山东建筑大学学报
山東建築大學學報
산동건축대학학보
JOURNAL OF SHANDONG JIANZHU UNIVERSITY
2014年
3期
214-218,224
,共6页
王玉镯%范安宁%闫凯%傅传国
王玉鐲%範安寧%閆凱%傅傳國
왕옥탁%범안저%염개%부전국
型钢混凝土柱%高温下%极限承载力%简化计算公式
型鋼混凝土柱%高溫下%極限承載力%簡化計算公式
형강혼응토주%고온하%겁한승재력%간화계산공식
steel reinforced concrete column%under high temperature%ultimate bearing capacity%simplified calculation formula
高温作用下型钢混凝土柱的力学性能的有限元分析是进行其抗火性能设计研究的重要途径。基于型钢和混凝土材料在高温下的力学性能曲线,简化得到其计算模型,通过ABAQUS软件分析,研究了高温下型钢混凝土柱在不同时刻的温度场分布,根据分析得到的结果确定了柱截面等温曲线的位置,结合常温下型钢混凝土柱的计算公式对高温下的计算公式进行了研究,简化得到了高温下型钢混凝土柱极限承载力的计算公式,根据已有的试验资料对所推导型钢混凝土柱简化计算方法的正确性进行了分析,结果表明:利用文中简化的计算公式计算所得的型钢混凝土柱的弯矩值为865 kN,轴力值为132 kN·m,与其试验值具有一定的吻合度。
高溫作用下型鋼混凝土柱的力學性能的有限元分析是進行其抗火性能設計研究的重要途徑。基于型鋼和混凝土材料在高溫下的力學性能麯線,簡化得到其計算模型,通過ABAQUS軟件分析,研究瞭高溫下型鋼混凝土柱在不同時刻的溫度場分佈,根據分析得到的結果確定瞭柱截麵等溫麯線的位置,結閤常溫下型鋼混凝土柱的計算公式對高溫下的計算公式進行瞭研究,簡化得到瞭高溫下型鋼混凝土柱極限承載力的計算公式,根據已有的試驗資料對所推導型鋼混凝土柱簡化計算方法的正確性進行瞭分析,結果錶明:利用文中簡化的計算公式計算所得的型鋼混凝土柱的彎矩值為865 kN,軸力值為132 kN·m,與其試驗值具有一定的吻閤度。
고온작용하형강혼응토주적역학성능적유한원분석시진행기항화성능설계연구적중요도경。기우형강화혼응토재료재고온하적역학성능곡선,간화득도기계산모형,통과ABAQUS연건분석,연구료고온하형강혼응토주재불동시각적온도장분포,근거분석득도적결과학정료주절면등온곡선적위치,결합상온하형강혼응토주적계산공식대고온하적계산공식진행료연구,간화득도료고온하형강혼응토주겁한승재력적계산공식,근거이유적시험자료대소추도형강혼응토주간화계산방법적정학성진행료분석,결과표명:이용문중간화적계산공식계산소득적형강혼응토주적만구치위865 kN,축력치위132 kN·m,여기시험치구유일정적문합도。
The finite element analysis of mechanics performance of steel reinforced concrete columns under high temperature is an important method for the research on fire resistance design.Based on the mechanical property curve of steel and concrete materials under high temperature,simplify the calculation model,Based on the test curve of steel and concrete under high temperature,the simplified model was obtained.The temperature field distribution of steel reinforced concrete columns in different times was analyzed by ABAQUS.According to the results of the analysis,combined with the calculation formula of steel concrete column in normal temperature,simplified calculation formula of high temperature were studied,and the formula of ultimate bearing capacity was obtained of steel reinforced concrete column under high temperature. The existing experimental data proved the correctness of the simplified calculation method of steel reinforced concrete column, providing theoretical basis for engineering design and application.The result showed:the moment of steel veinforcecl conovete column calculated by the formula was 865 kN,the exial force was 132 kN·m, they had a certain degree of agreement with the experimental value.