國立成功大學「邁向頂尖大學計畫」
延攬優秀人才工作報告表
NCKU’s “Aim for the Top University Project”
Work Report Form for Distinguished Scholars
□續聘 continuation of employment ■ 離職 resignation
100 年 7 月 13 日更新
受聘者姓名
Name of the Employee
小松幸平 ■男 女
Male Female
聘 期
Period of Employmentfrom 2013 年(y)8 月(m) 1 日(d)
to 2014 年(y) 7 月(m) 31 日(d)
研究或教學或科技研發與
管理計畫名稱
The project title of research,teaching, technology development and management
提升規劃設計教學研究能力計畫
計畫主持人
（申請單位主管）
Project Investigator (Head of Department/Center)
補助延聘編號
Grant Number
HUA 102-21T-5-238
一、 研究、教學、科技研發與管理工作全程經過概述。 （由受聘人填寫）
Please summarize the entire research, teaching, or science and technology R&D and management work process (To be completed by the employee)
1.Lectures
I had two lectures during my stay in NCKU, namely at semester 1 in 2013 (Taiwan year 102), I had TIMBER STRUCTURES &
FUNCTIONS (1) and at semester 2 in 2014 (Taiwan year 103), I had TIMBER STRUCTURES & FUNCTIONS (2).
The first lecture was mainly focused on general introduction of timber structures starting from ancient dowelling house till modern glulam timber buildings and timber bridges. The second lecture was a kind of advanced course in which details of wooden materials, mechanism of various timber joints, establishments of mechanical models of structural components composed of timber structures and fundamental structural calculation and design calculation methods of various timber structures were given.
Every lecture notes with about 10 to 20 pages were written in English originally at each lecture and they were distributed to all attendees before lectures thorough my FTP server. I had 15 attendees from both Department of Architecture (13) and Civil Engineering (2) in the semester 1 and 13 attendees from both Department of Architecture (10) and Civil Engineering (3) in the semester 2. In both lectures, assessments of students were done by oral presentation and submission of hand-out of their presentations files.
In consequent, I believe that most attendees enjoyed my lectures given in English anyhow and they became aware of importance of timber structures more in this society.
2. Research
Figure 2 Two storey glulam portal frame specimen with additional weights and measuring devices.
In order to make sure the actual dynamic performance of glulam semi-rigid portal frames, which have been developed and evaluated by static procedures in past few years, I planned and executed a partial full-scale shaking table experiment by accepting a
1
special courtesy of National Center for Research on Earthquake Engineering (NCREE) and by accepting full support from Professor Min-Fu Hsu laboratory.
Two storey glulam portal frame specimen having 4m by 1.5m plane and 6m height was designed as shown in Figure 2 for shaking table experiment on the basis of performance obtained by previous static experiments1),2),3). Loads which should be added on each storey were estimated as 2080kgf for 1st storey and 1560kgf for 2nd storey, respectively. Two storey glulam portal frame was constituted of all the same structural glulam members having 150mm by 450mm cross section made of Japanese cedar. All structural elements including steel joints were preliminary fabricated in a factory located at Kyushu in Japan then shipped to Keelung and finally transported to Taipei where shaking table test was done in NCREE. Built up jobs of test specimen at NCREE were done by a team constituting a professional carpenter and one technical staff from glulam company with a few amateur university’s peoples. Photos 1 show details of each parts of test specimen. Photo 2 shows whole view of completed test specimen.
a) Column-leg joint b) Column-beam joint at 1st storey c) Column-beam joint at 2nd storey
d) Brace joint e) Measuring devices for storey drift f) Lead weights on the 1st storey Photo 1 Details of each part of two storey glulam portal frame test specimen.
In the shaking table test, two different observed earthquake records were used. First wave used was the Chi-Chi EW record (PGA= 989.18 cm/sec2) which was observed at Sun Moon Lake Meteorological Observatory (Site Code: TCU084) on 21th September in 1999 and we defined its record as 921 Chi-Chi-TCU84-EW. The second wave used was JMA-Kobe NS component (PGA=818.0cm/sec2) that was observed at former Kobe Marine Meteorological Observatory on 17th January in 1995 when 1995 Hyogoken Nanbu earthquake occurred. In both series of shaking table tests, observed earthquake waves were input from 20%, 40%, 60%, 80%, 100% and 150% of their full amplitude. In case of 150% input, lower frequency components than 0.6Hz were filtered due to the capacity of shaking table maximum traversing distance. Before and after the each shaking table test using observed earthquake waves, white noise wave of 60gal was input to identify the specimen’s dynamic property.
Figures 3-a) and b) show interlayer force-storey drift relationships of the test specimen subjected to two earth quake observed records. Figure 4-a) and b) show moment-rotation relationships of left-hand side column-leg joint (mean value) subjected to two earth quake observed records. In both cases, JMA- Kobe gave larger responses to the specimen. This was thought partly to be affected by the fact that the eminent natural period in JMA-Kobe NS component (T=0.34sec.) was closer to that of the test specimen (T=0.296 sec) so that a little bit larger resonance was thought to be occurred in case of JMA-Kobe NS component than the case of 921Chi-Chi-TCU084 EW component (T≒0.9sec).
