在廣東省鋼結構優質工程最高榮譽鋼結構金獎“粵鋼獎”的獲獎名單中，君康軒項目以高質量高水準的完成度斬獲2020年第十二屆『廣東省鋼結構金獎“粵鋼獎”』設計類二等獎。In the winner list of 12th Guangdong Steel Structure Gold Award "Guangdong Steel Structure Award" last year,which also represents the highest honor of Guangdong Steel Structure Quality Project, Royal Harmony Hub Project has its high quality recognized and won the second price in the design quality competition.
"Tilt, hit, convert, twist, rotate, transfer, curve and stability", the perfect golf hitting moment, gives a brand-new explanation and definition to dynamic balance. Royal Harmony Hub, with its inspiration taken from continuously twisted complex curved surface, showcases the structural dynamics and a blend of strength and gentleness incisively and vividly.君康軒，位于廣東省佛山市順德區北滘鎮新城區，總建筑面積31897.53㎡。主體結構采用混凝土結構，局部采用鋼結構。
Royal Harmony Hub is located in the new district of Beijiao Town, Shunde District, Foshan City, Guangdong Province, with a total construction area of 31,897.53㎡. The main structure is concrete based and coupled with some steel. And this project tries to explore its shape design from different perspectives, such as geometrical shape, vertical twist, horizontal extension, block arrangement, and local raising.
Structural System And Layout
Structural Layout項目采用混凝土框架結構與鋼結構組合的結構體系，懸挑和大跨度部分通過大懸挑桁架和大跨度鋼梁來實現。項目二層結構布置，結構西側為33米跨度鋼梁，截面高度為1400mm。結構東側為入口曲面雨棚,最大跨度為28米，鋼梁高度為800mm。The project has a structural system of concrete frame and steel, and the overhang and large-span parts use large cantilever truss and large-span steel beam. The project has a two-storey structure, with a 33-meter span steel beam on the west side and a section height of 1,400mm. There is a curved canopy at the entrance on the east side of the structure, with a maximum span of 28 meters and a steel beam height of 800mm.
三層結構布置，結構西側為33米跨度鋼梁，截面高度為1550mm。結構東北側、西南側和西北側存在懸挑桁架+吊柱區域，鋼梁截面為HA6530-1616，鋼柱截面為 HA4530-1820。The project has three-storey structure, with a 33-meter span steel beam on the west and a section height of 1,550mm. There are cantilever truss suspension column areas on the northeast, southwest and northwest sides. The steel beam section is HA6530-1616, and the steel column section is HA4530-1820.
四層結構布置，結構西側為33米跨度鋼梁，截面高度為1550mm。結構東北側和西南側為懸挑桁架（下弦桿部分）。下弦桿截面為HA9040-3030及HA6530-1818，斜腹桿截面為HA6030-2020，HA4030-1414。The project has four-storey structure, with a 33-meter span steel beam on the west side and a section height of 1,550mm. The northeast and southwest sides are cantilever trusses (lower chord part). The lower chord sections are HA9040-3030 and HA6530-1818, and the diagonal web sections are HA6030-2020 and HA4030-1414.
五層（屋面構架）結構布置，結構東北側、西南側和西北側為懸挑桁架（上弦桿部分）。上弦桿截面為HA6530-1616，斜腹桿截面為HA6030-2020，HA4030-1414。在結構的南看臺、西看臺和北看臺設計了鋼結構裝飾架，截面為T1810-1010。The project has a five-storey (roof frame) structure, and the northeast, southwest and northwest sides are cantilever trusses (upper chord part). The upper chord section is HA6530-1616, and the diagonal web sections are HA6030-2020 and HA4030-1414. Steel decorative frames are designed in the south stand, west stand and north stand , with a section of T1810-1010.
