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（北京市建筑設(shè)計(jì)研究院有限公司， 北京 100045）

［摘要］雙肢或多肢剪力墻通過連梁聯(lián)系在一起，成為整體的抗側(cè)力結(jié)構(gòu)，具有良好的抗震性能，在實(shí)際工程中獲得了廣泛的應(yīng)用。由于側(cè)向荷載作用下連梁承受較大的剪力，極易出現(xiàn)剪壓比超限的情況，而單純降低連梁高度雖然會(huì)降低截面剪力，但同時(shí)也會(huì)引起截面抗剪能力的下降，多數(shù)情況下效果并不理想。本文按照《建筑抗震設(shè)計(jì)規(guī)范》（GB50011—2010）第6.4.7條的要求，提出并實(shí)現(xiàn)了一種任意多連梁（模擬設(shè)縫連梁）的分析設(shè)計(jì)方法，使小跨高比連梁順利轉(zhuǎn)化為大跨高比的兩根或多根連梁，其破壞形態(tài)由剪切破壞變?yōu)閺澢茐?，可有效避免剪壓比超限的情況。

［關(guān)鍵詞］剪力墻； 連梁； 水平縫； 剪壓比

中圖分類號(hào)： TU375 文獻(xiàn)標(biāo)識(shí)碼： A文章編號(hào)：  1002-848X(2016)S1-0647-04

Research on analysis method and application of slitted coupling wall-beam

Wu Yunpeng, Zeng Qiang, Han Bo, Miao Qisong

（Beijing Institute of Architectural Design, Beijing 100045, China）

Abstract: Multiple shear walls are combined together as a whole lateral force resisting structure by coupling beams. The structure is widely used in building construction, which has a good seismic performance. The coupling beams bear larger shearing force under lateral force, which is easy to occur shear-compression ratio overrunning. Even though reducing beam’s height would reduce shearing force, but it can also cause a decline in the ability of the shear capacity, in most cases the effect is not ideal. According to section 6.4.7 of Seismic design of building (GB 50011—2010), a method of analysis and design with arbitrary multiple coupling beams(simulation with slitted coupling beams) was proposed, so that a high coupling beam can be transformed into multi-coupling beams, meanwhile its failure mode can be changed from shearing failure mode into bending failure mode. The numerical examples used show that this method can effectively avoid shear force overrunning.

Keywords: shear wall; coupling beam; horizontal fractures; shear-compression ratio