Welcome
Digital library of construction informatics
and information technology in civil engineering and construction
 

Works 

Paper w78-2009-1-59:
A comparative study on the use of laser scanners for construction quality control and progress monitoring purposes

Facilitated by the SciX project

G. Atasoy, P. Tang & B. Akinci

A comparative study on the use of laser scanners for construction quality control and progress monitoring purposes

Abstract: Laser scanning is an emerging technology used on construction sites for defect detection and progress monitoring. Most previous studies in this domain use data from a single scanner while discussing various data collection, processing and accuracy analysis strategies. With the purpose of comparing the technical characteristics of two scanners and identifying the challenges of using them on construction sites, we conducted a case study on indoor laser-scanning of one floor of a five-storey commercial building in Pittsburgh/PA/USA during its construction. The two scanners used in this study adopt two different positioning techniques: pulsed-time-of-flight (obtaining the distance to an object by timing the round-trip traveling-time of the laser) and amplitude-modulated-continuous-wave (comparing the phases of emitted and received signals for indirect measurements of laser traveling time). For each tested scanner, we highlight its unique advantages and technical challenges, as well as relevant technical trade-offs regarding their utilization on a construction-site for quality control and progress monitoring purposes. 

Keywords:

DOI:

Full text: content.pdf (390,917 bytes) (available to registered users only)

Series: w78:2009 (browse)
Cluster:
Class:
Similar papers:
Sound: N/A.

 

hosted by University of Ljubljana



includes

W78




© itc.scix.net 2003
Home page of this database login Powered by SciX Open Publishing Services 1.002 February 16, 2003