stantec consulting ltd. 100-300 hagey boulevard, waterloo ...€¦ · 100-300 hagey boulevard,...

Stantec Consulting Ltd. 100-300 Hagey Boulevard, Waterloo ON N2L 0A4

June 7, 2017 File: 1614-13396/29

Attention: Mr. Adam Ripper Development Engineering City of Cambridge 50 Dickson Street, 3rd Floor P.O. Box 669 Cambridge ON N1R 5W8

Dear Mr. Ripper,

Reference: 825-875 Main Street, Cambridge ON Water Distribution / Fire Flow Analysis

1 INTRODUCTION

A fire flow analysis has been undertaken for the proposed 825-875 Main Street Residential Site Plan development in Cambridge, Ontario. The subject property is located directly south of Main Street, northwest of the future Sparrow Avenue and Nottinghill Drive intersection. The subject property is bounded by existing residential lands to the south and east (Greengate Subdivision), residential lands to the west and Main Street to the north. Please see Figure 1.0 for a Site Location Plan.

The property is currently used for low density residential purposes complete with a commercial moving facility. The proposed development concept includes the addition of 95 to 110 condominium townhome units complete with asphalt driveway and parking areas, amenity areas and a stormwater management system. A 0.33 hectare residential block, owned by others is located along the easterly property boundary. There is provision in the design of the subject Site Plan for the connection of the 0.33 hectare parcel. As such, the domestic and fire flow demands from the 0.33 hectare residential block have been included in the analysis of the subject property. It has been estimated that approximately 20 condominium towmhome units can be constructed on the 0.33 hectare residential block. The preliminary Site Servicing and Grading Plans for the site can be found in Appendix A.

The site is proposed to be serviced from Sparrow Avenue which is located in Cambridge Pressure Zone 1A with a hydraulic grade line (HGL) of approximately 349.5 m. As part of the Greengate Subdivision, a 200 mm diameter watermain has been constructed on Sparrow Avenue complete with a 200 mm diameter stub extending into the southerly portion of the subject property. The proposed watermain network on site is to connect to the existing 200 mm diameter stub.

Fire coverage will be provided by proposed onsite hydrants. The proposed watermain size ranges from 150 to 200 mm in diameter for sections providing both domestic and fire protection and 50-100 mm in diameter for localized domestic sections.

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June 7, 2017 Mr. Adam Ripper Page 2 of 9


This analysis reviews the required water and fire flow demands for the proposed development and determines the required watermain size to service the proposed site.

2 METHODOLOGY

The fire flow analysis consists of the following components:

• Determine fire flow demand requirements using the Ontario Building Code (OBC), and cross-reference with the recommendations of the Fire Underwriters Survey (FUS), Water Supply for Public Fire Protection, 1999, Part II, Guide for Determination of Required Fire Flow

• Undertake a fire flow simulation under maximum day plus fire

• Address velocities during fire flow conditions with respect to the recommendations of the Region of Waterloo.

• Ensure adequate pressure and fire flow are available to satisfy both the Ministry of Environment and Climate Change(MOECC), FUS and/or OBC criteria

2.1 BOUNDARY CONDITIONS

Hydraulic grade line information for the subject site is based on information received from the Region of Waterloo. In correspondence dated February 15, 2017, HGL’s representing the boundary conditions were provided. Correspondence can be found in Appendix B. For fire flow scenarios, the Region of Waterloo provided a table with the available flow and the respective residual pressure. This data was used in the WaterCAD model to provide the respective pressure at a given flow.

The normal operating pressures on site range between 487 – 516 kPa. Domestic demand calculations used in the modeling have been provided in Appendix C.

2.2 FIRE FLOW DEMAND

To assess the fire flow requirements for the proposed buildings, both the Ontario Building Code (OBC) and the Fire Underwriters Survey (FUS) have been referenced. It should be noted that specific building details were not available at the time of preparation for this report. Therefore, a conservative estimate for the building materials, fire separations, and contents was assumed, based on experience, for typical townhouse developments.



