Douglas R. Rammer
Research General Engineer
Engineering Properties of Wood, Wood Based Materials and Structures
One Gifford Pinchot Drive
Madison, WI 53726-2398
United States
Madison, WI 53726-2398
United States
Phone
608-231-9266
Research Interest
- Engineering Design Criteria
- Mechanical Connection Behavior
- Seismic and Wind Response of Wood Structures
- Condition Assessment
Education
- University of Wisconsin-Madison, M.S., Civil Engineering, 1991
- University of Wisconsin-Madison, B.S., Civil Engineering, 1989
Professional Organizations
- Member, American Society of Civil Engineers - Structural Engineering Institute, Current
- Member, ASTM International, Current
- Member, American Wood Council -Wood Design Standard Committee, Current
- Member, Building Seismic Safety Council - Wood Structures, Current
- Member, National Frame Builders Association, Current
- Member, Wisconsin Professional Engineer, Current
Featured Publications
- Rammer, Douglas R.. 2010. Structural analysis equations
- Rammer, Douglas R.. 2010. Fastenings
- Zelinka, Samuel L.; Rammer, Douglas R.. 2009. Corrosion rates of fasteners in treated wood exposed to 100% relative humidity
- Zelinka, Samuel L.; Rammer, Douglas R.; Stone, Donald S.. 2009. Evaluating the corrosiveness of southern pine treated with several wood preservatives using electrochemical techniques
- Zelinka, Samuel L.; Ortiz-Candelaria, Lorraine; Stone, Donald S.; Rammer, Douglas R.. 2009. Electrochemical impedance spectroscopy (EIS) as a tool for measuring corrosion of polymer-coated fasteners used in treated wood
Patents
- Soltis, Lawrence A.; Ross, Robert J.; Rammer, Douglas R. - 1998 - Localized Notch Reinforcement for Wooden Beams
- Soltis, Lawrence A.; Ross, Robert J.; Rammer, Douglas R. - 1998 - Localized Notch Reinforcement for Wooden Beams
- Rammer, Douglas; Zelinka, Samuel - 2011 - Method and Apparatus for Determining the Surface Area of a Threaded Fastener
Other Publications
- Lo Ricco, Marco; Rammer, Douglas; Amini, M. Omar; Ghorbanpoor, Al; Pei, Shiling; Zimmerman, Reid B.. 2021. Equivalent lateral force procedure for a building with a self-centering rocking story of cross-laminated timber (CLT) walls.
- Zelinka, Samuel; Bourne, Keith; Bechle, Nathan; Rammer, Douglas. 2021. Intermediate-scale test developed to screen adhesive fire performance in glued-laminated timber before full-scale testing
- Amini, M. Omar; van de Lindt, John W.; Rammer, Douglas ; Pei, Shiling. 2021. Rocking Behavior of High-Aspect-Ratio Cross-Laminated Timber Shear Walls: Experimental and Numerical Investigation
- Cho, H.K.; Considine, John; Rammer, Douglas; Rowlands, R.E.. 2018. Design of Bolted Connection in Composite Beams for Moment Resistance
- van de Lindt, J.W.; Bahmani, P.; Jennings, E.N.; Pang, W.; Ziaei, E.; Mochizuki, G.; Gershfeld, M.; Pryor, S.; Shao, X.; Symans, M.; Tian, J.; Rammer, Douglas. 2014. Full-scale testing of soft-story woodframe buildings with stiffness-based retrofits
- Lo Ricco, Marco; Amini, Mohamed Omar; Rammer, Douglas. 2021. Structural analysis equations
- Rammer, Douglas. 2021. Fastenings
- Murphy, Colton ; Pantelides, Chris P.; Blomgren, Hans-Erik ; Rammer, Douglas. 2021. Development of Timber Buckling Restrained Brace for Mass Timber-Braced Frames
- Miyamoto, Byrne ; Bechle, Nathan J.; Rammer, Douglas R.; Zelinka, Samuel L.. 2021. A Small-Scale Test to Examine Heat Delamination in Cross Laminated Timber (CLT)
