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'{{Infobox building |name = Baiyoke Tower II |start_date = 1990 |completion_date = 1997 |image = The Baiyoke Tower II closeup in Bangkok, Thaliand.jpg |caption = |location = 222 Ratchaprarop Road, [[Ratchathewi District|Ratchathewi]]<br> [[Bangkok]], [[Thailand]] | coordinates = {{coord|13.754167|100.540556|region:TH_type:landmark|display=it}} |status = Complete |building_type = Hotel |architectural = {{Convert|309|m|abbr=on}} |tip = {{convert|328.4|m|abbr=on}} |cost = ฿3.6 billion |floor_count = 88 |floor_area = {{convert|179400|m²|abbr=on}} |elevator_count = |room_count = 673 |architect = Plan Architects |structural_engineer = Arun Chaiseri Group |main_contractor = Concrete Constructions |developer = Land Development Corporation |owner = Land Development Co. Ltd. |website = [http://www.baiyokehotel.com/ www.baiyokehotel.com] |references = <ref name=ctbuh>{{CTBUH|487}}</ref><ref>{{Emporis|107136}}</ref><ref>{{SkyscraperPage|81}}</ref><ref>{{Structurae|20004093}}</ref> }} '''Baiyoke Tower II''' ({{lang-th|ใบหยก 2}}; {{RTGS|Bai Yok Song}}) is an 88-[[storey]], {{Convert|309|m|abbr=on}} [[skyscraper]] [[hotel]] at 222 Ratchaprarop Road in the [[Ratchathewi District]] of [[Bangkok]], [[Thailand]]. It is the second tallest [[building]] in the city after [[MahaNakhon]], and comprises the Baiyoke Sky Hotel, the tallest [[hotel]] in [[Southeast Asia]] and the seventh-tallest all-hotel structure in the world.<ref name=tallestHotels>{{cite web |url=http://skyscrapercenter.com/List/tallest-hotel-100-buildings|title=100 Tallest Hotels |work=Council on Tall Buildings and Urban Habitat |accessdate=2 May 2012}}</ref> With the [[antenna (radio)|antenna]] included, the building's height is {{convert|328.4|m|abbr=on}}, and features a public [[observatory]] on the 77th floor, a bar called "Roof Top Bar & Music Lounge" on the 83rd floor, a 360-degree revolving roof deck on the 84th floor and the hotel offers 673 guest rooms.<ref name=ctbuh/> Construction on the building ended in 1997, with the antenna being added two years later. The Baiyoke Sky Hotel website notes the height without the antenna as {{Convert|309|m|abbr=on}}, but the [[Council on Tall Buildings and Urban Habitat]] (CTBUH), [[Emporis]] and [[SkyscraperPage]] note it as {{Convert|304|m|abbr=on}}. [[File:Khách sạn baiyoke hotel thái lan.jpg|thumb|Baiyoke Tower II pass]] ==History== ===Late 1980s=== Project conceived by Panlert Baiyoke. ===Early 1991=== Official ground breaking. Foundation works carried out by Multiplex RSY Concert and the rest of the year of high quality of structions (Australia). Workers began to install 360 concrete piles (driven to 65m depth) before placing a 5m thick mat over the top. ===November 1992=== Concrete Constructions (Thailand) Ltd took over the project, work on the superstructure began. The contractor achieved 1.5 floors per month using jump forms and pumped concrete, the construction pace quadruple to 6 floors per month after the first 21 floors were built. ===1995=== Installation of mechanical and electrical services. Completion of the 19 level parking and retail podium. ===August 1996=== Concrete pouring ceremony on the tower's 85th floor (tower topped out in early 1997). ===June 1999=== Official opening of the Baiyoke Sky Hotel ===Other Technical Info=== This building contains a total 60,000 cubic metres of cement. Its floor plan is typically 50m square plate with corner columns (one side has open column for external lift). A 30m diameter cylindrical plate begins at the 80th floor. Up to 360 piles of concrete were driven through clay into thick sand layer to the depth of over 50m and sealed with a 5m thick mat. The building represents one of the most sophisticated uses of concrete in Thailand, with 60N/sq mm (compressive strength) concrete forming the main material for the columns in a lightweight composite structure along with steel box girder