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CProject Information in Japan
Refreshment of the Wakato BridgeyN;cÚ0nÜàÛ·DMÞàEã]µ)k=KáÝEÀ ¡¸« ¬¾µ,r¯±c-(¶*-FÀOS«½ `³B&À>Xª± ¸«¤¬¶$´/?·d¶ß°²« $ÅØÎÓ¶ `$ÅØÎÓ#< 1¶Þah ÚG    åÛ¶ÒÈÍÖÄÕÂÑØÀT5ª±ÆÁ 1¶jgÀ|@ª¸ª­¤b¹±*-²ª­ ÌÖÊÀT
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September of 2012 is the 50th anniversary of the Wakato Bridge opening (Photo-4). An investigation ofsoundness of the whole bridge and a replacement of suspender ropes and cable band bolts work have been conducted and will be finished just before the anniversary.
The investigation and the replacement work are as follows.
1. Main cable investigation
Two panels (16.8m) of wrapping wires were removed and the inside condition of the main cable wasinvestigated. The inside condition is very sound.
Breakage of many wires was found at the contact
points between the main cable and cable bands whencable bands were removed. Additional investigationof cable bands under more severe condition has been
conducted based on the above result (Photo-5).
2. Replacement of suspender ropes
Four suspender ropes of two panel points are replaced. The removed ropes are used for tensile test
and corrosion test at the socket area in order to investigate the soundness of suspender ropes.
3. Replacement of cable band bolts
All of the cable band bolts (n=1584bolts, "=46mm, l=480m ) are replaced by new bolts ("=30mm, l=600m ). Sectional area of some cable bandbolts at lower side is reduced because lower side bolts
are influenced by water (photo-6).
(Original information was provided by Kitakyushu CityRoad Public Corporation.)

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Photo-4 Wakato Bridge0nÜâ ÌÖÊÐÓÉ6¼\¡
Photo-6 Exchange of cable band bolts

Overseas Information
Matadi Bridge in Congo (DR Congo)
Matadi Bridge is a 722m long suspension bridge withæâãÜhÌ³Þèßm$1>BêÞèßëËæâã
ÜMÊ]bËY6ÊÕ× ¥¬«§ NÊP¿ÙÃh a 520m center span, which was opened in 1983 in Matadi
in the Democratic Republic of the Congo (DR Congo).
ª¦¦²³#FQ  ©¦¤² Ë=hÆÁ´HU*d".
The bridge has two lanes for traffic with two sidewalks.
Êj ËµØ ¦   Ë  ÇÀÅ,u¿ÙÅ¶ÏÁ´ The bridge was designed to have 4 lanes and a rail way inLd  ; Ç³  [Û ¨   ÏÆEÓÁ¾Ç» the future.
4dØÕ·Ê ¿ÙÅ¶ÏÁ´Because the bridge engineers of the Banana Kinshasa
HUºÖÁÆÊ ¦« N»  ÀÅ¶ÏÁ»³hÛ} Equipment Organization (OEBK) have conducted gensÁØåääéÝèáçà' 0AËW  Ë75 eral maintenance and repainting of the bridge, the bridge
is relatively in a good condition in spite of 28 years afterÊÕ×D×`¸Ó~;É -» ÚÙÅ¹×h+Ì
the completion.
l w GÉqTÆÁ´However, because of the internal and international
ÀºÀ³hËHURÞèßÌ BÇËV&Ëvt warfare, the political condition of DR Congo had been|ÍÈ¶B2qnÊµÄÃ¾ÇÉÈºÖ³•X}sÊ very bad for a long time after the completion. EfficientS ÉicÉÈË_\»pÊ¿ÙÂ³hË  equipment necessary for maintenance has not been reeÓµØ{OË gË -ÒS ÉqnÇÉÄÅ¶ newed. Detailed inspection and some repair works werenot conducted.
ÏÁ´¿ÖÊP^Ê]bÆz-Û<½ÃW  ÒMany engineers of OEBK had a technical training in ¡8À ¦ (ÛkÁËÐÇÉÄÅÀÏ¶ÏÀÃ´Japan in order to study Japanese bridge engineering whenb?  ÆÌ³æâãÜhÎËW 95ÇÀÅB the bridge was under construction. However, only two
95ifê±°®­ëºÖÞèßË=h}sW   engineers who studied and trained in Japan for the bridgeUËÃÑËz-Û ¯¦¦ NOÇ ¯¦§ NOË ¦ @< maintenance are working in OEBK.
HSBE has conducted two JICA training courses forÀ³rCÎyaK JÛ ¯¦¦ NOÇ ¯¦§ NOË ¦OEBK engineers in 2010 and 2011. HSBE sent its engi@o ÀÏÀÃ´neers to DR Congo as JICA experts in 2010 and 2011.
)RÒ³z-Ë</ÓK Jo |ÊÕ×æâã
HSBE will continue to provide training courses andÜhÎËW ZYÊ95ÀÅÔ¼%IÆÁ´also to send its engineers to DR Congo for technical cooperation to Matadi Bridge.