2.3 ONTARIO BUILDING CODE

Using the OBC terminology, the classification of the largest, worst-case building is Group C, of combustible construction with floor assemblies and load bearing walls as fire separations. Based on an average building height, separation distance from other structures, and gross floor area of each unit/structure, the required OBC fire flows were calculated as shown on Table 1. These fire flows should be provided with a minimum residual pressure of 140 kPa, as per the MOE guidelines. See Appendix C for OBC calculations.

2.4 FIRE UNDERWRITERS SURVEY

A fire flow demand analysis was completed for each type of proposed structure. The buildings were assumed to be of ordinary wood-frame, brick and metal siding exterior construction. The floor area used in the analysis conservatively assumes that there are no rated fire walls subdividing units, and therefore represents the entire row unit. The contents of the buildings are considered limited combustible, as defined in the FUS guidelines, consisting of normal low-risk residential occupancy. There will be no sprinkler system installed. The exposure charges are based on separation distance from adjacent buildings. Based on the above criteria, the fire flow demands were calculated as shown on Table 1 below using the FUS method. See Appendix C for FUS calculations.

Table 1 – Fire Flow Demand Summary

Structure Type OBC Fire Flow (L/s) FUS Fire Flow (L/s) Minimum Fire Flow Used in Analysis (L/s)

3-Storey 6-Unit Townhome (Rear Lane) 60 114 114

3-Storey 7-Unit Townhome 90 142 142

2-Storey 8-Unit Townhome (Future) 90 167 167

3-Storey 8-Unit Townhome (Rear Lane) 105 140 140

3-Storey 16-Unit Townhome 90 164 164



3 RESULTS

A fire flow analysis was performed using the boundary conditions and demand criteria outlined above. It was determined that the site can be provided with the required fire flows while generally adhering to Region of Waterloo and MOECC residual pressure of 140 kPa (20 psi) and maximum pipe velocity criteria of 5 m/s. A schematic of the model and detailed output report can be found in Appendix D.

Table 2 below summarizes the results of the modeling with the proposed servicing configuration.

Table 2 – Residual Pressure Modeling Results During Fire Flow (kPa)

Node Fire Flow Required (L/s)

Fire Flow Delivered (L/s)

Residual Pressure at Fire Node (kPa)

Residual System Pressure (kPa)

Fire Flow Criteria Met

J-1 167 >172 321 297 Yes J-2 167 >172 171 197 Yes J-3 164 167 140 237 Yes J-4 164 >172 170 206 Yes J-5 167 >172 369 345 Yes

Based on the results as shown above, it is the general conclusion that adequate pressure and fire flows can be provided to the site.

The Region of Waterloo recommends maintaining the velocity in watermains below 5 m/s where possible, to prevent transient pressures from damaging the pipe system. The watermain configuration for the site can generally deliver the required fire flow to the onsite hydrants while maintaining the majority of the velocities of less than or equal to 5 m/s. However, there are couple of locations where the pipe velocity is 5.97 m/s and 5.35 m/s under the maximum fire flow scenario. These are in localized areas for short sections of pipe and are considered acceptable.

4 CONCLUSIONS AND RECOMMENDATIONS

From the above analysis, the following conclusions can be drawn:

• The proposed structures on site will consist of 95 to 110 townhome units constructed of ordinary combustible construction, low hazard occupancy, and will not have a sprinkler system

• The site is to be serviced via the existing 200 mm diameter watermain stub located at the south portion of the property boundary, connected to the 200 mm diameter watermain located on Sparrow Avenue.



• The on-site water distribution system ranges in size from 150 mm to 200 mm in diameter forwatermains providing both domestic and fire protection and 50-100 mm in diameter fordedicated domestic lines.

• Both the OBC and the FUS recommended fire flows can be provided by onsite hydrants whileadhering to the minimum Region of Waterloo and MOECC recommended residual pressure of140 kPa (20 psi)

• Watermain velocities within the proposed site are generally below 5 m/s

• The sufficient residual pressures during fire flow indicate that fire flow capability will not exceedthe water supply available under the existing Cambridge Pressure Zone 1A conditions

This report has been prepared for, and is submitted, with the intention of obtaining approval from the City of Cambridge.