- van de Lindt, John W.; Amini, M. Omar; Rammer, Douglas ; Line, Philip ; Pei, Shiling ; Popovski, Marjan. 2020. Seismic performance factors for cross-laminated timber shear wall systems in the United States
- van de Lindt, John W.; Furley, Jace ; Amini, M. Omar; Pei, Shiling ; Tamagnone, Gabriele ; Barbosa, Andre R.; Rammer, Doug ; Line, Philip ; Fragiacomo, Massimo ; Popovski, Marjan. 2019. Experimental seismic behavior of a two-story CLT platform building
- Pei, S. ; van de Lindt, J. W.; Popovski, M. ; Berman, J. W.; Dolan, J. D.; Ricles, J. ; Sause, R. ; Blomgren, H. ; Rammer, D. R.. 2016. Cross-laminated timber for seismic regions: progress and challenges for research and implementation
- van de Lindt, John W.; Furley, Jace ; Amini, M. Omar; Pei, Shiling ; Tamagnone, Gabriele ; Barbosa, Andre ; Rammer, Doug ; Line, Philip ; Fragiacomo, Massimo ; Popovski, Marjan. 2018. Experimental seismic behaviour of a two-story CLT platform building: design and shake table testing
- Lo Ricco, Marco ; Ghorbanpoor, Al ; Rammer, Douglas ; Pei, Shiling. 2018. Shaping cross-laminated timber panels to rock and roll as seismic pendulum isolators
- van de Lindt, John W.; Amini, M. Omar; Furley, Jace ; Pei, Shiling ; Tamagnone, Gabriele ; Barbosa, Andre R.; Line, Philip ; Rammer, Douglas ; Fragiacomo, Massimo. 2018. Experimental seismic behavior of a two-story CLT platform bulding: shake table testing results
- Kaliyanda, A. R.; Rammer, D. R.; Rowlands, R. E.. 2019. Three-dimensional nonlinear finite-element analysis of wood steel bolted joints subjected to large deformations
- Rammer, Douglas R.; Williamson, Tom. 2020. Performance of structural insulated panel walls under seismic loading
- Zelinka, Samuel L.; Miyamoto, Byrne ; Bechle, Nathan J.; Rammer, Douglas. 2020. Small scale test to measure the strength of adhesives at elevated temperatures for use in evaluating adhesives for cross-laminated timber (CLT)
- Zelinka, Samuel L.; Sullivan, Ken ; Pei, Shiling ; Ottum, Noah ; Bechle, Nathan J.; Rammer, Douglas R.; Hasburgh, Laura E.. 2019. Small scale tests on the performance of adhesives used in cross laminated timber (CLT) at elevated temperatures
- Lo Ricco, Marco ; Ghorbanpoor, Al , Dr..; Pei, Shiling , Dr..; Rammer, Doug ; Begel, Marshall; Bridwell, James , J..; Zimmerman, Reid B.. 2018. Prototyping a passively self-centering cross-laminated timber rocking wall system: analytical and experimental investigation
- Murphy, Colton ; Pantelides, Chris ; Blomgren, Hans-Erik ; Rammer, Douglas. 2019. Development of timber buckling restrained braces for mass timber braced frames
- van de Lindt, John ; Amini, M. Omar; Rammer, Doug ; Line, Philip ; Pei, Shiling ; Popovski, Marjan. 2016. Developing seismic performance factors for cross laminated timber in the United States
- Amini, M. Omar; van de Lindt, John W.; Rammer, Douglas ; Pei, Shiling ; Line, Philip ; Popovski, Marjan. 2018. Systematic experimental investigation to support the development of seismic performance factors for cross laminated timber shear wall systems
- Pei, S. ; van de Lindt, J.W. ; Ricles, J. ; Sause, R. ; Berman, J. ; Ryan, K. ; Dolan, J.D. ; Buchanan, A. ; Robinson, T. ; McDonnell, E. ; Blomgren, H. ; Popovski, M. ; Rammer, D.. 2017. Development and full-scale validation of resilience-based seismic design of tall wood buildings: the NEHRI Tallwood Project
- Pei, Shiling ; Van de Lindt, John ; Barbosa, Andre R.; Berman, Jeffrey ; Blomgren, Hans-Erik ; Dolan, James ; McDonnell, Eric ; Zimmerman, Reid ; Fragiacomo, Massimo ; Rammer, Douglas. 2018. Full-scale shake table test of a two story mass-timber building with resilient rocking walls
