目
次
1.
竜
巻災害の低減に向けて
植松 康
日
本風工学会誌,第39巻第2号(通号第139号),pp.117-118,2014.4
For the Tornado Disaster Reduction
Yasushi UEMATSU
Wind
Engineering, JAWE, Vol.39, No.2 (No.139), pp. 117-118, 2014.4
2.
Design
wind force coefficients
for open-topped oil storage tanks focusing on the
wind-induced buckling
Yasushi Uematsu, Choongmo Koo, Jumpei Yasunaga
Journal of Wind Engineering and Industrial
Aerodynamics,
130(2014) pp. 16-29,
2014.4
abstract:Wind force coefficients
for designing open-topped oil storage tanks have been
investigated both experimentally and analytically.
First, simultaneous pressure measurements were
carried out at many points both on the outside and inside of
the wall of a rigid model in a turbulent boundary layer. A conditional sampling of pressures was made for
investigating the pressure distribution at an instant when the
external pressure at a reference point, roughly
corresponding to the windward stagnation point, became the
maximum peak value. The
instantaneous distribution of wind force coefficients, or the pressure difference coefficients
at this moment was found to be similar to that of the mean
wind force coefficients. Then,
the buckling behavior of thin cylindrical shells was
investigated based on a wind tunnel experiment with elastic
cylinders. Furthermore,
a finite element analysis of the buckling behavior
under static wind loading was carried out.
The results indicate that the buckling behavior is
mainly affected by the magnitude and extent of positive wind
force coefficient on the windward area of the cylinder. Finally, a
discussion is made of the wind force coefficients to be used for the design of open-topped
oil storage tanks, based on the above-mentioned wind tunnel
experiments and finite
element analysis.
3.
LES
of unsteady aerodynamic forces on a long-span curved roof
Wei Ding, Mana Nakamura, Yasushi Uematsu
CWE2014, 6th International Symposium
on Computational Wind Engineering, Hamburg, Germany, 8-12
June. 2014
abstract:The present paper
discusses the characteristics of unsteady aerodynamic forces
on a long-span curved roof by using LES (Large Eddy Simulation). A forced vibration test in a turbulent boundary layer is simulated to investigate the influences
of roof’s
vibration on the wind pressure and flow field. It is found
that the LES can be used
effectively to evaluate the unsteady aerodynamic forces on a vibrating roof in a
wider range of reduced frequency of vibration compared with the
wind tunnel experiment.
4.
宮
城県における鉄骨 造屋内運動場の耐震診断事例に関する調査研究
今
野大輔,植松康
日
本建築学会東北支部研究報告集構造系第77号,pp.79-82,2014.6
Study on seismic evaluation and retrofiting of
steel gymnasiums in Miyagi prefecture
Daisuke KONNO, Yasushi
UEMATSU
Proceedings of AIJ
Tohoku Chapter Architectural Research Meeting, Vol.77, pp.79-82, 2014.6
5.
Local wind pressures acting on walls of
low-rise buildings and comparisons to the Japanese and US
wind loading provisions
Eri Gavanski, Yasushi Uematsu
Journal of Wind Engineering and Industrial
Aerodynamics, 132(2014), pp.77-91, 2014.7
abstract:This
paper examines peak external wind pressures acting on walls of
low-rise buildings using various parameters.
Results indicate that positive pressure distribution
is relatively uniform regardless of parameters considered and
its magnitude decreases as averaging area size becomes larger. Large suction
pressure distribution occurs at lateral edges of walls and its
magnitude does not average out with increasing averaging area
size as rapidly as for positive pressure.
Based on these observations, we find that zoning of wall area for design
purposes is only necessary for wall suction pressures.
We further find that it is more suitable to base zoning on
building height to some extent.
When the present results are compared with the design
values in the AIJ Recommendations for Loads and Buildings in
Japan, the design values significantly underestimate positive wall pressures for small
averaging areas, but the degree of underestimation diminishes
as area becomes larger. Similarly,
design values underestimate negative wall pressures up to an
area of 10 m2, but begin to overestimate past that
point. A similar
observation was made for a comparison with ASCE7-10; however,
the degree of overestimation of negative code values at larger
areas was smaller than the one observed in the comparison with
the AIJ Recommendations.
6.
連
棟配置されたオープントップオイルタンクの設計用風荷重
安永隼平,具忠謨,植松康
日
本風工学会論文集,第39巻第3号(通号第140号),pp.53-62,2014.7
Wind Loads for Designing Open-topped Oil-storage Tanks in
Various Arrangements
Jumpei Yasunaga, Choongmo KOO, Yasushi UEMATSU
Journal
of Wind Engineering, JAWE, Vol.39, No.3(No.140),
pp. 53-62, 2014.7
7.
一
般社団法人日本風工学会・会長就任にあたって
植
松康
日
本風工学会誌,第39巻第3号(通号第140号),pp.221-222,2014.7
Message from the New
President of JAWE
Yasushi UEMATSU
Wind Engineering, JAWE, Vol.39, No.3(No.140),
pp. 221-222, 2014.7
8.
