Welcome to the Structural Engineering Home Page

 

This web site serves as a comprehensive resource to students in structural engineering classes taught by Dr. Nadim Wehbe.  This page contains links to class pages, professional societies, instructor's home page, and news updates.

The Lohr Structures Laboratory

The Lohr Structures Laboratory (LSL) is a 4000 ft2 high-bay/strong-floor structural testing facility. The high bay area is 39' wide, 90' long, and 28' high.  A control room and a storage room open to the high bay area.  The strong floor is a 4' thick reinforced concrete slab. The slab is fitted with a matrix of embedded threaded anchors spaced at 1' interval.  The pull out force capacity of each anchor is 25 kips.  The facility is equipped with a 15-ton overhead traveling bridge crane.  The interior space is configured to accommodate load testing of large-scale test specimens and full-scale bridge girders.

LSL is located at the South-East side of Crothers Engineering Hall extension.  The lab is used for research and teaching in the field of structural engineering at South Dakota State University.

 

Equipment currently available at LSL:

  • Large Capacity MTS Hydraulic Actuator (Qty: 1): 326 kip Compression/216 kip Tension; ±15″ Stroke; Static/Low Cycle Fatigue
  • Medium Capacity MTS Hydraulic Actuator (Qty: 1): 146 kip Compression/100 kip Tension; ±10″ Stroke; Static/Low Cycle Fatigue
  • Low Capacity Hydraulic Actuator (Qty: 2): 22 kip Tension/Compression; ±5″ Stroke; Static/Dynamic
  • Loading Steel Frame (Vertical and Lateral Loading)
  • 100-Ton 10″ Stroke Hollow Plunger Cylinder (Qty: 2)
  • MTS Universal Testing Machine Rated at 55 kips; Static/Dynamic Loading
  • 1″ and 1⅜″ Diameter Prestressing Bars
  • 72-Channel Megadac Data Acquisition System

Click here to view images of LSL during construction

Exterior View of the Lohr Structures Lab

 

Interior View of the Lohr Structures Lab
 

Setting up a test of a full-scale prestressed bridge girder

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