Influences of rib stiffeners on hysteretic behavior of end-plate connections;
加勁肋對端板連接滯回性能的影響
L-joints without rib stiffener are semi-rigid connections.
采用簡化理論方法對L形圓管節(jié)點(diǎn)的強(qiáng)度和剛度進(jìn)行了分析,橫向正應(yīng)力的存在對節(jié)點(diǎn)域鋼管具有“捏合”作用,從而降低了節(jié)點(diǎn)的剛度和承載能力,無加勁肋的L形管節(jié)點(diǎn)屬于半剛性連接。
Among them, four end plates are reinforced with rib stiffeners, which are in alignment with beam webs, and constant axial compression force is applied at the end of seven columns during the test.
為了研究鋼框架中梁柱端板連接節(jié)點(diǎn)的滯回性能,本文進(jìn)行了8個節(jié)點(diǎn)試件的循環(huán)加載試驗(yàn),其中有7個試件的柱端施加了軸向壓力,4個端板設(shè)置了加勁肋。
Static behavior analysis of top and seat angle with stiffener connection beam-to-column joints;
帶加勁肋的頂?shù)捉卿撨B接梁柱節(jié)點(diǎn)的靜力性能分析
The stiffeners that were mounted in compression zone can decrea.
發(fā)現(xiàn):端板厚度對節(jié)點(diǎn)的初始轉(zhuǎn)動剛度影響較大,載荷比對轉(zhuǎn)角的影響較大;設(shè)置承壓加勁肋可明顯減小節(jié)點(diǎn)域內(nèi)的塑性應(yīng)變,改善柱腹板的受力狀態(tài),提高柱穩(wěn)定性,從而保證鋼框架整體的穩(wěn)定性。
FEA models were established to make analysis on the influence of wall panel,horizontal rib stiffener and inside steadying bar to mechanics properties of one typical flue gas duct in fuel electric plant.
通過建立火力發(fā)電廠鋼煙道的有限元計(jì)算模型,對煙道壁板、煙道橫向加勁肋和有無內(nèi)支撐對鋼煙道力學(xué)性能的影響進(jìn)行了計(jì)算分析,并對設(shè)置縱向加勁肋的作用進(jìn)行了深入討論。
During the analysis, two parameter was considered:the depth and length of stiffening rib.
利用有限元軟件分析輸電鐵塔8個地腳螺栓塔腳板受力過程,討論其破壞機(jī)理、破壞準(zhǔn)則,介紹了加勁肋厚度、長度等參數(shù)變化對其承載力的影響,在此基礎(chǔ)上提出一些設(shè)計(jì)建議。
The paper analyses the stability of rib slab on method of energy,the formula of longitudinal critical force is deduced,and rational arrangement of stiffening rib is discussed.
利用能量法分析了加肋平板的穩(wěn)定問題 ,推導(dǎo)了縱向臨界力的計(jì)算公式 ,并探討加勁肋的合理布置 。
The steel silo wall is a typical cylindrical shell structure which is very sensitive to the boundary conditions, so setting up stiffening rib on the silo wall can improve the stability effectively, but it is the lack of related research.
再采用數(shù)值分析方法,包括線性特征值屈曲分析、幾何非線性分析及幾何、材料雙重非線性分析,研究了不同加勁肋對鋼筒倉倉壁穩(wěn)定性能的影響。