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¢Photo-7 Matadi Bridge£3xìï Þèß(W  Ëz-qní(Photo-8 Training of Congoñese Engineers)3xìð Þèß(W  Ëz-qn ¦(Photo-9 Training at site)

International Conference
Technical Support for Ulsan Harbor Bridgeµ>þ ËÐÓÍÊÑ 5N6L;N<QuRû ðô
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±ò(^ aMw1ãýAøìàÎÉ p;¹¨þ^  ý%(V Cúþ^ ih, Á <Imð"ðôá^ ihÿàqQ}PExþ=N?LW-N1M.7þmSI ýAøìà4PDL-N1PCMPIþ O ,Or û#¡#5N2KP=þmSý÷æù æ"ðôá
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mSë°Gðôûí*úòá

According to the contract of “the technical advice
services for tunnel type anchorage of the Ulsan GrandBridge” with ENVICO Consultants Co., Ltd., engineersof Honshu-Shikoku Bridge Expressway Co., Ltd.
(HSBE) have visited the site twice to provide technicaladvices.
Technical advice has been provided on design, fabrication and erection of the cable anchor frame and innerconcrete works based on technical experiences andknowledge of tunnel type anchorage at the Kurushima-Kaikyo Bridges.
At present, excavation for tunnel type anchorage andexecution of concrete towers have started after completion of two tower foundation works at the Ulsan HarborBridge.

Long-Span Bridges in China/ SUT =N?L-N1M.7þc0Photo-10 Excavation for Tunnel Type Anchorage

Mr. Fujiwara, the director of Long-Span Bridge Engineering Center at HSBE and the leader of the delegation, and three HSBE members visited Runyang Bridge(suspension bridge), Jiangyin Bridge (suspensionbridge), and Sutong Bridge (cable-stayed bridge) whichcross Yangtze River in China on December 15-16, 2011,and had technical meeting with administrators of thesebridges and professors.
During the meeting, they had aggressive discussions
on the present condition and problems associated withmaintenance, bridge monitoring, and so on. HSBE
members also visited exhibition halls of Runyang Bridge
and Sutong Bridge, an anchorage of Jiangyin Bridge, anoperation center, etc.

Á¿ÀÀ U ÀÁ o ÀÂ n]ÀÃ nà 4¯Ex^ 9N;P¯,=¯ûðùX8ú#>¯yýdê(~fExº7x»ày³Exº7x»à §ExºlXx»þW÷þ¯Ex, 9ðà^ *¥5!xv£t, æ"ðôá^ *¥úÿ6xþ   5!EHjb ,'èà `  þz$¢¶àxvJ>;KN3þ
( ëå'à| ü[ 'gë +)"ðôáxv£túÿà~fEx5! §ExþO ¸,
/ SUU ^ *¥9ðô)àk®]5!y³Exþ-N1M.78E Photo-11 Technical Meeting
MPJ , Lð"ðô"päZYUSTT[[  \T#F3N­s§XSUSVVQ-PAN0P8"KBLRÒËÏ ¿ÄÅQÁÆÀRÀ¿ÄÀ ÌÈÔ ¿ÄÅQÁÆÀRÀ¿ÅÄ¯Ex^ 9N;P×ÞÞÜÇ¾¾ßßß½ÙÕ¼×ÛÚÝ×Ø½ÖÛ½ÙÜ
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Photo-12 Jiangyin Bridge

Honshu-Shikoku Bridge ExpresswayCompany Limited
4-1-22 Onoedori, Chuo-ku, Kobe, 651-0088, Japan
TEL : +81-78-291-1071 FAX : +81-78-291-1087
Long-Span Bridge Engineering Center
http://www.jb-honshi.co.jp/english(Construction Management)pR;>©¹¨«¦uW* úÿàpR;>©xþV O `  ,§ñù@öô^ , {ihw1ûæçYúe-,ª#ù"æ'"òáxvþ••O OmSê& `  "úà&w$+þ Cý öù^  6HP=,ïóùæôõì"òá Qî ¤©.\ _O²·3LPE ÒËÏ¿ÄÅQÁÆÀRÀ¿ÄÀR