Leonard Joseph

Thornton Tomasetti, Inc., Principal | Los Angeles, United States

About

With more than 40 years of experience, Leonard Joseph has analyzed, designed and reviewed high-rise buildings, sports facilities, hangars, hotels, historic buildings, manufacturing facilities, and parking garages. He works with a wide variety of materials, including structural steel, reinforced concrete, precast and post-tensioned concrete, masonry, wood, and light gage framing. For buildings around the world, Len deals with seismic, wind and other environmental hazards, and incorporates local construction practices into his designs.

His project credits include Wilshire Grand Center, a 335-meter mixed-use tower with Buckling Restrained Brace outriggers in a high seismic zone; Shanghai Tower, a 600-meter mixed-use tower; Taipei 101; Ping An International Financial Center, a 660-meter office tower; and the Petronas Twin Towers. Currently, Len is working on the Jeddah Tower, a 1,000-meter mixed-use…

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Leonard Joseph

CTBUH Roles

Working Group: Outrigger Design, Co-Chair (2011 – 2012, 2016 – 2017)

CTBUH Initiatives

Videos

03 March 2008

Tall Buildings: Sustainable Design Opportunities

Akbar Tamboli from Thornton Tomasetti, focused on the incorporation of sustainable structural designs at the CTBUH 8th World Congress. The three major tall buildings he...

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Research

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...

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Research

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...

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You must be a CTBUH Member to view this resource.

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14 September 2017

Performance-Based Seismic Design Technical Guide Now Available

CTBUH is pleased to announce the Performance-Based Seismic Design for Tall Buildings Technical Guide, an output of the PBSD Working Group.

03 March 2008

Tall Buildings: Sustainable Design Opportunities

Akbar Tamboli from Thornton Tomasetti, focused on the incorporation of sustainable structural designs at the CTBUH 8th World Congress. The three major tall buildings he...

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...

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...

01 March 2014

Overview of Seismic Loads and Application of Local Code Provisions for Tall Buildings in Baku, Azerbaijan

Hi Sun Choi, Onur Ihtiyar & Leonard Joseph, Thornton Tomasetti; James Sze, Arup

Baku, the capital of Azerbaijan, has seen a boom in construction in recent years. The old Baku city has been rapidly transforming into a new...

01 September 2012

Outrigger System Design Considerations

Hi Sun Choi and Leonard Joseph, Thornton Tomasetti

Outrigger systems have been widely used in supertall buildings constructed since the 1980’s, eclipsing previously favored tubular frame systems. However, outriggers are not listed as...

01 March 2012

Anything Goes?

Dennis Poon and Leonard Joseph, Thornton Tomasetti

When Cole Porter wrote the song “Anything Goes” in 1934, he did not include skyscraper examples. The recently completed Chrysler and Empire State buildings followed...

03 March 2008

Tall Buildings: Sustainable Design Opportunities

Akbar Tamboli, Leonard Joseph, Umakant Vadnere & Xiao Xu, Thornton-Tomasetti Group

This paper describes three major tall buildings focusing on their incorporation of sustainable structural designs.

10 October 2004

Structural Design of Taipei 101, the World's Tallest Building

Dennis C. K. Poon & Leonard M. Joseph, Thornton Tomasetti; Shaw-Song Shieh & Ching-Chang Chang, Evergreen Consulting Engineering

This paper examines the structural design of the Taipei 101 tower, 101 stories and 508 m above grade, was the newest World’s Tallest Building at...