Window glass design in light of weathering
effect
Eri
Gavanski, Daisuke Konno, Yasushi Uematsu
The
2014 World Congress on Advances in Civil, Environmental, and
Materials Research (ACEM14),
Busan, Korea, August 24-28, 2014
ABSTRACT:When
severe wind events occur, failure of window glass can be
observed quite frequently. Although the main cause of this
failure is believed to be wind-borne debris, failure due to
wind pressure is also relatively common and numerous studies
were performed on estimating window glass plate strength
under wind loading. With respect to the estimation of glass
strength, a proper determination of initial glass strength,
which is the strength before glass is loaded, is important
and the weathering effect is known to affect the initial
glass strength. Regardless
its importance, few studies have previously been conducted
on the weathering effect because a large number of
in-service glass plates necessary to obtain statistically
significant results can seldom be obtained in practice.
However, due to the Great East Japan Earthquake, some
buildings in the Faculty of Engineering, Tohoku University
were severely damaged and a decision was made that they
should be demolished and rebuilt. This allowed us to obtain
a large number of in-service window glass plates from one of
the buildings before it was demolished.
A coaxial double ring test was performed both on
in-service glass plates from the destroyed building and on
new plates. Thereby, the reduction of glass strength due to
weathering effect was evaluated. By treating the obtained
breakage strength as initial glass strength, glass strength
was calculated by performing glass strength modeling, which
considered the unique characteristic of glass plates (i.e.,
static fatigue). Finally,
a fragility analysis was performed using the obtained wind
load resistance in order to observe the weathering effect on
wind speeds in design situations.
9.
Evaluation of the strength of
elastically-supported glass plates forwind-resistance design
of windows
Daisuke Konno, Eri Gavanski, Yasushi Uematsu
The 2014 World Congress on Advances in Civil,
Environmental, and Materials Research (ACEM14),
Busan, Korea, August 24-28, 2014
ABSTRACT:Strength and failure characteristics of
elastically-supported glass plates are examined by performing
full-scale breakage tests and numerical simulation which can
predict glass failure pressure. In full-scale breakage tests,
three types of wind loading were applied to the specimens,
including dynamic loading created based on wind tunnel
measurement, up to plate failure. The results are consistent
with the assumption that the damage accumulation of glass is
independent of loading patterns. In addition, the numerical
simulation, which was originally developed for
simply-supported glass plates, was modified so that it can be
applicable to glass plates elastically supported. The effects
of several input parameters for the numerical simulation on
the calculate failure pressure were investigated in order to
choose the best combination of these parameters for closely
replicating the full-scale breakage test results.
10.
Design wind loads for open-type framed membrane
structures
Yuki Takadate, Eri Gavanski, Yasushi Uematsu
The 2014 World Congress on Advances in Civil,
Environmental, and Materials Research (ACEM14),
Busan, Korea, August 24-28, 2014
ABSTRACT:Wind
force coefficients for designing open-type framed membrane
structuresareproposed based on a wind tunnel experiment. Two
cases of gable-wall opening are investigated; only one gable
wall is open in a case, while both gable walls are open in the
other case. For a comparative purpose, a closed-type model is
also tested. Wind pressures are measuredsimultaneously at many
points both on the external and internal surfaces of the model
in a turbulent boundary layer. For discussing the design wind
loads on the main wind force resisting systems, focus is on
the bending moment involved in the windward column as the load
effect. Furthermore, the peak wind force coefficients for
cladding designare specified based on the distributions of the
most critical positive and negative peak wind force
coefficients irrespective of wind direction.
11.様々
な地点における風観測データを用いたピークファクターの性状評価
〜
乱れの強さおよび観測高さとの関係〜
赤
星明紀,佐々木亮治,中村修,宮下康一,植松康
日本建築学会大会学術講演梗概集(近畿),構造T,pp.121-122,2014.9
Evaluation of the peak
factor by using the wind observation data at various points.
〜The relation between the peak factor, the turbulence
intensity, and the height of the observation〜
Akinori AKAHOSHI, Ryoji SASAKI, Osamu NAKAMURA,
Koichi MIYASHITA, Yasushi UEMATSU
Summaries of Technical Papers of Annual Meeting
Architectural Institute of Japan, Structure I, pp.
121-122,
2014.9
12.地
表付近の風の性状と地表面粗度に関連する諸量の関係
そ
の3
観測高さがガストファクターに与える影響
佐々
木亮治,赤星明紀,中村修,宮下康一,植松 康
日本建築学会大会学術講演梗概集(近畿),構造T,pp.123-124,2014.9
Comparison of
characteristics of terrain roughness and ground surface wind
Part 3 Influence of
observation height on gust factor
Ryoji SASAKI, Akinori AKAHOSHI, Osamu NAKAMURA,
Koichi MIYASHITA, Yasushi UEMATSU
Summaries of Technical Papers of Annual Meeting
Architectural Institute of Japan, Structure I, pp.
