| Title |
Development of Corner-Supported Auto Climbing Formwork System |
| Authors |
Hong, Geon-ho ; Shim, Woo-Kyung |
| DOI |
https://doi.org/10.5659/JAIK_SC.2019.35.7.171 |
| Keywords |
High-Rise Building; Concrete Form; Auto Climbing Formwork System; Optimum design |
| Abstract |
Auto Climbing Formwork System (ACS) for construction of high-rise building is a construction method for automatically lifting the formwork
system supported by the anchor on the pre-constructed concrete wall. It has excellent construction speed and quality, but it has the possibility
of structural failure depending on the quality of concrete and also has low economical efficiency due to the use of foreign technology. In
order to overcome these problems, this study conducted an optimum design for the development of a new concept of Corner Supported Auto
Climbing System (CS-ACS) in conjunction with the development of corner steel-reinforced concrete core wall system. For the design the
formwork system, the basic module and structural member compositions were planned, and the structural analysis program was used to
analyze the optimum member's cross section and spacing. As a result, the horizontal displacement and the stress of the horizontal members
were influenced by the spacing more than the cross-section of the member. On the other hand, vertical members did not affect the
displacement and stress of the formwork system. The form tie was very effective in controlling the displacement when adjusting the spacing
of the horizontal members, but when the spacing of the form tie is more than 1,500mm, it is analyzed that form tie is yielding in basic
module. When the span of the formwork system is more than 30m, it is analyzed that the basic module needs to be changed because of the
increase of overall displacement. |