Should you have any questions or concerns, please do not hesitate to contact the undersigned.

All of which is respectfully submitted;

STANTEC CONSULTING LTD.

Sergio Zaga, M.Eng. Matt Ninomiya, MBA, P.Eng. Project Coordinator Project Manager Phone: (519) 575-4128 Phone: (519) 585-7294 Fax: (519) 579-6733 Fax: (519) 579-6733 [email protected] [email protected]

Attachment

ae \\cd1004-f01\work_group\01614\active\161413396\design\report\fire flow analysis report\rpt_fireflow_20170607_sz.docx

Appendix A Grading and Servicing Plans

Appendix B Region of Waterloo Correspondence

Date: February 15, 2017 File #: E18-10/CA.10

Jason Bomans, B. Tech (Eng) C.E.T. Project Coordinator Stantec 100-300 Hagey Boulevard Waterloo, ON N2L 0A4 t. 519.585.3835 e. [email protected] Dear: Jason Re: 825-875 Main St Cambridge Please find the results of the modeling simulations for boundary conditions requested on January 11, 2017. The results included a figure showing the locations of the nodes from the Region’s model. The results represent existing conditions with no additional watermains proposed to be constructed in 2017. Attached are a series of spreadsheets containing results for Average Day, Maximum Day demands and available fire flows for node JCT_40961 located near 32 Sparrow Ave. The diurnal 24 hour demand distribution accounts for the minimum hour and peak hour peaking factors. The minimum hourly demand on the average day represents the minimum hour, and the maximum hourly demand on the maximum day represents the peak hour. Demands as applied to nodes:

Node Pressure Zone Elevation Residential Demand (L/s)

Average Day Maximum Day JCT_40961 CAM 1A 296.0 mASL 1.09 2.17

A fire flow analysis shows the maximum flow available at JCT_40961 is 285.7 L/s with a design pressure of 14.0 m during the maximum day scenario while maintaining the minimum design pressure of 14 m (140 kPa) at all nodes within the pressure zone. If you have any questions, please contact me. Kevin Dolishny P.Eng. Senior Project Engineer, Servicing and Development Planning t. 519.575.4757 x 3862 e-mail: [email protected] c. John Holowackyj, Region of Waterloo

AvgDayMaxDay

CAM 1a Infowater

JCT_40961 Average Day 24 Hour Simulation JCT_40961 Maximum Day 24 Hour Simulation

Time Demand (L/s) Head (m) Pressure (m) Time Demand (L/s) Head (m) Pressure (m)00:00 hrs 0.63 349.09 53.09 00:00 hrs 1.08 349.09 53.09