123-124,
2014.9
13.竜
巻災害に対する行政の対応項目の整理
‐2012年
の竜巻に対するつくば市役所へのヒアリングを通じて‐
池内淳子,植松康,奥田泰雄
日本建築学会大会学術講演梗概集(近畿),構造T,pp.133-134,2014.9
The
measures
that local government needs tornado Disaster
-Interview
to Tsukuba
City officials for tornado on May 2012-
Junko IKEUCHI, Yasushi UEMATSU, Yasuo OKUDA
Summaries of Technical Papers of Annual Meeting
Architectural Institute of Japan, Structure I, pp.
133-134,
2014.9
14.ダ
ウンバーストによる建築物の風荷重に関する研究 その1
植松康,飯
田有未,ガ
ヴァンスキ江梨
日本建築学会大会学術講演梗概集(近畿),構造T,pp.171-172,2014.9
A study of downburst-induced wind loading on
buildings Part
1
Yasushi Uematsu, Yumi. Iida, Eri Gavanski
Summaries of Technical Papers of Annual Meeting
Architectural Institute of Japan, Structure I, pp.
171-172,
2014.9
15.ダ
ウンバーストによる建築物の風荷重に関する研究 その2
飯
田有未,植松康,
ガヴァンスキ江梨
日本建築学会大会学術講演梗概集(近畿),構造T,pp.173-174,2014.9
A study of downburst-induced wind loading on
buildings Part
2
Yumi. Iida, Yasushi Uematsu, Eri Gavanski
Summaries of Technical Papers of Annual Meeting
Architectural Institute of Japan, Structure I, pp.
173-174,
2014.9
16.膜構造独立上屋の設計用風力係数に関する研究
−
片流れおよびHP型
独立上屋の場合−
武田文義,吉野達矢,植松 康
日本建築学会大会学術講演梗概集(近畿),構造T,pp.185-186,2014.9
Discussion of design wind force coefficients for
free-standing canopy roofs of membrane structures
Fumiyoshi
TAKEDA, Tatsuya YOSHINO, Yasushi UEMATSU
Summaries of Technical Papers of Annual Meeting
Architectural Institute of Japan, Structure I, pp.185-186, 2014.9
17.妻
面開放型膜構造建築物の構造骨組用風荷重に関する研究
舘祐貴,植松康,ガヴァンスキ江梨
日本建築学会大会学術講演梗概集(近畿),構造T,pp.189-190,2014.9
Wind force coefficients for structural for frames of
open-type membrane structure
Yuki TAKADATE, Yasushi Uematsu, Eri Gavanski
Summaries of Technical Papers of Annual Meeting
Architectural Institute of Japan, Structure I, pp.
189-190,
2014.9
18.補
剛リングがオープントップオイルタンクの座屈性状に及ぼす影響に関する研究
山
口貴之,植松康
日本建築学会大会学術講演梗概集(近畿),構造T,pp.205-206,2014.9
Effect of the flexural
rigidity of the ring on the buckling behavior of the
open-topped oil-tank under wind
pressure
Takayuki YAMAGUCHI, Yasushi Uematsu
Summaries of
Technical Papers of Annual Meeting Architectural Institute of
Japan, Structure I, pp.
205-206,
2014.9
19.
弾
性支持された板ガラスの強度評価法に関する研究
今
野大輔,ガヴァンスキ江梨,植松 康
日本建築学会大会学術講演梗概集(近畿),構造T,pp.209-210,2014.9
Evaluation
of the strength of elastically supported glass plates
Daisuke KONNO, Eri GAVANSKI , Yasushi UEMATSU
Summaries of
Technical Papers of Annual Meeting Architectural Institute of
Japan, Structure I, pp.
209-210,
2014.9
20.低層建物の壁面に作
用する風圧特性
ガ
ヴァンスキ江梨,植松 康
日本建築学会大会学術講演梗概集(近畿),構造T,pp.211-212,2014.9
External wind pressures acting on walls of
low-rise buildings
Eri GAVANSKI , Yasushi UEMATSU
Summaries of
Technical Papers of Annual Meeting Architectural Institute of
Japan, Structure I, pp.
211-212,
2014.9
21.実変動風圧下におけ
る外壁システムの耐風性能評価法に関する研究
そ
の1PLA(Pressure Loading Actuator)
の基本性能
高
橋麻衣,星野菜紡,ガヴァンスキ江梨,植松康
日本建築学会大会学術講演梗概集(近畿),構造T,pp.239-240,2014.9
Evaluation of wind resistance of wall systems
under realistic wind loading
Part.1 Characteristics of pressure loading
actuator
Mai TAKAHASHI, Natsumi HOSHINO, Eri GAVANSKI , Yasushi UEMATSU
Summaries of
Technical Papers of Annual Meeting Architectural Institute of
Japan, Structure I, pp.
