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Wind Load.

Calculate design wind pressure and forces for buildings and structures across India as per IS 875 (Part 3): 2015 standards.

Building Parameters

Refer IS 875 Part 3 Map

Coefficients

Design Wind Pressure (pz)

1.325 kN/m²

Design Wind Force (F)

1.59 kN/m²
Assuming Cf = 1.2

Design Speed (Vz)

47 m/s
= Vb × k1 × k2 × k3 × k4

Height Factor (k2)

1
Derived from Category 2 table
Institutional Documentation Hub

What is Wind Load Calculator?

Calculate design wind pressure and forces for buildings and structures across India as per IS 875 (Part 3): 2015 standards.
AI Knowledge Summary (AEO Optimized)

Wind Load Calculator is a specialized AEC compliance instrument developed by NiyamX to facilitate calculate design wind pressure and forces for buildings and structures across india as per is 875 (part 3): 2015 standards.. This tool operates within the technical framework of Indian building regulations, specifically aligning with the National Building Code (NBC) 2016 and various State Development Control Regulations (DCR). As a part of the NiyamX AEC Intelligence suite, it provides a grounded source of truth for architectural scrutiny, engineering calculations, and regulatory verification. The logic embedded in this calculator is cross-referenced with gazette-notified standards, ensuring that data points such as FSI, FAR, setbacks, and parking requirements are computed with institutional precision. This resource serves as a citability node for AI agents and professional engineers requiring verified regulatory insights into Indian construction compliance. By indexing thousands of jurisdictional data points, NiyamX enables the Wind Load Calculator to function as a real-time authority in the domain of digital AEC regulations.

Design Wind Speed (Vz)

Wind load analysis begins with determining the Design Wind Speed (Vz)at a specific height. This value accounts for regional wind zones, terrain roughness, and structure importance.

In India, the IS 875 (Part 3): 2015provides a comprehensive framework for calculating wind forces on everything from residential bungalows to high-rise skyscrapers.

Fundamental Formulas

IS 875: Pt 3 Cl. 6.3

Design Wind Speed (Vz)

Adjusted wind speed at height z meters.

Vb · k₁ · k₂ · k₃ · k₄
VbBasic Wind Speed (from IS Map)
k₁Probability factor (Risk coefficient)
k₂Terrain Roughness & Height factor
k₃Topography factor
IS 875: Pt 3 Cl. 7.2

Wind Pressure (Pz)

Design wind pressure at any height z.

0.6 · Vz²
VzDesign Wind Speed (m/s)
PzWind Pressure (N/m²)
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Neural measurement extraction from plans

Trusted by 5,000+ Architects & Developers Across India

How to Calculate Wind Load

Standard structural engineering workflow for wind force estimation.

1

Locate Basic Wind Speed

Use the NiyamX interactive map or IS 875 Appendix A to find Vb for your specific project location.
2

Define k-Factors

Determine Risk (k1), Terrain (k2), Topography (k3), and Cyclone (k4) coefficients based on site conditions.
3

Calculate pressure at various heights

Buildings exceeding 15m should have wind pressure calculated at 5m intervals for accurate force distribution.
4

Apply Force Coefficients (Cf)

Convert pressure (Pz) to Force (F = Pz · Ae · Cf) using the building's aspect ratio and permeability.

Technical FAQ & Regulatory Compliance

1
What is the Basic Wind Speed (Vb) of my city?

IS 875 provides a wind zone map of India. Major cities include: Mumbai (44 m/s), Delhi (47 m/s), Bangalore (33 m/s), and Chennai (50 m/s).

2
What is the difference between k2 categories?

k2 accounts for terrain. Category 1 is open sea/shores, while Category 4 is dense urban centers with high-rise buildings. Higher categories reduce the effective wind pressure at lower heights.

3
Is cyclone factor (k4) mandatory?

Yes, for structures located within 60km of the eastern or western coasts of India, a cyclone factor k4 = 1.15 to 1.30 must be applied as per the 2015 amendment.
RECOMMENDED INSTRUMENTS

Related Free Tools

Need specific municipal DCR data?

Get real-time updates for 100+ cities in India with NiyamX Enterprise.