01:00 hrs 0.52 349.09 53.09 01:00 hrs 0.74 349.09 53.09

02:00 hrs 0.65 349.09 53.09 02:00 hrs 0.93 349.09 53.09

03:00 hrs 0.69 349.09 53.09 03:00 hrs 1.26 349.09 53.09

04:00 hrs 0.63 349.09 53.09 04:00 hrs 1.17 349.09 53.09

05:00 hrs 0.60 349.09 53.09 05:00 hrs 1.26 349.09 53.09

06:00 hrs 0.84 349.09 53.09 06:00 hrs 1.91 349.07 53.07

07:00 hrs 1.21 349.07 53.07 07:00 hrs 2.93 349.03 53.03

08:00 hrs 1.38 349.06 53.06 08:00 hrs 2.97 349.03 53.03

09:00 hrs 1.30 349.07 53.07 09:00 hrs 2.37 349.05 53.05

10:00 hrs 1.34 349.07 53.07 10:00 hrs 2.17 349.06 53.06

11:00 hrs 1.34 349.07 53.07 11:00 hrs 2.21 349.06 53.06

12:00 hrs 1.26 349.07 53.07 12:00 hrs 2.15 349.06 53.06

13:00 hrs 1.22 349.07 53.07 13:00 hrs 2.15 349.06 53.06

14:00 hrs 1.13 349.07 53.07 14:00 hrs 1.97 349.07 53.07

15:00 hrs 1.11 349.08 53.08 15:00 hrs 1.87 349.07 53.07

16:00 hrs 1.19 349.07 53.07 16:00 hrs 2.19 349.06 53.06

17:00 hrs 1.25 349.07 53.07 17:00 hrs 2.47 349.05 53.05

18:00 hrs 1.40 349.06 53.06 18:00 hrs 2.78 349.04 53.04

19:00 hrs 1.49 349.06 53.06 19:00 hrs 3.25 349.02 53.02

20:00 hrs 1.52 349.06 53.06 20:00 hrs 3.65 349.00 53.00

21:00 hrs 1.37 349.06 53.06 21:00 hrs 3.80 348.99 52.99

22:00 hrs 1.19 349.07 53.07 22:00 hrs 2.97 349.03 53.03

23:00 hrs 0.89 349.08 53.08 23:00 hrs 1.82 349.07 53.07

Average Day HGL: 349.07 Maximum Day HGL: 349.06

Minimum Hour: 349.09 Peak Hour: 348.99

825-875 Main St CAM results 2/7/2017

Hydrant Curve

Available Flow (L/s)

Residual Pressure (m)

Fire Flow Analysis

0.0 53.1 Fire Flow Node: JCT_4096110.0 53.0 Design Flow (L/s): 285.720.0 52.7 Design Pressure (m): 14.030.0 52.440.0 52.050.0 51.460.0 50.8 Design Flow: The final adjusted flow at the node to maintain the minimum design70.0 50.1 pressure (14m (140 kPa)) at ALL locations within the pressure zone.80.0 49.390.0 48.4 Design Pressure: The lowest allowable pressure at the node to maintain the minimum design

100.0 47.4 pressure (14m (140 kPa)) at ALL locations within the pressure zone.110.0 46.3120.0 45.2 Critical Node ID: The constraining node within the pressure zone that drops to the minimum design130.0 43.9 pressure of (14m (140 kPa)) during the design flow.140.0 42.6150.0 41.2160.0 39.7170.0 38.2180.0 36.5190.0 34.8200.0 33.0210.0 31.2220.0 29.2230.0 27.2240.0 25.1250.0 22.9260.0 20.7270.0 18.4280.0 16.0285.7 14.0

0.0

10.0

20.0

30.0

40.0

50.0

60.0

0.0 50.0 100.0 150.0 200.0 250.0 300.0

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Flow (L/s)

Maximum Allowable Flow

825-875 Main St CAM results 2/7/2017

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52

60

87

79

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7284

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63

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75

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Main St

Sparrow Ave

Green Gate Blvd Ferncliffe St

Critcher Ave

Honey St

Nottinghill Dr

Nottinghill Dr

Honey St

Sparrow Ave

Green Gate Blvd

Green Gate Blvd

Green Gate Blvd

Green Gate Blvd

Ferncliffe St

Nottinghill Dr

200

300

150

200

300

300

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150

300

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TRANSPORTATION ANDENVIRONMENTAL SERVICESWater Services150 Frederick StreetKitchener ON Canada N2G 4J3Telephone: (519) 575-4426Fax: (519) 575-4452www.regionofwaterloo.ca

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Appendix C Fire Demand Calculations

TABLE 1 WATER SUPPLY COEFFICIENT -- K

Classification by Group or Division in Accordance with Table 3.1.2.1 of the Ontario Building Code

TYPE OF CONSTRUCTION A-2 A-4 A-1 E F-2 B-1 F-3 A-3 F-1B-2 B-3 C D

Building is of noncombustible construction with fire separations and fire-resistance ratings provided in accordance with Subsection 3.2.2. of the OBC, including loadbearing walls, columns and arches.

10 12 14 17 23

Building is of noncombustible construction or of heavy timber construction conforming to Article 3.1.4.6. of the OBC. Floor assemblies are fire separations but with no fire-resistance rating. Roof assemblies, mezzanines, loadbearing walls, columns and arches do not have a fire-resistance rating.