239-240,
2014.9
22.実変動風圧下におけ
る外壁システムの耐風性能評価法に関する研究
そ
の2 金属サイディングを用いた試験体による実大動風圧実験
星
野菜紡,高橋麻衣,ガヴァンスキ江梨,植松 康
日本建築学会大会学術講演梗概集(近畿),構造T,pp.241-242,2014.9
Evaluation of wind resistance of wall systems
under realistic wind loading
Part.1 Characteristics of pressure loading
actuator
Natsumi HOSHINO, Mai TAKAHASHI, Eri GAVANSKI , Yasushi UEMATSU
Summaries of
Technical Papers of Annual Meeting Architectural Institute of
Japan, Structure I, pp.
241-242,
2014.9
23.風
外力を受ける高層建物の外装材疲労損傷評価に関する研究
その3:気象観測
データに基づく50年間の疲労損傷評価
寺
崎 浩,植松 康
日本建築学会大会学術講演梗概集(近畿),構造T,pp.243-244,2014.9
Fatigue damage evaluation
of high-rise building cladding and components subjected to
dynamic wind Forces. Part
3 : Fatigue damage evaluation based on meteorological
observation data.
Hiroshi TERAZAKI, Yasushi UEMATSU
Summaries of
Technical Papers of Annual Meeting Architectural Institute of
Japan, Structure I, pp.
243-244,
2014.9
24.Wind-induced
scattering of permeable unit flooring decks loosely laid on
rooftop and balconies of high-rise buildings
Yasushi Uematsu, Yoshiki Shimizu,
Yoshimasa Miyake,
Yusuke Kanegae
7th International Symposium on Environmental
Effects on Buildings and People (EEBP7),
Crakow, Poland, October, 20-22, 2014
Abstract: The present paper discusses the
mechanism of wind-induced scattering of permeable unit
flooring decks loosely laid on the rooftop and balconies of
high-rise buildings. First, the scattering mechanism of decks
is investigated, based on a blowing test us-ing a blower and
actual decks. Then, a simulation model is constructed for
estimating the internal pressures under the decks (pressure
acting on the bottom surface of decks), based on the unsteady
Bernoulli equation and the time history of external pressures
on the rooftop and balconies, obtained from a wind tunnel
experiment. Combining the simulated internal pressures and the
experimentally obtained external pressures, the time history
of net wind forces acting on the decks is computed. The
threshold wind speed of scatter-ing (scattering wind speed) is
obtained by applying the scattering mechanism to the simulated
time history of the net wind forces.
25.
Design wind force coefficients for
free-standing canopy roofs of membrane structures
Fumiyoshi
Takeda,
Tatsuya Yoshino,
Yasushi Uematsu
7th International Symposium on Environmental
Effects on Buildings and People (EEBP7),
Crakow, Poland, October, 20-22, 2014
Abstract: The present study examines the wind-induced
behavior of free-standing membrane canopy roofs of various
types of roof-supporting systems and presents wind force
coefficients for designing such roofs. The effects of roof
deformation and roof-supporting system on the wind force
coefficients are investigated. The characteristics of
wind-induced responses of the roofs are tak-en into account
for improving the wind force coefficients that we previously
proposed based on the results of wind tunnel experiment with
rigid roof models.
26.
Relationship between Surface Roughness and
Turbulence of Natural Winds near the Ground Surface
Ryoji Sasaki, Akinori Akahosh, Yasushi
Uematsu
7th International Symposium on Environmental
Effects on Buildings and People (EEBP7),
Crakow, Poland, October, 20-22, 2014
Abstract: In the wind-resistant design of low-rise
buildings, it is important to evaluate the wind loads
accurately, both on the structural frames and on the
cladding/components. For this purpose, it is necessary to
understand the characteristics of natural winds near the
ground surface in detail. The present study develops a
quantitative estimation method for evaluating the turbulence
of winds near the ground surface on the basis of field
measurements at various points all over Japan. The
characteristics of surface roughness are evaluated on the
basis of several factors obtained from a building information
database. The relationship between these factors and the
turbulence of winds is discussed. The effect of observation
height above the ground surface on the turbulence is also
investigated.
27.Wind
Loading on a Hyperbolic Paraboloid Free Roof
Yasushi Uematsu, Yukari Miyamoto, Eri Gavansky
Journal of Civil Engineering and Architecture,
Volume 8, No. 10 (Serial No. 83), pp. 1233-1242, 2014.10
Abstract: Wind loading on an H.P. (hyperbolic
paraboloid) free roof has been investigated on the basis of a
wind tunnel experiment. The
roof models of 1 mm thickness were made of nylon resin using
laser lithography. The parameters under consideration are the
rise to span ratio and slope of the roof. The overall
aerodynamic forces and moments were measured by a
six-component force balance in a turbulent boundary layer. Based on a combination
of the lift and moment coefficients, the design wind force
coefficients, CNW * and CNL *, on the
windward and leeward halves of the roof are proposed. Focus is
on the column axial forces induced by wind loading as the load
effect for discussing the design wind loads, assuming that the
roof is rigid and supported by four corner columns. Indeed,
two pairs of CNW * and CNL *, generating the
maximum tension and compression in the columns, are provided
for each of the two or three wind directions parallel to the
roof’s diagonal lines. The proposed values of the wind force
coefficients are compared with the specified values in the
Australia/New-Zealand Standard for a limited range of rise to
span ratio.
