000019075 001__ 19075
000019075 005__ 20170118182258.0
000019075 04107 $$aeng
000019075 046__ $$k2017-01-09
000019075 100__ $$aRosenboom, Owen
000019075 24500 $$aEarthquake Damage Resulting From Slab-On-Ground Trenching

000019075 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019075 260__ $$b
000019075 506__ $$arestricted
000019075 520__ $$2eng$$aA code review of current requirements for trenching, or sawcutting of existing slabs-on-ground to accept utilities, was performed for buildings in seismic zones and areas susceptible to liquefaction and differential settlement. The resulting review shows that there are few requirements or recommendations for this practice for existing buildings. A generalized code amendment is suggested in an effort to ensure that proper detailing and design are implemented. Architects, mechanical engineers, and plumbers are often performing trenching procedures with very little input from structural engineers. The resulting trench results in slabs that may perform poorly in large earthquakes where soil settlement occurs and the ability of the slab to accommodate differential settlement is compromised due to the poorly detailed slab and underlayment at trenching locations. Common details currently used by structural and other engineers are evaluated and critiqued for resistance to liquefaction and differential settlement, and a detail is suggested. This paper stems from the authors’ experience in investigating damage following earthquakes, including the recent Napa earthquake in California, where significant (and costly) damage was encountered due to poorly detailed subbase/subgrade systems and patches in slabs-on-ground at trenching locations.

000019075 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019075 653__ $$aSlab-on-Ground; Trenching; Liquefaction; Differential Settlement; Earthquake Damage Assessment

000019075 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019075 720__ $$aRosenboom, Owen$$iGreer, Michael$$iKehoe, Brian
000019075 8560_ $$ffischerc@itam.cas.cz
000019075 8564_ $$s329022$$uhttps://invenio.itam.cas.cz/record/19075/files/2792.pdf$$yOriginal version of the author's contribution as presented on USB, paper 2792.
000019075 962__ $$r16048
000019075 980__ $$aPAPER