3D Model Design
采用BIM正向設計指導整個設計階段工作，通過對整體結構建立BIM結構模型，以確保各結構構件與設備及建筑專業在空間上相互避讓，避免錯漏碰缺。同時，本工程采用TEKLA軟件進行鋼結構建模計算，保證鋼結構詳圖精準度，為后期鋼結構構件加工的準確性提供保證。In the project, BIM forward design is adopted to guide the whole design stage.A BIM structural model is established to ensure that all structural components, equipment and inter-disciplinary designs will not collide and avoid any possible mistakes and deficiencies. Meanwhile, the TEKLA software has been applied to help with steel structure modeling calculation and to guarantee the precision of steel structure detail drawing, which works to ensure the steel structure component installation later.
Realization Of Structural Dynamics
Overall Streamline And Shape Design
為了塑造君康軒建筑特有的生生不息運動氣質，結構設計考慮將大懸挑、雙曲面、大跨度和桁架等元素有機結合，輕巧明快而不失層次感，打造出極具視覺沖擊力的建筑結構型體。In order to showcase the energizing, vigorous temperament of Royal Harmony Hub, elements such as large cantilever,double curved surface, large span and truss are applied as appropriate, which looks refreshing and structural, and creates a powerful, grand building.
復雜結構與連續曲面的運用，勢必增大結構的分析難度，為此設計團隊采用多個軟件進行多維度的整體分析以及局部節點分析。立面上的切割線同時也是結構的重要元素，切口的位置是與結構充分討論后確定的，既有效提高結構的剛度，又兼顧了結構的延性。位移比是控制結構扭轉效應的關鍵指標，下表2列出在風荷載和地震荷載作用下結構整體在X和Y方向的位移情況，結果顯示：結構在兩個方向上的層間位移比和位移角均滿足規范要求，說明結構設計合理。The complex structure and continuously curved surface add difficulties in analyzing the structure. Therefore, the design team used varieties of software to analyze the overall structure and local joints from multiple dimensions. The cut line on the facade is also an important element of the structure, and the position of the cut is determined after deliberate discussion on the structure, which not only effectively improves the stiffness of the structure, but also takes into account the ductility of the structure.Displacement ratio is the key index to control the torsional effect of the structure. Table 2 below lists the displacement of the whole structure in X and Y directions under wind load and earthquake load action. The results show that the inter-storey displacement ratio and displacement angle of the structure in both directions meet the standard requirements, justifying that the structure design is well-considered and reasonable.
Design Of Large Cantilever Truss
項目建筑體型為下部收進，上部外擴，結合建筑體型方案及內部空間，結構設計采用鋼結構懸挑桁架+下吊柱組合形式。桁架高度5米，最大懸挑達15米。懸挑桁架平面布置圖如圖所示。由于懸挑桁架跨度大且要實現整體流水曲線，以契合主體結構，因此為了確保大懸挑桁架受力性能達到最優，方案經過多次比選后決定采用斜拉桿布置形式。The building shape of the project features lower part retraction and upper part expansion. Combined with the building shape scheme and internal space, the steel structure cantilever truss and lower hanging column are adopted in the structural design. The truss has a height of 5 meters and a maximum cantilever of 15 meters. The layout of the cantilever truss is shown in the figure. Because the cantilever truss has a large span and needs to realize the overall curve to fit the main structure, in order to ensure the optimal mechanical performance of the large cantilever truss. And after comparing several schemes, we decided to adopt the arrangement of diagonal tie rods.
采用斜拉腹桿，桁架深入于主體結構里面，以下吊柱形式，提高建筑空間使用率。對比發現，該方案在斜腹桿方面具有大的截面優化優勢，且主體結構配筋整體明顯下降。標準荷載作用下位移約40mm。下懸桿均有混凝土樓板，設計時沒有考慮混凝土的抗壓能力，僅作為二道防線考慮。Cable-stayed web members are adopted, and the truss is arranged into the main structure. The form of lower hanging columns is adopted to improve the utilization ratio of building space. By comparison, it is found that the scheme allows for large cross-section optimization in inclined web members, and the reinforcement of the main structure is obviously reduced as a whole. The displacement under standard load is about 40mm. The lower suspension rods all have concrete floors, and the compressive capacity of concrete is not considered in the design, but only considered as the second defensive line.
