There is no limit, only speed limit. Chongqing Shuangbei Tunnel only allows trucks to enter the city. For example, from 7: 00 to 22: 00, foreign trucks are prohibited from passing; From 7: 00 to 22: 00, trucks with more than 3 axles are prohibited from passing; 7-9:30; 16:30- 19 local trucks are prohibited. If you are out of town, there is no limit. Shuangbei Jialing River Bridge is a river-crossing channel connecting Shapingba District and Yubei District in China. It is located on the Jialing River waterway and is an important node project of the "three horizontal lines" expressway. Shuangbei Jialing River Bridge started on February 28th, 2008, 65438. [1] On August 8, 2013, the main bridge closure project was completed, and the whole bridge was connected; [2] It was opened to traffic on February 2015 13. Shuangbei Jialing River Bridge starts from Shuangbei West Interchange in the west, crosses Jialing River waterway in the upper part and reaches Daning Interchange in the east; The total length of the line is1928m, and the main bridge is 645m long. The bridge deck is a two-way six-lane urban expressway with a design speed of 60 km/h. Shuangbei Jialing River Bridge is located in the northwest of Chongqing, China, connecting Shapingba District and Yubei District. It is about 5km away from downstream Gaojiayuan Jialing River Bridge in the south and/or 0/3 km away from upstream Maanshi Bridge in the north. Shuangbei Jialing River Bridge starts from Shuangbei West Interchange in the west, crosses Jialing River Waterway in the east, connects Danong Interchange in the west, connects Ping 'an Avenue and Shuangbei Tunnel after Shuangbei West Interchange, and connects Hongfan Road after Tokyo Danong Interchange. Data expansion: technical problems of the construction achievements of Shuangbei Jialing River Bridge _ construction difficulties The main difficulties in the construction of Shuangbei Jialing River Bridge are: 1, cantilever pouring design of the main girder in the curve section of low tower; 2. Tower hanging basket design passing through the auxiliary pier: 3. Mid-span closure design; 4. Asymmetric suspension casting design of high tower: 5. Stress influence of curve section of low tower on main tower. _ Technological Innovation In order to adapt to the site construction conditions, Shuangbei Jialing River Bridge adopted a series of new technologies: 1 and rigid frame system, which improved the overall structural rigidity and the safety of the main girder during construction, and reduced the procedures of system conversion and bearing replacement during operation. It is the preferred structural system of curved cable-stayed bridge. 2. The width of the bridge is 32.5 meters, and the middle is a single cable plane system, so the inverted trapezoidal box girder section with strong bending and torsion resistance is adopted, and the inclined web adopts an inclination angle with a slope greater than 60 degrees, which reduces the width of the main girder floor, lightens the structural weight and improves the wind resistance, and the main girder looks light and beautiful. The critical flutter wind speed of the beam at each stage is greater than 1.33m/s, which is much greater than the test wind speed of 62.9 m.3.. In order to reduce the bending moment of tower root under the load of shrinkage and creep of concrete main beam and system temperature. The lower tower pier adopts a new structure with a spacing of only 20 cm, which reduces the anti-push stiffness by half and greatly reduces the foundation scale. At the same time, because the distance between the legs is only 20 cm, it does not affect the overall landscape effect of the lower tower pier in appearance, which is beneficial to the tower pier to resist ship collision during the operation period.
Legal basis:
Road Traffic Safety Law of the People's Republic of China
Article 39 The traffic administrative department of the public security organ may, according to the specific conditions of roads and traffic flows, take measures such as diverting, restricting traffic and prohibiting traffic for motor vehicles, non-motor vehicles and pedestrians. In case of large-scale mass activities and large-scale construction, etc. If it is necessary to take measures to restrict traffic or make decisions directly related to public road traffic activities, it shall be announced to the public in advance.