Table 1 Summary of strain gauge locations and expected measurements.
From: Research on mechanical properties of a new type of composite floor slab with split joint
Component | Strain Gauge Location | Expected Measurement Results |
|---|---|---|
Precast Slab | Concrete lower surface at the joint seam | Strain changes in concrete at the joint seam during loading, used to evaluate crack generation and development |
Center of the precast slab | Strain detection in the center area of the precast slab to evaluate the overall stress condition | |
Edge of the precast slab | Strain detection at the edge of the precast slab to evaluate the stress condition of the edge area | |
Reinforcing Steel Truss | Reinforcing steel truss inside the precast slab | Strain changes in the reinforcing steel truss during loading, focusing on the strain at the joint seam |
Upper chord of the steel truss | Detection of compressive strain in the upper chord to evaluate the stress distribution in the compression zone | |
Lower chord of the steel truss | Detection of tensile strain in the lower chord to evaluate the stress distribution in the tension zone | |
Web reinforcement of the steel truss | Detection of strain in the web reinforcement to evaluate its stress condition during loading | |
Crack-Resistant Reinforcement Mesh | Joint seam in the composite layer | Strain changes in reinforcement at the joint seam during loading, used to evaluate crack control effectiveness |
Center of the composite layer | Detection of strain in the center area of the composite layer to evaluate the overall stress condition | |
Edge of the composite layer | Detection of strain in the edge area of the composite layer to evaluate the stress condition of the edge area | |
Connection Reinforcement | Connection reinforcement at the joint seam | Strain changes in connection reinforcement during loading, used to evaluate the load transfer effect at the joint seam |
Distance from connection reinforcement to the center of the slab | Detection of strain in connection reinforcement at different positions to evaluate the stress distribution in the joint seam | |
Cast-in-Place Reinforcement | Lower surface of cast-in-place concrete | Strain changes in cast-in-place reinforcement during loading, used to evaluate the stress condition of the cast-in-place layer |
Center of the cast-in-place layer | Detection of strain in the center area of the cast-in-place layer to evaluate the overall stress condition | |
Edge of the cast-in-place layer | Detection of strain in the edge area of the cast-in-place layer to evaluate the stress condition of the edge area |