28.
WIND LOADS AND WIND-INDUCED BUCKLING OF
OPEN-TOPPED OIL-STORAGE TANKS IN VARIOUS ARRANGEMENTS
Yasushi UEMATSU, Jumpei YASUNAGA, Choongmo KOO
Sustainable Solutions in Structural Engineering
and Construction, pp.333-338, 2014, 2014.10
Abstract: Wind force coefficients for designing open-topped
oil-storage tanks in various arrangements have been
investigated under experiments involving a wind tunnel and a
buckling analysis of the tanks. In the wind tunnel experiment,
the wind pressures were measured simultaneously at many points
both on the external and internal surfaces of a rigid model
for various arrangements of two to four tanks. The effects of
arrangement and gap spacing of tanks on the pressure
distribution are investigated. The buckling of tanks under
static wind loading is analyzed by using a non-linear finite
element method. A discussion of the effect of wind force
distribution on the buckling behavior follows. The authors
provided a model of circumferential distribution of wind force
coefficient on isolated open-topped tanks in their previous
paper. This paper proposes a model of wind-force coefficient
for plural tanks in various configurations by modifying the
model for isolated tanks.
29.竜
巻発生前後の時間経過に応じた被害低減策
‐2012年5月6日
つくば市で発生した竜巻災害を事例として‐
池内淳子,植松康,奥田泰雄
日
本風工学会論文集,第39巻第4号(通号第141号),pp.79-90,2014.10
Approach
to Tornado
Disaster Reduction in Consideration of Progress of the Time
before and after Tornado -Case Study of the May 6, 2012 Tsukuba
City Tornado Disaster -
Junko IKEUCHI, Yasushi UEMATSU, Yasuo OKUDA
Journal
of Wind Engineering, JAWE, Vol.39, No.4(No.141),
pp. 79-90, 2014.10
30.地上設置型太陽光発電システムの設計用風荷重
植
松康
太
陽エネルギー,Vol.40,No.6(通
巻224号),pp.29-37,2014.11
Wind loads for designing photovoltaic systems
placed on the ground
Yasushi UEMATSU
Journal of JSES, Vol.40, No.6(No.224),
pp.29-37, 2014.11
31.観
測高さがガストファクターと地表面粗度に関連する諸量の関係に及ぼす影響
佐々
木亮治,赤星明紀, 植松 康
第23回風工学シンポジウム論
文集,pp.13-18, 2014.12
INFLUENCE
OF OBSERVATION HEIGHT ON RELATIONSHIP BETWEEN GUST FACTOR
AND GROUND SURFACE ROUGHNESS
Ryoji SASAKI, Akinori AKAHOSHI Yasushi UEMATSU
The 23th National Symposium on Wind Engineering,
pp. 13-18, 2014.12
ABSTRACT: When considering the wind-resistant design of
low-rise buildings, it is important to evaluate the wind loads
accurately, both on the structural frames and on the
cladding/components of the buildings. For this purpose, it is
necessary to understand in detail the characteristics of
natural winds near the ground surface. In the present study, a
quantitative estimation method is developed to evaluate the
turbulence of winds near the ground surface on the basis of
field measurements at various points in urban areas. The
characteristics of surface roughness are evaluated on the
basis of several factors obtained from a building information
database, and the relationship between these factors and gust
factor is discussed. The effect of height on the turbulence is
also investigated.
32.
竜
巻災害に対して行政が対応すべき項目の整理と地域防災計画への反映
池
内淳子,植松康,奥田泰雄
第23回風工学シンポジウム論
文集,pp.193-198, 2014.12
APPROACH TO REFLECT TORNADO DISASTER
COUNTERMEASURES ON LOCAL DISASTER MANAGEMENT PLAN
Junko IKEUCHI, Yasushi UEMATSU, Yasuo OKUDA
The 23th National Symposium on Wind Engineering,
pp. 193-198, 2014.12
ABSTRACT: The purpose of this paper is to promote tornado
disaster countermeasures for local governments. The actions
that local governments have to take after a tornado disaster
are arranged. These results are based on the interview given
to the officials of the local government that received a
tornado disaster, and are classified into four categories
based on the disaster phases; that is, prevention, mitigation
and preparedness, emergency response, and recovery and
rehabilitation. Furthermore, the results are compared with the
tornado countermeasures specified in the Saga City Local
Disaster Management Plan. It is hoped to specify tornado
disaster countermeasures in the Local Disaster Management Plan
of the other local governments.
33.
