A Fundamental Study on the SPH Method Application for Impact Response of RC Structural Members

2009 ◽  
Author(s):  
J. Fukazawa ◽  
Y. Sonoda
Keyword(s):  
Impact Response ◽  
Structural Members ◽  
Sph Method ◽  
Fundamental Study

scholarly journals An Analytical Study on the Pull-Out Strength of Anchor Bolts Embedded in Concrete Members by SPH Method

2021 ◽  
Vol 11 (18) ◽  
pp. 8526
Author(s):  
Chi Lu ◽  
Yoshimi Sonoda
Keyword(s):  
Load Capacity ◽  
Seismic Retrofitting ◽  
Embedment Depth ◽  
Structural Members ◽  
Sph Method ◽  
Anchor Bolt ◽  
Failure Patterns ◽  
Pull Out ◽  
Anchor Bolts ◽  
Pull Out Strength

As an important method for connecting structural members, anchor bolts have been installed in many situations. Therefore, accurate evaluation of the pull-out strength of anchor bolts has always been an important issue, considering the complicated actual installation conditions and the problem of aging deterioration of the structural members. In general, the patterns of pull-out failure of anchor bolts can be classified into three types: adhesion failure, cone failure, and bolt break. However, it sometimes shows a mixed fracture pattern, and it is not always easy to predict the accurate pull-out strength. In this study, we attempted to evaluate the pull-out strength of anchor bolts under various installation conditions using SPH, which can analyze the crack growth process in the concrete. In particular, the anchor bolt-concrete interface model was introduced to SPH analysis in order to consider the bond failure, and it was confirmed that various failure patterns and the load capacity could be predicted by proposed SPH method. After that, the influence of several parameters, such as bond stress limit, anchor bolt diameter, and the anchor bolt embedment depth on the failure patterns and the load capacity, were investigated by numerical calculation. Furthermore, several useful suggestions on the pull-out strength of anchor bolts under improper installation conditions, such as the ends of members for the purpose of seismic retrofitting, are presented.

Fundamental study on SPH method (2^ report)

2003 ◽  
Vol 2003.16 (0) ◽  
pp. 965-966
Author(s):  
Jun SUEMURA ◽  
Haruki OBARA ◽  
Masatoshi HATANO
Keyword(s):  
Sph Method ◽  
Fundamental Study

914 Fundamental study on SPH method : 5^ report

2005 ◽  
Vol 2005.18 (0) ◽  
pp. 575-576
Author(s):  
Mariko HONDA ◽  
Haruki OBARA ◽  
Akinori KOYAMA ◽  
Msatoshi HATANO
Keyword(s):  
Sph Method ◽  
Fundamental Study

scholarly journals Fundamental study on SPH method : 4^ report

2004 ◽  
Vol 2004.17 (0) ◽  
pp. 601-602
Author(s):  
Mariko HONDA ◽  
Haruki OBARA ◽  
Jun SUEMURA ◽  
Masatoshi HATANO
Keyword(s):  
Sph Method ◽  
Fundamental Study

A Fundamental Study on the Shock Cushioning Characteristics of a Novel pin-Fixed Aseismatic Connector for Bridges

2014 ◽  
Vol 566 ◽  
pp. 637-642
Author(s):  
Yoichi Yuki ◽  
Hiroki Tamai ◽  
Naoki Wada ◽  
Yoshimi Sonoda ◽  
Toshihiro Kasugai
Keyword(s):  
Evaluation Method ◽  
Impact Load ◽  
Impact Response ◽  
Response Analysis ◽  
The Novel ◽  
Fundamental Study ◽  
Rubber Material ◽  
Temperature Changes ◽  
Live Loads ◽  
Load Tests

This paper presents a novel pin-fixed aseismatic connector for bridges. A feature of this device is that the anchorage areas of both ends are connected with hinges; thus, there are no restrictions with respect to their mounting angles. Additionally, the PC cable of this device is given an appropriate amount of sag; thus, within the range of the sag the structure is capable of absorbing the amount of displacement because of temperature changes and live loads. In addition, this device has a certain shock-cushioning effect because of the rubber material surrounding the hinge pins. However, there is no quantitative evaluation method on the shock-cushioning effect of this device. Therefore, in this study, the shock-cushioning effect of the novel pin-fixed aseismatic connector for bridges is investigated using impact load tests and numerical analysis. It is found that the shock-cushioning effect of this device is almost equal to similar aseismatic connectors. Furthermore, it is also confirmed that their effects can be quantitatively evaluated using impact response analysis.

scholarly journals Fundamental Study of SPH Method (1st Report, Treatment of 2 Phase Flow)

2006 ◽  
Vol 72 (723) ◽  
pp. 2666-2671 ◽  
Author(s):  
Haruki OBARA ◽  
Jyun SUEMURA ◽  
Marika HONDA
Keyword(s):  
Phase Flow ◽  
Sph Method ◽  
Fundamental Study
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