华侨城大厦概念方案设计(KPF).pdf

Conceptual design proposal of OCT Building 03/19/2013华侨城大厦建筑概念设计方案|KPF 目录 CONTENT1. 城市研究Urban Analysis2. 解读华侨城OCT Features3. 基地分析Site Analysis4. 场地规划设计Site Planning (2) a predominately reinforced concrete structural system consisting of reinforced concrete-framed floors, reinforced concrete core walls, and reinforced concrete perimeter moment frames. 核心筒 Core wall 型钢混凝 土巨柱 Composite mega- column 钢斜撑 Steel diagonal 框架 Vierendeel frame 周边柱 Perimeter column 核心筒外钢梁内端由钢筋混凝土核心墙所支撑，而外端则由周边梁支撑。

周边梁支承于周边柱之间楼板采用由钢梁、压型钢板和钢筋混凝土组成的组合楼盖典型的办公室楼板平面图见图 3 The floor framing is supported at the interior by the reinforced concrete core walls, and at the perimeter by spandrel girders. The spandrel girders are in turn supported by the perimeter columns. The floor framing system consists of structural steel beams acting compositely with reinforced concrete slabs on metal deck. A typical office floor framing plan is shown in Figure 3. 图 1. 混合结构抗侧力体系 Figure 1. Lateral Load Resisting System of Composite Structural Scheme. 图 2. 混合结构抗侧力体系放大图 Figure 2. Enlarged View of Lateral Load Resisting System of Composite Structural Scheme. 型钢混凝土巨柱 Composite mega-column 钢斜撑 Steel diagonal 核心筒 Core wall 周边柱 Perimeter column 结构设计STRUCTURE design|KPF 125124图 3. 典型办公室楼板平面图-混合结构方案 Figure 3. Framing Plan for Typical Office Floor – Composite Structural Scheme. 周边斜撑框架 Perimeter braced frame 钢斜撑 Steel diagonal 位于中庭后边 的框架 Vierendeel frame along the back of atrium 型钢混凝土巨柱 Composite mega-column 周边柱 Perimeter column 图 4. 周边斜撑框架立面图 Figure 4. Developed Elevation of Braced Frame 图 4 显示了展开的周边斜撑框架立面。

另外，我们将考虑在机电与避难层于周边斜撑框架附加环桁架图 5 显示了带环桁架的周边斜撑框架立面 See Figure 4 for the unfolded elevations for the braced frame. Additionally, we will consider adding belt trusses to the perimeter braced frame at MEP and Refuge Floors. Figure 5 shows the unfolded elevations for the braced frame with the addition of belt trusses. 环桁架的主要功能是减小周边柱尺寸此外，环桁架也能提供抗侧和增加结构冗余度环桁架把巨柱之间的周边柱子上的荷载传递到巨柱上，这样可减小巨柱之间的周边柱的尺寸，同时也减少了相邻柱之间不均匀竖向变形另外，环桁架可发挥类似伸臂桁架的作用，减少混凝土核心筒上的倾覆力矩，从而减低核心筒墙厚，与增强整体结构的刚度在环桁架的上下弦杆所在的楼层需要加强楼板，来进一步加强建筑的抗侧力。

The main function of the belt-trusses is to reduce the perimeter column sizes; moreover, they can help provide lateral resistance and increase structural redundancy. The belt trusses transfer loads from the intermediate exterior columns to the mega-columns, minimizing the intermediate column sizes and reducing differential vertical displacements between the adjacent columns. Serving as “virtual outrigger trusses”, the belt trusses also reduce the overturning moment carried by the concrete core, hence reducing the thickness of the core walls, and increasing the overall lateral stiffness of the building. Strengthened floor diaphragms are provided at levels where the top and bottom chords of the belt trusses are located to further improve the lateral load resistance of the building. 环桁架 Belt truss 钢斜撑 Steel diagonal 位于中庭后边 的框架 Vierendeel frame along the back of atrium 型钢混凝土巨柱 Composite mega-column 周边柱 Perimeter column |KPF 127126zzzz 钢筋混凝土结构方案 钢筋混凝土结构方案的抗侧力系统包括以下部分： 1. 钢筋混凝土核心筒。

2. 由型钢混凝土柱和钢筋混凝土梁组成的周边框架 3. 连接核心筒和巨型柱的两道两层高的型钢伸臂桁架，与位于周边的环桁架 The lateral load resisting system of the Reinforced Concrete Structural Scheme consists of the following components: 1. the reinforced concrete services core; 2. the perimeter moment frame consisting of composite columns and reinforced concrete beams; and 3. two sets of 2-story deep steel outrigger trusses which couple the services core to the mega-columns, and the corresponding perimeter belt trusses. 这三个结构体系对重力荷载、地震荷载和风载作用提供了多重传力途径。

只要对三个结构体系的相对刚度作出调整，我们就可控制每个结构体系所承载的剪力与倾覆力矩的比例由此，我们能够对剪力墙的厚度以及周边框架和伸臂桁架的设计作优化 The three parallel systems provide multiple load paths for gravity, wind and seismic loads. By adjusting the relative stiffness of each of the three parallel structural systems, the portion of wind and earthquake induced shear and overturning moment carried by each system can be controlled. Accordingly, the thickness of the core walls, as well as the design of the moment frame and outrigger trusses can be optimized. 钢筋混凝土结构方案的抗侧力体系见图 6 与图 7。

Figures 6 and 7 show the lateral load resisting system for the reinforced concrete structural scheme. 图 6. 钢筋混凝土抗侧力体系 Figure 6. Lateral Load Resisting System of Reinforced Concrete Structural Scheme. 伸臂桁架 Outrigger truss 周边框架梁 Perimeter moment frame beam 核心筒 Core walls 环桁架 Belt truss 伸臂桁架 Outrigger truss 环桁架 Belt truss 楼板采用钢筋混凝土梁板结构核心筒外，钢筋混凝土梁支撑在钢筋混凝土核心筒和周边框架梁之间周边梁则由周边柱支撑钢筋混凝土核心筒内也是采用钢筋混凝土梁板结构图 8 显示了一个典型办公楼层的平面布置图 The floor framing consists of reinforced concrete beams and slabs. Outside of the services core, the floor framing span between the concrete walls of the services core and the perimeter moment frame beams. The perimeter beams are in turn supported by perimeter columns. Concrete beam-and-slab gravity system will also be used wit。