剪力墙安排及尺寸肯定方法(国外英文资料).docVIP

剪力墙布置及尺寸确定方法(国外英文资料) Shear wall layout and sizing method The structure of the structure should avoid the structure of short limb shear wall Short limb shear wall structure means including cross section height and thickness ratio of less than 8 short limb shear wall more shear wall structure system, the implementation of guangdong province technical specification for concrete structures of tall building supplementary provisions (hereinafter referred to as the supplementary provisions) the first is quantified delimited 3.2.4 with more short limb shear wall shear wall structure refers to the short limb wall section area accounted for over 50% of the total area of the shear wall. When the structure is a short limb shear wall structure, according to the technical specification for concrete structures of tall building article 7.1.2 regulation, structure decreases, the maximum height is strengthening measures of short limb shear wall at the same time, to a greater influence on the actual design of ... the axial compression ratio, the seismic grade into one, two, three, should not be greater than 0.5, 0.6, 0.7; For a short arm shear wall with no wing or end column, its axial pressure is reduced by 0.1 , ... 其他各层（非底部加强部位）短肢剪力墙的剪力设计值，一、二级抗震等级应分别乘以增大系数1.4和1.2”等，故实际设计时，宜尽量避免采用短肢剪力墙结构体系，以获得较优的经指标，同时也可相对简化设计，且结构也具有更高的可靠度。但应注意，即使结构不属“具有较多短肢剪力墙的剪力墙结构”，《补充规定》的6.0.3条仍对短肢剪力墙有提高抗震等级、降低轴压比限值和加强构造配筋的要求。避免剪力墙结构成为短肢剪力墙结构体系的做法为：保证一般剪力墙（截面高度与厚度之比不小于8的非短肢剪力墙）的面积数超过剪力墙总面积的50％，具体操作如下：（1）分别使X向和Y向的一般剪力墙面积均超过相应方向剪力墙总面积的50％；（2）某方向的剪力墙，当截面高度与厚度之比大于8时，按一般剪力墙计算；当长度与厚度之比在5～8之间，或为小于5的独立墙肢，或为小于5的非独立墙肢且与之相连的垂直方向剪力墙截面高宽比也小于5时，按短肢剪力墙计算；当非独立墙肢截面高度与厚度之比小于5且与之相连的垂直方向剪力墙截面高度与厚度之比不小于5时，可将该墙肢看作是属于与之相连的垂直方向剪力墙的翼缘，不按剪力墙计算面积。但应注意，当剪力墙满足《补充规定》第3.2.3条规定，即“厚度不小于层高的1/15，且不小于300mm，高度与厚度之比大于4时”，仍属一般剪力墙。 Control the reasonable thickness of shear wall A converted shear wall thickness of the floor here is defined as: the floor shear wall concrete volume and the structure of floor area ratio, it is reflecting the shear wal