Shaping and assembly of structural systems of pocket foundations with prefabricated columns

Pocket foundations are usually used under precast RC columns of steel or RC flyovers and industrial halls. Pocket foundations is a specific type of foundation in which, apart from standard calculations concerning the fulfilment of the limit states in the base of the footing, the problems related to the appropriate design of its walls in the pocket are also important. The aim of the article is, therefore, to draw attention to the specificity of pocket foundation design-which are part of the structural systems in the hall buildings-and to present the main problems that may arise during their construction at individual stages, including guidelines for checking the correctness of the conducted assembly works. The following article describes the main requirements for the construction of pocket foundations with particular attention to the type of surface present inside the pocket. The main problems related to the pocket foundations construction are also presented and the methodology of assembling the precast columns in the footings is described. In the manuscript, it was also discussed how to check and control the correctness of the skeleton installation works in hall buildings in order to prevent too large deviations in the assembled structure.