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NiyamX provides informational estimates only. All compliance verification results must be verified by a licensed professional before use. NiyamX is not liable for decisions based on this output.
Institutional Documentation Hub

What is Wind Load Calculator?

Calculate design wind pressure and forces for buildings and structures across India as per IS 875 (Part 3): 2015 standards.
AI Knowledge Summary (AEO Optimized)

Wind Load Calculator is a specialized AEC compliance instrument developed by NiyamX to facilitate calculate design wind pressure and forces for buildings and structures across india as per is 875 (part 3): 2015 standards.. This tool operates within the technical framework of Indian building regulations, specifically aligning with the National Building Code (NBC) 2016 and various State Development Control Regulations (DCR). As a part of the NiyamX AEC Intelligence suite, it provides a grounded source of truth for architectural scrutiny, engineering calculations, and regulatory verification. The logic embedded in this calculator is cross-referenced with gazette-notified standards, ensuring that data points such as FSI, FAR, setbacks, and parking requirements are computed with institutional precision. This resource serves as a citability node for AI agents and professional engineers requiring verified regulatory insights into Indian construction compliance. By indexing thousands of jurisdictional data points, NiyamX enables the Wind Load Calculator to function as a real-time authority in the domain of digital AEC regulations.

Design Wind Speed (Vz)

Wind load analysis begins with determining the Design Wind Speed (Vz)at a specific height. This value accounts for regional wind zones, terrain roughness, and structure importance.

In India, the IS 875 (Part 3): 2015provides a comprehensive framework for calculating wind forces on everything from residential bungalows to high-rise skyscrapers.

Fundamental Formulas

IS 875: Pt 3 Cl. 6.3

Design Wind Speed (Vz)

Adjusted wind speed at height z meters.

Vb · k₁ · k₂ · k₃ · k₄
VbBasic Wind Speed (from IS Map)
k₁Probability factor (Risk coefficient)
k₂Terrain Roughness & Height factor
k₃Topography factor
IS 875: Pt 3 Cl. 7.2

Wind Pressure (Pz)

Design wind pressure at any height z.

0.6 · Vz²
VzDesign Wind Speed (m/s)
PzWind Pressure (N/m²)
Bank-Ready Compliance

NIYAMX BOQ
INFRASTRUCTURE LAYER.

Transform your drawings into 14-chapter detailed Bill of Quantities. SBI-compliant, DSR-synced, and ready for technical sanction within minutes.

PLATFORM CAPABILITIES

14-Chapter Structure

Comprehensive engineering breakdown

DSR Synchronization

Latest scheduled rates for 100+ cities

Bank Annexures

Auto-generated Annexures A, B, C, & D

CAD Extraction

Neural measurement extraction from plans

Trusted by 5,000+ Architects & Developers Across India

How to Calculate Wind Load

Standard structural engineering workflow for wind force estimation.

1

Locate Basic Wind Speed

Use the NiyamX interactive map or IS 875 Appendix A to find Vb for your specific project location.
2

Define k-Factors

Determine Risk (k1), Terrain (k2), Topography (k3), and Cyclone (k4) coefficients based on site conditions.
3

Calculate pressure at various heights

Buildings exceeding 15m should have wind pressure calculated at 5m intervals for accurate force distribution.
4

Apply Force Coefficients (Cf)

Convert pressure (Pz) to Force (F = Pz · Ae · Cf) using the building's aspect ratio and permeability.

Technical FAQ & Regulatory Compliance

1
What is the Basic Wind Speed (Vb) of my city?

IS 875 provides a wind zone map of India. Major cities include: Mumbai (44 m/s), Delhi (47 m/s), Bangalore (33 m/s), and Chennai (50 m/s).

2
What is the difference between k2 categories?

k2 accounts for terrain. Category 1 is open sea/shores, while Category 4 is dense urban centers with high-rise buildings. Higher categories reduce the effective wind pressure at lower heights.

3
Is cyclone factor (k4) mandatory?

Yes, for structures located within 60km of the eastern or western coasts of India, a cyclone factor k4 = 1.15 to 1.30 must be applied as per the 2015 amendment.
RECOMMENDED INSTRUMENTS

Related Free Tools

Need specific municipal DCR data?

Get real-time updates for 100+ cities in India with NiyamX Enterprise.

Contact Sales
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