本文選題：框架-核心筒混合結(jié)構(gòu)　切入點(diǎn)：擬速度譜　出處：《西安建筑科技大學(xué)》2013年碩士論文

【摘要】：高層建筑框架-核心筒混合結(jié)構(gòu)是目前我國高層建筑中一種主要的結(jié)構(gòu)形式,其地震破壞機(jī)理和抗震性能是國內(nèi)外研究的熱點(diǎn)；基于能量的地震反應(yīng)分析方法與抗震設(shè)計(jì)方法概念明確、形式簡單,并考慮了結(jié)構(gòu)累積滯回耗能以及由地震動(dòng)持續(xù)時(shí)間引起的結(jié)構(gòu)構(gòu)件累積損傷破壞因素。目前,針對(duì)高層框架-核心筒混合結(jié)構(gòu)的地震能量反應(yīng)分析研究還很少,開展基于能量方法的高層框架-核心筒混合結(jié)構(gòu)地震反應(yīng)分析和抗震性能評(píng)估研究具有重要的理論意義。為此本文做了以下研究工作。 首先通過振型分解理論推導(dǎo)了彈性多自由度體系總輸入能量方程,證明了多自由度體系總輸入能量可由對(duì)應(yīng)多階等效單自由度體系的總輸入能量之和來表達(dá),通過大量的時(shí)程分析算例論證了此方法的正確性。其次,基于MPA方法與彈性擬速度譜、現(xiàn)有彈塑性總輸入能量譜建立了高層框架-核心筒混合結(jié)構(gòu)彈性與彈塑性總輸入能計(jì)算方法,通過大量彈塑性時(shí)程分析說明了按照本文方法可對(duì)框架-核心筒混合結(jié)構(gòu)彈性與彈塑性總輸入能做以較為精確的估計(jì)。研究表明,在計(jì)算彈性或彈塑性結(jié)構(gòu)總輸入能量時(shí)都不能忽略高層結(jié)構(gòu)的高階振型對(duì)總輸入能量的貢獻(xiàn),否則可能很大程度上低估結(jié)構(gòu)的總輸入能量。再次,運(yùn)用彈塑性分析程序Perform-3D對(duì)9個(gè)考慮了不同結(jié)構(gòu)構(gòu)件參數(shù)的框架-核心筒混合結(jié)構(gòu)進(jìn)行數(shù)值建模并進(jìn)行大量的彈塑性時(shí)程分析,研究了地震動(dòng)參數(shù)和結(jié)構(gòu)參數(shù)對(duì)結(jié)構(gòu)滯回耗能比例的影響,獲得了考慮結(jié)構(gòu)動(dòng)力特性以及地震動(dòng)特性的框架-核心筒混合結(jié)構(gòu)滯回耗能比公式。分析了滯回耗能在結(jié)構(gòu)各構(gòu)件中的傳遞、分配規(guī)律以及沿結(jié)構(gòu)高度方向的分布規(guī)律,確定了框架-核心筒混合結(jié)構(gòu)不同構(gòu)件的滯回耗能分配比例以及沿結(jié)構(gòu)高度方向的分布計(jì)算公式。最后,基于本文分析得到的結(jié)構(gòu)位移和滯回耗能分配公式計(jì)算得出的累積滯回耗能,按照兩種基于能量和位移雙重破壞準(zhǔn)則和一種基于能量單參數(shù)損傷指標(biāo)分別對(duì)兩個(gè)框架-核心筒混合結(jié)構(gòu)的抗震性能進(jìn)行評(píng)估,分析結(jié)果表明僅采用位移單參數(shù)指標(biāo)對(duì)高層框架-核心筒混合結(jié)構(gòu)進(jìn)行抗震性能的評(píng)估是不足的,應(yīng)該考慮構(gòu)件累積耗能對(duì)結(jié)構(gòu)損傷的影響。
[Abstract]:The frame-core tube hybrid structure of high-rise building is one of the main structural forms in our country at present. The seismic failure mechanism and seismic performance of the composite structure are the focus of research at home and abroad. The energy-based seismic response analysis method and seismic design method have clear concept and simple form, and take into account the cumulative hysteretic energy dissipation of structures and the cumulative damage and failure factors of structural members caused by the duration of ground motion. The seismic energy response analysis of high-rise frame-core-tube hybrid structures is rare. It is of great theoretical significance to carry out seismic response analysis and seismic performance evaluation of high-rise frame-core-tube hybrid structures based on energy method. Firstly, the total input energy equation of elastic multi-degree-of-freedom system is derived by mode decomposition theory, and it is proved that the total input energy of multi-degree of freedom system can be expressed by the sum of the total input energy of the corresponding multi-order equivalent single-degree-of-freedom system. The correctness of the method is proved by a large number of examples of time history analysis. Secondly, based on the MPA method and elastic pseudo velocity spectrum, The total elastoplastic input energy spectrum has been established to calculate the elastic and elastoplastic total input energy of a high-rise frame-core tube hybrid structure. Through a large number of elastic-plastic time-history analysis, it is shown that the elastic and elastoplastic total input energy of frame-core-tube hybrid structures can be estimated more accurately according to the method presented in this paper. In calculating the total input energy of elastic or elastoplastic structures, the contribution of higher-order modes of tall structures to the total input energy cannot be ignored, otherwise the total input energy of the structure may be underestimated to a large extent. The elastoplastic analysis program Perform-3D is used to model nine frame-core-tube hybrid structures with different structural member parameters and a large number of elastic-plastic time-history analysis are carried out. The effects of ground motion parameters and structural parameters on the hysteretic energy consumption ratio of structures are studied. The hysteretic energy dissipation ratio formula of frame-core tube hybrid structure considering the dynamic characteristics of the structure and the ground motion characteristics is obtained. The transfer, distribution and distribution of hysteretic energy in each member of the structure are analyzed, as well as the distribution law along the height of the structure. The distribution formula of hysteretic energy consumption of different members of frame-core-tube hybrid structure and its distribution along the direction of structure height are determined. Based on the calculation of displacement and hysteretic energy distribution formula in this paper, the cumulative hysteretic energy dissipation is obtained. According to two failure criteria based on energy and displacement and one damage index based on energy single parameter, the seismic performance of two frame-core-tube hybrid structures is evaluated. The results show that it is insufficient to evaluate the seismic performance of high-rise frame-core-tube composite structures only by using displacement single parameter index, and the effect of cumulative energy dissipation on structural damage should be considered.
【學(xué)位授予單位】：西安建筑科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU973.31

