Results 21 to 30 of about 27,107 (255)

Critical Response of Single-Degree-of-Freedom Damped Bilinear Hysteretic System under Double Impulse As Substitute for Near-Fault Ground Motion

Frontiers in Built Environment, 2018
A double impulse input is used as a substitute for near-fault earthquake ground motions. An explicit expression is derived on the maximum elastic–plastic response of a single-degree-of-freedom damped structure with bilinear hysteresis under the “critical
Hiroki Akehashi, Kotaro Kojima, Izuru Takewaki   +2 more
doaj   +1 more source

Critical earthquake response of elastic-plastic structures under near-fault ground motions (Part 1: Fling-step input)

Frontiers in Built Environment, 2015
The double impulse input is introduced as a substitute of the fling-step near-fault ground motion and a closed-form solution of the elastic-plastic response of a structure by the ‘critical double impulse input’ is derived.
Kotaro eKojima, Izuru eTakewaki
doaj   +1 more source

Robustness Evaluation of Elastoplastic Base-Isolated High-Rise Buildings Subjected to Critical Double Impulse

Frontiers in Built Environment, 2017
A new method of robustness evaluation is proposed for an elastoplastic base-isolated high-rise building considering simultaneous uncertainties of structural parameters.
Kohei Fujita, Keisuke Yasuda, Yoshihiro Kanno, Izuru Takewaki   +3 more
doaj   +1 more source

Explicit Overturning Limit of Rigid Block Using Triple and Pseudo-Triple Impulses Under Critical Near-Fault Ground Motions

Frontiers in Built Environment, 2021
An explicit limit for the overturning of a rigid block is derived on the input level of the triple impulse and the pseudo-triple impulse as a modified version of the triple impulse that are a substitute of a near-fault forward-directivity ground motion ...
Sae Homma, Kunihiko Nabeshima, Izuru Takewaki   +2 more
doaj   +1 more source

Hysteretic-Viscous Hybrid Damper System With Stopper Mechanism for Tall Buildings Under Earthquake Ground Motions of Extremely Large Amplitude

Frontiers in Built Environment, 2020
This paper is aimed at proposing a hysteretic-viscous hybrid (HVH) damper system for tall buildings subjected to long-period pulse-type earthquake ground motions of extremely large amplitudes. The HVH system was introduced for a single-degree-of-freedom (
Shoki Hashizume, Izuru Takewaki
doaj   +1 more source

Robustness analysis of elastoplastic structure subjected to double impulse [PDF]

Journal of Sound and Vibration, 2016
Abstract The double impulse has extensively been used to evaluate the critical response of an elastoplastic structure against a pulse-type input, including near-fault earthquake ground motions. In this paper, we propose a robustness assessment method for elastoplastic single-degree-of-freedom structures subjected to the double impulse input ...
Yoshihiro Kanno, Izuru Takewaki
openaire   +1 more source

Closed-form critical earthquake response of elastic-plastic structures on compliant ground under near-fault ground motions

Frontiers in Built Environment, 2016
The double impulse is introduced as a substitute of the fling-step near-fault ground motion. A closed-form solution of the elastic-plastic response of a structure on compliant (flexible) ground by the ‘critical double impulse’ is derived for the first ...
Kotaro eKojima, Izuru eTakewaki
doaj   +1 more source

Closed-form overturning limit of rigid block under critical near-fault ground motions

Frontiers in Built Environment, 2016
A closed-form limit on the input level of the double impulse as a substitute of a near-fault ground motion is derived for the overturning of a rigid block.
Kunihiko eNabeshima, Ryo eTaniguchi, Kotaro eKojima, Izuru eTakewaki   +3 more
doaj   +1 more source

Childhood Acute Lymphoblastic Leukemia Survival in Western Kenya: Reduction in Early Deaths and Treatment Abandonment

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background An earlier study on children diagnosed with acute lymphoblastic leukemia (ALL) at Moi Teaching and Referral Hospital (MTRH) in Kenya reported a low event‐free survival (EFS), excess treatment abandonment, and high induction mortality.
Gilbert Olbara, George Bogonko, Festus Njuguna, Sandra Langat, Martha Kipngetich, Dennis Njenga, Gertjan Johannes Kaspers, Terry Allen Vik   +7 more
wiley   +1 more source

Optimal Viscous Damper Placement for Elastic-Plastic MDOF Structures Under Critical Double Impulse

Frontiers in Built Environment, 2019
A new method for optimal viscous damper placement is proposed for elastic-plastic multi-degree-of-freedom (MDOF) structures subjected to the critical double impulse as a representative of near-fault ground motions.
Hiroki Akehashi, Izuru Takewaki
doaj   +1 more source