03 April 2023

Should All-Electric Buildings be Mandated?

Teresa Jan & Jeffrey Heller

As part of a broader campaign to achieve net-zero carbon emissions in California by 2045, cities such as Los Angeles have enacted ordinances mandating all...

01 September 2018

Design and Applications of Buckling-Restrained Braces

Atsushi Watanabe, Nippon Steel & Sumikin Engineer

Buckling-Restrained Braces (BRBs) have been widely applied to tall buildings in seismic areas in the world. In this paper the author summarizes representative types of...

05 February 2018

2017: Skyscraper History’s Tallest, Highest- Volume, and Most Geographically Diverse Year

This 2017 Tall Building Year in Review / Tall Buildings in Numbers data analysis report shows that more buildings of 200 meters’ height or greater...

08 August 2017

Frontiers in High-Rise Outrigger Design

Hi sun Choi & Leonard M. Joseph, Thornton Tomasetti; SawTeen See, Leslie E. Robertson Associates; Rupa Garai, Skidmore, Owings & Merrill LLP

In 2012, CTBUH published the first Outrigger Design for High-Rise Buildings Technical Guide. In 2016, the CTBUH Outrigger Working Group felt it would be beneficial...

17 October 2016

Megacities: Setting the Scene

Daniel Safarik, Shawn Ursini & Antony Wood; Council on Tall Buildings and Urban Habitat

The rise of the megacity presents unprecedented opportunities to understand the human urbanization phenomenon, and to observe the effects of multicore, polycentric cities growing together...

01 March 2016

Wilshire Grand: Outrigger Designs and Details for a Highly Seismic Site

Leonard M. Joseph, C. Kerem Gulec, and Justin M. Schwaiger, Thornton Tomasetti

The 335 m tall Wilshire Grand Center tower under construction in Los Angeles illustrates many key outrigger issues. The tower has a long, narrow floor...

26 October 2015

FaçadeRetrofit.org: An Online Database Resource for the Façade Renovation of Existing Buildings

Andrea Martinez, Karen M. Kensek & Douglas Noble, University of Southern California; Mic Patterson, Enclos Corp.

Much of the existing tall building stock is burdened with aging and underperforming façades, resulting in opportunities to substantially improve building performance through façade retrofit....

11 June 2014

Highest Helipads

CTBUH Research

In this installment of Tall Buildings in Numbers, CTBUH considers how helipads are used on skyscrapers, and which are the highest in the world. The...