👉Causes, Evaluation, and Repair of Cracks in Concrete Structures

ACI 224.1R-07


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Via Yonatan Tadesse PMP

@etconp

👉selecting and specifying concrete surface preparation for sealers coatings polymer overlays and concrete repaire

📜Guideline no. 310.2R

From: International Concrete Repair Institute

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Via Yonatan Tadesse PMP

@etconp

👉Structural Roof & Frame Types

1. Tapered Column Clear Span

- Ridge line with no interior supports
- Maximizes open interior space
- Ideal for warehouses & large halls

2. Multi Gable System

- Multiple gable frames connected
- Modular width expansion possible
- Used in industrial sheds & factories

3. Arched Multi Span (Flat Multi-Bay)

- Flat arched frames across bays
- Efficient load distribution
- Suitable for wide-span structures

4. Arched Multi Span (Curved Arch Frame)

- Curved arch system with modules
- Aesthetic appeal + structural strength
- Common in auditoriums & sports arenas

5. Multi Span “1”

- Multi-span gable roof
- Economical for medium-width buildings
- Flexible for extensions

6. Mono Slope

- Single slope roof system
- Simple design, cost-effective
- Often used in small sheds & annexes

7. Complex Residential Roof (Hip + Steel Truss)

- Hip roof with steel truss support
- Strong against wind loads
- Popular in residential & institutional buildings

8. Multi Span “2” (Sawtooth Roof)

- Sawtooth profile for natural lighting
- Common in factories & workshops
- Energy-efficient design

9. Multi Span “3” (Flat Multi-Bay)

- Repeated flat bay modules
- Scalable for large industrial complexes
- Easy to construct & expand

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