| Title | इस्पात प्रवेश द्वार ढाँचा (Steel Portal Frame)Rare Ispāt praveś dvār ḍhāñcā Steel Portal Frame |
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| Description | इस्पात प्रवेश द्वार ढाँचा (Steel Portal Frame), utilizing लोहा [1] (Lohā, iron/steel), is a structural system prevalent in late 20th and 21st-century Indic architecture for large-span structures. This फ़ौलादी (Faulādī, steel) structure, often prefabricated, provides roofing for industrial buildings, community halls, and warehouses. The material, sourced from iron ore deposits across the Indian subcontinent, undergoes processing to achieve a yield strength of 250-350 MPa and a tensile strength of 400-550 MPa. Density is approximately 7.85 g/cm³ with a Young's Modulus of 200 GPa. While not traditionally found in ancient Indic heritage architecture, its modern application echoes the principles of creating large, open spaces seen in Mauryan and Gupta-era assembly halls. Conservation involves addressing corrosion, a key degradation factor. Restoration requires careful material matching to maintain structural integrity. The इस्पात प्रवेशिका संरचना (Ispāt Praveshika Sanrachna, steel entrance structure) demands regular inspection and protective coatings to ensure longevity. |
| Also Known As | Steel Portal Frame Ispāt praveś dvār ḍhāñcā Steel Portal Frame Steel Entrance Frame Steel Door Frame Structure इस्पात प्रवेश द्वार ढाँचा इस्पात का प्रवेश द्वार ढाँचा लोहे का प्रवेश द्वार ढाँचा फ़ौलादी प्रवेश द्वार ढाँचा इस्पात प्रवेशिका संरचना प्रवेश द्वार इस्पात ढाँचा |
| Tags | Steel Portal Frame Structural Steel Prefabricated Structure Roofing System Corrosion Industrial Building Modern Architecture |
| Material ID | INHFMAT-328046800-20-11-25-IP |
| URI | https://www.inheritage.foundation/aat/material/steel-portal-frame |
| API Endpoint | https://inheritage.foundation/api/v1/aat/materials/steel-portal-frame |
| Total Sites | 1 |
| Primary Sites | 1 |
| Created | November 20, 2025 |
| Last Updated | November 28, 2025 |
| Types | Structural Steel Prefabricated Structure |
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| Regions | India |
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| Time Periods | Late 20th Century 21st Century |
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| Sources | Steel Mills (India) Fabrication Workshops |
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| Properties | Yield Strength: 250-350 MPa Tensile Strength: 400-550 MPa Density: 7.85 g/cm³ Young's Modulus: 200 GPa |
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| Uses | Roofing Systems for Large-Span Structures Industrial Buildings Community Halls Warehouses |
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| Materials | Steel Welding Materials Corrosion Resistant Coatings Bolts and Fasteners |
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| Styles | Modern Architecture Industrial Architecture |
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| Categories | Community Hall Industrial Building Warehouse |
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| Notes |
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| Title | Type | Notes |
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| Bureau of Indian Standards (BIS) Codes | Standard | Steel structures design and fabrication guidelines |
| Site Name | Status | Usage | Confidence |
|---|---|---|---|
| Shree Ghanapathy Temple Wimbledon | Primary | Roof | 100% |