Monitoring device for tension members of soil or rock anchors, compression members of poles, prestressing elements for prestressed concrete structures and bridge cables

A device for monitoring a structural element, comprising:

• sensor means for producing at least one sensor signal;
• conduit means disposed in proximity to the structural element for receiving said sensor means, said sensor means being movable within said conduit means;
• and
• evaluation means for receiving and processing said at least one sensor signal, whereby to evaluate the structural element;
• said conduit means being U-shaped and comprising first and second legs interconnected by a tube bend.

A monitoring device for structural elements contained within an opening in an overall structural arrangement, said structural elements being for tension members of ground anchors, pole compression members, prestressing elements for prestressed concrete structures, and bridge cables comprising:

• conduit means defining a bore, extending substantially parallel to said structural elements within the overall structural arrangement, said structural elements located within said opening, said bore including a sensor conduit;
• sensor means for producing at least one sensor signal within said sensor conduit, said sensor means being movably mounted within said sensor conduit;
• evaluation means for receiving and processing said at least one sensor signal responsive to changes in said structural elements;
• and wherein
• said sensor conduit means and said sensor means are threadably interconnected.

A monitoring device for structural elements contained within an opening in an overall structural arrangement, said structural elements being for tension members of ground anchors, pole compression members, prestressing elements for prestressed concrete structures, and bridge cables comprising:

• conduit means defining a bore, extending substantially parallel to said structural elements within the overall structural arrangement, said structural elements located within said opening, said bore including a sensor conduit;
• sensor means for producing at least one sensor signal within said sensor conduit, said sensor means being movably mounted within said sensor conduit means;
• evaluation means for receiving and processing said at least one sensor signal responsive to changes in said structural elements;
• and wherein
• said evaluation means includes a data memory connected to said sensor means for receiving and storing said at least one sensor signal.

A monitoring device for structural elements contained within an opening in an overall structural arrangement, said structural elements being for tension members of ground anchors, pole compression members, prestressing elements for prestressed concrete structures, and bridge cables comprising:

• conduit means defining a bore, extending substantially parallel to said structural elements within the overall structural arrangement, said structural elements located within said opening, said bore including a sensor conduit;
• sensor means for producing at least one sensor signal within said sensor conduit, said sensor means being movably mounted within said sensor conduit;
• evaluation means for receiving and processing said at least one sensor signal responsive to changes in said structural elements;
• and wherein
• said sensor means includes at least one transmitter coil and at least one magnetic field sensor, said at least one transmitter coil generating a magnetic field, variations in which are detected by said at least one magnetic field sensor.