Introduction of Dongying Yellow River Highway Bridge?

Dongying Yellow River Highway Bridge is located 4.6 kilometers downstream of Shengli Yellow River Highway Bridge. It is the last bridge of the Yellow River in Wan Li, with Zuojiazhuang in Kenli County, Dongying City on the south bank and Zhonggudian in Lijin County, Dongying City on the north bank.

The total length of the bridge is 2743. 1m, which consists of three parts: the north approach bridge project, the main bridge project and the south approach bridge project, and the bridge deck width is 26 m.

geographical position

Dongying Yellow River Highway Bridge is located in the east of Zuojiazhuang, Kenli County, about 5 kilometers downstream of Shengli Yellow River Bridge, and spans Kenli County and Lijin County from north to south. It is the only prestressed concrete rigid frame continuous composite beam bridge in Dongying City.

designing office

Highway Bureau of Shandong Provincial Communications Department and Keda Group Co., Ltd. invested 50% respectively and built in BOT mode; Designed by the First Survey and Design Institute of the Ministry of Railways and undertaken by China Railway 14th Bureau Group Co., Ltd., Shandong Provincial Traffic Engineering Corporation and Shandong Provincial Highway Engineering Corporation Jining Branch; Weifang Traffic Engineering Supervision Center supervises, and the Scientific Research Institute of the Ministry of Communications, Shandong Bridge Testing Center, Weifang Central Branch of China Pacific Property Insurance Co., Ltd., Tsinghua University, Tongji University, Harbin Institute of Technology, Changsha Jiaotong University and other units provide technical services; It is the first Yellow River Bridge jointly built and operated by BOT mode in Shandong Province.

work progress

On July 1 1 day, 2000, Shandong Provincial Planning Commission approved the establishment of Dongying Yellow River Highway Bridge project with documents Lunengzi [2000] No.682 and Lunengzi [2000] No.683, and reported it to the State Planning Commission for the record. On August 28th, 20001year, Dongying Yellow River Highway Bridge Project Office was formally established. 65438+1October1~13, Donghong Highway Dongying Yellow River Highway Bridge and Wiring Engineering Co., Ltd. was established. 65438+February 10, determine the construction organization plan. On June 8, 2002, the bid opening meeting of Dongying Yellow River Highway Bridge was held. For the first time in Shandong province, the construction and supervision units were selected by means of bidding without base price. On July 18, the project signing ceremony was held. The design speed of the bridge is 100km/h, the design load is steam overload 20, and the suspension is 120. The maximum longitudinal slope of the bridge deck is 4.0% and the transverse slope of the bridge deck is 2.0%; The design flood frequency is once every 300 years.

Navigation standard

Four-level inland waterway, with 2 navigation holes, the highest navigable water level 1 1.42m (corresponding to the peak flow of 9000m3/s), the navigable clear height of 8m, the clear width of the waterway of 80m, and the seismic intensity is fortified according to VIII degree. The total length of the bridge is 2743. 1m, the main bridge is 852.0m, and the approach bridge is 1890m. The combination of bridge width is 0.5m (crash barrier) +3.25m (emergency parking zone) +2× 3.75m (carriageway) +0.75m (left edge line) +2.0m (median line) +0.75m (right edge line) +2× 3.75m (carriageway) +3.25m (bridge width). From top to bottom, the bridge deck pavement is 4cm MAC(AK- 13A) modified asphalt concrete surface +5cm (AC-20I) medium-grained asphalt concrete +YN- polymer asphalt bridge deck waterproof coating +8cm 30 waterproof concrete. The waterproof concrete pavement is provided with 10× 10 cm first-class steel mesh, and the steel bar diameter is10 mm. ..

Important significance

In order to give full play to the role of Donghong Expressway as a major traffic channel, meet the needs of highway traffic and economic development in Dongying City, solve the "bottleneck" situation of Shengli Yellow River Bridge and promote the smooth implementation of Bohai Expressway, Dongying Municipal Party Committee and Municipal Government decided to build Donghong Road Dongying Yellow River Highway Bridge.

The bridge connects Kenli main line of East (Ying)-Qingdao Expressway in the south, intersects with East (Ying)-Hong Kong Expressway in the north, and connects Xinhe Road and Yongguan Road in the west. It is the hub project of Bohai Rim Expressway and important national trunk highways, and it is also an important channel connecting Jiaodong Peninsula, Yellow River Delta and Beijing-Tianjin-Tangshan area. Its completion has accelerated the integration of the Yellow River Delta into Shandong Bohai Economic Belt, and will play a positive role in promoting the economic development of Dongying City, including Kenli County, and the development and construction of Shengli Oilfield.

Building structure

The total length of the bridge is 2743. 1m, which consists of three parts: the north approach bridge project, the main bridge project and the south approach bridge project. The main bridge has 8 piers with a maximum span of 220 m; The span combination of the south approach bridge is a 2-hole 42m simply supported box composite beam+1 5-hole 42m simply supported and then continuous box composite beam; The north approach bridge is a 42m 38-hole box composite beam. The main channel span is116m+200m+220m+16m = 852m, and the bridge deck width is 26m.

The bridge crosses the Yellow River levee in the way of level crossing, and bypass roads are built to ensure the smooth traffic of flood control and emergency rescue of the Yellow River.

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