桥梁论文 外文翻译.docx

桥梁论文 外文翻译
The bridge crack produced the reason to simply analyse
In recent years, the traffic capital construossible, in order to design , construct and find out the feasible method which control the crack , get the result of taking precautions against Yu WeiRan.


Concrete bridge crack kind, origin cause of formation In fact, the origin cause of formation of the concrete structure crack is complicated and various, even many kinds of factors influence each other , but every crack has its one or several kinds of main reasons produced . The kind of the concrete bridge crack, on its reason to produce, can roughly divide several kinds as follows :
(1) load the crack caused Concrete in routine quiet .
Is it load to move and crack that produce claim to load the crack under the times of stress bridge, summing up has direct stress cracks , two kinds stress crack onces mainly. Direct stress crack refer to outside load direct crack that stress produce that cause. The reason why the crack produces is as follows, 1, Design the stage of calculating , does not calculate or leaks and calculates partly while calculating in structure; Calculate the model is unreasonable; The structure is supposed and accorded with by strength actually by strength ; Load and calculate or leak and calculate few; Intern