资金，保险，维修，翻新，并最终危及拆迁及相关处理，回收，并更换，减少的价值，废弃和再利用的部件。桥梁雇用只有压缩相对低效的结构，但可能是高度成本效益，有合适的材料，可在工地附近的告示板和劳动力成本低。对于中等跨度，桁架或箱形梁通常是最符合经济效益的，而在有些情况下，出现了桥梁，可更重要的，比其成本效率。最长跨度通常需要悬索桥。