Extension of the Regional Hospital SRO, , Langenthal

2017

The intensive care unit of Spital Region Oberaargau in Langenthal has reached its capacity limit. Thanks to a wooden extension, the hospital is able to meet the increased space requirements.

The Project The Construction With the VKF fire protection guidelines of 2015, hospital The extension is a skeleton structure in timber construction. buildings in timber construction are possible. Vertical loads could only be introduced into the existing solid In order to meet the increased space requirements, an building structure selectively and at specific locations. In the extension was added to the existing building while the roof, the spans of 7.7 metres were bridged with a partially hospital was still in operation. In hospitals, the supporting insulated box girder. An under-spanned beam bridges an structure of the fire-section-forming components must meet inner courtyard with a span of 16 metres. 60 minutes fire resistance in encapsulated construction (R60-RF1 or EI60-RF1). This high requirement is only The Challenges prescribed for the vertical escape route in normal office and Forming the fire compartments and at the same time taking residential buildings. The load transfer of the extension to the into account the large deformations of the beams and the existing building fabric was only possible at a few defined sliding connections was a major challenge. A specially points. This results in large spans for the timber construction designed connection of the interior walls to the roof allows and correspondingly large beam deformations. the roof elements to deform without transferring loads to the walls. The fire protection authorities approved this special construction with an "approval in individual cases". Another challenge is the high installation density that is common in a hospital.

Timbatec Holzbauingenieure Thun · Zürich · · Wien www.timbatec.com Installation of the under-tensioned beam Erected interior wall elements with the prepared recesses for the many installations

Underspanned steel beam with a span of 16 meters Sliding connection for high deformations with "approval in individual cases" from the fire protection authority

Construction Data Architecture - Skeleton structure Lüscher Egli AG - Sub-frame with a span of about 16 m 4900 Langenthal - Interior and exterior walls frame construction encapsulated - Requirement REI60-RF1 Building Owner - Roof partially insulated box girder Span 7.7 m Spital Region Oberaargau SRO AG 4900 Langenthal

Services Timbatec Timber Construction Engineers - SIA Phase 32 Construction project Timbatec Holzbauingenieure Schweiz AG - SIA Phase 41 Tender and comparison of offers 3012 Bern - SIA Phase 51 Implementation project Timber Construction - SIA Phase 52 Design Hector Egger AG - SIA Phase 53 Commissioning 4900 Langenthal - Statics and construction - Specialist construction management and construction site Civil Engineer inspections Wälchli & Partner AG 4900 Langenthal

Photography Lüscher Egli AG 4900 Langenthal

Timbatec Holzbauingenieure Thun · Zürich · Bern · Wien www.timbatec.com