Structural Engineering & Seismic Design in Itahari
Earthquake-resistant RCC frames, structural steel design, and dynamic analysis per NBC 105:2025 across Nepal.
Structural Engineering Services in Itahari, Sunsari & Nepal
Structural engineering is the scientific foundation of building safety and earthquake resilience. In Koshi Province, where active tectonic faults require strict compliance with Nepal Building Code NBC 105:2025 and IS 456:2000, Unique Solutions Engineering Consultancy (USEC) delivers high-precision finite element modeling, modal response spectrum analysis, and complete rebar detailing.
From multi-story reinforced concrete (RCC) residential dwellings and commercial retail complexes to industrial steel trusses and cinema multiplexes, our licensed structural engineers ensure every beam, column, foundation, and shear wall is optimized for safety, ductility, and material economy.
Structural Engineering Scope of Works
1. NBC 105:2025 Earthquake Response Spectrum Analysis
We execute 3D modal dynamic analysis in CSI ETABS and STAAD-Pro. Ground motions in Koshi Province (PGA 0.35g to 0.45g) are evaluated against Ductility Class Medium (DCM) and High (DCH) parameters to eliminate soft-story and torsional irregularities.
NBC 105:2025 Clause 5.4 Compliant2. Geotechnically Grounded Foundation Engineering
Foundation design is never estimated from rules of thumb. Every isolated footing, strap beam, mat/raft slab, or pile foundation is directly computed from site-specific Standard Penetration Test (SPT) borehole data per IS 6403 to prevent differential settlement.
IS 6403 & IS 8009 Settlement Checks3. Ductile Detailing & Bar Bending Schedules (BBS)
Clear, millimeter-accurate 2D reinforcement placement drawings conforming to IS 13920:2016 ductile detailing standards. We provide complete Bar Bending Schedules (BBS) enabling contractors to eliminate rebar wastage on site.
IS 13920:2016 Ductile DetailingStructural Deliverables Checklist
- Certified Structural Calculation Report
- Foundation Layout & Rebar Schedules
- Plinth & Floor Beam Longitudinal Sections
- Column Schedules with Confining Ties
- Slab Bottom/Top Reinforcement Plans
- Staircase Cross-Sections & Landings
- Comprehensive Bar Bending Schedule (BBS)
- NEC Licensed Engineer Seal & Signature
Structural Engineering FAQs
Why is NBC 105:2025 compliance mandatory for structural design in Nepal?
NBC 105:2025 is the legally mandated seismic code in Nepal promulgated by DUDBC. It updates the 753 local level seismic hazard factors and enforces dynamic modal analysis to ensure buildings survive earthquake shocks without catastrophic collapse.
How long does a full structural design take for a residential building?
A typical 2 to 4-storey residential RCC frame structural calculation report and detailed drawings are completed within 5 to 8 working days following the final architectural freeze and soil report.
Consult a Structural Engineer
Have an architectural plan that needs certified structural calculations? Contact our structural engineering wing.
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