Publications

Seismically Isolated Building Bares All

1908 Shattuck Avenue is perhaps the country's smallest seismically isolated commercial building. This article describes the unique circumstances from which this project arose and how the challenges of strict zoning codes and building requirements spurred engineering innovation.

by Steven B. Tipping, Tim Strickland, and Gina T. Phelan

Unique Showcase for Isolators

In 1908 Shattuck Avenue, Steven Tipping has developed and engineered what is likely the world’s smallest seismically isolated structure. The 7,500-sq-ft building in Berkeley about a half-mile from California’s Hayward fault is an investment property as well as an office expansion.

by Nadine M. Post

1908 Shattuck Avenue: SEAOC Awards Display Board

It’s not often that a new building’s structural engineer is also its developer — and the synergies arising from this pairing are equally rare. How can seemingly opposing priorities and objectives combine positively? How might a developer’s challenges transform into innovative seismic engineering that simultaneously educates the public about seismic resilience? The Tipping Structural Engineers mixed-use project at 1908 Shattuck Avenue in Berkeley, CA, is that unique result of the interdependence between creative engineering, real-estate development strategies, and a passion to share knowledge.

by Tipping Structural Engineers; graphic design by Gina T. Phelan

740 Heinz Avenue: Display Board

This is the display board that formed part of our winning entry, 740 Heinz Avenue, at the NCSEA 2016 Excellence in Structural Engineering Awards. The project fetched Outstanding Project in the "New Building $10 Million to $30 Million" category.

by Tipping Structural Engineers; graphic design by Gina Phelan

Putting a Good Spin on Value Engineering

Tipping's novel pivoting concrete core saves San Francisco developer TMG Partners $4 million on the retrofit of 680 Folsom Street.
From the October 14, 2013 issue of Engineering News Record.

by Nadine Post

Renovating 680 Folsom Street

Seismic Retrofit of a 1960s Steel Moment-Frame Highrise Using a Pivoting Spine
The thirteen-story “Class C” office building in downtown San Francisco was upgraded to a “Class A” of fourteen stories. In a bold move of innovation, a thousand-year-old concept was coupled to a 21st century friction bearing pendulum in upgrading the structure's seismic performance. This paper was originally presented at the 2013 SEAOC Convention in San Diego, CA.

by Bill Janhunen, PE; Steven B. Tipping, SE; John Wolfe, SE

680 Folsom Street: Display Board

This is the display board that formed part of our winning entry to the 2014 NCSEA Excellence in Structural Engineering Awards; 680 Folsom was awarded Outstanding Project in the renovation/retrofit/alteration category. The project also garnered an Award of Excellence at the 2014 SEAOC Excellence in Structural Engineering Awards.

by Tipping Structural Engineers; graphic design by Gina Phelan

Tensioning Eases Stress

Resilient concrete structure, with post-tensioned core walls, helped save a budget-challenged building project in seismic San Francisco.
In this cover story for Engineering News Record's February 20, 2012 issue, Nadine Post relates how the switch from a steel frame to Tipping's innovative post-tensioned concrete structure rescued the San Francisco Public Utilities Commission Headquarters building.

by Nadine Post

High-Performance Concrete Structures

The San Francisco Public Utilities Commission Headquarters is illustrative of how high-performance concrete structures can be redefined.
A case study of an innovative structural design that helped achieve an aggressive balance between stringent seismic criteria and ambitious sustainability goals. This cover story appeared in the November 2012 issue of Concrete International.

by Leo Panian, Phillip Williams, and Mike Donovan

SFPUC Headquarters: Display Board

This is the display board that formed part of our winning entry on the San Francisco Public Utilities Commission Headquarters at the NCSEA 2013 Excellence in Structural Engineering Awards. The project fetched Outstanding Project for new construction over $100 million, beating out NYC's Freedom Tower (One World Trade Center)!

by Tipping Structural Engineers; graphic design by Gina Phelan

Green at Its Core

An innovative and robust seismic frame is a key part of a San Francisco office building’s sustainable strategy and its bid for LEED Platinum.
The June 2011 issue of Architectural Record featured this article about Tipping's innovative design for the San Francisco Public Utitlities Commission Headquarters, at the time in construction on Golden Gate Avenue.

by Joann Gonchar

Sustainability through Strength

Integrating post-tensioned lateral systems and slag cement concrete for a model of environmental architecture
The LEED Platinum-certified David Brower Center in downtown Berkeley provides offices and meeting space for environmental advocacy and nonprofit groups. The project incorporates many features of sustainable design in the structural, mechanical, electrical, plumbing, and lighting systems. From the March 2009 issue of Concrete International.

by Mark Stevenson and Leo Panian

PT Concrete Walls and Frames

A case study describing an innovative application of post-tensioned concrete construction in the new David Brower Center urban mixed-use development. This paper was first given at the 2008 SEAOC Annual Convention.

by Mark Stevenson, Leo Panian, and Mike Korolyk

David Brower Center: Display Board

This is the display board that accompanied Tipping's entry to SEAOC's 2010 Excellence in Structural Engineering Awards, the David Brower Center. The project won the award for excellence in the sustainable-projects category.

by Tipping Structural Engineers; graphic design by Gina Phelan

Steve Tipping: 2013 Top 25 Newsmaker

For the second time, Engineering News Record named Steve Tipping to their list of Top 25 Newsmakers.
The ENR Newsmakers are chosen annually for their innovations and achievements, for giving back to the industry and the public, and for going beyond their day-to-day jobs.

