Douglas E. Ritzmann P.E.

Senior Engineer

Mr. Ritzmann has over eight years of experience in the structural design and analysis of commercial and industrial facilities. Mr. Ritzmann has extensive experience in the design of steel structures (braced and moment frames), reinforced concrete foundations (spread footings, mats, piles and caissons), reinforced masonry, and precast concrete tilt-up panels. He is practical experience in the design of all types of structures associated with industrial and manufacturing facilities. He has also performed extensive designs conforming to the seismic provisions of various building codes.

Mr. Ritzmann has extensive experience in the application of computer aided structural design for commercial and industrial facilities. Mr. Ritzmann is proficient in analyzing and designing structures using RISA 3D with special expertise in performing seismic dynamic analyses (according to UBC 1997 or ASCE 7 code requirements) and dynamic vibration analyses.

Bachelor of Science, Civil Engineering - Purdue University – 1995

Professional Engineer – Illinois

Carolina, Fajardo, Coamo, Trujillo Alto, Catano, Plaza Tropical, Cidra and Arecibo, PR.
Lead structural engineer responsible for the design of the structural steel and reinforced concrete for each new 17,000 sq ft store. Performed design per applicable building code incorporating 125 mph wind load and seismic zone 3 loading criteria. Coordinated structural design with the architectural requirements of each individual location.

Morovis, PR.
Designed buried reinforced concrete tank for storm water retention. This tank was sized to retain 60,000 gallons at a depth of 20’-0” below grade.

Pottery Barn Kids, Oak Brook, Illinois
Provided structural review of an existing roof structure for the support of new HVAC units. Performed necessary calculations to review existing design and analyze proposed layout.

Restoration Hardware, Oak Brook, Illinois
Provided an investigation of the existing structural system to determine its ability to carry two relocated HVAC units. Designed and detailed auxiliary steel supports as required.

Rotem, Israel
Lead structural engineer responsible for all aspects of the steel and concrete design related to the project. The project consisted of three new steel support structures as well as the seismic retrofit of an existing structure. Foundation designs for all new structures and tank farm area also included. Provided coordination with Israeli engineer of record to ensure conformance with local design and detailing requirements.

Greif, Riverville, Virginia
Lead structural engineer responsible for the design and development of structural steel and reinforced concrete drawings for this Black Liquor facility. Three-dimensional model utilized to optimize this steel structure within a very aggressive schedule.

Calpine, Hudson, Colorado
As structural engineer, developed design drawings for both structural steel and reinforced concrete design for this 35,000 sq ft Zero Liquid Discharge facility. Designed and detailed foundation supports for grade level equipment, structural steel platforms and pre-engineered buildings. Responsible for the management and coordination of all design drawings.

Virginia Gas, Saltville, Virginia
Lead structural engineer responsible for all aspects of concrete and steel design related to the project. Developed a three-dimensional computer model for the structural steel design of both a crystallizer and heater tower contained within a pre-engineered building. Designed and detailed all foundations for the support of the structural steel towers as well as the pre-engineered building. This design included the development of a large concrete mat for the support of the heavier process loads. Also coordinated all support pads and auxiliary steel required for the process equipment throughout this 13,000 sq ft facility.

Airborne, Ghent, Kentucky
Developed three-dimensional models for the design of three individual product skids. Each skid had three levels and supported multiple vessels. Analyzed each skid individually for various lifting positions since they were to be shipped horizontally with all equipment in place and rotated to their vertical positions at the site.

Indeck, Corinth, New York
Structural engineer working with the client to develop a pipe rack design. This task included the analysis of the pipes as well as the design of individual pipe supports and a pipe bridge over a railroad easement. Also assisted in the development of foundations for the support of a pre-engineered building.

Australian Paper, Southern Australia
As structural engineer, provided design assistance in all aspects of the project. Incorporated current Australian design standards in multiple three dimensional models of steel structures for the support of various equipment.

Weyerhauser, Dryden, Ontario
Structural engineer provided engineering, design and construction support for the design of a Black Liquor support structure. Responsibilities included the development of a three-dimensional computer model for a portion of the facility and the development of the design drawings.

AmerAlia, Meeker, Colorado
Lead structural engineer responsible for design and development of design drawings for this multi-story mining facility. Also provided design for three mile pipe rack. Developed three- dimensional computer model of the steel structure and designed all building and tank foundations for the facility.

Georgia-Pacific, Port Hudson, Louisiana
Lead structural engineer responsible for all aspects of the project. Developed computer model to design structure for the support of two crystallizers. Provided management and coordination for the development of all design drawings.

Murrin-Murrin, Western Australia
Responsible for structural design calculations for all aspects of this four-story, 1 300-square-meter project that related to structural steel design. Developed a three-dimensional computer model of the steel structure using RISA-3D computer software. Responsibilities included development and accuracy of the design drawings for the project.

WE Power, Port Washington, Wisconsin
Structural engineer responsible for the design of non-standard steel framing connections. Provided coordination with detailer to ensure conformance with the standard beam and bracing connections.

Plant Upgrades/Modifications, Various USG Plants
Lead structural engineer responsible for the design and execution of multiple projects at USG production plants. Worked closely with USG Corporate Engineering and plant personnel to ensure successful completion of all projects.

Blood Fractionation Facility, Los Angeles, California
Lead structural engineer accountable for the design and development of all structural drawings and documents. Provided coordination among all other disciplines for this 90,000 SF facility. Entire structure designed to meet seismic provisions per 1997 Uniform Building Code.

Building Addition, Caguas, Puerto Rico
Responsible for the structural design calculations and drawings for this two-story, 30,000 SF building addition. In this role, provided management and coordination for all structural aspects of the project.

Bridge Inspections Chicago, Illinois
Structural engineer for inspection of five bridges. Developed drawings detailing the findings of bridge inspections. Also responsible for preparing the final bridge condition report submitted to the client.

Chicago 911 Project
Member of the computer-aided dispatch closeout team on the Chicago 911 project. Involvement included the daily management of subcontractor software and documentation activities. Also served as liaison between the software subcontractor and the City of Chicago. In this role, provided management and coordination of software releases, hardware upgrades, and training activities. Also served as project training coordinator for all subcontractor training delivered to City of Chicago personnel and assisted in all City of Chicago field training activities.