16 19 22 27 37

Building is of combustible construction with fire separations and fire-resistance ratings provided in accordance with Subsection 3.2.2. of the OBC, including loadbearing walls, columns and arches. Noncombustible construction may be used in lieu of fire-resistance rating where permitted in Subsection 3.2.2. of the OBC.

18 22 25 31 41

Building is of combustible construction. Floor assemblies are fire separations but with no fire-resistance rating. Roof assemblies, mezzanines, loadbearing walls, columns and arches do not have a fire-resistance rating.

23 28 32 39 53

Date:May 2017Stantec Consulting Ltd. 1614-13396

OBC-3ST-7UN Fire Load Calculations as per the Ontario Building Code (OBC) 1614-13396

1) Determine Building to be Assessed

161413396 - 825-875 Main Street CambridgeFire Flow Demand Calculation

2) Determine Building ClassificationClassification Code

3-storey Traditional Townhouse Building (7 Unit) C

3) Determine Building Specific Details

Average Single Floor Area 505 m2

Building materials Wood frame, brick and metal siding exterior# of Storeys 3Average Building Height 12.00 m, includes basement and roofFirewall separations? NoSprinkler system? NoStand-pipe system? No

4) Calculate Fire Load and Required Minimum Fire Flow

Q = K V STot

where Q = minimum supply of water available in litres (L)K = water supply coefficientStot = total of spatial coefficient values from property line exposure on all sides, to a maximum of 1.5

a) Determine K Building is of ordinary construction, with 1-hr fire rating between unitsSee Table 1. OBC classification C

K = 18

b) Calculate Building Volume, V

A = 505 m2

h = 12 mV = 6,060 m3

c) Determine Spatial Coefficient, Stot

Stot = 1 + Σ Sx

Stot = 1.5

Exposure DistanceSfront = 0.00 21.6 m

Sback = 0.00 11.5 m

Sleft = 0.50 3 m

Sright = 0.00 16 m

Σ Sx = 0.50

Q Flow Rate (L/s)d) Resulting Fire Load 108,000 45

135,000 60K = 18 162,000 75V = 6,060 m3 190,000 90

Stot = 1.5 270,000 105

Q = 163,620 m3 > 270000 150

Therefore, the required minimum water supply flow rate is 90 L/s

The exposure distance can be used to determine the spatial coefficient for each wall of building. Distances greater than 10 m do not have an exposure charge.

5/29/2017 Stantec Consulting Ltd. dem_20170529_sz_825-875MainSt.xls

FUS-3ST-7UN Fire Load Calculations as per the Fire Underwriters Survey (FUS) 1614-13396


Fire Flow Calculations - Three Storey - 7 Unit Townhome

Reference:Water Supply for Public Fire ProtectionPart III Guide for Determination of Required Fire FlowFire Underwriters Survey, 1999

1. Initial Estimate of Required Fire Flow

Formula: F = 220 * C * SQRT (A)

F = the required fire flow in litres per minuteC = coefficient related to the type of construction

= 1.5 for wood frame construction (structure essentially all combustible)= 1.0 for ordinary construction (brick or other masonry walls, combustible floor and interior)= 0.8 for non-combustible construction (unprotected metal structural components, masonry or metal walls)= 0.6 for fire resistive construction (fully protected frame, floor, roof)

A = the total floor area in square metres (incl all storeys but not basements at least 50% below grade)* for fire resistive buildings, consider the two (2) largest adjoining floors plus 50% of each of any floors immediately

above them up to eight (8), when the vertical openings are inadequately protected. If the vertical openings and exterior vertical communications are properly protected (one hour rating), consider only the area of the largestfloor plus 25% of each of the two (2) immediately adjoining floors.

