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（1 北京市建筑設(shè)計(jì)研究院，北京 100045； 2 浙江大學(xué)空間結(jié)構(gòu)中心，杭州 310027）

［摘要］鋼管樹(shù)狀結(jié)構(gòu)作為仿生結(jié)構(gòu)受力合理，但設(shè)計(jì)困難。結(jié)合具體工程，總結(jié)了分杈類和曲線纏繞類兩類典型的樹(shù)狀結(jié)構(gòu)形式。探討了兩類鋼管樹(shù)狀仿生結(jié)構(gòu)的穩(wěn)定性設(shè)計(jì)方法。通過(guò)理論推導(dǎo)和有限元驗(yàn)證，對(duì)樹(shù)狀結(jié)構(gòu)穩(wěn)定性設(shè)計(jì)時(shí)計(jì)算長(zhǎng)度系數(shù)的取值方法提出了建議，供工程設(shè)計(jì)時(shí)參考。

［關(guān)鍵詞］樹(shù)狀結(jié)構(gòu)；穩(wěn)定性；仿生；鋼管柱；計(jì)算長(zhǎng)度系數(shù)

Stability design on the dendritic structure with steel tubes

Ma Hongbu^１，Shen Li^１，Gao Boqing²，Zhu Zhongyi^１，Zhang Yanping^１， Wang Tieying^１（1 Beijing Institute of Architectural Design，Beijing 100045，China；2 Space Structures Research Center，Zhejiang University，Hangzhou 310027，China）

Abstract:The dendritic structure with steel tubes which is a kind of bionic structures has rational mechanical behavior，but is hard to design.A summary was made on two types of dendritic structures with steel tubes in engineering cases. The methods of stability design of the two types of dendritic bionic structures with steel tubes were discussed。It is advised to determine the magnitude of effective length coefficient when designing the stability of dendritic structure through theoretical derivation and finite element methods. The principles are proposed for design of the structure.

Keywords: dendritic structure; stability; bionic; steel tubes; effective length coefficient

作者簡(jiǎn)介：馬洪步，碩士，助理工程師，Email：mahongbu@163.com。

參考文獻(xiàn)

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［3］劉開(kāi)強(qiáng)，彭偉．計(jì)算長(zhǎng)度系數(shù)法在框架穩(wěn)定分析中的運(yùn)用［J］．四川建筑科學(xué)研究，2007，33（3）：36-39.

［4］郭彥林，鄧科，林冰．梭形柱的穩(wěn)定性能及設(shè)計(jì)方法研究［J］．工業(yè)建筑，2007，３７（７）：９２-９５.