Language: English
Seismic Strengthening of Hospital Slab in Peru
1.2mm CFRP Plate
Structural assessment of the existing floor slabs revealed insufficient load-bearing capacity and inadequate flexural reserve, failing to meet current seismic code requirements; consequently, the slabs were reinforced using externally bonded carbon fiber plates.
Project Information
| Attribute | Details |
|---|---|
| Project Name | Hospital Maritza Campos - Structural Retrofit |
| Location | Peru |
| Structure Type | Reinforced concrete hospital building |
| Retrofit Area | Block A & B Floor Slabs |
| Completion Date | 2026 |
| Local Contractor | RAYCO (Peru) |
| Material Supplier | Horse Construction |
Key Structural Deficiencies
Insufficient flexural capacity in both primary directions under seismic loading combinations
Negative moment reinforcement deficiency at support regions for moment reversal during seismic events
Inadequate two-way slab action for load redistribution under lateral displacements
Strengthening Solution: CFRP Plate System
Design Standards
NTE E.030: Peruvian Seismic-Resistant Design Standard
NTE E.060: Peruvian Reinforced Concrete Design Standard
ACI 440.2R-17: Guide for the Design and Construction of Externally Bonded FRP Systems
ASTM D7565: Standard Test Method for Determining Tensile
Material Specification
| Component | Specification |
|---|---|
| CFRP Plate Type | Unidirectional pultruded carbon fiber plates |
| Fiber orientation | 0° (longitudinal) in each plate |
| Plate dimensions | 50mm width × 1.2mm thickness |
| Tensile strength | ≥ 2,400 MPa |
| Modulus of elasticity | ≥ 160 GPa |
| Structural adhesive | HM-120CP epoxy |
Photos from the Scene
Technical Advantages of CFRP Plate System
Enhanced slab action: Orthogonal layout of unidirectional plates creates effective grid reinforcement in both directions
Directional strength optimization: Each plate oriented to resist specific directional stresses
Flexible design: Independent optimization of longitudinal and transverse reinforcement ratios
The CFRP plate strengthening system successfully upgraded the hospital floor slab to meet NTE E.030 Immediate Occupancy requirements. The installation was completed by local contractor RAYCO using Horse Construction materials, demonstrating effective international collaboration in seismic retrofit projects. The lightweight solution provided significant structural capacity enhancement while maintaining full hospital operational continuity during construction.
