| US 7,373,683 B2 | ||
| Construction method for prestressed concrete girder bridges | ||
| Sunghee Moon, Seongnam (Korea, Republic of) | ||
| Assigned to BNG Consultant Co., Ltd., Kyonggi-do (Korea, Republic of); Daewoo E&C., Ltd., Seoul (Korea, Republic of); and Korea Infrastructure Safety & Technology Corporation, Kyonggi-do (Korea, Republic of) | ||
| Appl. No. 10/555,927 PCT Filed May 13, 2004, PCT No. PCT/KR2004/001121 § 371(c)(1), (2), (4) Date Nov. 08, 2005, PCT Pub. No. WO2004/101892, PCT Pub. Date Nov. 25, 2004. |
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| Claims priority of application No. 10-2003-0031356 (KR), filed on May 16, 2003. | ||
| Prior Publication US 2007/0056123 A1, Mar. 15, 2007 | ||
| Int. Cl. E01D 21/00 (2006.01) | ||
| U.S. Cl. 14—74.5 [14/77.1] | 7 Claims |
| 1. A construction method for prestressed concrete (PSC) girder bridges comprising the steps of:
providing a PSC girder with at least first and second tendons;
tensing the first tendon and locating the PSC girder spanning between bridge seating devices;
gradually tensing the second tendon while arranging precast slabs at regular intervals on a top surface of the PSC girder;
compounding the precast slabs and PSC girder using a filler material; and
installing additional dead load on the precast slabs.
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