14-0008-De Structural Report Chiller Ford NH Building

8/18/2019 14-0008-De Structural Report Chiller Ford NH Building

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DNS Projects BVBA Schoonmansveld 48 B-2870 Puurs Belgium

BTW BE 0897 585 837 IBAN BE19-7795-9595-6112 BIC GKCCBEBB

Tel +32 3 766 57 00 Fax +32 3 401 70 16 [email protected] www.dnsprojects.be

STATIC CALCULATION

Order number: 14-0008-DE

Project: Upgrade HVAC NH Building (renew chiller)

Client: Ford Werke GmbH – Ford Land

Author: Wouter Celen for DnS Projects

Luc Van Hauwenhuyse for Fraeye & Partners

mailto:[email protected]:[email protected]://www.dnsprojects.be/http://www.dnsprojects.be/http://www.dnsprojects.be/mailto:[email protected]


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Author: Wouter Celen for DnS Projects - Luc Van Hauwenhuyse for Fraeye & Partners

Project: FORD LAND NH-project 14-0008-DE

Table of contents

1. General information ..................................................................................... 3

2. Actual situation ............................................................................................ 53. Chiller ......................................................................................................... 12

4. Buffer vessel .............................................................................................. 28

5. Plan ............................................................................................................ 30

6. Closing Remarks ......................................................................................... 31


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Concrete quality: actual

Steel quality: S235 – NBN EN 10204

Concrete: NBN EN 206 1-2001

NBN B 15 001-2004

Calculations: NBN B 15 101-102-103-104

1. General information

The installation consists of an energy efficient cooling installation.

This installation will replace the existing water-cooled installation on the ground floor. The

existing installation is still running on R22. Consequently these coolants should be removed

and destroyed in accordance with the applicable standards.

The new cooling machine will be placed on the roof and will be air-cooled.

A glycol circuit will be provided for the protection of the cooling group. The distribution to

the users will be on ice-water. The existing manifolds can be reused as much as possible. A

new control system for the fan coil units in the offices will be provided in the technical room

on the top floor. The pipes will be connected on the ground floor, this way the current

distribution is maintained.


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Location of the new cooling machine next to the technical room :

BRIEF DESCRIPTION OF THE INSTALLATION WE WANT TO ACHIEVE:

The new cooling unit should be placed on the roof. Therefore we need to carry out the

structural facilities on the roof at first. These works include roof repairs, waterproof finish

and a steel construction. The necessary fittings required for this are included in the contract.

The ice-water pipes are connected to the current collector in the technical space on the roof.


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2. Actual situation

2.1 Data – plans as built

Concrete structure roof:


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Location of concrete beams:


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Detail of concrete beam position 1:


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2.2 Calculations to check the existing situation


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Calculation 1 existing beam :


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Calculation 2 existing beam :


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3. Chiller

3.1 Data


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3.2 Considered loads on support structure


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3.3 Calculation steel structure

Calculation of platform :


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Location of the calculated beams :


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Total load Chiller :


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Calculation beams 1 and 2 :


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Loads beams 3 and 4 :


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Calculation beam 3 :


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Calculation beam 4 :


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3.4 Conclusion steel structure


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4. Buffer vessel

4.1 Data


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4.2 Calculation

4.3 Conclusion

The buffer vessel (load of 30 kN) should not be placed anywhere on the

floor, but on top of the concrete beam on axis C.

The existing floor is calculated for a maximum load of 5 kN/m².

Other equipment can be placed in the technical room as long as the max.

load is not exceeded.


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5. Plan


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6. Closing Remarks

This calculation is only valid after analysing by a recognised expert in

structural engineering.

A brief calculation of the existing roof results in the conclusion that the

indication on the as-built plans considering a mobile load of 3.5 kN/m² is

not correct. The real mobile load is max. 1 kN/m².

This results in a secondary steel structure for the Chiller on the roof.

If the position or the load of the Chiller should change, then the

calculations will need to be redone.

As far as the technical room on the roof is concerned : the floor is

calculated for a maximum load of 5 kN/m². Any equipment that exceeds

this load will need to be supported by a secondary structure which will

need to be calculated.

The buffer vessel (load of 30 kN) should be placed on top of the concrete

beam on axis C as indicated in the drawing.

Documents

14-0008-De Structural Report Chiller Ford NH Building