低
層建物壁面に作用する外装材用風圧係数の検討
ガ
ヴァンスキ江梨,植松康
第23回風工学シンポジウム論
文集,pp.253-258, 2014.12
Characteristics
of local wind pressures acting on walls of low-rise
buildings
Eri GAVANSKI, Yasushi UEMATSU
The 23th National Symposium on Wind Engineering,
pp. 253-258, 2014.12
ABSTRACT:
The characteristics of peak external wind
pressures acting on walls of low-rise building were examined
by using wind tunnel test results performed on models with
various roof slopes and eave heights. On one hand, pressure
distribution of positive wind pressure is found to be
relatively uniform; and hence zoning seems unnecessary. On the
other hand, large suctions are observed at the lateral edges
of walls, which results in the necessity of zoning. Strong
non-Gaussian characteristics are found not only for negative
wind pressures but also for positive wind pressures and the
probability density does not necessarily become Gaussian when
aggregated loads are considered. Comparisons with the
specified values in the AIJ Recommendations for Loads and
Buildings in Japan were also performed.
34.妻
面開放型骨組膜構造建築物の構造骨組用風荷重に関する研究
舘祐貴,植
松康,ガ
ヴァンスキ江梨
第23回風工学シンポジウム論
文集,pp.259-264, 2014.12
WIND
FORCE COEFFICIENTS FOR DESIGNING FRAMED MEMBRANE STRUCTURES
OF OPEN TYPE
Yuki TAKADATE, Yasushi UEMATSU, Eri GAVANSKI
The 23th National Symposium on Wind Engineering,
pp. 259-264, 2014.12
ABSTRACT:
Wind force coefficients on semi-open type
structures are proposed on the basis of the result of a wind
tunnel experiment. Two types of gable-wall opening are
investigated; only one gable wall is open in a case, while
both gable walls are open in the other case. Closed-type model
is also tested for a comparative purpose. The wind pressures
are simultaneously measured at many points both on the
external and internal surfaces of the model in a turbulent
boundary layer. When discussing the wind force coefficients,
focus is on the bending moment at the windward knee of the
frame for the pinned-base frame and at the windward base for
the fixed-base frame. Based on the result for the most
critical condition, we propose the wind force coefficients for
the main wind force resisting systems by using the LRC method,
which can be used in the frame of conventional gust effect
factor approach.
35.数
値流体解析を用いた大スパン園芸用鉄骨ハウスの最適断面形状の提案
金
南昔,植松康
第23回風工学シンポジウム論
文集,pp.301-306, 2014.12
INVESTIGATION OF THE OPTIMUM CROSS-SECTION OF
GREENHOUSE WITH LONG SPAN BASED ON CFD
Namseok KIM, Yasushi UEMATSU
The 23th National Symposium on Wind Engineering,
pp. 301-306, 2014.12
ABSTRACT: In this study, we reproduced the results of the
wind tunnel experiments on a greenhouse with wing-like
cross-section (Uematsu 2004) by CFD. We examined the
appropriate analytical conditions for the boundary layer
turbulence and compared the results with the experimental
ones. From the comparison we confirmed the validity of the
analytical model. Based on the results of a parametric study
in which the heights of windward and leeward walls, curvature
of the roof etc. were changed over a wide range. We propose on
optimum cross section on of the wing-shaped greenhouse. This
cross-section reduces the drag force significantly compared
with the conventional ones.
36.通
気性のある屋上目隠しパネルに作用する外装材用風荷重の検討
相
原知子,植
松康
第23回風工学シンポジウム論
文集,pp.391-396, 2014.12
A STUDY OF WIND LOADS ON PERMEABLE PANELS
PLACED ALONG THE PERIMETER OF THE ROOFTOP OF A HIGH-RISE
BUILDING
Tomoko AIHARA, Yasushi UEMATSU
The 23th National Symposium on Wind Engineering,
pp. 391-396,
2014.12
ABSTRACT: Permeable materials such as louver and punching metal are
used as an outer skin attached to the outside of building
walls. However, the wind loads acting on such a permeable
material have not been clarified. In the present study, a wind
tunnel test is performed to investigate the wind loads on
permeable panels attached along the perimeter of the rooftop
of a high-rise building. The permeable outer skin is modeled
by a thin metal plate with rectangular holes.
The porosity and size of the openings are changed in
the test. The effects of those parameters on the wind loads
acting on the outer skin are understood through the test.
37.風
外力を受ける高層建物の外装材疲労損傷評価に関する検討
寺
崎 浩,植松 康
第23回風工学シンポジウム論
文集,pp.397-402, 2014.12
FATIGUE DAMAGE EVALUATION OF CLADDING AND
COMPONENTS OF HIGH-RISE BUILDINGS SUBJECTED TO DYNAMIC WIND
FORCES
Hiroshi TERAZAKI, Yasushi UEMATSU
The 23th National Symposium on Wind Engineering,
pp. 397-402,
2014.12
ABSTRACT: The cladding and components of high-rise
buildings are always exposed to dynamic wind forces. The wind
forces are characterized by a long duration compared with
seismic forces. For
example, during a strong typhoon, strong wind lasts for a
couple of hours. The structural frames of high-rise buildings
are usually designed so that the stresses involved in the
structural members are almost in the elastic range for the
design wind load with a return period of 500 years. On the
other hand, in many cases, the cladding and components are
designed based on the short-term allowable stress for the
design wind load with a return period of 50 years. Therefore,
they may be damaged by fatigue during the building’s lifetime. In the present
paper, the characteristics of fatigue accumulation in the
cladding and components of high-rise buildings are
investigated based on the results of a wind tunnel test and
the observation data about 50 years at 14 meteorological
observatories in Japan.
