April 4, 2017

Restoring Alignment to Distorted Stackable Modules

By: Diego Arabbo, Matthew Gilbertson

Civil + Structural Engineer magazine published a case study by Simpson Gumpertz & Heger (SGH®) senior staff members detailing the condition assessment and repair of steel removable submarine covers (RSCs) at the Portsmouth Naval...

Services:Structural Investigation
Keywords:Condition Assessment
March 30, 2017

The Best Fixes

By: John Porter, Nathan Boutin

Parking structures are an integral element in our daily lives that create an interchange between our homes, our destinations, and our built environment. These structures are often incorporated into buildings, integrated into the surrounding...

Services:Structural Rehabilitation
Markets:Parking
Keywords:Concrete Rehabilitation, Parking Structure
March 7, 2017

Performance of Ledges in Inverted-T Beams

By: Nancy Varney, David B. Garber, Eulalio Fernández Gómez, Oguzhan Bayrak

Researchers have not extensively studied the behavior of inverted-T (IT) beams experiencing ledge failures. The work described in this paper aims to fill that gap in knowledge by providing data from tests conducted on full-scale IT beams. To the...

Services:Structural Investigation
Keywords:Concrete, Failure Investigation
March 6, 2017

The Case of the Car Dealership Floor Failure

By: Emily Hopps, Peter Nelson

CoatingsPro magazine recently published a case study in its January 2017 issue authored by Simpson Gumpertz & Heger (SGH) senior staff members. In “The Case of the Car Dealership Floor Failure,” Associate Principal...

Services:Building Enclosure Investigation, Materials Investigation
Keywords:Flooring, Flooring and Coatings
March 1, 2017

Divine Design: Renovating and Preserving Historic Houses of Worship, Part IV

By: Nathaniel Smith, Milan Vatovec

This series of articles discusses a number of commonly encountered structural issues on renovation and restoration projects that focus on historic houses of worship, and provides guidance on ways to address them. Parts one, two, and three of this...

Services:Structural Rehabilitation
Keywords:Historic, Preservation Technology
March 1, 2017

Divine Design: Renovating and Preserving Historic Houses of Worship, Part II

By: Nathaniel Smith, Milan Vatovec

This series of articles discusses some of the commonly encountered structural issues with renovation projects focusing on historic buildings of this type, and provides guidance on ways to address them. Part two of this series focuses on wall...

Services:Structural Rehabilitation
Keywords:Historic, Preservation Technology , Walls
February 8, 2017

Restoration of 100-Year-Old Domed Roof

By: Daniel Clark, Kelsey Dunn

West Hall, one of the many historic campus buildings designed by Albert Kahn (one of the leading American industrial architects of his day), is located on South University Avenue on the University of Michigan’s Central Campus. The building...

Services:Building Enclosure Rehabilitation
Markets:Education - College & Prep
Keywords:Historic, Metal-Copper
February 1, 2017

Behavior of Deconstructable Steel-Concrete Shear Connection in Composite Beams

By: Mark Webster, Lizhong Wang, Jerome F. Hajjar
A new deconstructable composite floor system consisting of precast concrete planks and deconstructable clamping connections is proposed to promote sustainable design of composite floor systems within steel buildings through comprehensive reuse of all key structural components.
Services:Structural Design
Keywords:Green / Sustainable Design
February 1, 2017

Diaphragm Behavior of Deconstructable Composite Floor Systems

By: Mark Webster, Lizhong Wang, Jerome F. Hajjar
This study investigates the seismic behavior of deconstructable composite steel/concrete floor systems consisting of precast concrete planks and deconstructable clamping connections attaching the planks to the steel floor beams.
Services:Structural Design
Keywords:Green / Sustainable Design, Seismic Analyses
January 23, 2017

Experimental Study of Deformable Connection Consisting of Buckling-Restrained Brace and Rubber Bearings to Connect Floor System to Lateral Force Resisting System

By: Georgios Tsampras, Richard Sause, Robert B. Fleischman, Jose I. Restrepo

This paper presents experimental and numerical studies of a full-scale deformable connection used to connect the floor system of the flexible gravity load resisting system to the stiff lateral force resisting system (LFRS) of an earthquake-...

Services:Structural Design
Keywords:Seismic Engineering and Retrofit

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