ब्रिज गर्डर फैब्रिकेशन India: IS Standards के साथ संपूर्ण Guide
ब्रिज गर्डर फैब्रिकेशन India: संपूर्ण Guide
Bridge girders भारत के railway, highway और urban infrastructure की backbone हैं। ये bridge deck से load को piers तक transfer करते हैं।
Bridge Girders क्या हैं?
Large primary load-carrying beams जो design किए जाते हैं:
- IS 800:2007 - स्टील construction code
- IRS Bridge Rules - Railway bridges के लिए
- IRC 6:2017 - Road bridges के लिए
- AWS D1.5 - Bridge welding code
Girder Types
Plate Girders: IS 2062 E250/E350 steel से welded, 20-50m spans Box Girders: Urban flyovers के लिए I-Section: छोटे spans (30m तक) के लिए economical
Fabrication Process
Material: IS 2062:2011 Grade E250 (240 MPa) या E350। Material Test Certificates (MTCs) आवश्यक।
Cutting: CNC flame cutting per ISO 8501
Welding: IS 9595:2016 के अनुसार low-hydrogen electrodes। Welders हर 6 महीने re-qualified।
NDT Testing: Ultrasonic (UT), Magnetic Particle (MT) per IS 7280:2015
Surface Treatment: Shot blasting Sa 2.5, painting per IS 9361:2011
Quality Standards
IS 800, IS 2062, IS 7280, IS 9595, IRS Bridge Rules, IRC 6, RDSO Specifications, AWS D1.5
Certified Fabricator क्यों?
✓ ISO 9001:2015 certification ✓ RDSO Approval (railway projects के लिए mandatory) ✓ In-house IS 7280 NDT testing ✓ Experienced team (BHEL, L&T, SAIL references)
Challenges और Solutions
Dimensional Accuracy: Precision jigs use करें Welding Quality: Low-hydrogen electrodes, 100% inspection Transportation: Route planning, heavy-haul contractors
Kothari Chemicals: 25+ years, 100+ projects, RDSO approved, ISO 9001 certified।
Keywords: ब्रिज गर्डर फैब्रिकेशन, IS 2062 स्टील, IRS bridge, RDSO fabricator, रेलवे ब्रिज निर्माण
About Engineering Team
The Engineering Team at Kothari Chemicals Engineering Division brings decades of combined experience in steel fabrication, quality assurance, and project management. We're committed to sharing knowledge that helps our industry grow.
