Annex 3 Timber Construction - Universität Kassel: … Annex 3: Example Timber Construction...

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A3.1 Annex 3: Example Timber Construction Description of the Building observed The building is a threestorey family house with a basement (see picture A7 to A11). The roof is a flat roof whereat the upper floor only extends over half of it. The other part is used as a roof terrace. The outside walls consist of timber panel elements planked on both sides; the nonbearing inner walls consist of a lightweight construction. The floors are built as a shearconnector roof. In the middle of each ground and upper floor, there is a wood beam binding girder on two steel columns and on the outer walls. The basement consists of reinforced concrete walls with a reinforced concrete floor. Picture A7: Section of the cubic house

Transcript of Annex 3 Timber Construction - Universität Kassel: … Annex 3: Example Timber Construction...

Page 1: Annex 3 Timber Construction - Universität Kassel: … Annex 3: Example Timber Construction Description of the Building observed The building is a three‐storey family house with

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Annex 3: Example Timber Construction  Description of the Building observed  The building is a three‐storey family house with a basement (see picture A7 to A11). The roof is a flat roof whereat the upper floor only extends over half of it. The other part is used as a roof terrace. The outside walls consist of timber panel elements planked on both sides; the non‐bearing inner walls consist of a lightweight construction.  The floors are built as a shear‐connector roof. In the middle of each ground and upper floor, there is a wood beam binding girder on two steel columns and on the outer walls. The basement consists of reinforced concrete walls with a reinforced concrete floor.     

  

Picture A7: Section of the cubic house  

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Picture A8: Ground plan of the basement   

  

Picture A9: Ground plan of the ground floor   

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Picture A10: Ground plan of the upper floor  

  

Picture A11: Ground plan of the top floor  

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Execution of the FMEA  When applying the bearing structure FMEA, basically, all the construction elements have to be examined. However, similar construction elements can be grouped. Then, a risk evaluation has only to be applied for the decisive elements in the respective group. In case arrangements have to be taken for these construction elements, these automatically count for the obviously less decisive elements, as well. When this method is not favoured, a particular form sheet has to be filled for the decisive elements.  As for the observed example of use, the ground plans and the used materials for the ground floor and the floors above are identical.  The risk evaluation is only performed for the ground floor and the basement. The construction elements of the example of use can be grouped as follows:  

Type of Construction Element  Relevant Construction Element  Less exposed Construction Element 

Outside wall GF  W0.7  W0.1 – W0.6, W0.8 – W0.10, S0.2 

Wooden beam binding girder GF 

U0.1  ‐ 

Steel column GF  S0.1  ‐ Sheer‐connector roof GF  D0.1  ‐ Reinforced‐concrete floor basement 

DK.1  ‐ 

Outside wall basement  WK.2  WK.1, WK.3 – WK.8 Inner wall basement  WK.9  WK.10  The risk number of this construction was determined due to the form sheets. The according risk priority number was calculated out of the sheets. The maximum value was defined on 40. As most of the construction elements observed exceeded the value, different prevention measures were taken to reduce the risk. Thereby, the RPZ could be reduced to 36 at most, thus, far beyond the limit of 40.