Bridge engineering testing mainly includes two parts: engineering raw material testing and bridge main structure testing, of which raw materials need to be sent to the laboratory for testing, and the main structure is completed by on-site testing. Sinosteel National Inspection can inspect bridge inspection projects all over the country.

Test Range
Steel, steel/cable/cable, steel wire, prestressed anchors, fixtures and connectors, steel strands, steel wire ropes, bolts, cement, coarse and fine aggregates, concrete mix, mixing water, coatings, paints, mortar, grouting materials, concrete components, supports, expansion devices, rubber bedding, waterproof materials, tunnel friction tests, bellows, sealing materials, Welding electrode and wire flux, pipe friction resistance test, bridge bearing capacity, stress and strain, deflection displacement, crack, static and dynamic deflection, modal parameters (frequency, vibration mode, damping ratio), welding process evaluation, bridge support detection.

Test item
1.Relevant detection in the construction process (cracks, concrete compactness, single beam test, inspection and evaluation of overdue storage beams, construction monitoring, hydration heat monitoring of mass concrete, support force checking calculation, etc.)
2.Completion acceptance test (bridge load test, solid quality test, internal work data review, appearance inspection) and support installation quality inspection
3.Bridge technical condition assessment (regular inspection)
4.Load test and bearing capacity assessment of existing Bridges
5.Special bridge inspection (emergency inspection)
6.Bridge health monitoring during operation

Detection standard
JTG/T J21-01-2015  Code for load test of highway Bridges
CJJ99-2017  Technical standard for urban bridge maintenance
GB 50982-2014  Technical specification for monitoring of building and bridge structures
CJJ2-2008  Code for Construction and Quality acceptance of urban bridge engineering
CJJT 233-2015  Technical specification for inspection and evaluation of urban Bridges
JTT 822-2011  Lead core isolation rubber bearings for highway Bridges