Wonjae Yoo

Lotte World Tower Model Development 1. Building Information • Location: Seoul, South Korea • Description: - 123-floor - 555-meter skyscraper - The 6th tallest building in the world - Opened on April 11, 2017 - Served for offices, hotels, and residence 2. Mass Design The building has been divided into two parts: bottom and top. NURBS was created in Grasshopper with degrees of three and based on the points in the figure. The NURBS was stacked up to form the bottom part of the model. Later, only the top and bottom of NURBS were used to make a loft. The remaining parts were regarded as useless ones and removed from the model. To make the top part of the model, the reference curve was created based on 'scale non-uniform factor' nodes. The NURBS created in the previous step was resized to have 40% of the original size using this 'scale non-uniform factor' node. Lofts were used four times to form north

Lotte World Tower Model Development 1. Building Information • Location: Seoul, South Korea • Description: - 123-floor - 555-meter skyscraper - The 6th tallest building in the world - Opened on April 11, 2017 - Served for hotel, residence, and offices 2. Parametric Mass Design First, multiple reference planes were created to make a truss parametrically work. Based on the planes, reference lines were created to shape the basic form of the truss body. Along the reference line, a round shape form was created. The sizes (width & length) of the top and bottom rectangular were set to be half of the size (width & length) of the middle octagon. An adaptive family consisted of two adaptive points and one reference line was loaded into the body truss and created the remaining part of the truss. An angle between two yellow lines was set to be parametrically changed. The first trial for making the outer walls by pickin