为减轻结构总重量、控制墙身截面厚度、满足轴压比和抗震性能要求,中国尊大厦核心筒底部区域采用内置钢板混凝土剪力墙,中间区段采用内置钢板支撑混凝土剪力墙;在结构塔冠位置(104 层及以上)由于刚度突变及鞭梢效应的影响,采用内置钢板混凝土剪力墙等措施予以加强。由于目前尚无内置钢板支撑混凝土剪力墙抗震性能的研究,因此对内置钢板支撑混凝土剪力墙进行了专项试验研究和动力弹塑性分析。结果表明,内置钢板支撑混凝土剪力墙施工简单,混凝土浇筑密实度容易得到保证。其刚度和受剪承载力与内置 H 型钢混凝土剪力墙的刚度和受剪承载力基本相同,两种墙的极限变形能力和耗能能力也基本相当。
Hybrid Coupled Walls (HCW) are comprised of two or more reinforced concrete wall piers
connected with steel coupling beams distributed over the height of the structure. Extensive
research over the past several decades suggests that such systems are particularly well suited for use in regions of moderate to high seismic risk. This paper reviews the state-of-the-art in seismic modeling, analysis and design of hybrid coupled wall systems. Design methodologies are
presented in both prescriptive and performance-based design formats and a discussion of alterative types of hybrid wall systems is provided.
STM(Strut and Tie Mode1)模型具有力学概念明晰、受力直观、简便和易于掌握等优点,已经被广泛用于结构复杂区域或构件配筋计算和梁柱节点强度校核等。基于STM模型的概念,本文提出一种由拉杆、压杆和刚性梁组成的剪力墙宏观单元模型,用于离散高层钢筋混凝土结构中的剪力墙,尝试改进高层钢筋混凝土结构弹塑性地震反应分析中的剪力墙模拟问题。