Shigekatsu KIMURA
Seismic response analysis on exiting foundation reinforced by steel pipe sheet piles
Satoru Otsuka
Construction expanded basic steel pile, insert a steel pipe around the base of existing, can be integrated with the caisson foundation existing to Placing version top on in combination with deadlines temporary area resistance of the vertical and horizontal Increase the stiffness, the horizontal displacement of basic, how to control the rotation. However, such a design challenges is not clear new approach to load distribution based on the existing foundation, however, have a unified design methodology does not exist.This study is to overcome the challenges in the design of steel pile foundation construction expansion, aims to establish a rational and economical design criteria.
ĦĦSteel sheet-pile foundation construction expansion, coupled with the top version of the caisson foundation and steel pipe is a structure that can be reinforced by effective force is transmitted directly to the steel pile. In the basic level Makoto Hiroshi version and the top caissons, the bonded structure underlying steel pile version of the top or, without the need for a bond structure rigid as before always, even in combination structure simple as to transmit only the horizontal force reinforcing effect may be obtained enough. Not provided with sufficient reinforcing effect is not obtained and the top version. Which strongly inhibited the effect of the presence of ground outside the base steel pipe.
ĦĦSuggested using a diagram called a nomogram initial selection and rational design methods of economic expansion based steel pile construction.It is designed to allow only be reinforced as necessary to the required tolerance level.Said that generally conform to previous findings our study results.
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