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With the sustained and rapid economic development, China has also ushered in a transport glorious era . Substantial growth in road traffic , highway mileage has been ranked first in the world , roads and bridges construction is to make the world wonder of the rapid pace of development , roads and bridges in the role and status of the national economy has become increasingly significant importance for the people . China's current bridge construction technology has reached the world advanced level, but part of the old bridge maintenance management, and how to adapt to bridge the current vehicle load requirements and other issues become increasingly prominent , coupled with China's highway construction in the financing, construction mode , charges and repayment method , conservation management structure showing a more complex aspects of diversity , leading to \Old bridge repair and reinforcement , no ready-made norms , not the availability of standard drawings , bridges disease complex , difficult to determine the cause of disease . Therefore, to further strengthen the bridge maintenance repair and reinforcement technology research, and increase funding worn bridges , timely elimination of security risks , the protection of people's lives and property safety and conservation of national construction funds , has an extremely important significance. This paper analyzes the main highway bridge in Zhengzhou City, the status quo , and the author of the provincial highway 316 line involved throughout Hou Village Bridge in Zhengzhou, visual inspection , concrete strength , concrete cover thickness testing and static load test and dynamic load test results as the basis, proposed bridge Retrofitting program for the future , Zhengzhou City, trunk highway bridge repair and reinforcement to provide some reference .
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