Rehabilitation of an Existing Office Block
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Abstract
A new owner wishes to refurbish the analysed building assembled in 70’s to modern intelligent office block and to develop up to 3000 m2 of a new part. The old office building has been in use until late 80’s. First two floors are made as a monolithic and the rest are prefabricated as RC frame with the shear walls in both directions. All aspects, which came from the coexistence of an old and new part of the office block, will be the scope of an article. The BW for Windows program has been used for computations. In our paper models of shear wall structures in the modernised part as well as the new adjacent part have been shown. The short period of time necessary to obtain the results of the analysis has allowed for a fully interactive structural design. Many analyses have been created to estimate structural space stiffness for existing and new part of the building. Analysis showed, that existing part deflections were 7 times less then permissible one and after concrete grade of a new part has been changed, deflections for both parts were almost the same.
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