在地震作用下，樓板需要把水平力傳遞和分配到豎向抗側力構件，并協調本層各個豎向抗側力構件的變形。為了準確反應結構舒適度性能，通過有限元分析軟件SAP2000和YJK建立模型對比分析，大懸挑桁架舒適度指標結果表明：在荷載作用下，SAP2000（整體模型）最大加速度為18.96mm/s2，出現在2位置,；SAP2000（一層模型）最大加速度為28.91mm/s2，出現在4位置；YJK（一層模型）最大加速度為48.40mm/s2，出現在8位置。懸挑樓蓋振動加速度和峰值加速度均滿足規范要求（峰值加速度限值56mm/s2）。計算結果說明，大懸挑桁架體系具有較好的整體穩定性，正常使用下具備較大的安全富余度。Under earthquake action, the floor needs to transfer and distribute the horizontal force to the vertical lateral force resisting members, and coordinate the deformation of each vertical lateral force resisting member on this floor. In order to accurately reflect the comfort performance of the structure, the finite element analysis software SAP2000 and YJK are used to establish a model for comparative analysis. The comfort index results of the large cantilever truss show that under the action of load, the maximum acceleration of SAP2000 (integral model) is 18.96mm/s2, appearing at position 2; the maximum acceleration of SAP2000 (1st layer model) is 28.91mm/s2, which appears at position 4; the maximum acceleration of YJK (1st layer model) is 48.40mm/s2, appearing at position 8. The vibration acceleration and peak acceleration of the cantilever floor meet the standard requirements (the peak acceleration limit is 56mm/s2). The calculation results show that the large cantilever truss system has good overall stability and large safety margin under normal use.
Semi-circular Steel Structure Stairs
當形式在建筑中發揮作用時，美麗的事物就此產生。樓梯經常被看做為任何空間的焦點，許多設計師將樓梯的設計視為建筑內部的靈魂?？缭降匕?，連通室和平分中庭，這些過渡結構在建筑中有著舉重若輕的地位。When form plays a role in architecture, beautiful things come into being. Stairs are often regarded as the focus of any space, and many designers regard the design of stairs as the soul inside the building. These transitional structures, such as crossing floor, connecting rooms and dividing atrium, have an important position in the building.
中庭半圓鋼結構樓梯直徑達10米，由兩邊鋼板扶手+踏步板+封底底板構成。通過對鋼板扶手增加一個T型設計，從構造上增加扶手的穩定。The semi-circular steel structure staircase at the atrium has a diameter of 10 meters and consists of steel plate handrails on both sides, stepping plates and bottom cover plates. By adding a T-shaped design to the steel armrest, the stability of the armrest is increased in the structure.
在進行線性屈曲分析時，經過計算，支座為鉸接時，樓梯屈曲因子為5.09；支座固接時，樓梯屈曲因子為5.85。均有著較大的屈曲因子，結構穩定性較好，滿足穩態要求。In the linear buckling analysis, through calculation, when the bearings are hinged, the buckling factor of stairs is 5.09; when the bearings are fixed, the buckling factor of stairs is 5.85. Both of them have large buckling factors, and the structural stability is good and compliant with requirements on steadiness.
計算樓梯應力時，支座為鉸接時樓梯最大應力為222.9MPa，支座為固接時樓梯最大應力為262.8MPa。最大應力均出現在支座附近。從樓梯應力云圖可以看出，結構整體受力較好，滿足規范要求。When calculating the stress of stairs, the maximum stress of stairs is 222.9 MPa when the bearings are hinged and 262.8 MPa when the they are fixed. The maximum stress occurs near the bearing. It can be seen from the stress nephogram of stairs that the overall stress of the structure is good and meets the standard requirements.