by Nadine M. Post

Carquinez Senior Apartments

In August 2011, the Carquinez Senior Apartments, Tipping's entry to the 14th Annual NCSEA Excellence in Structural Engineering Awards, was declared one of three winners in the category of Forensic/Renovation/Retrofit/Rehabilitation Structures. This is the project description included in our awards submissions.

by Tipping Structural Engineers

Carquinez Senior Apartments: Display Board

This is the display board that formed part of our winning award submission (the Carquinez Senior Apartments) to the NCSEA 2011 Excellence in Structural Engineering Awards.

by Tipping Structural Engineers; graphic design by Gina Phelan

Hearst Greek Theatre: Display Board

This is the display board that formed part of our entry to the NCSEA 2013 Excellence in Structural Engineering Awards. In 2013 Greek Theatre project won excellence awards in the Historic Preservation category at NCSEA and SEAOC, and an award of merit at SEAONC.

by Tipping Structural Engineers; graphic design by Gina Phelan

Post-Tensioned Shotcrete Shearwalls

An innovative approach to earthquake safety and concrete construction in buildings
This paper describes the use of post-tensioned shotcrete shearwalls for the seismic renovation of a six-story concrete office building.
Concrete International, October 2007

by Leo Panian, Marc Steyer, and Steven Tipping

PT Walls for Seismic Resistance

Post-Tensioned Concrete Walls For Seismic Resistance
An innovative approach to earthquake safety and concrete construction in buildings
This paper describes the conceptual background of and provides basic guidelines for the design and construction of hybrid post-tensioned cast-in-place (PT-CIP) concrete walls for seismic resistance.
PTI Journal, July 2007

by Leo Panian, Marc Steyer, and Steven Tipping

Corrugated Sheet-Steel Shear Walls Research Report

The objective of the research is to develop an alternative lateral bracing system comprising corrugated sheet steel shear walls for use with light-framed cold-formed steel buildings.
Report to Charles Pankow Foundation, April 30, 2008

by Bozidar Stojadinovic and Steven Tipping

Corrugated Sheet-Steel Shear Walls Display Board

This is the display board that accompanied Tipping's winning entry to SEAOC's 2009 Excellence in Structural Engineering Awards.
"Corrugated Sheet-Steel Shear Wall Research" was selected to receive an Award of Excellence in the category of Study/Research/Guidelines by an independent jury of seven panel members representing all four regional sections of SEAOC.

by Tipping Structural Engineers; graphic design by Gina Phelan

FEMA P807: Guidelines for Seismic Retrofit of Weak-Story Wood-Framed Buildings

The FEMA P-807 Guidelines for Seismic Retrofit of Weak-Story Wood-framed Buildings are cost-effective retrofit procedures for a vulnerable class of buildings with a history of poor performance in earthquakes in the United States.

by Tipping Structural Engineers

2150 Shattuck

Performance-Based Seismic Upgrade of a 14-Story Suspended Slab Building Using State-of-the-Art Analysis and Construction Techniques
The gravity system of the existing structure includes a patented tension-hanger suspended floor system that is supported from the top of twin concrete tower cores.

by Leo Panian

The Landmark at One Market Street

Capacity Design of a Seismic Retrofit for an Historic High-Rise Building Using Practical Analytical Methods
This paper presents an overview of analysis methodologies used for a seismic rehabilitation of One Market Street, an historic high-rise building.

by Leo Panian

Bayview Federal Bank

Bayview Federal Bank: A Low-Impact Seismic Upgrade using Fiberglass Wraps and Pin Piles
This paper describes a voluntary seismic upgrade for an unusual fifteen story office building with floors suspended from two concrete cores.

by Tipping Structural Engineers

Headed Bars

Seismic Retrofit of Shear Walls with Headed Bars and Carbon Fiber Wrap
This paper describes research on the seismic retrofit of reinforced concrete shear walls that was undertaken to investigate proposed seismic improvements for an existing building.
Journal of Structural Engineering, May 2003

by James Paterson and Denis Mitchell, M.ASCE

Smart Frame

A New High-Performance Seismic Technology
The Story Isolation System allows structural designers unprecedented control over a building's sesimic response by allowing them to set the period and level of damping.
Ninth U.S.-Japan Workshop on the Improvement of Structural Design and Construction Practices, August 2000 (updated December 2002)

by Steven Tipping

Evolving Micro-piles

Optimizing Foundation Systems for Seismic Retrofit
The case history of a seismic retrofit project in Berkeley, CA, is presented to illustrate the collaboration between designers and drilling specialist that resulted in a structurally efficient and cost effective design.

by Rob Jameson, Leo Panian, and Bill Rudolph

Seismic Design of Micropile Foundation Systems

Over the last decade, drilled and postgrouted micropile foundations have come to be increasingly relied on for resisting seismic loads in building foundations on the West Coast.
Micropiles have been successfully deployed in a range of soil conditions, in vertical as well as battered configurations, to support a variety of structural systems on difficult soils. This paper describes the design approaches and the analytical methods for the seismic design of hybrid micropile foundations and provides examples of recent construction projects that demonstrate the application.

by Leo Panian, S.E., and Mike Korolyk, S.E.