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This calculator does wind loading analysis for buildings and structures. It is split into five sub-sections depending on application. For each, wind pressure coefficients and parameters are selected or calculated in order to compute the net design wind pressures. 

This calculation has been written in accordance with ASCE 7-10. An updated revision, ASCE 7-22 exists. Any discrepancies between the two revisions are noted.

Wind Load (Any Height)

Wind Load (Low-Rise)

Wind Load (Wall Components & Cladding)

Wind Load (Roof Components & Cladding)

Wind Load (Open Building)

Buildings and their components must be designed to withstand code-specified wind loads. Wind load is the force exerted on a structure by the wind.

ASCE 7 provides methods for calculating the design wind pressure based on two categories of applications: the main 

 (MWFRS) or components and claddings (C&C).

The process to calculate the wind load involves:

❗The ground elevation factor, Ke is a new factor in ASCE 7-22. It is not considered in this calculator, though ASCE 7-22 permits Ke = 1 for all elevations and so the calculator is still valid. 

ASCE 7-10 provided two methods to calculate the design wind pressures: a simplified procedure and an analytical procedure. ASCE 7-22 has removed the simplified method. This calculator is based on the ASCE 7-10 analytical procedure that is still valid in ASCE 7-22.

ASCE 7-22 provides four separate chapters for determining the design wind pressures, based on application:

Wind loading analysis in all five sub-sections of this 

 involve the following input parameters. 

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Program is based on Alex Tomanovich's "ASCE705W" program and modified by David Taylor and William Fultz. Version 2.4 (10/20/2015). Taken from https://www.steeltools.org/load.php.

Optimize Designs with Free-to-Use Wind Loading Calculator to ASCE 7-10. Try our online engineering tool for accurate results and efficient solutions.

Wind Loading Calculator to ASCE 7-10 - CalcTree

This sub-page determines wind load of open buildings

 as per ASCE 7-10 Chapter 30 Part 3. Wind loads are determined for the 

Net design wind pressures, p for open structures for varying values of the Force Coefficient, Cf = 1.2, 1.6, 1.8 and 2.0.

Table (2)

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ASCE710W_v2_4

Period Coefficient, Ct =

Structure Length, L

Damping Ratio, β

Exposure category

Wind Speed, V

Topographic Factor, Kzt

Hurricane Region?

Directionality Factor, Kd

Frequency, f

Simplified Gust Factor, G for rigid structure

Calculated Gust Factor, G for flexible structure

Chosen Gust Factor, G

Building Classification

Height of structure

Structure Width, B

Calculated Gust Factor, G for rigid structure

"ASCE710W" --- ASCE 7-10 CODE WIND ANALYSIS PROGRAM

Ridge Height, hr =

Building Length =

Roof Type =

User Input for Height, z (ft.):

(Gust Factor, Sect. 6.5.8)

  2.  Is h <= Lesser of L or B?

+GCpi Coef. =

Zones 2/2E dist. =

Table (1)

(Fig. 27-4.1)

(Fig. 27.4-1)

Direct. Factor, Kd =

Eave Height, he =

Effective Area, Ae =

Enclosed? (Y/N)

Overhangs? (Y/N)

Wind Speed, V =

Building Width =

Force Coefficient, Cf

Gross Area =

Period Coef., Ct =

Roof Zone 2 =

Roof Zone 2E =

Roof Zone 3 =

Roof Zone 3E =

Roof Zone 5E =

Side Walls Cp =

Solid Area =

Topo. Factor, Kzt =

Wall Zone 1 =

Wall Zone 1E =

Wall Zone 4 =

Wall Zone 4E =

Wall Zone 5 =

Wall Zone 6 =

Wall Zone 6E =

Wind Direction =

Windward Wall Cp =

gq =

gv =

input83

input85

qz =

-GCpi Coef. =

1.  Is h <= 60' ?

2*a =

Applicable L/B ratio =

CALCULATIONS:

Gust Factor, G =

ASCE710W_v2_4.xlsx

Structure height, h ≤ 500 ft (= 150 meters)

Applicable for open buildings WITHOUT a roof. Open building defined as a building that has each wall at least 80% open

Sign convention of wind pressures: + is acting toward the surface, - is acting away from the surface




	0	0.85	53.38	45.38	54.45	72.6	81.68	90.75
	15	0.85	53.38	45.38	54.45	72.6	81.68	90.75
	20	0.9	56.72	48.21	57.85	77.13	86.78	96.42
	25	0.95	59.44	50.53	60.63	80.84	90.95	101.06
	30	0.98	61.77	52.5	63.01	84.01	94.51	105.01
	35	1.01	63.81	54.24	65.08	86.78	97.63	108.47
	40	1.04	65.63	55.78	66.94	89.25	100.41	111.57
	45	1.07	67.27	57.18	68.62	91.49	102.93	114.37
	50	1.09	68.78	58.47	70.16	93.55	105.24	116.93
	55	1.12	70.18	59.65	71.58	95.44	107.37	119.3
	60	1.14	71.48	60.75	72.9	97.21	109.36	121.51
	70	1.17	73.83	62.76	75.31	100.41	112.96	125.52
	80	1.21	75.94	64.55	77.46	103.28	116.18	129.09
	90	1.24	77.84	66.17	79.4	105.87	119.1	132.34
	100	1.27	79.59	67.65	81.18	108.24	121.77	135.3
	120	1.32	82.7	70.3	84.36	112.48	126.54	140.6
For z = h:	125	1.33	83.42	70.91	85.09	113.45	127.63	141.81

Assumptions

⬇️ Inputs

Building properties

Suggested range of β = 0.010-0.070

Suggested range = 0.020-0.035

Wind and site properties

⬆️ Outputs

Gust Effect Factor, G

⬆️ Design wind load pressures, p