我国桥梁钢结构的应用现状与展望

随着公路、铁路的大规模发展,我国已成为桥梁大国.列举了世界前5名已建成的大跨度斜拉桥、拱桥、梁式桥和悬索桥.我国是钢铁大国,但钢桥建设发展缓慢,应该顺应我国钢铁产业的发展,适时发展钢、钢-混凝土结构桥梁.波形钢腹板PC箱梁桥与传统PC箱梁桥和混凝土钢板箱梁桥相比,具有更好的力学性能,因此它是钢-混凝土组合梁桥应用的首选.

Application Situation and Development of Chinese Bridges Steel Structure

As the development of subway and railway,the bridge engineering is developing rapidly.The former five bridges of cable-stayed bridge,arc bridge,beam bridge and suspended cable bridge built with large-span are indicated.China has many steel factories,however,steel bridge has slow development,so proper development of steel and steel-concrete bridges are important.PC box girder with waveform steel web has better mechanical performance compared with traditional PC box girder and concrete box girder with steel p...