Towers of strength: windproof doors for Flame Towers in Baku

The Flame Towers in with opening elements for BMU devices
Photo source
The Flame Towers in with opening elements for BMU devices | Photo: www.priedemann.de

Date: 23 May 2017

Our job was to install a building maintenance unit at 170 metres height to gain access to the building envelope.

Ever opened a simple casement window at a height of 170 metres? Okay, we admit the question was a rhetorical one. If you’d said yes, you’d probably wouldn’t be alive to tell the tale.

The wind force would almost certainly have taken you and the window with it. Especially in the Azerbaijani capital of Baku, also known as the City of Winds. This is where three so-called Flame Towers up to 190 metres in height shoot up into the stormy skies.

Development and Mock-Up of the opening facade element
Development and Mock-Up of the opening facade element

Our job was to install a building maintenance unit at 170 metres height to gain access to the building envelope. The concept involved enabling the facade around the building to open as discretely as possible. And each door leaf needed to withstand the enormous wind force of up to 7.5 kN (normal levels are 1.5 kN).

Other challenges involved the sheer size and weight of the door leaves – whichs were as vast as garage doors and double-glazed too – as well as an inclination of 30° due to the special shape of the towers.

Based on these parameters, our job was to develop a workable concept for the folding sliding doors, the drive mechanism and the static sizing.

The Flame Towers – looking upwards
The Flame Towers – looking upwards

First of all we created 3D CAD models to analyse the geometric conditions and to draw various solutions. The models helped the facade builder Dekoral to make a full-size functional model. Extensive static calculations provided the figures to plan the rest of the construction project.

In the end, around 120 units in different shapes and weights of up to 1.2 tonnes were mounted to make the 64,000 sq m facade of the three Flame Towers accessible from the outside at all times. A welcome bonus: by switching the electric drives to hydraulic ones, we halved the running costs.

Ever opened a Priedemann folding sliding door at a height of 170 metres? Go ahead!

Sketch and 3D-development of opening elements
Sketch and 3D-development of opening elements

Flame Towers
Baku, Azerbaijan

Client
Dekoral Aluminum

Owner / Developer
Azinko Development MMC

Architect
HOK International Ltd.

Technical features
3D shaped facades as unitised curtain wall

Our scope
Develeopment for motorised opening elements in the 3D-shaped facade for the BMU-devices penetration of the the facade

600450 Towers of strength: windproof doors for Flame Towers in Baku glassonweb.com

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