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（天津大學(xué)建筑工程學(xué)院，天津 300072）

［摘要］以傳統(tǒng)的鋼筋混凝土屋面板為基礎(chǔ)，結(jié)合弦支結(jié)構(gòu)（如張弦梁結(jié)構(gòu)），提出了一種新型的預(yù)應(yīng)力鋼-混凝土復(fù)合屋面結(jié)構(gòu)，即弦支混凝土集成屋蓋結(jié)構(gòu)。在對(duì)弦支混凝土集成屋蓋結(jié)構(gòu)進(jìn)行較為系統(tǒng)的研究分析后，給出了詳細(xì)構(gòu)成及實(shí)現(xiàn)方法，提出了預(yù)應(yīng)力設(shè)計(jì)方法，還給出了其中的預(yù)制鋼筋混凝土板宜采用的形式和設(shè)計(jì)方法；弦支混凝土集成屋蓋結(jié)構(gòu)的自振頻率分布相對(duì)較為密集，基頻相對(duì)較??；在動(dòng)力作用下的變形以上下振動(dòng)為主，較少出現(xiàn)扭轉(zhuǎn)等復(fù)雜變形。

［關(guān)鍵詞］張弦梁；預(yù)應(yīng)力；復(fù)合屋面結(jié)構(gòu)；弦支混凝土集成屋蓋結(jié)構(gòu)

Analysis on basic characteristics of cable supported concrete roof structure

Chen Zhihua, Qiao Wentao

(School of Civil Engineering, Tianjin University, Tianjin 300072, China)

Abstract:Based on the traditional reinforced concrete roof slab and the cable supported structures such as the beam string structure, a new-style prestressed compound steel-concrete roof structure, cable supported concrete roof structure, was put forward. The systemic research on cable supported concrete roof structure was carried out. The detailed fabrication, the realization method and the prestressed design method of cable supported concrete roof structure were put forward. The proper pattern and design method of the precast reinforced concrete slab were suggested. The results indicate that the natural frequencies of cable supported concrete roof structure are close to one another, and the first naturad frequency is low under dynamic force. The deformation of the structure are mainly global vibration up and down, and the complex deformation such as torsion hardly occurs.

Keywords:beam string structure; prestress; compound roof structure; cable supported concrete roof structure  

新世紀(jì)優(yōu)秀人才支持計(jì)劃（NCET）。

作者簡介：陳志華，教授，博士生導(dǎo)師，Email：zhchen@tju.edu.cn。

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