本文選題：倉(cāng)儲(chǔ)上蓋物業(yè) + 吊車(chē)荷載��； 參考：《武漢理工大學(xué)》2013年博士論文

【摘要】：上蓋物業(yè)因能有效地提高城市土地利用率,并能帶來(lái)廣闊的社會(huì)、經(jīng)濟(jì)效益,近年來(lái)得到了快速的發(fā)展。然而,列車(chē)及吊車(chē)運(yùn)行引起上蓋物業(yè)結(jié)構(gòu)的振動(dòng)舒適度和噪聲問(wèn)題已成為制約其發(fā)展的主要瓶頸之一。國(guó)內(nèi)外學(xué)者在列車(chē)引起環(huán)境振動(dòng)的分析模型、傳播規(guī)律以及對(duì)建筑物的影響方面作了大量的研究與實(shí)測(cè)工作,并已取得了豐碩的研究成果。而吊車(chē)這種大型設(shè)備運(yùn)行引起建筑物的振動(dòng)及噪聲問(wèn)題鮮有研究。研究發(fā)現(xiàn),吊車(chē)運(yùn)行引起的振動(dòng)及噪聲雖然不會(huì)產(chǎn)生結(jié)構(gòu)安全問(wèn)題,但會(huì)影響建筑物內(nèi)用戶的工作效率和生活質(zhì)量,從而降低結(jié)構(gòu)的適用性能。因此,能否有效地控制因吊車(chē)運(yùn)行引起的上蓋物業(yè)的振動(dòng)和結(jié)構(gòu)噪聲問(wèn)題,實(shí)質(zhì)上關(guān)系到這一特殊建設(shè)項(xiàng)目在城市建設(shè)中的發(fā)展和推廣。本文以某倉(cāng)儲(chǔ)上蓋物業(yè)為研究對(duì)象,通過(guò)現(xiàn)場(chǎng)實(shí)測(cè)與數(shù)值分析,對(duì)吊車(chē)荷載進(jìn)行了系統(tǒng)研究并建立了基于舒適度評(píng)價(jià)的精細(xì)化有限元分析模型,并針對(duì)該倉(cāng)儲(chǔ)上蓋物業(yè)結(jié)構(gòu)特點(diǎn),對(duì)吊車(chē)運(yùn)行引起的振動(dòng)響應(yīng)及結(jié)構(gòu)噪聲進(jìn)行了系統(tǒng)研究。 論文主要工作如下： 1、綜合國(guó)內(nèi)外的文獻(xiàn)資料,對(duì)各國(guó)振動(dòng)舒適度和結(jié)構(gòu)噪聲規(guī)范進(jìn)行了歸納和總結(jié),確定了適用于上蓋物業(yè)吊車(chē)運(yùn)行引起的振動(dòng)舒適度和結(jié)構(gòu)噪聲評(píng)價(jià)的標(biāo)準(zhǔn),并對(duì)吊車(chē)荷載引起該上蓋物業(yè)的振動(dòng)舒適度及結(jié)構(gòu)噪聲進(jìn)行了評(píng)價(jià)； 2、對(duì)基于舒適度的結(jié)構(gòu)計(jì)算模型進(jìn)行了研究,提出了強(qiáng)振與弱振在模型簡(jiǎn)化方法上的差異。考慮非結(jié)構(gòu)構(gòu)件(包括填充墻、裝飾面層等)對(duì)結(jié)構(gòu)的剛度和阻尼的影響,根據(jù)工程實(shí)際情況建立了精細(xì)化有限元計(jì)算模型； 3、建立吊車(chē)—軌道梁的計(jì)算模型,提取吊車(chē)荷載作用下軌道梁支座處的支座反力計(jì)算結(jié)果,以此結(jié)果作為外荷載輸入到精細(xì)化有限元模型中,計(jì)算上部結(jié)構(gòu)房間內(nèi)的振動(dòng)響應(yīng),并與實(shí)測(cè)數(shù)據(jù)對(duì)比分析,驗(yàn)證精細(xì)化有限元模型的有效性； 4、采用經(jīng)驗(yàn)公式對(duì)該結(jié)構(gòu)噪聲進(jìn)行了預(yù)測(cè)并與實(shí)測(cè)結(jié)果進(jìn)行對(duì)比,考察經(jīng)驗(yàn)公式的適用性,在此基礎(chǔ)上,根據(jù)工程實(shí)際情況建立了聲學(xué)有限元模型,采用Virtual.Lab Acoustics聲學(xué)軟件計(jì)算得到結(jié)構(gòu)振動(dòng)和聲學(xué)特征,從而為同類(lèi)結(jié)構(gòu)的設(shè)計(jì)提出建議及改進(jìn)方案； 5、在精細(xì)化有限元模型建立中將結(jié)構(gòu)底層立柱由鋼柱換為鋼筋混凝土柱,并研究了兩種不同材料的立柱對(duì)該倉(cāng)儲(chǔ)上蓋物業(yè)振動(dòng)響應(yīng)及噪聲問(wèn)題的影響,研究了此類(lèi)結(jié)構(gòu)的減振降噪措施。 最后,在總結(jié)全文工作的基礎(chǔ)上,對(duì)下一步的研究提出了建議和展望。 本文主要?jiǎng)?chuàng)新點(diǎn)如下： 1、本文首次對(duì)倉(cāng)儲(chǔ)上蓋物業(yè)的振動(dòng)舒適度及結(jié)構(gòu)二次噪聲問(wèn)題進(jìn)行了初步的研究,以國(guó)內(nèi)第一個(gè)倉(cāng)儲(chǔ)上蓋物業(yè)為研究對(duì)象進(jìn)行了現(xiàn)場(chǎng)實(shí)測(cè)及理論分析； 2、提出了基于振動(dòng)舒適度的結(jié)構(gòu)精細(xì)化模型的概念,采用有限元法實(shí)現(xiàn)了結(jié)構(gòu)振動(dòng)舒適度及結(jié)構(gòu)二次噪聲的模擬與分析； 3、根據(jù)理論分析及現(xiàn)場(chǎng)實(shí)測(cè),得出了對(duì)此類(lèi)上蓋物業(yè)鋼筋混凝土結(jié)構(gòu)是結(jié)構(gòu)選型時(shí)的首選,如采用鋼結(jié)構(gòu)則需加強(qiáng)結(jié)構(gòu)的減、隔振設(shè)計(jì),而在目前的條件下采用混凝土結(jié)構(gòu)(至少底層采用鋼筋混凝土結(jié)構(gòu))是一種有效的方法,從而為此類(lèi)結(jié)構(gòu)的設(shè)計(jì)提出了有效地建議。
[Abstract]:The upper cover property has been developed rapidly in recent years because it can effectively improve the urban land use rate and bring great social and economic benefits in recent years. However, the vibration comfort and noise of the upper cover property structure caused by the train and the crane have become one of the main bottlenecks that restrict its development. The domestic and foreign scholars have caused the environment in the train. The analysis model of vibration, the law of propagation and the effect on the building have been studied and measured, and a lot of research results have been obtained. But the problem of vibration and noise caused by the crane is rarely studied. It is found that the vibration and noise caused by the crane transportation will not produce the structure. The safety problem will affect the working efficiency and the quality of life of the users in the building, thus reducing the application performance of the structure. Therefore, it is essential to effectively control the vibration and structural noise of the upper cover property caused by the operation of the crane, which is essentially related to the development and promotion of this special construction project in the city construction. The storage cover property is the research object. Through the field measurement and numerical analysis, the crane load is systematically studied and the finite-element analysis model based on the comfort evaluation is established, and the vibration response and structural noise caused by the crane running are systematically studied in view of the property structure characteristics of the upper cover.