- Zelinka, Samuel ; Pei, Shiling ; Bechle, Nathan ; Sullivan, Kenneth ; Ottum, Noah ; Rammer, Douglas ; Hasburgh, Laura , E... 2018. Performance of wood adhesive for cross laminated timber under elevated temperatures
- Rammer, Douglas R.; Zelinka, Samuel L.; Hasburgh, Laura E, E..; Craft, Steven T.. 2018. Ability of finger-jointed lumber to maintain load at elevated temperatures
- Bahmani, Pouria; van de Lindt, John W.; Gershfeld, Mikhail; Mochizuki, Gary L.; Pryor, Steven E.; Rammer, Douglas. 2016. Experimental seismic behavior of a full-scale four-story soft-story wood-frame building with retrofits I: building design, retrofit methodology, and numerical validation
- van de Lindt, John W.; Bahmani, Pouria; Mochizuki, Gary; Pryor, Steven E.; Gershfeld, Mikhail; Tian, Jingjing; Symans, Michael D.; Rammer, Douglas. 2016. Experimental seismic behavior of a full-scale four-story soft-story wood-frame building with retrofits II: shake table test results
- Bahmani, Pouria; van de Lindt, John; Iqbal, Asif; Rammer, Douglas. 2017. Mass timber rocking panel retrofit of a four-story soft-story building with full-scale shake table validation
- Rammer, Douglas R.; Line, Philip. 2016. Lateral testing of glued laminated timber tudor arch
- Ho, T.; Dao, T.; Aaleti, S.; van de Lindt, J.; Rammer, Douglas. 2016. Hybrid system of unbonded post-tensioned CLT panels and light-frame wood shear walls
- Amini, M. Omar; van de Lindt, John W.; Rammer, Douglas; Pei, Shiling; Line, Philip; Popovski, Marjan. 2016. Determination of seismic performance factors for CLT shear wall systems
- Rammer, Douglas; Wacker, James; Hosteng, Travis; Dahlberg, Justin; Deng, Yaohua. 2016. Field testing and structural analysis of Burr arch covered bridges in Pennsylvania
- Pei, Shiling; Rammer, Douglas; Popovski, Marjan; Williamson, Tom; Line, Philip; van de Lindt, John W.. 2016. An Overview of CLT Research and Implementation in North America
- Yeh, Borjen; Skaggs, Tom; Lam, Frank; Li, Minghao; Rammer, Douglas; Wacker, James. 2011. Evaluation of Force Transfer Around Openings - Experimental and Analytical Studies
- Rammer, Douglas. 2016. Chapter 02218: Wood Mechanical Fasteners
- Kochkin, Vladimir; Rammer, Douglas R.; Kauffman, Kevin; Wiliamson, Thomas; Ross, Robert J.. 2015. SIP Shear Walls: Cyclic Performance of High-Aspect-Ratio Segments and Perforated Walls
- Rammer, Douglas R.; Zelinka, Samuel L.. 2015. Withdrawal Strength and Bending Yield Strength of Stainless Steel Nails
- Jennings, Elaina; van de Lindt, John W.; Ziaei, Ershad; Bahmani, Pouria; Park, Sangki; Shao, Xiaoyun; Pang, Weichiang; Rammer, Douglas; Mochizuki, Gary; Gershfeld, Mikhail. 2015. Full-Scale Experimental Verification of Soft-Story-Only Retrofits of Wood-Frame Buildings using Hybrid Testing
- Bahmani, P.; Lindt, J.W. van de; Pryor, S.E.; Mochizuki, G.L.; Gershfeld, M.; Rammer, D.; Tian, J.; Symans, D.. 2013. Performance-Based Seismic Retrofit of Soft-Story Woodframe Buildings
- Amini, M. Omar; Lindt, John W. van de; Pei, Shiling; Rammer, Douglas; Line, Phil; Popovski, Marjan. 2014. Overview of a Project to Quantify Seismic Performance Factors for Cross Laminated Timber Structures in the United States
- Lindt, John W. van de; Abell, George T.; Bahmani, Pouria; Gershfeld, Mikhail; Shao, Xiaoyun; Pang, Weichiang; Symans, Michael D.; Ziaei, Ershad; Pryor, Steven E.; Rammer, Douglas; Tian, Jingjing. 2013. Full-scale Dynamic Testing of Soft-Story Retrofitted and Un-Retrofitted Woodframe Buildings