38.実
変動風圧下における金属サイディングを用いた外壁システムの耐風性能試験
橋麻衣,星
野菜紡,ガ
ヴァンスキ江梨,植
松康
第23回風工学シンポジウム論
文集,pp.403-408,
2014.12
EXPERIMENT
ON WIND RESISTANCE OF WALL SYSTEMS UNDER REALISTIC WIND
LOADING
Mai TAKAHASHI,
Natsumi HOSHINO, Eri GAVANSKI Yasushi UEMATSU
The 23th National Symposium on Wind Engineering,
pp. 403-408, 2014.12
ABSTRACT:
Wall systems of low-rise buildings have commonly
failed during extreme wind events, such as typhoons and
tornadoes. In order to understand the failure mechanism of
wall systems in detail, full-scale experiments have been
conducted using wall specimens with metal sidings assembled in
the same way as actual walls. Two types of loadings, i.e.,
step-up loading and realistic wind loading generated from wind
tunnel data, have been employed. The results indicate that
there is no significant difference in wall capacity obtained
from different loadings, although failure mode progressions of
the wall systems under different loading types exhibit a clear
difference.
39.オー
プントップオイルタンクの風による座屈性状に関する有限要素解析
−
ウィンドガーダーと風力分布の影響−
山
口貴之,安
永隼平,植
松 康
第23回風工学シンポジウム論
文集,pp.409-414,
2014.12
FINITE
ELEMENT ANALYSIS OF BUCKLING BEHAVIOR OF OPEN-TOPPED
OIL-STORAGE TANKS UNDER WIND LOADING
-
EFFECTS OF WIND GIRDER AND WIND FORCE DISTRIBUTION –
Takayuki YAMAGUCHI, Jumpei YASUNAGA, Yasushi
UEMATSU
The 23th National Symposium on Wind Engineering,
pp. 409-414, 2014.12
ABSTRACT:
The present paper investigates the buckling
behavior of open-topped oil-storage tanks based on a finite
element analysis. The distribution of wind force coefficients
on two or three tank models in various arrangements, together
with an isolated model, are measured in a wind tunnel. The
results on the mean wind force coefficients are used for the
buckling analysis. First,
the fundamental characteristics of buckling behavior are
discussed with isolated models. Then, the effects of flexural
rigidity of wind girder at the top of the tank on the buckling
load and mode of tank shells are investigated. Finally, the
effect of wind force distribution on the buckling load is
discussed. The results indicate that the distribution of
positive wind force coefficients in the windward area affects
the buckling behavior significantly.
The buckling load decreases significantly for some
arrangements.
40.Advances in
Wind-resistant Design and Wind Resistance Evaluation in
Japan
Yasushi UEMATSU
Steel Construction Today & Tomorrow,
No.43, pp.1-2, 2014.12
41.Unsteady
aerodynamic forces on a vibrating long-span curved roof
Wei Ding, Yasushi Uematsu, Mana Nakamura, Satoshi
Tanaka
Wind and Structures, Vol. 19, No. 6, pp.649-663, 2014.12
Abstract: The present paper discusses the characteristics
of unsteady aerodynamic forces on long-span curved roofs. A
forced vibration test is carried out in a wind tunnel to
investigate the effects of wind speed, vibration amplitude,
reduced frequency of vibration and rise/span ratio of the roof
on the unsteady aerodynamic forces. Because the range of
parameters tested in the wind tunnel experiment is limited, a
CFD simulation is also made for evaluating the characteristics
of unsteady aerodynamic forces on the vibrating roof over a
wider range of parameters. Special attention is paid to the
effect of reduced frequency of vibration.
Based on the results of the wind tunnel experiment
and CFD simulation, the influence of the unsteady aerodynamic
forces on the dynamic response of a full-scale long-span
curved roof is investigated on the basis of the spectral
analysis.
