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Abstract
The construction of prefabricated houses is a viable option to solve the problems of housing demand in the Andean region. The prefabricated concrete houses have been built in several countries in the region and will surely be developed in the future. Thinking about their constructability, information is required about this construction system, which is scarcely known by the main people involved in construction: governments, users and builders. The present work seeks to fill the knowledge gap on the production and assembly of prefabricated concrete housing (PFCH), as well as on its advantages and disadvantages. For this purpose, a search for providers of this type of housing was carried out in Argentina, Bolivia, Colombia, Chile, Ecuador and Peru. Through an analysis of documentary information and interviews with the managers of the supplier companies, it was established that one of the main aspects in this construction system is the definition of the constituent elements of the house as this defines the need for equipment and hand of work for its assembly. The main advantage is the short execution time, while among the disadvantages is the poor adaptability of the designs. There are conflicting opinions as to whether its cost is an advantage. This research contributes to the constructability of PFCH in the Andean region, facilitating knowledge that can be integrated in the design and in the construction stage in order to improve the performance of the construction process.
Highlights
In the construction industry, scheduling problems, delays and disputes often arise during the construction process
The search was carried out in the English and Spanish languages, in order to provide an analysis of publications and academic trends to evaluate the performance of existing research and understand patterns based on the following keywords: Andean region, Andean community, Peru, Venezuela, Colombia, Ecuador, Chile, Argentina, Bolivia, precast concrete, precast concrete houses, advantages, disadvantages, prefabricated housing production, precast assembly, transportation of pre-fabricated, Andean region, Andean community, precast concrete, precast concrete houses, advantages, disadvantages, precast house production, precast assembly, precast transportation
Six documents refer to pre-fabricated construction in the Andean region [13,15,21,42,43,46], they refer to the production of prefabricated concrete housing (PFCH), but none refers to the benefits and difficulties, they only relate the form of production
Summary
In the construction industry, scheduling problems, delays and disputes often arise during the construction process. It is necessary that the knowledge of constructability reaches the project participants in advance. Designers need to be familiar with the needs of the customers, construction knowledge and how the contractor will implement the design [1–3]. The construction capacity of a design depends on a correct consideration of the limitations and possibilities of its execution [4]. Concerning construction projects, constructability is the optimal use of construction knowledge and experience during planning, design, procurement, and construction to achieve project goals [5]. It is best to review the constructability of a project in the early stages, including the design phase, to achieve a greater positive impact on its performance. Knowledge about what will be built in the early phases of the project can improve construction methods, improve decision-making and involve stakeholders in facilitating their satisfaction [6]
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