Research on ‘Complexity Pursuit’ Nets ASCE Prize

March 30, 2017

ASCE has honored the writing team of Yongchao Yang, A.M.ASCE; Shunlong Li, Aff.M.ASCE; Satish Nagarajaiah, Ph.D., F.SEI, M.ASCE; Hui Li, Aff.M.ASCE; and Peng Zhou with the 2017 Raymond C. Reese Research Prize for their paper, “Real-Time Output-Only Identification of Time-Carrying Cable Tension from Accelerations via Complexity Pursuit,” in the Journal of Structural Engineering, January 2016.

This paper highlights the new methodology termed complexity pursuit, which has the capability of computing time-varying cable tension using cable acceleration measurements with only two accelerometers. Currently, anchor load cells, elastomagnetic sensors, and optical fiber Bragg grating sensors are used to directly monitor cable tension history. Unfortunately, these methods often have lackluster performance – i.e., poor durability, high equipment costs, and high installation costs. It is anticipated that the complexity pursuit approach can become an economical, automated health monitoring system for in situ or new cables for cable-supported structures. This is a significant benefit as the number and complexity of cable-supported systems is becoming more predominant.

The Raymond C. Reese Research Prize is awarded to the author or authors of a paper that describes a notable achievement in research related to structural engineering. 

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