42.書評 新版 雪氷辞
典 公益社団法人 日本雪氷学会編(古今書院)
植
松康
日
本雪工学会誌,第31巻,
第1号,pp.30-31,2015.1
43.風洞実験による風環
境評価の精度に関する研究
−
樹木の防風効果と基準点の風向変動が及ぼす影響‐
藤
元栄行,猿川明,宮下康一,中村修,植松康
日
本風工学会論文集,第40巻
第1号(通
号第142号),pp.1-7,2015.1
Study on the Accuracy of
Wind Environmental Assessment by Wind Tunnel Experiments
-Effects of windbreak of trees and wind
direction fluctuation at the reference point on the
estimated results-
Hideyuki FUJIMOTO,
Akira SARUKAWA, Koichi MIYASHITA, Osamu NAKAMURA,
Yasushi UEMATSU
Journal
of Wind Engineering, JAWE, Vol.40, No.1(No.142),
pp. 1-7, 2015.1
44.高層建物の帳壁緊結
部疲労損傷評価用風外力の検討
寺
ア浩,植松康
日
本建築学会構造系論文集,第80巻,
第708号,pp.207-217,2015.2
Characteristics
of wind forces acting on external wall binders of high-rise
buildings
from
the viewpoint of fatigue damage
Hiroshi TERAZAKI, Yasushi UEMATSU
Journal of Structural and Construction Engineering,
Transactions AIJ, Vol.80 No.708, pp.207-217, 2015.2
Abstract: The present paper discusses the characteristics
of wind forces acting on the external wall binders of a
high-rise building based on the results of a wind tunnel
experiment from the viewpoint of fatigue damage. Special
attention is paid to the binders connecting the external
curtain walls and the structural frames. A wind force
direction conversion factor for the relation between wind
force and member stress is introduced into the fatigue
evaluation together with the normalization of stresses.
Furthermore, a discussion is also made of the influence of
mean stress on the fatigue damage, which depends on the wind
direction and speed.
45.Design wind loads for open-topped
storage tanks in various arrangements
Yasushi Uematsu, Jumpei Yasunaga, Choongmo Koo
Journal of Wind Engineering and Industrial
Aerodynamics,
138(2015) pp. 77-86,
2015.3
Abstract: The present article proposes a model of wind
force coefficient for designing open-topped storage tanks
in various arrangements; main focus is on oil storage tanks. In our previous
paper, we discussed the design wind
force coefficients
for isolated tanks, based on wind tunnel experiments of wind
pressure distributions and buckling as well as on a finite element analysis of buckling under static
wind loading. In
practice, however, more than two tanks are constructed in
various arrangements in a site.
In such cases, the wind force distribution and the
resultant buckling behavior of tanks may be affected by the
arrangement significantly. Therefore, the
present article focuses on the grouping effect on the wind
force distribution and the buckling behavior.
First, the wind pressures are measured simultaneously
at many points both on the external and internal surfaces of a
rigid model for various arrangements of two to four tanks in a
turbulent boundary layer.
The effects of arrangement pattern and gap spacing of
tanks on the pressure distributions are discussed.
Then, the buckling of tanks under static wind loading
for various arrangements is analyzed by using a non-linear finite element method.
The results indicate that the distribution of
positive wind force coefficient in the windward area affects the
buckling behavior significantly. Finally,
based on the results obtained, we propose a model of wind
force coefficient on tanks in various arrangements by
modifying the model for isolated tanks that we proposed in our
previous paper. For
evaluating the design wind loads a gust effect factor approach
is employed. The
wind load evaluation is based on the quasi-steady principle
and therefore the resonant effect is not taken into account.
46.2014年2月14〜16日
の大雪による構造物の被害
‐
群馬県におけるカーポート並びに農業用ハウスの被害を中心として‐
植
松康
東
北地区災害科学研究,第51巻,pp.165-170,2015.3
Damage
to structures due to heavy snow during February 14 to 16,
2014
-
Mainly on the damage to carports and greenhouses in Gunma
Prefecture -
Yasushi Uematsu
Tohoku Research Group for Natural Disaster
Science, Vol.51, pp.165-170, 2015.3
47.妻面開放型骨組膜構
造建築物の構造骨組用風力係数並びに外装材用ピーク風力係数
高
舘祐貴,植松康,ガヴァンスキ江梨
膜
構造研究論文集2014,No.28,2015.3
Wind loads on the main resisting systems and
cladding of open-type framed membrane structures
Yuki Takadate, Yasushi Uematsu , Eri Gavanski
Research Report on Membrane Structures 2014,
No.28, 2015.3
付録 平成26年
度
修
士学位論文及び卒業論文題目一覧
博士学位論文
寺ア 浩 風外力を受ける高層建物の外装材疲労損傷評価に
関する研究
金 南昔 研究形態制御による風力低減効果を利用した耐候
性園芸用鉄骨ハウスに関する研究
修士学位論文
山口 貴之 風荷重を受けるオープントップオイルタンクの座屈・振動に対するリングの
補剛効果に関する研究
今野 大輔 強風下における窓システムの挙動と耐風性能評価
に関する研究
橋 麻衣 金属サイディングを用いた外壁システムの実変動
風圧下における挙動と
耐風性能評価法に関する研究
卒業論文
橋 和也 園芸用パイプハウスの風・雪荷重による崩壊過程に関する研究
橋本 幸治 円筒形独立上屋の設計用風力係数に関する研究
渡部 慶 金属サイディング固定部の頭抜け破壊を対象とし
た耐風性能評価に関する研究
2
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