- Yeh, Borjen; Rammer, Douglas; Linville, Jeff. 2014. Design of Multiple Bolted Connections for Laminated Veneer Lumber
- Pei, Shiling; Berman, Jeffrey; Dolan, Daniel; Lindt, John van de; Ricles, James; Sause, Richard; Blomgren, Hans-Erik; Popovski, Marjan; Rammer, Douglas. 2014. Progress on the development of seismic resilient Tall CLT Buildings in the Pacific Northwest
- Lindt, John W. van de; Bahmani, Pouria; Gershfeld, Mikhail; Mochizuki, Gary; Shao, Xiaoyun; Pryor, Steven E.; Pang, Weichiang; Symans, Michael D.; Tian, Jingjing; Ziaei, Ershad; Jennings, Elaina N.; Rammer, Douglas. 2014. Seismic Risk Reduction for Soft-Story Wood-Frame Buildings: Test Results and Retrofit Recommendations from the Nees-Soft Project
- Mohammad, Mohammad; Douglas, Bradford; Rammer, Douglas; Pryor, Steven E.. 2013. Chapter 5: Connections Connections in cross-laminated timber buildings
- Lindt, John W. van de; Rammer, Douglas; Popovski, Marjan; Line, Phil; Pei, Shiling; Pryor, Steven E.. 2013. Chapter 4: Lateral design of cross-laminated timber buildings
- Fanous, F.; Rammer, D.; Wipf, T.. 2013. Simplified Analytical Model of a Covered Burr-Arch-Truss Timber Bridge
- Fanous, F; Rammer, D.; Wipf, T.. 2013. Simplified Analytical Model for a Queen-Post Covered Timber Bridge
- Rammer, Douglas; Zelinka, Samuel. 2011. DETERMINAZIONE DELL'AREA SUPERFICIALE DEI SI-STEMI DI FlSSAGGlO / MEASURING THE SURFACE AREA OF FASTENERS
- Bahmani, Pouria; Lindt, John W. van de; Pryor, Steven E.; Mochizuki, Gary L.; Gershfeld, Mikhail; Rammer, Douglas; Tian, Jingjing; Symans, Michael D.. 2014. Performance-Based Seismic Retrofit of Soft-Story Woodframe Buildings
- Lindt, Van De John W.; Bahmani, Pouria; Gershfeld, Mikhail; Kandukuri, Giraj Kumar; Rammer, Doug; Pei, Shiling. 2013. Seismic Retrofit of Soft-Story Woodframe Buildings Using Cross Laminated Timbers
- Rammer, Douglas R.; Moura, Jorge de Melo; Ross, Robert J.. 2014. Structural Performance of the Second Oldest Glued-Laminated Structure in the United States
- Lindt, John W. van de; Bahmani, Pouria; Pryor, Steven E.; Mochizuki, Gary; Gershfeld, Mikhail; Pang, Weichiang; Ziaei, Ershad; Jennings, Elaina N.; Symans, Michael D.; Shao, Xiaoyun; Tian, Jingjing; Rammer, Doug. 2014. Overview of the NEES-Soft Experimental Program for Seismic Risk Reduction of Soft-Story Woodframe Buildings
- Rammer, Douglas R.; Moura, Jorge de Melo. 2013. Structural Evaluation of the Second Oldest Glued-Laminated Structure in the United States
- Zelinka, Samuel L.; Rammer, Douglas R.. 2013. Environmental Degradation of Fiber-Reinforced Polymer Fasteners in Wood
- Zelinka, Samuel L.; Rammer, Douglas R.. 2012. Modeling the Effect of Nail Corrosion on the Lateral Strength of Joints
- Li, Minghao; Lam, Frank; Yeh, Borjen; Skaggs, Tom; Rammer, Doug; Wacker, James. 2012. Modeling Force Transfer around Openings in Wood-Frame Shear Walls
- van de Lindt, John W.; Gupta, Rakesh; Pei, Shiling; Tachibana, Kazuki; Araki, Yasuhiro; Rammer, Douglas; Isoda, Hiroshi. 2012. Damage Assessment of a Full-Scale Six-Story wood-frame Building Following Triaxial shake Table Tests
- Skaggs, Tom; Yeh, Borjen; Lam, Frank; Li, Minghao; Rammer, Doug; Wacker, James. 2011. Modelling Force Transfer Around Openings of Full-Scale Shear Walls
- Wacker, James P.; Wang, Xiping; Rammer, Douglas R.; Woodward, Bessie M.. 2011. NDE investigation of the timber foundation in the historic Kennecott Mine Concentration Mill Building
