本文關鍵詞：倉儲結(jié)構(gòu)新型可拆換高延性梁-柱節(jié)點低周性能研究　出處：《東南大學》2015年碩士論文　論文類型：學位論文

  更多相關文章： 鋼貨架 分離式節(jié)點 新型可拆換高延性節(jié)點 低周反復荷載試驗 彎矩—轉(zhuǎn)角曲線 參數(shù)化分析

【摘要】：大型組裝式鋼貨架作為當今主流的倉儲結(jié)構(gòu)體系,在各個行業(yè)應用廣泛,具有廣闊的前景。但其采用的分離式柱卡節(jié)點在承載和耗能方面性能較差,使得貨架結(jié)構(gòu)抗震能力薄弱,存在極大的安全隱患。因此,對傳統(tǒng)節(jié)點進行改進和研究,提出新型的貨架梁-柱節(jié)點,對貨架結(jié)構(gòu)承載能力和抗震能力的提高具有重要的理論意義和工程應用價值。本文在傳統(tǒng)分離式節(jié)點的基礎上,提出一種合理高效的新型可拆換高延性梁-柱節(jié)點。新型節(jié)點結(jié)合快速插接和螺栓連接兩種節(jié)點的優(yōu)勢,大幅提升貨架節(jié)點的剛度和延性,有效增強其承載性能和抗震性能。同時,可拆換的節(jié)點形式能夠促進全鍍鋅貨架的推出,廢除傳統(tǒng)噴塑的防銹工藝,使貨架的加工綠色環(huán)保無污染,提高生產(chǎn)效率,大幅度提升倉儲結(jié)構(gòu)的結(jié)構(gòu)性能和可持續(xù)發(fā)展能力。本文結(jié)合不同的工藝做法,共研究兩類五種貨架梁-柱節(jié)點。首先,依據(jù)相關規(guī)范規(guī)定,設計和制定節(jié)點雙懸臂梁試驗裝置及方案,對五種節(jié)點進行低周反復荷載試驗研究；其次,通過試驗結(jié)果和現(xiàn)象的整理分析,對五種節(jié)點的承載性能和抗震性能進行詳細研究；接著,采用有限元對五種節(jié)點進行數(shù)值模擬,與試驗結(jié)果對比,進一步研究貨架梁-柱節(jié)點的性能,總結(jié)其主要影響因素；最后,對新型梁-柱節(jié)點進行參數(shù)化分析,研究各個因素的影響關系,為接下來的工程應用和研究改進提供參考依據(jù)。通過上述研究,主要結(jié)論如下：1.分離式節(jié)點的破壞模式由于立柱處對穿螺栓的設置而不同。傳統(tǒng)分離式節(jié)點的破壞模式為上、下卡舌撕裂脫落；增設立柱對穿螺栓后,卡舌受力和柱卡變形得到改善,破壞模式為橫梁梁端裂縫斷裂。2.整體式節(jié)點的失效破壞主要發(fā)生在橫梁與牛腿連接處,由于連接形式的不同而不同。新型整體式節(jié)點由于橫梁梁端螺栓脫出而失效破壞,采用對穿螺栓連接橫梁的整體式節(jié)點由于橫梁梁端對穿螺栓剪斷而失效,采用壓鉚螺母連接橫梁的整體式節(jié)點易因橫梁梁端壓鉚螺母脫落而失效。3.五種節(jié)點均有一定程度的滑移性,彎矩一轉(zhuǎn)角滯回曲線均有不同程度的“捏縮”。對于傳統(tǒng)分離式節(jié)點,立柱對穿螺栓的設置能夠有效改善正反向受力的不對稱性,節(jié)點在承載性能和抗震性能上均有顯著提高。4.整體式柱卡實現(xiàn)了節(jié)點的整體性,改善節(jié)點的受力性能,顯著提升節(jié)點的承載能力、延性以及能量耗散能力,對節(jié)點抗震性能的提高起到關鍵作用。5.橫梁和牛腿的連接方式對整體式節(jié)點的承載性能和抗震性能有重要影響。在橫梁梁端翼緣開螺紋孔,通過頂面和底面螺栓與其連接,使整體式節(jié)點在受力和抗震耗能等方面表現(xiàn)最好。
[Abstract]:Large assembled steel shelf storage structure as the current mainstream, widely used in various industries, and has broad prospects. But the separation column card node performance in bearing and energy dissipation is poor, the shelf structure seismic capacity is weak, there is a big security risk. Therefore, improvement and Research on the traditional node. A new shelf beam column node, which has important theoretical significance and application value for the bearing capacity and seismic capacity of shelf structure improved. Based on the traditional separated nodes, puts forward a new type of detachable reasonable and efficient for high ductility of beam column joints. The new node combined with rapid insertion and bolted two a node's advantage, significantly enhance the shelf node stiffness and ductility, effectively enhance the bearing capacity and seismic performance. At the same time, the node form of detachable zinc can promote the whole goods Frame of the launch, the abolition of the traditional spray antirust technology, the processing of green pollution-free shelf, improve production efficiency, greatly enhance the structure performance of storage structure and the ability of sustainable development. Based on the different techniques and practices, a total of two categories of five kinds of rack beam column node. First of all, according to the relevant regulations. The design and development of node double cantilever beam test device and program for cyclic test of five kinds of nodes; secondly, through experimental results and phenomenon analysis, bearing capacity and seismic performance of five kinds of nodes in detail; then, using the finite element numerical simulation of five kinds of nodes, comparison with the test results, further study on shelf performance of beam column joint, summarized the main influencing factors; finally, the parametric analysis model of beam column joint, influence of various factors, as the ground To provide reference for engineering application and research down improvement. Through the above research, the main conclusions are as follows: 1. the failure mode of separated nodes because of the post of bolt set and different. In the traditional failure mode split node on the card under the tongue torn off; set up by column on the wear bolt, tongue by card the force and deformation of column card is improved, failure mode of end crack fracture of.2. monolithic node for beam beam damage mainly occurs in the joint of beam and corbel, due to different connection forms and different. New type of integral node due to beam bolt failure and Liang Duan out of the whole node type, bolted beam due to wear beam beam end failure to wear bolt cut, using integral node pressure riveting nut connected beams due to beam beam end pressure riveting nut off failure of.3. five has a certain degree of node Slip, moment rotation hysteresis curves have different degrees of "pinch". For the traditional separate column node, can effectively improve the asymmetry of positive and negative stress on the wear bolt set, significantly improve the bearing capacity and node in the seismic performance of both.4. monolithic column card of the whole node. Improve the mechanical properties of the nodes, significantly enhance the bearing capacity of the node, the ductility and energy dissipation capacity, the seismic performance of nodes to improve the connection key role of.5. beam and corbel of integral node load have important influence on the performance and seismic performance. Threaded holes in the beam beam through the top and bottom flange. The bottom surface of the bolt is connected, so that the overall best performance in the joint force and energy dissipation and so on.