reinforcement. The concrete core is surrounded by a square pattern of hollow columns fused together by key studs with a 200mm outer layer of 60N high strength concrete. Columns start solid at the base and becoming hollow at the top. The erection of tower was sped up with the use of VSL Climbform self-climbing, modular system for construction of vertical walls. It is the first time VSL Climbform technology was in use in Thailand. Concrete were pumped to a 300m height level using Putzmeister pump (the pump previously set world record in high-rise conveying of concrete to a height of 532 metre during the construction of the Riva del Garda dam in Italy). And from the 300m level the concrete were lifted by a Favelle 310D luffing jib tower crane. Baiyoke 2 was the tallest reinforced concrete building in the world at the time of completion in 1997. This record was surpassed by CITIC Plaza building in Guangzhao (China) which was completed a year later. Site testing shows the building sway to a cycle of about six seconds. Expert sources suggested that the building may have sunk by 40mm during construction and may have impacted on the foundations of several smaller buildings nearby. The estimated cost of the project was put at around 3.4 Billion Baht (costed before the devaluation of the Thai Baht in July 1997). Initial plans call for a 140m high communication tower to be placed on top of the building ([http://www.geocities.ws/topsyturvy_6051/bangkok3d1.html see rendering of the building's 3D model with the proposed telecom tower on top]) although the developer has opted for a smaller radio transmission tower. Baiyoke 2 was the world's tallest hotel at the time it was completed - but this was never registered in the Guinness Book of World Records. The [[JW Marriott Marquis Dubai]] which completed in 2012 is currently the tallest hotel. == Sources == * Engineering News Record Magazine (June '96) International Construction Magazine (Nov '94) * Civil Engineering International (May '96) * Engineers Australia Magazine (Oct '96) * VSL News (1994) * Bangkok Post Archive ==Gallery== <gallery> File:Baiyoke_roof.jpg|Looking up at the top of the building from the 360-degree revolving roof deck on the 84th floor. File:Baiyoke01.JPG|The observation platform of the Baiyoke II tower. File:View north from the Baiyoke Tower II.JPG|The view north from Bangkok's Baiyoke Tower II with the [[Victory Monument, Bangkok|Victory Monument]] visible left of centre File:File-View eastfrom the Baiyoke Tower II.JPG|A view east from the observation platform of Bangkok's Bayoke tower showing the new rail link to the airport File:Bangkok skyline MARCH 2007.jpg|Bangkok skyline from Baiyoke Tower II File:Bangkok Siam Pathumwan.jpg|View of the tower and its surroundings File:03.11.15 19 Bangkoks høyeste bygning.jpg|The Baiyoke Tower II in Bangkok File:Bangkok Baiyoke 01.jpg|contrast </gallery> ==See also== *[[List of tallest buildings in Thailand]] ==References== {{Reflist}} ==External links== {{commons category|Baiyoke Tower II}} *[http://www.baiyokehotel.com Baiyoke Sky Hotel Official Site] *[http://www.planarchitect.com/ Plan Architect Co.] *[http://www.lumixphotos.com/tag/baiyoke/ Baiyoke Sky Hotel Photos] *[https://www.webcitation.org/query?url=http://www.geocities.com/topsyturvy_6051/b2.html&date=2009-10-25+23:11:46 Bangkok Highrises] *[http://www.thailandbilder.se/panorama/BaiyokeSkyTower/ Big panorama view from Baiyoke Towers] {{Supertall skyscrapers |current}} {{Tallest hotels}} {{Skyscrapers in Bangkok}} {{Visitor attractions in Bangkok}} {{DEFAULTSORT:Baiyoke Tower Ii}} [[Category:Hotels in Bangkok]] [[Category:Tourist attractions in Bangkok]] [[Category:Skyscrapers in Bangkok]] [[Category:Ratchathewi District]] [[Category:Hotel buildings completed in 1997]] [[Category:Hotels established in 1997]] [[Category:1997 establishments in Thailand]] [[Category:Retail buildings in Thailand]] [[Category:Skyscraper hotels in Thailand]]'