Nanpu bridge started construction on June 20th1988+February 15, and the bridge was closed on June 20th 199 1. In February of the same year 1 was officially opened to traffic. Nanpu bridge, once the third largest composite beam cable-stayed bridge in the world, was built between Lujiabang Road in Puxi and the South Pier in Pudong New Area. Huangpu River Bridge connects Huangpu District and Pudong New Area, which is an important part of Shanghai Inner Ring Road and one of the first projects to develop Pudong.
The total investment of the project is 820 million yuan. The total length is 8346 meters, including 846 meters of main bridge and 7500 meters of approach bridge. The main bridge is a river-crossing cable-stayed bridge with twin towers and double cable planes. There are two H-shaped reinforced concrete towers with a height of1.54m on both banks, and 55,000-ton ships can pass under the bridge. The upper beam of the main tower of the bridge is inlaid with the name of the bridge inscribed by Comrade Deng Xiaoping.
The total width of the main bridge is 30.35 meters and there are 7 motor vehicles. The Puxi approach bridge is 3754 meters long and is connected with Zhongshan South Road and Lujiabang Road by spiral complex curve. Pudong approach bridge is 3746 meters long, rectangular and complicated in curve. It is connected with Pudong South Road and goes straight to Yanggao Road.
brief introduction
Nanpu bridge is a cable-stayed bridge with two towers and two cable planes designed and built by our country. The four red characters "nanpu bridge" on the main tower were inscribed by Comrade Deng Xiaoping (each word 16 square meter). Puxi approach bridge is beautiful in shape, spiral curve, and the upper and lower three rings are bifurcated, connecting the inner ring elevated, Zhongshan South Road and Lujiabang Road. Nanpu bridge1988 65438+February 15,199120 June, the bridge was completed19 October.
Nanpu bridge hovered on the Huangpu River with its head held high like a dragon, which made Shanghainese realize the dream of "flying to Huangpu River with one bridge". The shape of the bridge is vigorous, straight, simple and light, and it flies over the Pujiang River with magnificent scenery. At night, the bridge is illuminated by the middle pole, the main bridge is illuminated by floodlights, and there is a floodlight at the root of the steel cable, which shines on the bridge tower, dazzling.
The main bridge in nanpu bridge is 846 meters long and spans 423 meters across the river, which is the highest in China at that time. Made of steel and concrete. The lower deck is a large I-beam frame, and the upper deck is a reinforced concrete deck. The steel frame and the bridge deck are welded by electric welding, and concrete is poured at the joint, so that the two are integrated. This new structure composed of bridge deck and steel frame is called composite beam structure. This is the first time in China, the first time in the history of bridge construction in China and a pioneering work in the history of bridge construction.
The main deck steel frame has 438 steel beams, one of which weighs 80 tons, which is the highest in China. The thickest steel plate used to make steel beams actually reaches 80 mm, and its thickness is the highest among steel structures in China. More than 6,543,800 sets of high-strength bolts are used to assemble steel frames, with a diameter of 30 mm, which is unprecedented in the history of bridge construction in China.
The deck of the main bridge of the bridge is hung on the pylon with 180 steel cables, of which the thickest steel cable is twisted with 265 high-strength steel wires with a diameter of 7 mm, with a diameter of 146mm and a weight of 2 1 ton, ranking first in China at that time. It is 223 meters long, which is equivalent to the height of three international hotels. 180 steel cables are all pulled by jacks and fixed on the main tower. The pulling force of each jack is 600 tons, which is also the highest in China.
Nanpu bridge navigation clearance height is 46 meters, which is second to none among domestic bridges. "Because of the height of the bridge, the working face is higher when the bridge is built. The cadres and workers of Shanghai Foundation Engineering Company, who are responsible for the construction of the main bridge deck, have to work at an altitude of more than 50 meters, and the stay cables have to be installed at 1 10 meters before they can work. I'm afraid these are' the best in the country'.
It took only three years for nanpu bridge to start construction from 1988 to be completed and opened to traffic on February 5, 65438. The long-span Nanpu cable-stayed bridge built in three years is a miracle in the history of bridge construction in the world with its grand scale, strict technology, complex technology, great construction difficulty and short construction period.
Puxi approach bridge is 3754 meters long. Due to the limitation of geographical space, the approach bridge in Puxi is designed as two complex curves and spirals, which are shaped like a round dragon, which is also rare in the history of bridge construction at home and abroad. When tourists get on the bus, it's like entering the Panshan Highway and looking down at the garden green space under the bridge. There are fewer and fewer people walking. The bridge rising outside the window makes every tourist feel that the car is walking on the bridge and people are swimming in the air.
Nanpu bridge main bridge is 846 meters long, with light body, slightly convex deck, standing proudly, symmetrical and harmonious, good sense of space and beautiful shape. There are hundreds of symmetrical stay cables on both sides of the main tower, supporting the huge nanpu bridge over Pujiang.
The smooth opening of nanpu bridge laid a good foundation for the future construction of Yangpu Bridge, Xupu Bridge and Feng Pu Bridge. In just a few years, there have been five bridges on the Pujiang River, and several others are being designed and manufactured. Shanghai Pudong is changing with each passing day. More and more domestic and foreign investors put their money into this hot spot. The convenient traffic environment has added wings to the take-off of Pudong.
investment climate
Nanpu bridge with a total investment of 820 million yuan was officially completed and opened to traffic on June 5438+099 1 day+February 1 day. Nanpu bridge is the first bridge across Huangpu River in Shanghai. The total length of the bridge is 8,346 meters, the clear navigation height is 46 meters, and it can pass 55,000-ton ships. The main bridge is a cable-stayed bridge with twin towers and double cable planes, with a total length of 846 meters. The main tunnel spans 423 meters. The bridge tower is a broken-line H-shaped reinforced concrete structure with a tower height of 154m. There are 22 pairs of steel cables connecting the main girder on both sides of each bridge tower, and the cable planes are arranged in a fan shape. Steel pipe piles with a diameter of 9 14 mm and a depth of more than 50m are selected for the foundation of the tower foundation. The main bridge is equipped with six motor vehicle lanes with a daily capacity of 45,000-50,000 vehicles. There are 2 meters wide sidewalks on both sides of the main bridge for sightseeing. The total width of the bridge deck is 30.35 meters. The approach bridges on both sides of nanpu bridge are 7,500 meters long, of which the approach bridge in Puxi section is 3,754 meters long, with a spiral shape and complex curve. Pudong approach bridge is 3746 meters long, connected with Pudong South Road and directly connected with Yanggao Road through a complicated curved rectangle. The approach bridge is equipped with 6, 4 and 2 lanes according to the traffic flow, with a speed of 40 kilometers per hour.
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