Long-span Steel Beam
本項目游泳池上空鋼梁跨度達33米，鋼梁平面布置如圖所示。鋼梁截面選用HA14055-2536，為了保證樓板的連續性，鋼梁與框架柱連接時采用剛接設計，鋼次梁與混凝土框架梁連接時采用鉸接設計。大跨度鋼梁現場吊裝采用分段吊裝組合施工，以確保實現大跨度安全施工。The span of the steel beam above the swimming pool is 33 meters, and the plane layout of the steel beam is shown in the figure. HA14055-2536 is selected as the section of steel beam. In order to ensure the continuity of floor slab, rigid connection design is adopted when connecting steel beam with frame column, and hinged design is adopted when connecting steel secondary beam with concrete frame beam. Segmented hoisting combination construction is adopted for the site hoisting of long-span steel beams, to ensure the long-span safe construction.
對大跨度鋼梁在地震組合工況下的變形進行了對比分析，分析結果表明構件的變形和承載能力均可滿足規范要求并能達到設計既定的性能目標。The deformation of long-span steel beams under the combined conditions of earthquake has been compared and analyzed, and the result shows that the deformation and bearing capacity of the structural components can meet the standard requirements and achieve the performance goals set by the design team.
Curved Steel Structure Mesh Decorative Frame
主體結構四周環繞著曲率各異的曲面鋼結構網狀裝飾架，鋼構件的定位與節點連接是整個曲面網架的關鍵所在，本項目結合BIM模型設計，實現了現場構件精準定位。The main structure is surrounded by curved steel structure mesh decorative frames with different curvatures. The positioning of steel members and joint connection are the key points of the whole curved grid. The project applies BIM model design to ensure accurate positioning of field members.
采用通用有限元分析軟件對曲面鋼結構連接節點進行受力分析，計算結果表明：最大應力出現在桿件交匯處區域，節點整體處于彈性范圍，可以滿足承載能力的設計要求。The general finite element analysis software is used to analyze the stress of the curved steel structure connection joints. The calculation results show that the maximum stress appears in the intersection area of the members, and the whole joint is in the elastic range, which can meet the design requirements of bearing capacity.
設計師安東尼·高迪曾說，“直線屬于人類，曲線屬于上帝”。然而，不愿“墨守成規”的結構團隊通過大膽的雙曲面和懸挑大跨結構元素，賦予了君康軒最極致的動感韻律。當我們重新審視這座建筑時，“桀驁不馴”的連續曲線正是其靈魂核心。Designer Antoni Gaud once said, "Straight lines belong to human beings while curves belong to God". However, the structural team’s boldness of not "sticking to the rules" has given Royal Harmony Hub the perfect dynamics by applying double curvature and cantilever and long-span structural elements. Curves are not exclusive to God. When we re-examine this building, we can see that the continuous curve is the core of its soul.
結構團隊：呂偉文、江棹榮、梁嘉慶、何湘、吳海權、楊振鈞、林嘉銘、劉豐、湛宇杰、盧家斌、李少華、肖莉芳、許海峰Project Name: Royal Harmony HubProject Location: Shunde, FoshanClient Name: Foshan Shunde Junlan Sports Co., LtdDesign Company:Guangdong Tianyuan Architectural Design Co., Ltd. （abbreviated as“REMAC TY“ ）Structural Team: LV Weiwen, Jiang zhuorong, Liang Jiaqing, He Xiang,Wu Haiquan,Yang Zhenjun,Lin Jiaming,Liu Feng,Zhan Yujie,Lu Jiabin,Li SHaohua,Xiao Lifang,Xu Haifeng 陳曦. 某帶大懸挑的辦公樓結構設計[J]. 建筑結構，2016，50(17):56-64，77.Chen Xi. Structural Design of an Office Building with Large Cantilever [J]. Architectural Structure, 2016, 50 (17): 56-64, 77. 陸道淵，黃良，江琣，等. 長懸挑結構樓蓋振動舒適度分析與控制[J]. 建筑結構, 2015, 45(19):13-17.Lu Daoyuan, Huang Liang, Jiang Pei, et al. Analysis and Control of Vibration Comfort of Long Cantilever Structure Floor [J]. Architectural Structure, 2015, 45 (19): 13-17.
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