Hollow Foundation For Concrete Towers

The Hollow Foundation Solution

Hollow foundation for concrete towers in Argentina
Hollow foundation for concrete towers in Argentina

The Hollow Foundation Solution allows for anchoring of the concrete tower to the foundation using pre-stressing or post-tensioning cables.

While there are variants where the concrete tower sits directly on a classic slab foundation, the most common foundation scenario features a cellar where cables are anchored and cable tensioning tools are placed.

Reinforcement design for the hollow foundation solution is also substantially different from that of standard gravity foundations. Besides the customized interior formwork, special attention has to be paid to the the design of the anchoring bulkheads where concentrated loads are applied to the concrete in very limited spaces.

Plan of a hollow foundation, the anchor cables are marked in red.

Cellar sealing is important

The lower surface of the foundation acts as a bearing ring while the higher weight of the concete tower helps to stabilize the entire structure. The lid overing of the foundation cellar requires special attention to prevent water ingress.

Please contact us if you are interested in knowing more about CTE Wind’s hollow foundation solutions.