Structural solutions for the renovation of dual-use built-in spaces inbuildings of educational institutions with a wall structural system

Abstract

The article presents the results of a generalization of constructive solutions for the restoration of built-in premises of dual-purpose underground structures in existing buildings of educational institutions with a wall structural bearing system. A classification of constructive solutions is proposed depending on the directions of construction and repair work on the restoration of built-in premises of a dual-purpose underground structure in existing buildings of educational institutions, depending on the presence or absence of basements in them. When classifying structural solutions, options for cases of frameless (wall) structural systems of existing buildings of educational institutions with the location of load-bearing walls in the longitudinal direction were taken into account. A generalization of options for basic structural solutions for strengthening wall and floor elements in existing buildings at the basement or technical underground level has been carried out. A general classification of options for strengthening or restoring columns, posts, and masonry section of a building wall by increasing their cross-sections in their plane and/or in their out-of-plane sections using additional structural elements is presented. A general classification of options for strengthening or restoring beam and slab reinforced concrete girder structural elements of floors of buildings by increasing their cross-sections is also provided. The general directions of constructive solutions for the restoration of built-in premises of dual-purpose in existing buildings of educational institutions, depending on the necessary evacuation requirements and the case of their structural bearing system, developed in the article will allow them to be designed with appropriate measures to strengthen their main load-bearing structural elements of walls and ceilings at the basement level.