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The Main Equipment and The Development Program

  

1.The Main Equipment

Experimental System for Large Structural Models
Static/dynamic load and displacement can be applied to the models. In addition, pseudo-dynamic testing also can be executed by connecting the computer with this system through GP-IB and the Internet.

    The loading exuipments are as follows.

 ◆ Materials Strength and Fatigue Testing Machine 1,000kN Hydraulic Servo Control

  ・Load capacity : 1,000kN
  ・Maximum/Minimum stroke :
-150mm / +150mm
  ・Compressive, tensile load and bending moment can be applied.
  (Produced by Saginomiya)
                

 ◆ Materials Strength and Fatigue Testing Machine 500kN Hydraulic Servo Control
  ・Load capacity : 500kN
  ・Maximum/Minimum stroke : -150mm / +150mm
  ・Compressive, tensile load and bending moment can be applied.
  (Produced by Saginomiya)
                

 ◆ Materials Strength and Fatigue Testing Machine 100kN Hydraulic Servo Control
  ・Load capacity : 100kN
  ・Maximum/Minimum stroke : -150mm / +150mm
  ・Compressive, tensile load and bending moment can be applied.
  (Produced by Saginomiya)
                

 ◆ 6,000kN Hydraulic Jack
  ・Load capacity : 6,000kN (Compression)
  ・Maximum stroke : 500mm

  ・Compressive, tensile load and bending moment can be applied.
  ・Maximum displacement size of loading area is 400mm×400mm
                

 ◆ 1,000kN Hydraulic Servo Testing Machine
  ・Load capacity : 1,000kN (Compression)
  ・Maximum stroke : 300mm
  (Produced by Saginomiya)
                

 ◆  Three Axial Shake Table 
  ・This machine can simulate three directions cyclic motion such as seismic motion.
  ・Maximum loading weight : 15kN
  ・Maximum velocity  Vertical:45cm/s , Longitudinal/Lateral : 80cm/s
  ・Range of frequency : 0.5〜50Hz
  ・Shake table size : 1.5m×1.5m
  (Produced by Saginomiya)
                
                                                     
2.The Development Program

  ◆ EPASS/USSP
Elasto-Plastic and Finite Displacement Analysis Program for the Steel plated Structures developed by our laboratry and EPASS group.

 Analysis type    ・static analysis
               ・dynamic analysis
               ・eigen value analysis

 Elements      ・beam-column element
               ・rod element
               ・scalar spring element
               ・plate element [3nodes,4nodes]
               ・catenary cable element
               ・fibre element
               ・stiffener element
               ・solid element
               ・buried reinforced bur element
               ・contact/separate element

  Examples of eigen value analysis of the steel arch bridgeby EPASS/USSP
                      

                                         steel arch bridge model

         


              1st mode                                      2nd mode


         


              3rd mode                                      4th mode



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