T/CCPB 001-2024 Prefabricated Concrete Stairs for Residential Use

Scope

Main technical content: 1. **Applicable scope**: Applicable to multi-story and high-rise residential buildings in areas with seismic fortification intensities of 6, 7, and 8, including residential projects with shear wall structural systems. Other types of buildings may also refer to this collection for use when meeting its requirements. 2. **Design conditions**: Including the safety grade of concrete structures, the structural importance coefficient, the design service life, and the crack control grade of concrete components. 3. **Material requirements**: Specifies the concrete strength grade of prefabricated components, the strength grade of cast-in-place concrete, and the performance of cement-based grouting materials. 4. **Component design**: Involves the types, dimensions, and reinforcement of prefabricated concrete stair sections, including ordinary concrete wide stair sections, prestressed concrete scissor stair sections, prestressed concrete slab-type shear wall stair sections, and special concrete beam-type shear wall stair sections. 5. **Requirements for fabrication, transportation, stacking, and installation**: Includes the fabrication, transportation, stacking, and installation of prefabricated concrete components, which must comply with national standards and the technical regulations for precast concrete structures. 6. **Quality inspection**: The quality inspection of prefabricated concrete components must comply with current national standards. 7. **Selection table**: Provides a selection table for different types of stair sections, including parameters such as the number of floors, stairwell width, stair section width, step height, step width, stair section weight, and concrete volume. 8. **Detailed drawings and reinforcement diagrams**: Provides detailed drawings such as architectural drawings, installation diagrams, formwork diagrams, and reinforcement diagrams for various stair sections. 9. **Patent description**: Possible patent

Development Information

Related Standards