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利用加強層調(diào)節(jié)框筒結(jié)構(gòu)核心筒彎矩
徐培福,黃吉鋒,史建鑫
摘 要

(中國建筑科學(xué)研究院, 北京 100013

 

[摘要]高層框架核心筒結(jié)構(gòu)中的加強層,一方面可以增大結(jié)構(gòu)抗側(cè)剛度、控制結(jié)構(gòu)位移,另一方面還可以調(diào)節(jié)傾覆彎矩在核心筒和外框之間的分配比例,減小核心筒的傾覆彎矩。首先研究了加強層位置對于核心筒彎矩的影響規(guī)律,得出了利用加強層調(diào)整核心筒彎矩的基本概念;其次探討了如何通過給定的核心筒彎矩分布來反推加強層的位置,給出了顯式的遞推公式。算例表明,這些概念和公式是合理的,對于帶加強層的框筒結(jié)構(gòu)的核心筒彎矩調(diào)整,具有參考意義。

 

[關(guān)鍵詞]框架核心筒結(jié)構(gòu); 加強層; 核心筒; 傾覆彎矩

 

中圖分類號:TU318.2, TU375       文獻標識碼:A        文章編號:1002-848X(2015)08-0001-07

 

Regulation of corewall overturning moment of framecorewall structure by strengthened storey

Xu Peifu,Huang Jifeng, Shi Jianxin

 (China Academy of Building Research, Beijing 100013, China)

 

Abstract:

The strengthened storey in highrise framecorewall structure, on one hand, usually plays the role to enhance the structural lateral stiffness and control the structural deformation, and on the other hand, has the function of regulating the distribution of overturning moment between the corewall and the peripheral frame and reduces the overturning moment of the corewall. Firstly, the influence law of the locations of strengthened stories upon overturning moment of corewall was studied to conclude the basic concept of regulating the corewall overturning moment by strengthened storey. Secondly, a series of recurrence formulas were given to determine the locations of strengthened stories by distribution of corewall overturning moment. The calculation results show that the conclusions and formulas are reasonable, providing reference for the regulation of overturning moment of corewall of framecorewall structures.

Keywords:framecorewall building structure strengthened storey; corewall; overturning moment

 

作者簡介:徐培福,研究員,博士生導(dǎo)師,Email:xupeifu36@126.com

 

                         參考文獻

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[4]徐培福,黃吉鋒,肖從真,. 帶加強層的框架核心筒結(jié)構(gòu)抗震設(shè)計中的幾個問題\[J\]. 建筑結(jié)構(gòu)學(xué)報,1999,204):110.

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