本文關(guān)鍵詞： 輪輻式交叉索結(jié)構(gòu) 結(jié)構(gòu)構(gòu)形 預(yù)應(yīng)力態(tài)分析 受力特性　出處：《土木工程學(xué)報(bào)》2017年09期 　論文類型：期刊論文

【摘要】：以傳統(tǒng)輪輻式索結(jié)構(gòu)為基礎(chǔ),提出一類輪輻式交叉索結(jié)構(gòu),該類結(jié)構(gòu)由雙層外環(huán)壓梁、雙層內(nèi)環(huán)拉索、內(nèi)環(huán)撐桿、徑向交叉布置的徑向承重索、徑向穩(wěn)定索及它們之間的聯(lián)系索桿組成。采用徑向索交叉布置的新形式可減小結(jié)構(gòu)層高度,改善結(jié)構(gòu)整體抗扭剛度,同時(shí)形成的"空間谷脊效應(yīng)"便于屋面組織排水。根據(jù)內(nèi)環(huán)撐桿布置方式的不同,輪輻式交叉索結(jié)構(gòu)又可分為豎撐桿型和人字撐桿型兩種不同構(gòu)形的輪輻式交叉索結(jié)構(gòu)�；诠�(jié)點(diǎn)平衡方程,對提出的兩種輪輻式交叉索結(jié)構(gòu)進(jìn)行預(yù)應(yīng)力態(tài)分析,推導(dǎo)出輪輻式交叉索結(jié)構(gòu)預(yù)應(yīng)力態(tài)內(nèi)力的計(jì)算公式。此外還將輪輻式交叉索結(jié)構(gòu)的預(yù)應(yīng)力態(tài)受力特性與傳統(tǒng)輪輻式索結(jié)構(gòu)進(jìn)行對比,并考慮不同內(nèi)環(huán)結(jié)構(gòu)高度、內(nèi)外環(huán)幾何中心高差等幾何參數(shù)下結(jié)構(gòu)的自應(yīng)力分布情況。結(jié)果表明,輪輻式交叉索結(jié)構(gòu)具有結(jié)構(gòu)高度低、結(jié)構(gòu)剛度大、受力合理等特點(diǎn),在大型體育場等建筑中有很好的工程應(yīng)用前景。
[Abstract]:Based on the traditional spoke cable structure, a class of spoke cross cable structure is proposed. The structure consists of double external ring compression beam, double inner ring cable, inner ring bracing, radial cross arrangement of radial load bearing cable. The structure of radial stable cables and their relative cable rods. The new form of radial cable cross arrangement can reduce the height of the structure layer and improve the overall torsional stiffness of the structure. The "spatial valley ridge effect" formed at the same time is convenient for the drainage of roof tissue. The spoke cross cable structure can be divided into two different configurations of vertical bracing and herringbone bracing. Based on the node equilibrium equation, the prestressing state of the two kinds of spoke crossover cable structures is analyzed. In addition, the prestressing force characteristics of the spoke cross cable structure are compared with those of the traditional spoke cable structure, and the height of the inner ring structure is considered. The results show that the spoke cross cable structure has the characteristics of low height, large stiffness and reasonable force. It has a good prospect of engineering application in large-scale stadiums and other buildings.
【作者單位】： 同濟(jì)大學(xué);中國建筑科學(xué)研究院;
【基金】：“十三五”國家重點(diǎn)研發(fā)計(jì)劃(2016YFC0700700)
【分類號】：TU399
【正文快照】： 引言輪輻式索結(jié)構(gòu)(又稱環(huán)形索桁結(jié)構(gòu))是一種受力合理、簡潔高效、自平衡的索桿張力結(jié)構(gòu)體系,它是依據(jù)張拉整體結(jié)構(gòu)理念參照自行車車輪輻條結(jié)構(gòu)改進(jìn)而成的。輪輻式索結(jié)構(gòu)主要由外環(huán)壓梁、內(nèi)環(huán)拉索和連接二者的徑向索結(jié)構(gòu)單元組成,其中徑向索結(jié)構(gòu)單元通常由徑向承重索、徑向穩(wěn)定，

本文編號：1456435