%0 Conference Paper %1 oliva_orbit_2018 %A Oliva, Enrica %A Andaloro, Michele %A Sobek, Werner %B Facade Tectonics 2018 World Congress, March 12-13, 2018, Los Angeles, CA %D 2018 %K - adaptive alloy, and cable carbon, daylighting dynamic, energy facade, glare hybrid kinetic parametric shading, shape-memory sobek structure-skin workflow, %P 47--64 %T Orbit tower: proposal for a hybrid structural-facade system featuring a self-adaptive solar shading device %V 1 %X While most of high-rise buildings feature a core surrounded by a spatial frame defining the volume, one could envision a column-free plan where the perimeter structure is constituted of steel cables, working in tension to suspend the floor plates and transferring the loads to the core by means of story-high trusses located along the perimeter, as well as diagonally across the floor, at the mechanical levels. The steel cables feature custom fittings to support the fully-glazed skin and allow for an optimized redistribution of the loads between the supporting members. The resulting hybrid scheme has beneficial impacts from a structural, sustainability, and indoor environmental quality standpoint. The abundant natural light, penetrating through the fully-glazed skin, is controlled by an adaptive shading system, integrated with the IGU, consisting of perforated steel sheets woven together by two-way shape-memory alloy hinges that enable the component to work like an origami, opening and folding automatically according to the exterior environmental conditions: in the summer, the unfolded geometry creates an external overhang that varies with each panel exposure and alleviates the energy demand required for cooling; in the winter, the folded shape allows for a higher solar heat gain, thus lowering the heating energy demand. Therefore, the self-adaptive skin designed allows for unobstructed views throughout the envelope, as well as for an optimized control of the light, both in terms of energy and of daylighting comfort, thus mastering a Class A metropolitan office space. Ultimately, the proposed hybrid scheme, fostering an optimized behavior of the load bearing members and an absolute minimization of the facade elements, has led to significant improvements: 11\% less steel, 6\% less concrete, 35\% less embodied energy are required, when compared to a standard high-rise construction with identical geometry and featuring steel columns around the perimeter and an aluminum curtain wall facade. %@ 978-1-882352-46-3

@inproceedings{oliva_orbit_2018, abstract = {While most of high-rise buildings feature a core surrounded by a spatial frame defining the volume, one could envision a column-free plan where the perimeter structure is constituted of steel cables, working in tension to suspend the floor plates and transferring the loads to the core by means of story-high trusses located along the perimeter, as well as diagonally across the floor, at the mechanical levels. The steel cables feature custom fittings to support the fully-glazed skin and allow for an optimized redistribution of the loads between the supporting members. The resulting hybrid scheme has beneficial impacts from a structural, sustainability, and indoor environmental quality standpoint. The abundant natural light, penetrating through the fully-glazed skin, is controlled by an adaptive shading system, integrated with the IGU, consisting of perforated steel sheets woven together by two-way shape-memory alloy hinges that enable the component to work like an origami, opening and folding automatically according to the exterior environmental conditions: in the summer, the unfolded geometry creates an external overhang that varies with each panel exposure and alleviates the energy demand required for cooling; in the winter, the folded shape allows for a higher solar heat gain, thus lowering the heating energy demand. Therefore, the self-adaptive skin designed allows for unobstructed views throughout the envelope, as well as for an optimized control of the light, both in terms of energy and of daylighting comfort, thus mastering a Class A metropolitan office space. Ultimately, the proposed hybrid scheme, fostering an optimized behavior of the load bearing members and an absolute minimization of the facade elements, has led to significant improvements: 11\% less steel, 6\% less concrete, 35\% less embodied energy are required, when compared to a standard high-rise construction with identical geometry and featuring steel columns around the perimeter and an aluminum curtain wall facade.}, added-at = {2023-11-27T15:10:57.000+0100}, author = {Oliva, Enrica and Andaloro, Michele and Sobek, Werner}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2de6788dab7873fef2054d5ca1428c765/jmueller}, booktitle = {Facade {Tectonics} 2018 {World} {Congress}, {March} 12-13, 2018, {Los} {Angeles}, {CA}}, interhash = {bbcc7aada432036c2c9efc4cd9e615dd}, intrahash = {de6788dab7873fef2054d5ca1428c765}, isbn = {978-1-882352-46-3}, keywords = {- adaptive alloy, and cable carbon, daylighting dynamic, energy facade, glare hybrid kinetic parametric shading, shape-memory sobek structure-skin workflow,}, pages = {47--64}, timestamp = {2023-11-27T15:10:57.000+0100}, title = {Orbit tower: proposal for a hybrid structural-facade system featuring a self-adaptive solar shading device}, volume = 1, year = 2018 }