From the shaking table tests conducted at NCREE, it was clear that the glulam portal frame constituted of relatively low grade glulam members could sustain without any fatal damages in glulam parts even if it was subjected to 150% amplitude of acceleration waves recorded in the past devastating earth quakes happened at both Taiwan and Japan.
3. References
1) Kohei Komatsu and Shoichi Nakashima: Development of much stiffer and rich ductile glulam portal frame which can be easily repaired and restored after being attacked by devastating earthquakes. (1) Development of joint method and static evaluation of the performance, Summary of Technical Papers of Annual Meeting of AIJ, Toukai, Structure -3, 531–532, 2012. (in Japanese)
2) Kohei Komatsu, Shoichi Nakashima and Akihisa Kitamori : Development of Ductile Moment-Resisting Joint Based on a New Idea for Glulam Portal Frame Structures, Proceedings of WCTE2012, Session 19, Connections 7,pp.156-161, Auckland, N.Z., 2012.
2
Photo 2 Completed glulam two storey portal frame specimen on the shaking table in NCREE.3) Kohei Komatsu, Takuro Mori, Akihisa Kitamori, Yasuhiro Araki: Evaluation on Dynamic Performance of Glulam Frame Structure Composed of Slotted Bolted Connection System.
a) 921Chi-Chi-TCU084-150%(0.6Hz filtered) b)JMA-Kobe-NS150%(0.6Hz filtered) Figure 3 Interlayer force-storey drift relationships of the test specimen
a) 921Chi-Chi-TCU084-150% (0.6Hz filtered) b)JMA-Kobe-NS150%(0.6Hz filtered) Figure 4 Moment-rotation relationships at column-leg joints of the test specimen
二、 研究或教學或科技研發與管理成效評估（ 由計畫主持人或單位主管填寫 ）
Please evaluate the performance of research, teaching or science and technology R&D and management Work: ( To be completed by Project Investigator or Head of Department/Center)
(1)是否達到延攬預期目標？
Has the expected goal of recruitment been achieved?
Yes, the expected goal of recruitment has been achieved successfully.
(2)研究或教學或科技研發與管理的方法、專業知識及進度如何？
What are the methods, professional knowledge, and progress of the research, teaching, or R&D and management work?
Professor Komatsu is well-versed in the field of timber engineering and has been teaching related courses in Kyoto University for more than 15 years. He is systematic in his teaching approach as he is aware that most domestic and international students might not have much knowledge on the timber structures and its historical development. Although Prof. Komatsu does not have any formal training in historical research, but during his term in NCKU, he put in extra effort to cover as much historical development of ancient Japanese structure and glulam structure so as to let the students have a fundamental understanding in the development from the Japanese perspective. Despite all these additional works, he always delivers his English lecture notes on-time for students to download before his lecture.
(3)受延攬人之研究或教學或科技研發與管理成果對該計畫(或貴單位)助益如何？
How have the research, teaching, or R&D and management results of the employed person given benefit to the project (or your unit)?
Given his accumulated works in timber engineering research and international collaborations, his in-depth knowledge is unparalleled. By introducing timber engineering from a global perspective and at the same time, cross-referenced his research and other collaborators’ works during lectures, Prof. Komatsu helps to widen the students’ perspective in this field further, giving them more inspiration and higher confidence to the possibility of designing timber buildings in future.
(4)受延攬人於補助期間對貴單位或國內相關學術科技領域助益如何？
How has the employed person, during his or her term of employment, benefited your unit or the relevant domestic academic field?
3
Prof. Komatsu tends to approach the subject in a more practical-oriented way. This is particularly important for students coming from Architecture and Civil engineering background who have an interest in designing and building timber structures. Knowing most of the commercially available guide books usually provide very few working examples on the theoretical and practical calculation methods, he understands that most readers will have difficulty in understanding the content and applying those calculation methods correctly in their design or evaluation. Hence in his lectures, he will always provide real-time working examples and guide the students step-by-step on how he derived to the final conclusion. In this way, students tend to get into the picture faster and understand better during the course.
(5)具體工作績效或研究或教學或科技研發與管理成果：
Please describe the specific work performance, or the results of research, teaching, or R&D and management work:
During his teaching term in NCKU, Prof. Komatsu has produced for the Department two textbook guides for course modules Timber and Structure Functions I & II. Apart from his teaching responsibility, Prof. Komatsu also juggles very well with the R&D and time management aspects during his stay in NCKU. Knowing that the National Center for Research on Earthquake Engineering (NCREE) has a 5x5m shaking table facility, he continues with his glulam portal frame research in Taiwan by arranging another larger scale shaking table experiment at NCREE during the winter vacation (early February 2014). With the help of my two PhD students and laboratory resources, his shaking table experiment was executed successfully. Following that, Prof. Komatsu also attended the Japan Wood Research Society (JWRS) annual meeting in March 2014 and presented his research in the Meeting held at Matsuyama, Japan. His attendance of the Annual Meeting during term period did not affect his teaching schedule as he has already made arrangements with his students right from the start of the second semester, hence the lecture sequence were not disrupted.
(6) 是否續聘受聘人?
Will you continue hiring the employed person?□續聘 Yes ■不續聘 No
As Prof. Komatsu has some other private projects that require him to be present in Japan from August 2014 onwards, hence we did not choose to continue with the employment.