The main work of this paper is as follows:
1, based on the literature and data at home and abroad, the vibration comfort and structural noise standards of various countries are summarized and summarized. The standard of vibration comfort and structural noise evaluation for the upper cover property crane operation is determined, and the vibration comfort and structural noise of the upper cover property are evaluated by the crane load.
2, the structural calculation model based on comfort is studied, and the difference between strong vibration and weak vibration is proposed. The influence of unstructured components (including filling wall, decorative surface layer and so on) on the stiffness and damping of the structure is considered, and a finite-element calculation model is set up according to the actual situation of the engineering.
3, the calculation model of the crane rail beam is established, and the calculation results of the support counterforce at the bearing of the rail beam under the load of the crane are extracted. As the result, the vibration response of the superstructure room is calculated as the external load into the finite-element model, and the effectiveness of the finite-element model is verified by the comparison with the measured data.
4, an empirical formula is used to predict the noise of the structure and compare with the measured results. The applicability of the empirical formula is investigated. On this basis, the acoustic finite element model is set up according to the actual situation of the engineering. The structural vibration and acoustic characteristics are calculated by Virtual.Lab Acoustics acoustic software, thus the design of the same kind of structure is proposed. Suggestions and improvements;
5, in the finite-element model, the bottom column of the structure is changed from steel column to reinforced concrete column, and the influence of two different materials on the vibration response and noise problem of the property is studied, and the measures of vibration and noise reduction of this kind of structure are studied.
Finally, on the basis of summarizing the whole work, suggestions and prospects for further research are put forward.
The main innovations in this paper are as follows:
1, this paper first studies the vibration comfort of the storage upper cover and the two noise of the structure, and takes the first warehouse cover property as the research object in the field and carries out the field measurement and theoretical analysis.
2, the concept of structural refinement model based on vibration comfort is proposed. The finite element method is used to simulate and analyze the vibration comfort of the structure and the two noise of the structure.
3, according to the theoretical analysis and field measurement, it is concluded that the reinforced concrete structure of this kind of upper cover is the first choice for the structure selection. For example, the use of steel structure should strengthen the structure reduction and vibration isolation design, and it is an effective method to adopt the concrete structure at the present condition (at least the bottom of the reinforced concrete structure) under the present conditions. An effective proposal for the design of the structure is put forward.

【學(xué)位授予單位】：武漢理工大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：TU311.3;U211.3

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