火災荷載 的英文怎麼說
中文拼音 [huǒzāihézǎi]
火災荷載
英文
fire load-
It provides strong basement for the research of design. the method of structure analysis commended by this paper is based on nonlinear finite - element, diathermanous and elasticity mechanics. it found the model of a steel beam pressed by gravity and temperature in the condition of indoor fire
本文提出的結構分析法是在大量參數分析的基礎上,以非線性有限元、傳熱學及彈性力學為基礎,利用ansys軟體,建立一個鋼框架梁在室內局部火災條件下的傳熱模型與在重力荷載及溫度荷載共同作用下的受力模型。Fire load density
火災荷載密度The fire load of underground commercial building is very large and controlling fire is difficult
同時,地下商業建築的火災荷載大,且地下商業建築的防火救火工作具有相當大的困難。In this paper, the fire load and fire source location was discussed for subway fire based on the former research, arid the conclusions are drawn for the further research
在綜合前人研究的基礎上,對地鐵火災場景中需要確定的火災荷載和起火點位置進行了初步探討,並給出了分析結果。Analyses the smoke characteristics in the development of fire and obtains its changing curves. according to different fire loads, studies the changing relation between the critical velocity and fire intensity
摘要分析了地鐵火災煙氣特性隨火災發展過程的變化情況,得到了煙氣特性變化曲線。針對不同的火災荷載,研究了臨界風速隨火災強度的變化關系。The parameters in the study included the fire duration time, the axial load level, the section type and the strengthen method. the ultimate lateral strength, flexural stiffness, dissipated energy and ductility of the columns were compared and analyzed. ( 2 ) based on the stress - strain relations for steel and concrete after high temperature and the temperature field in the structural member, fiber - based model was developed to calculate the hysteretic moment ( m ) versus curvature ( ) relations and the lateral load ( p ) versus lateral displacement ( ? )
( 2 )在確定高溫后鋼材和混凝土在往復荷載作用下的應力-應變關系以及構件截面溫度場的基礎上,考慮力-溫度-時間作用路徑,建立了火災后鋼管混凝土壓彎構件滯回性能的理論分析模型,對火災后鋼管混凝土構件的彎矩-曲率( m - ) 、荷載-變形( p - )滯回關系曲線進行了分析,計算結果與實驗結果總體上吻合較好。In the calculations of ultimate bearing capacity, the section of rc beam was divided into the elastic zone and the plastic zone based on the fire temperature field of the beam ' s section, the equivalent - floor - live - load was presented to describe the weakening of the bearing capacity of structure members in fire, the correlation expressions were established
摘要根據梁截面火災溫度場,將梁截面混凝土分為彈性區和塑性區2部分計算火災場梁極限承載力,並採用等效樓面活荷載描述火災場高溫對梁極限承載力的削弱,推導了相關的計算公式。It can be seen that fire growth and heat release rate curve can be obtained through the calculation of fire load and the estimation of fire spread, which can provide the input for the latter work and enhance the efficiency of fire protection analysis observably
可以看出,根據火災荷載的計算和火災蔓延可能性的討論,得到火災發展的變化情況和熱釋放速率曲線,能夠為之後的工作做好前期準備,同時顯著提高這項工作的效率。After analyze the foundation of the current national code ( code for fire protection design of tall buildings gb500045 - 95 ) through experiments and fire simulations, the author has found that there are some limitations on the use of this national code for the designing of smoke management system in an atrium. this paper has been discovered that it is not enough when using the smoke layer interface height as a criterion to make an assessment on the safety rate in a building fire, or to calculate the egress time
通過上述實驗研究和數值模擬研究,發現當採用我國現行的《高層民用建築防火設計規范》 ( gb50045 - 95 )來指導中庭建築的排煙系統設計時,在本文設計的火災場景條件下(參照實際的中庭商場調研情況,即火災載荷密度較大時) ,對于本文實驗研究中所採用的相似模型及原型建築,無論是採用自然排煙或者是採用機械排煙,其排煙量皆不足。3 、 the model synthesizing the occur probability and the region fire load is established and the means to confirm the parameter is introduced, then the thesis validates and analyzes the model using a example and the model is used in research of post - earthquake fire in actual cities
3 、建立了綜合考慮火災發生概率和區域火災荷載密度的分析模型,給定了參數的取值方法,通過實際算例對該模型進行分析驗證,並應用到實際城市的地震次生火災危險性區劃研究中。Fire resistance of reinforced concrete columns is analyzed theoretically in this dissertation, combined with study on invalidation mechanism and control of reinforced concrete structures subjected to fire, which is one of the main projects of construction science and technology in hunan province. the main contents studied in this dissertation are summarized as follows. ( 1 ) the most familiar thermal and mechanical behaviors of concrete and reinforcing steel bar at elevated temperature over the world are summarized and compared
本文結合湖南省建設廳重點資助項目「火災荷載作用下鋼筋混凝土結構的失效機理與控制研究」 ,對鋼筋混凝土柱的抗火性能進行了理論分析與研究,主要內容如下: ( 1 )對國內外使用較多的鋼筋、混凝土的熱工性能及熱力本構模型進行了總結和對比分析,找出了我國與其它國家分析時所使用模型的相同及不同之處。( 3 ) using the finite element program abaqus / standard 6. 4, theoretical model was built to analyze the load versus deformation relationship curves. furthermore, the stress distributions in the core concrete during the loading, the composite interaction between the steel tube and the concrete were studied. these analysis processes were carried out under two different conditions, namely at the ambient temperature and after exposure to fire
( 3 )利用有限元軟體abaqus / standard6 . 4 ,建立了火災后鋼管混凝土構件的理論分析模型,對火災后軸壓、壓彎構件的荷載-變形關系曲線進行了分析,比較了常溫和火災后構件在受力過程中截面上的應力分佈狀態以及鋼管與核心混凝土之間的相互作用,較深入地認識了火災后鋼管混凝土構件的受力特性。分享友人