Automated Construction with Concrete (2018-04)¶

Because automated construction is a developing construction practice, no current building codes control structural design of printed structures; therefore, many unknowns exist concerning how printed structures respond to different load cases. Here, an analysis of the dynamic response to blast loading of concrete wall sections produced using automated construction techniques is presented and compared to traditional construction techniques such as cast-in-place concrete and concrete masonry unit construction. Wall sections were subjected to simple one-way action, as well as applied vertical stresses to simulate roof loads. These laboratory experiments of simulated wall sections allow for a more complete understanding of when automated construction is an acceptable method of construction for structures potentially subjected to blast loads. In addition, the findings herein indicate areas where refinement of both materials and construction methods can improve upon the response to dynamic loads. Also included is a discussion of the dynamic response of printed concrete beam sections reinforced with reinforcing bars and/or fiber mesh. Furthermore, descriptions of material development and construction methodology are given.