本研究主要針對梁腹板開孔(Web Opening)減弱式鋼結構梁柱接頭來進行耐震試驗，並利用有限元素分析探討其耐震與火害之行為。首先進行一組實尺寸既有之腹板雙長條型開孔接頭進行耐震試驗，探討其耐震能力，後經有限元分析驗證，此種改良式開孔設計接頭於試驗及模擬皆能有效將塑鉸遠離柱面，且變形達規範要求 4%弧度時之柱面抗彎矩強度超過梁斷面塑性彎矩 0.8 倍。單純藉由有限元素分析探討梁腹板有無開孔接頭在不同邊界條下受火害後之行為能力，火害分析主要分為三種型式，第一種為單純受火行為，第二種為受震後受火後行為及第三種為受火冷卻後受震行為。受震加載是根據梁端位移來進行控制，受火加載是根據 CNS 12514 規範之升溫曲線加溫於接頭梁下翼板處。單純受火情況下，分為兩種邊界條件，為防止梁柱接頭發生側邊偏轉而設置側撐對於僅受火並不會造成太大的挫屈現象；若無側撐且梁端 Y 向為自由端，有開孔接頭會較快發生挫屈現象，但挫屈沒有位於柱面附近翼板處，無開孔接頭雖較慢發生挫屈現象，但挫屈位於翼板靠近柱面處。受震後受火下，因有設置側撐，因此接頭變形對於梁端加載具有較大影響，有開孔接頭於開孔附近具有較大挫屈，無開孔接頭則是於靠近柱面處發生挫屈現象。受火冷卻後受震下，模擬結果為接頭承受火災後回歸常溫，再進行加載後，有開孔接頭相對於無開孔接頭仍具有將塑鉸遠離柱面的能力。本研究無採用流體力學模組，不考慮熱輻射現象，也無考慮施加使用性載重，僅針對鋼梁柱接頭進行表面加溫與梁端施加位移控制，藉以探討接頭單純受溫度與位移的變化。

In this study, having seismic test by steel beam-to-column connections with web
openings and discuss the seismic and fire behavior of steel beam-to-column connections by finite element methods (FEM). First, conducting seismic test by a realsize of beam-to-column connections with web double-strip openings and explore its seismic capacity. Then, this kind of improved connections can effectively keep the plastic hinge away from the column surface in the test and simulation and the deformation meets specification requirements of the column bending moment strength exceeds 0.8 times of the beam plastic bending moment at 4% drift angel. The finite element analysis is used to explore the behavior ability of the beam web with or without opening connections after being fired under different boundary conditions. The fire analysis is mainly divided into three types. The first type is pure fire behavior, and the second type is the behavior after being exposed to fire after an earthquake, and the third is the behavior of being exposed to earthquake after being cooled by fire. The seismic loading is controlled according to the beam end
displacement, and the fire loading is heated at the lower flange of the beam according to the heating curve of the CNS 12514 standard. In the case of simple fire, there are two kinds of boundary conditions. This study did not use fluid mechanics modules, did not consider the phenomenon of heat radiation, and did not consider the application of usable loads. Only giving the surface heating of the steel beam-column connections and the displacement control of the beam ends were used to explore the changes of the connections by temperature and displacement.

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