000018766 001__ 18766
000018766 005__ 20170118182240.0
000018766 04107 $$aeng
000018766 046__ $$k2017-01-09
000018766 100__ $$aSaarman, Nicolas Paul
000018766 24500 $$a3d Scanning for Structural Monitoring of Historic California Adobe Structures

000018766 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018766 260__ $$b
000018766 506__ $$arestricted
000018766 520__ $$2eng$$aAt the University of San Francisco Architecture & Community Design Program, the Architectural Engineering curriculum utilizes a Leica ScanStation C10 3D Laser Scanner to document historic structures and monitor their structural behavior. Some of the oldest structures in the State of California are the historic adobe missions built by Native Americans and Spanish Catholic missionaries between 1769 and 1833. California is a region of very high seismic activity, and the adobe structures have withstood significant earthquakes over their lifetime. However, they are sensitive structures in need of active preservation and very few original adobe buildings remain. Working together with local structural engineers who specialize in seismic restoration of historic adobe structures, USF students have scanned Mission Santa Cruz and Mission San Miguel Arcángel, creating extensive 3D point cloud records, and developing architectural drawings which establish the current state of these structures. Completed in 1821, Mission San Miguel Arcángel suffered significant damage in the nearby 2003 San Simeon earthquake. The original adobe structure has undergone partial repairs such as banding at the top of the walls of the Sacristy. Using the 3D laser scanner, thorough scans are stitched together to create full interior and exterior 3D point cloud files, which are processed in Leica Cyclone and then imported into AutoCAD to create detailed line drawings of plans, elevations and sections of significant areas. Wall lean and other indicators of crack progress and deterioration are areas of special focus. With these records, a structural monitoring program has begun to document the condition of the buildings in wet seasons and dry seasons, and to determine the long-term effect of seismic restorations which have been implemented. This paper presents a detailed account of the process, pedagogical value and structural and architectural lessons learned over the course of the 3D scanning of these valuable heritage landmarks.

000018766 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018766 653__ $$a3D laser scanning; adobe; seismic; engineering education; California missions

000018766 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018766 720__ $$aSaarman, Nicolas Paul$$iBazan, Cindy Judith Arce$$iBöttger, Hana
000018766 8560_ $$ffischerc@itam.cas.cz
000018766 8564_ $$s892690$$uhttps://invenio.itam.cas.cz/record/18766/files/2196.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2196.
000018766 962__ $$r16048
000018766 980__ $$aPAPER