| dc.description.abstract | Road network provides a livelihood convenience, and created an overall economic development, bridge construction plays an important role to overcome the limitations of the terrain of the natural environment, Taiwan is located on the seismic belt of the Pacific, the frequent earthquakes can cause partial damage to the reinforced concrete or concrete body of the bridge. For precautionary after the 921 earthquake, Taiwan Area National Expressway Engineering Bureau, is planning a seismic retrofit program of bridges, bridge structures of Freeway 1 and Freeway 3 are reexamined, the bridges that fails the seismic design code, are being reinforced, hoping to reduced the damage and casualties caused by earthquakes.
The main implementation of seismic retrofit design and engineering methods, is to increase the toughness and strength of the bridge, reducing the potential of soil liquefaction and strengthen the bridge′s structure. The reinforcing project content, mostly use anchoring as reinforcing process, anchorage reinforcing have a standard operating requirements and facilities, construction details and the operation managements affects the result of reinforcements.
Taiwan has used the anchorage reinforcing for many years, and it has a wide range of applications.by implementing structural reinforcement and bridge seismic retrofit as principles, as for the anchor adhesive, it must meet the ICC AC308 testing standards, keeping the quality in control, which is by passing cracking, shock, long-term creeping, moisture, temperature and other performance tests, which can improve efficiency and quality of the construction.
To determine anchorage completion and compliance, we should consider in certification, checking the anchorage materials,related products supporting documents, inspection and testing. ISO17020 is an ＂inspection certification＂, in the future planning, an ISO17020 certified laboratory, validating the implementation of anchorage, the National Freeway Bureau of Bridge Maintenance Management System can think about the function of bridge structural reinforcement verification. | en_US |