Bridge subdivisions

Foundation: piles?

Substructure: columns, cover beams, tie beams, ear walls, back walls?

Upper structure: supports, prefabricated panels , bridge deck paving, expansion joints, hinged joints, continuous joints

Auxiliary structures: anti-collision guardrails, drainage pipes, lap boards, tapered slopes, slope protection, platform back filling

In terms of maintenance

In bridge maintenance inspections, new precision measuring instruments are used, such as using acoustic measurement methods to measure structural material defects and elastic modulus; hand-held metallographic cameras to inspect steel materials. The crystal structure allows early reinforcement to prevent problems before they occur, thereby extending the service life of the bridge.

Bridge engineering has always been under the comprehensive influence of production development and various scientific and technological advances, and has been developing continuously in accordance with the principles of applicability, safety, economy and beauty.

Reference for the above content: Baidu Encyclopedia-Bridge Engineering