- Schorer, Alyssa E.; Bank, Lawrence C.; Oliva, Michael G.; Wacker, James P.; Rammer, Douglas R.. 2008. Feasibility of rehabilitating timber bridges with mechanically fastened FRP strips
- Wacker, James P.; Wang, Xiping; Rammer, Douglas R.; Nelson, William J.. 2011. Evaluation of a timber column bent substructure after more than 60 years in-service
- Rammer, Douglas R.; Zelinka, Samuel L.. 2011. Measuring the surface area of fasteners
- Zelinka, Samuel L.; Rammer, Douglas R.. 2011. Synthesis of published and unpublished corrosion data from long term tests of fasteners embedded in wood : calculation of corrosion rates and the effect of corrosion on lateral joint strength
- Wacker, James P.; Wang, Xiping; Kretschmann, David E.; Rammer, Douglas R.. 2010. Nondestructive evaluation of timber highway guardrail posts
- Wacker, James; Wang, Xiping; Rammer, Douglas R.. 2010. Field investigation of a 100-year-old timber crib foundation at a historic copper mine
- Skaggs, Tom; Yeh, Borjen; Lam, Frank; Rammer, Douglas; Wacker, James. 2010. Full-scale shear wall tests for force transfer around openings
- Rammer, Douglas; Zelinka, Samuel. 2010. Optical method for measuring the surface area of a threaded fastener
- Zelinka, Samuel L.; Rammer, Douglas R.; Stone, Donald S.. 2008. Impedance spectroscopy and circuit modeling of southern pine above 20% moisture content
- Zelinka, Samuel L.; Rammer, Douglas R.. 2007. Corrosion avoidance with new wood preservatives
- Przewloka, Simon R.; Crawford, Douglas M.; Rammer, Douglas R.; Buckner, Donald L.; Woodward, Bessie M.; Li, Gan; Nicholas, Darrel D.. 2008. Assessment of biodeterioration for the screening of new wood preservatives : calculation of stiffness loss in rapid decay testing
- Zelinka, Samuel L.; Rammer, Douglas R.; Stone, Donald S.. 2008. Electrochemical corrosion testing of fasteners in extracts of treated wood
- Zelinka, Samuel L.; Rammer, Douglas R.; Wacker, James P.. 2007. Minimizing corrosive action in timber bridges treated with waterborne preservatives
- Schorer, Alyssa E.; Bank, Lawrence C.; Oliva, Michael G.; Wacker, James P.; Rammer, Douglas R.. 2008. Feasibility of rehabilitating timber bridges using mechanically fastened FRP strips
- Rammer, Douglas R.; Zelinka, Samuel L.. 2008. Analytical determination of the surface area of a threaded fastener
- Zelinka, Samuel L.; Rammer, Douglas R.. 2005. The use of electrochemical impedance spectroscopy (EIS) to measure the corrosion of metals in contact with wood
- Rammer, Douglas R.; Line, Philip. 2006. Development of failure mechanisms for fasteners in the United States
- Zelinka, Samuel L.; Rammer, Douglas R.. 2006. Exposure test of fasteners in preservative-treated wood
- Rammer, Douglas R.; Zelinka, Samuel L.; Line, Philip. 2006. Fastener corrosion : testing, research, and design considerations
- Rammer, Douglas R.. 2006. Wood construction codes issues in the United States
- Falk, Robert H.; Green, David; Rammer, Douglas; Lantz, Scott F.. 2000. Engineering evaluation of 55-year-old timber columns recycled from an industrial military building
- Rammer, Douglas R.; Winistorfer, Steve G.. 2001. Effect of moisture content on dowel-bearing strength
- Rammer, Douglas R.. 1999. Evaluation of recycled timber members
- Zelinka, Samuel L.; Rammer, Douglas, R... 2006. Electrochemical method for measuring corrosion of metals in wood
- Rammer, Douglas R.. 2001. Wood : mechanical fasteners
- Zelinka, Samuel L.; Rammer, Douglas R.; Stone, Donald S.; Gilbertson, James T.. 2007. Direct current testing to measure corrosiveness of wood preservatives
