Shallow shear anchor bolts for structural seismic strengthening of columns with wing wall

Title: Shallow shear anchor bolts for structural seismic strengthening of columns with wing wall
Author(s): Y. Yamamoto, Y. Hattori, T. Koh, M. Kato
Paper category : conference
Book title: International Symposium on Connections between Steel and Concrete
Editor(s): R. Eligehausen
Print-ISBN: 2-912143-25-X
e-ISBN: 2351580346
Publisher: RILEM Publications SARL
Publication year: 2001
Pages: 586 - 595
Total Pages: 10
Nb references: 7
Language: English

Abstract: An improved method of seismic strengthening of existing R/C buildings using reinforced exterior members has been developed. This method shortens the construction period and makes it possible to use the building while under construction. The method, called Concrete Member Included Plate (CMIP), has been used and it performed well with school buildings and public service buildings. The next aim is expanding its use with apartment buildings which wing walls and non-structural walls become integral parts of columns. The reinforced member must not obstruct any part of the building and must be thinner and lighter than other presented methods. Thus anchor bolts shallowly embedded are used to connect existing R/C member to the reinforced member. This paper presents mechanical behavior and transmits shear load capacity of adhesive post-installed anchor bolts embedded in thin R/C wall. The pilot tests for these anchors are reported and the shear capacity and the failure mechanism described. And furthermore, a new style of anchor bolt is proposed for the thin R/C wall.

Online publication: 2009-12-31
Publication type : full_text
Public price (Euros): 0.00