Fire flow shall not exceed 30,000 L/min unless it is a one storey building which must not exceed 25,000 L/min or be less than2,000 L/min

Calculations for fire flow F: No. Storeys

A = 758 m2 Foot print area = 505 m2 3C = 1.0 Ordinary ConstructionF = 6,055 L/min = 101 L/s

2. Charge to Required Fire Flow Based on Contents of Building (Occupancy)

-25 % = reduction due to non-combustible contents-15 % = reduction due to limited combustible contents0 % = no charge due to combustible contents15 % = surcharge due to free burning contents25 % = surcharge due to rapid burning contents

* Fire flow determined cannot be less than 2,000 L/min

Calculation of Occupancy Surcharge or Reduction (OSR)

OSR = -15 % (the contents of this building are considered limited combustible to non-combustible, see page 21 FUS, 99)

Calculations of revised fire flow F:

F = 5,147 L/min = 86 L/s

3. Charge to Required Fire Flow Based on Presence of Automatic Sprinkler Protection

0 % = no reduction due to absence of automatic sprinkler system-25 % = reduction without proper system supervision including water flow and control valve alarm service-50 % = reduction with proper system supervision including water flow and control valve alarm service

Calculation of Fire Flow Reduction Due to Presence of Automatic Sprinkler (AS)

AS = 0 % (No sprinkler system installed)

Reduction in Fire Flow (RF):

RF = 0 L/min = 0 L/s



4. Charge to Required Fire Flow Based on Proximity to Other Buildings

The charge for any one side generally should not exceed the following limits for the separations shown

Separation Charge Building Separation0 to 3 m 25 to 20 % Wall Distance3 to 10 m 20 to 15 % Left 310 to 20 m 15 to 10 % Right 1620 to 30 m 10 to 5 % Front 21.630 to 45 m 5 to 0 % Back 11.5

Normally any unpierced party wall/firewall considered to form a boundary when determining floor areas may warrant up to a 10 % exposure charge.

Calculation of Fire Flow Increase Due to Proximity to Other Buildings (PB)

PB = PL+PR+PF+PRR

where,

PL = proximity charge for left side of building = 20.0 %PR = proximity charge for right side of building = 12.0 %PF = proximity charge for front of building = 9.2 %

PRR = proximity charge for rear of building = 14.3 %

PB = 55 %

Increase in Fire Flow (IF):

IF = 3,357 L/min = 56 L/s

5. Final Fire Flow (F) Required

F = F (From Section 2.0) - RF (From Section 3) + IF (From Section 4)

= 5,147 L/min - 0 L/min + 3,357 L/minDia.

= 8,504 L/min = 142 L/s 200 dia.velocity 4.51 m/s

= 2,247 Gal /min

6. Additional Check List

Wood Frame Structures Separated By Less Than 3.0 m Are Considered One StructureWood or Shake Roofs That Could Contribute to Spreading of Fire Should have 2000-4000 L/min of Fire Flow Added

NOTES: Assumed that there are no fire walls separating floors or units (conservative estimate)


OBC-3ST-6RUN Fire Load Calculations as per the Ontario Building Code (OBC) 1614-13396




3-storey Traditional Townhouse Buildings (6 Unit - Rear Lane) C





Q = K V STot



K = 18


A = 388 m2

h = 12 mV = 4,656 m3


Stot = 1 + Σ Sx

Stot = 1.5


Sback = 0.00 27.6 m

Sleft = 0.50 3 m

Sright = 0.00 26.5 m

Σ Sx = 0.50


135,000 60K = 18 162,000 75V = 4,656 m3 190,000 90

Stot = 1.5 270,000 105

Q = 125,712 m3 > 270000 150




FUS-3ST-6RUN Fire Load Calculations as per the Fire Underwriters Survey (FUS) 1614-13396


Fire Flow Calculations - Three Storey - 6 Unit Townhome - Rear Lane

















F = 4,511 L/min = 75 L/s











Separation Charge Building Separation0 to 3 m 25 to 20 % Wall Distance3 to 10 m 20 to 15 % Left 310 to 20 m 15 to 10 % Right 26.520 to 30 m 10 to 5 % Front 18.130 to 45 m 5 to 0 % Back 27.6



