Hinge joint failure has a severe impact on the safety of prefabricated hollow slab bridges and the development of this type of bridge.
Studies on the stress performance and failure mode of shallow hinge joint structures under vehicle load are scarce in China.
The dimensions of the shallow hinge joint are shown in Figure 2(a).
As the hinge joint was completely damaged when the hollow slab was sent from the field to the lab, before test, the original hinge joint concrete was removed completely; part of bridge surface pavement layer was removed; and then, the blocks were hoisted to the support (one end of the test girder support was slab rubber support, and the other end was Teflon slide plate rubber support), as shown in Figure 3.
The main subject of this experimental study was the hollow slab hinge joint structure.
To understand the hinge joint load transmission effect, the hollow slab deflection measurement point placement is shown in Figure 7.
Deployment of Measurement Points at the Hinge Joint. The relative displacement difference is an important index to evaluate the hinge joint damage level and load-transfer performance.
Before pouring concrete at the hinge joint, measurement points for the hinge joint x direction strain are buried at the midspan in advance along the direction vertical to the bridge.
This trial shows that it is possible to detect and locate concrete cracking in concrete model hinge joints using sensors attached to the steel reinforcement bars and sensors attached to the concrete surface
Currently in the United Kingdom there are over 100 bridges containing hinge joint components, introduced to simplify and standardise designs.
The Transport Research Laboratory (TRL) created a model, of two hinge joint assemblies.
The hinge joint specimen was restrained as shown in Fig.