Research on the Bridge Type Quadrant Diagram in Building Superlong-Span Bridges

Abstract

With the increasing demand for global connectivity, research on superlong-span bridges has received increasing attention. This study revealed that the absence of internal forces and infinite structural stiffness are the basic conditions for building bridges with infinite spans. Based on this, three types of superlong-span collaborative bridge systems were built using the bridge type quadrant diagram and the characteristics of superlong-span bridges and specific measures to improve bridge stiffness were summarized. The bridge type quadrant diagram provides not only a simple approach for building structurally complex collaborative bridge systems but also a method for building superlong-span bridges. The results show the existence of three collaborative system bridges: the stayed cable-umbrella truss collaborative system bridge, the suspension-arch collaborative system bridge, and the stayed cable-suspension-arch-umbrella truss collaborative system bridge. Those collaborative system bridges meet the conditions of relatively ideal bridges and have the potential to become superlong-span bridges. The symmetry and force transmission paths of the bridge quadrant diagram reveal the construction characteristics of superlong-span bridges.

Keywords

ideal bridge / the bridge type quadrant diagram / relatively ideal bridge / superlong-span bridge

References

[1] Na, Q. On the Current Situation and Development of Extra-Large Span Bridges. Qinghai Jiaotong Keji 2004, 14-18, doi:10.3969/j.issn.1672-6189.2004.05.007.

[2] Zeng, X.; Wang, Y. Review and Forecast of the Bridge Construction. Transport World 2003, 28-33, doi:10.3969/j.issn.1006-8872.2003.09.004.

[3] Zhang, X.; Liu, G.; Ma, J.; Wu, H.; Fu, B.; Gao, Y. Status and Prospect of Technical Development for Bridges in China. Chinese Science Bulletin 2016, 61,415-425, doi:10.1360/n972015-00912.

[4] Li, L.; Hu, X.; Liu, P.; Guo, H. Design Optimization of Long-span Bridge Structure System. Create Living 2020, 8-10, doi:10.3969/j.issn.2095-4085.2020.11.006.

[5] Gong, P. Analysis of the Cooperative Stress Situation of the Combined System Bridge Components. Communications Science and Technology Heilongjiang 2011, 249-250, doi:10.3969/j.issn.1008-3383.2011.10.200.

[6] Lin, Y. The Design Concept and Future Development of Modern Long Span Bridge. Journal of Chongqing Jiaotong Uni-versity (Natural Sciences) 2011, 30,1080-1083,1098, doi:10.3969/j.issn.1674-0696.2011.supp2.002.

[7] Zhang, Z.; Wan, Q. Cooperation of Cable-stayed Bridge with Other Bridges. Journal of Wuhan University of Technology (Transportation Science & Engineering) 2008, 32, 214-217, doi:10.3963/j.issn.2095-3844.2008.02.007.

[8] Mao, W.; Hu, X. Latest Developments and Prospects for Long-Span Bridges in China. Bridge Construction 2020, 50,13-19, doi:10.3969/j.issn.1003-4722.2020.01.003.

[9] Zhang, C.; Tian, Z. Calculation Method of Main Cable Force in Hoisting Stage of Steel Box Girder of Suspension Bridge. Journal of Transport Science and Engineering 2021, 37,91-97, doi:10.3969/j.issn.1674-599X.2021.03.014.

[10] Shao, Y.; Ge, Y.; Ke, S.; Yang, Y. Wind Tunnel Test on the Aerodynamic Stability of Super-long Span Suspension Bridge with a Main Span of 5000m. Journal of Experiments in Fluid Mechanics 2011, 25,38-44, doi:10.3969/j.issn.1672-9897.2011.06.008.

[11] Yang, S. Study on the Seismic Design of Large-span Bridge. Architectural Engineering Technology and Design 2014, 254-254, doi:10.3969/j.issn.2095-6630.2014.07.241.

[12] Yu, J. The Bridge Type Quadrant Diagram and New Basic Bridge Type: Umbrella Truss Bridge. Prestress Technology 2023, 1,15-29, doi:10.59238/j.pt.2023.03.002.