PB = PL+PR+PF+PRR

where,



PB = 44 %


IF = 2,330 L/min = 39 L/s





= 1,807 Gal /min





OBC-3ST-8RUN Fire Load Calculations as per the Ontario Building Code (OBC) 1614-13396




3-storey Traditional Townhouse Buildings (8 Unit - Rear Lane) C





Q = K V STot



K = 18


A = 517 m2

h = 12 mV = 6,204 m3


Stot = 1 + Σ Sx

Stot = 2.0

Exposure DistanceSfront = 0.00 16 m

Sback = 0.00 45 m

Sleft = 0.50 3 m

Sright = 0.50 3 m

Σ Sx = 1.00


135,000 60K = 18 162,000 75V = 6,204 m3 190,000 90

Stot = 2.0 270,000 105

Q = 223,344 m3 > 270000 150






Fire Flow Calculations - Three Storey - 8 Unit Townhome - Rear Lane

















F = 5,208 L/min = 87 L/s











Separation Charge Building Separation0 to 3 m 25 to 20 % Wall Distance3 to 10 m 20 to 15 % Left 310 to 20 m 15 to 10 % Right 320 to 30 m 10 to 5 % Front 1630 to 45 m 5 to 0 % Back 45



PB = PL+PR+PF+PRR

where,



PB = 52 %


IF = 3,186 L/min = 53 L/s





= 2,217 Gal /min









2-storey Traditional Townhouse Buildings (8 Unit - Future) C





Q = K V STot



K = 18


A = 730 m2

h = 9 mV = 6,570 m3


Stot = 1 + Σ Sx

Stot = 1.5


Sback = 0.03 9.7 m

Sleft = 0.00 22.9 m

Sright = 0.50 3.5 m

Σ Sx = 0.53


135,000 60K = 18 162,000 75V = 6,570 m3 190,000 90

Stot = 1.5 270,000 105

Q = 180,938 m3 > 270000 150






Fire Flow Calculations - Two Storey - 8 Unit Townhome - Future










A = 1,095 m2 Foot print area = 730 m2 2C = 1.0 Ordinary ConstructionF = 7,280 L/min = 121 L/s







F = 6,188 L/min = 103 L/s











Separation Charge Building Separation0 to 3 m 25 to 20 % Wall Distance3 to 10 m 20 to 15 % Left 22.910 to 20 m 15 to 10 % Right 320 to 30 m 10 to 5 % Front 21.630 to 45 m 5 to 0 % Back 9.7



PB = PL+PR+PF+PRR

where,



PB = 53 %


IF = 3,851 L/min = 64 L/s





= 2,652 Gal /min









3-Storey Townhouse Buildings (16 Unit) C





Q = K V STot



K = 18


A = 788 m2

h = 12 mV = 9,456 m3


Stot = 1 + Σ Sx

Stot = 1.0


Sback = 0.00 13.7 m

Sleft = 0.00 21.6 m

Sright = 0.00 21.6 m

Σ Sx = 0.00


135,000 60K = 18 162,000 75V = 9,456 m3 190,000 90

Stot = 1.0 270,000 105

Q = 170,208 m3 > 270000 150






Fire Flow Calculations - Three Storey - 16 Unit Townhome










A = 1,182 m2 Foot print area = 788 m2 3C = 1.0 Ordinary ConstructionF = 7,564 L/min = 126 L/s







F = 6,429 L/min = 107 L/s











Separation Charge Building Separation0 to 3 m 25 to 20 % Wall Distance3 to 10 m 20 to 15 % Left 21.610 to 20 m 15 to 10 % Right 21.620 to 30 m 10 to 5 % Front 13.730 to 45 m 5 to 0 % Back 13.7



PB = PL+PR+PF+PRR

where,



PB = 45 %


IF = 3,381 L/min = 56 L/s





= 2,592 Gal /min





161413396 - 825-875 Main Street CambridgeDemand Calculation

Demand Calculation Based on Latest Site Plan

Parameter SourceNumber of Townhome Units 110 Site Plan

Persons Per Unit (Townhome) 2.48 Tri-City Water Distribution Master Plan Final Report 2009Estimated Population (residential) 273