【學位授予單位】：東南大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TU391

【參考文獻】

相關期刊論文 前10條

1 成博;武振宇;;組裝式鋼貨架螺栓連接梁柱節(jié)點試驗[J];建筑科學與工程學報;2013年03期

2 邢巍巍;馮波;阮楊捷;徐郝;邱夢月;;鋼貨架梁柱節(jié)點性能研究綜述[J];江蘇建筑;2013年02期

3 李大偉;于建國;韓超;王晶;;貨架智能化配置設計系統(tǒng)及應用[J];計算機光盤軟件與應用;2012年24期

4 吳月明;呂志軍;楊建國;楊光輝;;梁-柱節(jié)點半剛性力學性能的有限元分析與驗證[J];機械設計與制造;2012年05期

5 楊娜;彭雄;楊慶山;;冷彎薄壁型鋼C型構(gòu)件滯回性能[J];土木建筑與環(huán)境工程;2012年02期

6 董軍;馬慶平;周偉;;輕鋼龍骨房屋足尺模型低周反復試驗[J];地震工程與工程振動;2011年05期

7 王拓;趙憲忠;陳以一;;組裝式鋼貨架結(jié)構(gòu)研究現(xiàn)狀[J];建筑鋼結(jié)構(gòu)進展;2010年06期

8 張衛(wèi)國;;托盤橫梁式鋼貨架結(jié)構(gòu)概述[J];物流技術(shù)與應用;2009年06期

9 石文龍;李國強;肖勇;葉志明;;半剛性連接梁柱組合節(jié)點低周反復荷載試驗研究[J];建筑結(jié)構(gòu)學報;2008年05期

10 張衛(wèi)國;;冷彎薄壁多孔貨架立柱的穩(wěn)定性分析與研究[J];建筑鋼結(jié)構(gòu)進展;2006年02期

相關碩士學位論文 前7條

1 王玉雷;低周反復荷載作用下混凝土框架邊節(jié)點性能試驗研究[D];哈爾濱工業(yè)大學;2010年

2 王健;翼緣板加強型節(jié)點低周反復荷載試驗研究[D];青島理工大學;2010年

3 黑偉偉;鋼框架蓋板加強型節(jié)點低周反復荷載試驗研究[D];青島理工大學;2010年

4 吳小敬;芯鋼管連接的方鋼管混凝土中節(jié)點低周反復荷載試驗研究[D];長安大學;2009年

5 李強;貨架立柱穩(wěn)定性分析與截面優(yōu)化設計[D];浙江工業(yè)大學;2009年

6 王鵬;冷彎薄壁型鋼結(jié)構(gòu)貨架試驗研究及有限元分析[D];南京理工大學;2006年

7 王海生;鋼纖維—型鋼混凝土梁柱節(jié)點在低周反復荷載作用下抗震性能試驗研究[D];湖南大學;2005年

，

本文編號：1391259