Damped free motion of rocking specimens in non-linear time history response analysis

In dynamic soil-structure interaction (SSI), the structure such as a building, the sway of the foundation and the rocking on ground, during an earthquake, are usually analyzed without coupled system. In this paper, assuming a restoring force - displacement characteristics for rocking, while the structure and the sway on the assumption are rigid body, non - linear time history response analysis of rocking in the damped free motion of are carried out, with the comparison of the experimental values

Predominant periods of multi-degree-of-freedomsystem analysis and dynamic soil-structure interaction for building structures

Coupled problems of the multi-degree-of-freedom-system (MDOF) or SoilStructure Interaction (SSI) are usually translated to a series of the single-degree-of-freedom (SDOF) equations. In this paper, the predominant periods of MDOF analysis are analyzed without SDOF and the dynamic amplification factors for a sample data of a model building are shown. The analysis method is the assumption that, as well as SDOF analysis, the MDOF analysis is applied to the predominant periods by inelastic analysis. That can give the dynamic amplification factors of the MDOF. At the results, it is cleared that the predominant period of the MDOF is close to be the period by the eigenvalues and in the short period or in the high level modes, the dynamic amplification factors are high which should not be neglected. Moreover, soil-structure interaction with SDOF are also analyzed by elastic analysis for the model building. Some effects to the building structure model by the rocking on the ground are discussed in the sway-rocking models

The Japanese Clinical Practice Guidelines for Management of Sepsis and Septic Shock 2016 (J-SSCG 2016)

Background and purposeThe Japanese Clinical Practice Guidelines for Management of Sepsis and Septic Shock 2016 (J-SSCG 2016), a Japanese-specific set of clinical practice guidelines for sepsis and septic shock created jointly by the Japanese Society of Intensive Care Medicine and the Japanese Association for Acute Medicine, was first released in February 2017 and published in the Journal of JSICM, [2017; Volume 24 (supplement 2)] https://doi.org/10.3918/jsicm.24S0001 and Journal of Japanese Association for Acute Medicine [2017; Volume 28, (supplement 1)] http://onlinelibrary.wiley.com/doi/10.1002/jja2.2017.28.issue-S1/issuetoc.This abridged English edition of the J-SSCG 2016 was produced with permission from the Japanese Association of Acute Medicine and the Japanese Society for Intensive Care Medicine.MethodsMembers of the Japanese Society of Intensive Care Medicine and the Japanese Association for Acute Medicine were selected and organized into 19 committee members and 52 working group members. The guidelines were prepared in accordance with the Medical Information Network Distribution Service (Minds) creation procedures. The Academic Guidelines Promotion Team was organized to oversee and provide academic support to the respective activities allocated to each Guideline Creation Team. To improve quality assurance and workflow transparency, a mutual peer review system was established, and discussions within each team were open to the public. Public comments were collected once after the initial formulation of a clinical question (CQ) and twice during the review of the final draft. Recommendations were determined to have been adopted after obtaining support from a two-thirds (> 66.6%) majority vote of each of the 19 committee members.ResultsA total of 87 CQs were selected among 19 clinical areas, including pediatric topics and several other important areas not covered in the first edition of the Japanese guidelines (J-SSCG 2012). The approval rate obtained through committee voting, in addition to ratings of the strengths of the recommendation, and its supporting evidence were also added to each recommendation statement. We conducted meta-analyses for 29 CQs. Thirty-seven CQs contained recommendations in the form of an expert consensus due to insufficient evidence. No recommendations were provided for five CQs.ConclusionsBased on the evidence gathered, we were able to formulate Japanese-specific clinical practice guidelines that are tailored to the Japanese context in a highly transparent manner. These guidelines can easily be used not only by specialists, but also by non-specialists, general clinicians, nurses, pharmacists, clinical engineers, and other healthcare professionals

Damped free motion of rocking specimens in non-linear time history response analysis

In dynamic soil-structure interaction (SSI), the structure such as a building, the sway of the foundation and the rocking on ground, during an earthquake, are usually analyzed without coupled system. In this paper, assuming a restoring force - displacement characteristics for rocking, while the structure and the sway on the assumption are rigid body, non - linear time history response analysis of rocking in the damped free motion of are carried out, with the comparison of the experimental values