Amb el pas del temps les ciutat van creixent i canviant, fent que edificis industrials que antigament estaven fora de la ciutat ara estan dintre, o edificis industrials que es van construir molt a prop de les zones residencials perquè no hi havia cap normativa que ho regulés. Tot això ens porta a que avui en dia trobem edificis industrials dintre de la ciutat que han deixat de tenir un ús industrial per estar massa proper a les zones residencials i s’intenta buscar un nou ús per aquests edificis, alguns d’aquests edificis tenen una importància arquitectònica o cultural on es busca mantenir-los com a edificis patrimoni i donar-los-hi un nou ús. En aquest treball es busca fer un estudi comparatiu de tres edificis industrials de Barcelona que se’ls hi ha donat un nou ús de biblioteca per tal de trobar unes pautes per seguir a l’hora de transformar edificis industrials en biblioteques. Per fer-ho, es buscarà quines condicions són més necessàries en una biblioteca des dels inicis de les primeres biblioteques, per després analitzar com es compleixen aquestes necessitats en tres edificis industrials convertits en biblioteques. En la segona part es presentaran les tres biblioteques dintre del context de Barcelona, i s’analitzaran per esbrinar quines estratègies s’han utilitzat i com s’adapten a les necessitats d’un edifici destinat al ús de biblioteca pública. Per acabar es compararan les diferències o similituds que hi ha en les estratègies per adaptar edificis industrials a les condicions de les biblioteques.

Over time, cities grow and change, making industrial buildings that were once outside the city now inside, or industrial buildings that were built very close to residential areas because there were no regulations to regulate it. All this causes that today we find industrial buildings inside the city that have ceased to have an industrial use for being too close to residential areas and we are trying to find a new use for these buildings, some of these buildings have an architectural or cultural importance and it is sought to maintain them as heritage buildings and to give them a new use. This work seeks to make a comparative study of three industrial buildings in Barcelona that have been given a new library use in order to find some guidelines to follow when transforming industrial buildings into libraries. To do this, it will look for what conditions are most necessary in a library from the beginning of the first libraries, and then analyze how these needs are met in three industrial buildings converted into libraries. In the second part, the three libraries will be presented within the context of Barcelona, and will be analyzed to find out which strategies have been used and how they are adapted to the needs of a building intended for use as a public library. Finally, the differences or similarities in the strategies to adapt industrial buildings to the conditions of libraries will be compared.