Abstract
This design is about Chongqing Wanzhou district KanKan river crossing test evaluation and reinforcement renovation. The bridge is an open spandrel stone arch bridge. After years of operating, defects arise from different parts. To verify whether the bridge meets the bearing capacity of highway grade I standard, this design firstly evaluates the bridge through the apparent diseases. Then it uses Midas/Civil to calculate the bearing capacity of lateral control section for Zhou Jiaba arch foot, L/4 and arch section. Using Midas/Civil control section load calculation, load test plan is made. In the end, by increasing cross-section method, the bridge reinforcement maintenance plan is made; that is increasing abdominal 26 cm concrete layer in the main arch ring of arch so that the bridge meets grade I highway capacity requirements.
Highlights
As one kind of traditional basic bridge type in our country, arch bridge can use local materials getting a low cost
We can completely make use of disease detection assessment and structure bearing capacity calculation to determine whether a disease of the bridge influences its normal work
When the bridge bearing capacity is insufficient, it is used to improve the bearing capacity of main girder and adopted at the bottom of the main girder. It is used for arch bridge reinforcement
Summary
As one kind of traditional basic bridge type in our country, arch bridge can use local materials getting a low cost. Stonearchbridge plays a decisive role [1]. What’s more, though the bridge suffered from wars in modern history, it is still in a good condition and plays an important part in traffic development. Bridges play a necessary role in improving traffic conditions naturally because of the difficult mountainous and streamy terrains. What’s more, thanks to the limited ancient architecture technology and beautiful shape with low cost, stone arch bridge construction is preferred. We can completely make use of disease detection assessment and structure bearing capacity calculation to determine whether a disease of the bridge influences its normal work. The bearing capacity can improve or not after reinforcement design It is very important for a bridge to determine whether to leave the stage of transportation history
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