Per Capita Demand 225 Tri-City Water Distribution Master Plan Final Report 2009Total Demand 61425 L/d

Total Average Day Demand 0.71 L/s

Max Day Factor 1.44 Tri-City Water Distribution Master Plan Final Report 2009Total Max Day Demand 1.02 L/s

Demand Distribution

Node

# of Townhome

Units

Residential Population

Total Demand

(L/d)

Total Average Day Demand

(L/s)

Total Maximum Day Demand

(L/s)J-1 24 60 13392 0.16 0.22J-2 25 62 13950 0.16 0.23J-3 31 77 17298 0.20 0.29J-4 30 74 16740 0.19 0.28

Total 110 273 61380 0.71 1.02

Stantec Consulting Ltd.

6/9/2017Demands

dem_20170529_sz_825-875MainSt.xls

Appendix D WaterCAD Output Files

Active Scenario: Average DayFlexTable: Junction Table

825-875 Main Street Cambridge

Pressure(kPa)

Hydraulic Grade(m)

Pressure Head(m)

Elevation(m)

Demand(L/s)

Label

516349.0752.72296.350.16J-1512349.0752.30296.770.16J-2492349.0750.25298.820.20J-3502349.0751.27297.800.19J-4

Waterloo, ON N2L 0A46/9/2017Sergio Zaga, M.Eng.100-300 Hagey Boulevardwcd_20170419_sz_825-875MainSt.wtg

Bentley WaterCAD V8i (SELECTseries 6)[08.11.06.113]Stantec Consulting Ltd.825-875 Main Street Cambridge

Active Scenario: Max Day + 167L/s Fire @ J2FlexTable: Pipe Table


Velocity(m/s)

Flow(L/s)

Minor Loss Coefficient

(Local)

Hazen-Williams C

MaterialDiameter(mm)

Stop Node

Start NodeLabel

5.971061.330150.0PVC150.0J-2J-1P-13.49-621.330150.0PVC150.0J-3J-2P-23.51-621.330150.0PVC150.0J-4J-3P-33.52-621.330150.0PVC150.0J-1J-4P-45.351681.330150.0PVC200.0J-1J-5P-5



Active Scenario: Max Day + 167L/s Fire @ J3FlexTable: Pipe Table


Velocity(m/s)

Flow(L/s)

Minor Loss Coefficient

(Local)

Hazen-Williams C

MaterialDiameter(mm)

Stop Node

Start NodeLabel

4.74841.330150.0PVC150.0J-2J-1P-14.73841.330150.0PVC150.0J-3J-2P-24.74-841.330150.0PVC150.0J-4J-3P-34.75-841.330150.0PVC150.0J-1J-4P-45.351681.330150.0PVC200.0J-1J-5P-5



Active Scenario: Max Day + 167L/s FireFire Flow Node FlexTable: Fire Flow Report


Junction w/ Minimum Pressure (System)

Pressure (Calculated

System Lower Limit)

(kPa)

Pressure (Calculated Residual)

(kPa)

Flow (Total Available)

(L/s)

Flow (Total Needed)

(L/s)

Label

J-3297321172167J-1J-3197171172167J-2J-2237140168167J-3J-3206170172167J-4J-3345369172167J-5



Active Scenario: Max DayFlexTable: Junction Table


Pressure(kPa)

Hydraulic Grade(m)

Pressure Head(m)

Elevation(m)

Demand(L/s)

Label

516349.0652.71296.350.22J-1512349.0652.29296.770.23J-2492349.0650.24298.820.29J-3502349.0651.26297.800.28J-4



Active Scenario: Max Day + 167L/s FireScenario: Max Day + 167L/s Fire825-875 Main Street Cambridge

P-6

P-1

P- 5

P- 3



stantec consulting ltd. 100-300 hagey boulevard, waterloo ...€¦ · 100-300 hagey boulevard,...

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