Case Study
Central & Park Panorama Towers
Arnulfpark – Munich (DE)New residential development close toa busy rapid transit (light railway) line

Implementation of an elastic
building mount in heavy groundwater

Proof of required effectivenessfrom in-situ measurements insidecompleted building

Elastic Mountingof Buildings

Panorama Tower – economic andefficient vibration and soundinsulation

Project description

Getzner’s solution

Panorama Towers – a new residential
development close to a busy rapidtransit line

Full surface building mount using
permanently water-resistantmaterialsThe Arnulfpark development, a mixof residential and commercialproperties, was constructed on thesite of Munich’s former container rail
depot. In 2009, work began on theCentral & Park project in the southernpart of the Arnulfpark. This collectionof buildings unites the two outerresidential towers with the commercial development that lies between
them.

TThe area is bordered to the south by
the rail approaches to Munich central
station, while an extremely busy
stretch of Munich’s rapid transit network has trains passing alongside
about every 90 seconds. “We had toprotect the residential properties
from the effects of the rail traffic.
However, the high water table in thearea presented us with a major technical challenge. At nine metres below
the surface, the base plate is permanently under four and a half metresof groundwater,” explained Rainer
Zindler, project manager at Getzner’s
Munich office, on the critical aspectsof the contract. The vibration-insulating solution had to be able to copewith this particular situation.

Technical and economic arguments

he base plates of each 44 m highapartment block were placed on aSylodyn® surface covering the entirearea. To achieve optimum levels ofvibration insulation, the side walls
were elastically isolated from thesurrounding environment – from thelower edge of the base plate to the
top of the soil. Both Sylomer® andSylodyn® were used, depending on
the installation depth.

“Getzner put forward an impressivearray of cost-effective vibration andsound insulation measures geared
precisely to the specific requirementsof the project. Their solution wasbased on homogenous and weatherresistant materials and showed an
attractive price-performance ratio,”
explained Ahmad Kamali from theIB Schmid engineering consultancy
when asked about the main reasonsfor awarding Getzner the contract.

Execution
Getzner vibration expertise wasinvolved in the project right fromthe planning phase. To achieve
optimum building isolation, the specific conditions on the ground had tobe addressed right from the offset.
Key factors included the required
natural frequency of 16 Hz, the actualloads and the water table lying 4.5
metres below the surface. The
vibration specialists at Getzner
selected Sylomer® and Sylodyn® asthe appropriate bearing materials
and presented the client with fullydeveloped installation plans whilestill in the pre-project phase.
Alongside planning and delivery,
Getzner was also awarded thecontract to install and supervise thevibration solution. Getzner was able
to call upon the services of thecompany constructing the building
shell, R. Leitner, to complete theinstallation; ultimate responsibility
for delivery and installation, however,remained with Getzner. In effect,
Getzner was far more than just thedeveloper and manufacturer of thevibration reduction materials. The
company was also involved at allstages of the project, from consultation and calculation through toinstallation and final assessment.
The warranty obligation and quality
control duties lay with Getzner.

Professional building protection
using Sylomer® and Sylodyn®

Site plan: Arnulfpark with Panorama Towers

Feedback
External inspection confirms
effectiveness of vibration solution

The views of Möhler + Partner,
consulting engineers

The views of Ahmad Kamali,
IB Schmid consulting engineers

After the closure of the project, theengineering company Möhler +Partner Ingenieure AG conducted aseries of measurements on the largely
completed property. The sound insulation specialists analysed effectiveness before concluding that thespecified values were consistentlymet. Despite the influence of groundwater, the insulation delivered exceptional results. All the stipulated requirements were met and the fore-castcalculations proved to be totallyaccurate. “The scientific investigations into the foundations wereconducted on the above ground levels
used for residential occupancy. They
showed a drastic reduction in vibrations and secondary airborne noise,”summarised Hans Högg, noise insulation specialist at Möhler + Partner.

“The building complex is not only
bordered by railway lines, some of it
also stands in groundwater. Despite
this challenging situation, the engineers at Getzner have developed apractical solution whose success has
been demonstrated by our comparative test results. We were impressedby both the material and the outstanding technical performance.”“A direct comparison between mounted and non-mounted structures is
especially revealing in this project, asboth are exposed to the same environmental influences. The test results
illustrate strikingly how dramaticallyan elastic mounting can reduce thevibration effects on a building.”

Hans Högg
Möhler + Partner Ingenieure AGMunich

The result: despite the challenging
site conditions, the professionalbuilding protection system using
Sylomer® and Sylodyn® delivers
excellent residential standards.

The isolated baseplates are permanently
submerged in 4.5 metresof groundwater

Ahmad Kamali
IB SchmidGes. für Projektsteuerung undBauüberwachung m.b.H.

The main rapidtransit line runs
immediately next
to the PanoramaTowers

Facts and figures at a glance
Elastic mounting of the Central & Park Panorama Towers in the Arnulfpark development
Building complex:
Location:
Vibration insulation:
Solution:

Use of material:
Getzner’s involvement:
Client:Investor:
Building mount installer:

Two 12-storey residential buildings (44 m high)Central & Park, Arnulfpark, Munich
Getzner Werkstoffe GmbH
Full surface building mount with Sylodyn®; Isolation of the south, west andeast-facing side walls using Sylodyn®, between depths of -9 m and -4.5 m andSylomer® between -4.5 m and the top of the soil
2,210 m2 Ground area, 1,675 m2 side matsJune 2009 to December 2010
Arnulfpark Wohnbau GmbH & Co. KG
alpha invest Projekt GmbHR. Leitner GmbH & Co.
Bauunternehmung KG

Getzner Werkstoffe GmbHFoundation:
Chief Executive Officer:
Employees:
2015 turnover:Business areas:
Headquarter:
Locations:

Ratio of exports:

1969 (as a subsidiary of Getzner,Mutter & Cie)Ing. Jürgen Rainalter340
EUR 77.9 million
Railway, construction, industry
Bürs (AT)
Berlin (DE), Munich (DE), Stuttgart (DE),
Lyon (FR), Amman (JO), Tokyo (JP),Pune (IN), Beijing (CN), Kunshan (CN),Charlotte (US)85 %AUSTRIA — Bürs GERMANY — Berlin — Munich — Stuttgart FRANCE — Lyon
JAPAN — Tokyo INDIA — Pune CHINA — Beijing USA — Charlotte— The Touraine – luxury residential
complex, New York (US)— The Rushmore Building, New York (US)— “Four Suns” luxury residential
complex, Moscow (RU)
— Welfenhöfe, Munich (DE)— Drachen-Center, Basel (CH)— Theatro National de Catalunya,Barcelona (ES)— BMW World, Munich (DE)— National Training Centre, Tokyo (JP)— Oslo Opera, Oslo (NO)— Bolshoi Theatre, Moscow (RU)— Skyline Vienna, Vienna (AT)JORDAN — Amman
www.getzner.com

CS PTA en © Copyright by Getzner Werkstoffe GmbH | 04-2016

References (Extract)