- Zelinka, Samuel L.; Rammer, Douglas R.. 2005. Review of test methods used to determine the corrosion rate of metals in contact with treated wood
- Rammer, Douglas R.; Zelinka, Samuel L.. 2004. Review of end grain nail withdrawal research
- Liu, Jen Y.; Rammer, Douglas R.. 2003. Analysis of wood cantilever loaded at free end
- Zanetti, Michela; Rials, Timothy G.; Rammer, Douglas. 2005. NIR monitoring of in-service wood structures
- Zelinka, Samuel L.; Rammer, Douglas R.. 2006. Corrosion avoidance with new wood preservatives
- Rammer, Douglas R.; Mendez, Alina M.. 2008. Withdrawal strength of bright and galvanized annulary threaded nails
- Zelinka, Samuel L.; Rammer, Douglas R.; Stone, D.S.. 2008. Corrosion of metals in contact with treated wood : developing test methods
- Zelinka, Samuel L.; Stone, Donald S.; Rammer, Douglas R.. 2007. Equivalent circuit modeling of wood at 12% moisture content
Research Highlights
Evaluating Fire Performance of Adhesives used in Cross-Laminated Timber
Year: 2020
Our research focuses on the study of how adhesives used to hold wood composites together perform under fire to ensure strong, fire-safe construction.
Approval of Cross Laminated Timber Shear Wall System in U.S. Codes
Year: 2020
Cross Laminated Timber (CLT) is an innovative mass timber product that has now been commonly accepted as a new generation engineered wood product with great potential to expand the wood building market. With the introduction of CLT to the US construction market and the current modern urbanization tr...
Earthquake Resistant, Cross Laminated Timber Shear Wall System
Year: 2019
High and mid-rise wood building are only possible because of the development of an innovative mass timber product called Cross Laminated Timber (CLT). CLT is now commonly accepted as a new-generation engineered wood product with great potential to expand the wood building market. With the introduc...
Development of a Heavy Timber Buckling-Restrained Brace for Tall Wood Buildings
Year: 2019
Recent advancements in timber technologies are pushing mass timber systems into larger commercial-scale markets where steel and concrete systems dominate the landscape. One such market, buckling-restrained braced frames, is a newer type of seismic-force-resisting system used in modern building desi...
Wood Adhesives at High Temperatures
Year: 2018
Researchers examined the performance of finger-jointed lumber to understand how it performs in fire.
Seismic Performance of Cross-Laminated Timber Buildings
Year: 2016
Cross-laminated timber (CLT) buildings are becoming popular in earthquake regions of the United States, but structural engineers need new design methods. Forest Service research is striving to develop methods to design CLT buildings to six stories and beyond that will withstand earthquakes.
Wood Construction Goes Beyond Its Traditional Roots
Year: 2013
As interest in sustainable building options continues to grow. Wood construction is going beyond its traditional roots in housing and expanding into mid-rise, high-rise, and non-residential applications. To support this trend, a new U.S. guide for the early adoption of cross-laminated timber, an inn...
Centennial Edition, Wood Handbook—Wood as an Engineering Material
Year: 2010
The Wood Handbook—Wood as an Engineering Material serves as a primary reference document for a wide variety of users-from the general public through architects and design engineers who use wood in highly engineered structures.