本文選題：低矮建筑 + 圍護(hù)結(jié)構(gòu)��； 參考：《北京交通大學(xué)》2017年碩士論文

【摘要】：風(fēng)災(zāi)害對建筑物的損壞非常嚴(yán)重,尤其是對低矮建筑圍護(hù)結(jié)構(gòu)的損壞更為嚴(yán)重,所以研究低矮房屋圍護(hù)結(jié)構(gòu)的抗風(fēng)設(shè)計十分重要,圍護(hù)結(jié)構(gòu)抗風(fēng)設(shè)計的關(guān)鍵是準(zhǔn)確確定圍護(hù)結(jié)構(gòu)設(shè)計風(fēng)荷載。為了準(zhǔn)確的進(jìn)行低矮房屋圍護(hù)結(jié)構(gòu)的抗風(fēng)設(shè)計,有必要參考國外規(guī)范和試驗數(shù)據(jù)。因此本文在介紹了低矮房屋圍護(hù)結(jié)構(gòu)風(fēng)荷載設(shè)計理論的基礎(chǔ)上,從以下幾個方面進(jìn)行了研究:(1)提出了建議低矮房屋圍護(hù)結(jié)構(gòu)風(fēng)荷載設(shè)計采用的標(biāo)準(zhǔn)公式,以標(biāo)準(zhǔn)公式為基礎(chǔ),對比了中國、美國和日本三國規(guī)范風(fēng)荷載計算公式中的系數(shù),包括風(fēng)向折減系數(shù)、面積折減系數(shù)、風(fēng)壓系數(shù)極值。其中重點對比了三國規(guī)范對風(fēng)壓系數(shù)極值的規(guī)定,并分析了各國規(guī)范之間發(fā)生差異的原因,指出了我國荷載規(guī)范存在的問題,提出了改進(jìn)和完善我國荷載規(guī)范圍護(hù)構(gòu)件風(fēng)荷載規(guī)定的具體建議。(2)基于UWO(The University of Western Ontario)數(shù)據(jù)庫的風(fēng)洞試驗數(shù)據(jù)分析了低矮雙坡屋面房屋表面平均風(fēng)壓系數(shù)、脈動風(fēng)壓系數(shù)以及極值風(fēng)壓系數(shù)的分布特征,并研究了建筑物屋面坡度對低矮雙坡屋面房屋風(fēng)壓系數(shù)分布的影響。(3)把由數(shù)據(jù)庫得到的低矮雙坡屋面房屋全風(fēng)向風(fēng)壓系數(shù)極值和中美日規(guī)范中規(guī)定的低矮雙坡屋面圍護(hù)結(jié)構(gòu)風(fēng)壓系數(shù)極值做了對比,驗證了中美日三國規(guī)范風(fēng)壓系數(shù)極值取值的合理性,并指出了我國規(guī)范的不足,提出了修改建議。
[Abstract]:The damage of the wind disaster to the building is very serious, especially the damage to the low building enclosure structure is more serious, so it is very important to study the wind resistance design of the low building enclosure structure. The key to the wind resistance design of the enclosure is to determine the wind load of the enclosure structure accurately. In order to accurately carry out the wind resistance of the low house enclosure structure. It is necessary to refer to the foreign norms and test data. Therefore, based on the introduction of the theory of wind load design for low housing enclosure structure, this paper studies the following aspects: (1) a standard formula is proposed for the design of wind load in low housing enclosure structure, based on the standard formula, compared with China, the United States and Japan. The coefficient in the formula of wind load calculation in the Three Kingdoms, including wind direction reduction coefficient, area reduction coefficient, and the extreme value of wind pressure coefficient, is used to compare the rules of the Three Kingdoms to the extreme value of the wind pressure coefficient, and analyze the reasons for the difference between the norms of various countries, point out the existing problems of the load standard in our country, and put forward the improvement and perfection of me. The specific suggestions on the regulation of wind load on retaining members are regulated by the state load. (2) based on the wind tunnel test data of the UWO (The University of Western Ontario) database, the average wind pressure coefficient, the fluctuating wind pressure coefficient and the distribution characteristics of the extreme pressure coefficient are analyzed, and the slope of the building roof to low double slope is studied. The influence of wind pressure coefficient distribution of roofing houses. (3) comparing the extreme value of wind pressure coefficient of low double slope roofing house with low double slope roof and the extreme pressure coefficient of low double slope roof enclosure structure stipulated in China and America and Japan standard, the rationality of the extreme value of the standard wind pressure system in the three countries of China and the United States and Japan is verified, and the regulations of our country are pointed out. The deficiency of fan was put forward, and the suggestion of revision was put forward.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TU312.1

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