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 江近仁,孫景江;磚結(jié)構(gòu)的地震破壞模型[J];地震工程與工程振動(dòng);1987年01期

2 歐進(jìn)萍,牛荻濤,王光遠(yuǎn);多層非線性抗震鋼結(jié)構(gòu)的模糊動(dòng)力可靠性分析與設(shè)計(jì)[J];地震工程與工程振動(dòng);1990年04期

3 龔治國,呂西林,盧文勝,李培振,楊松,趙斌;混合結(jié)構(gòu)體系高層建筑模擬地震振動(dòng)臺(tái)試驗(yàn)研究[J];地震工程與工程振動(dòng);2004年04期

4 呂西林,朱杰江,劉捷;上海環(huán)球金融中心結(jié)構(gòu)簡化彈塑性時(shí)程分析及試驗(yàn)驗(yàn)證[J];地震工程與工程振動(dòng);2005年02期

5 呂西林;周定松;蔣歡軍;;鋼筋混凝土框架柱的變形能力及基于性能的抗震設(shè)計(jì)方法[J];地震工程與工程振動(dòng);2005年06期

6 牛荻濤，，任利杰;改進(jìn)的鋼筋混凝土結(jié)構(gòu)雙參數(shù)地震破壞模型[J];地震工程與工程振動(dòng);1996年04期

7 肖明葵,白紹良,賴明,劉綱;基于滯回耗能的抗震結(jié)構(gòu)最大位移反應(yīng)[J];重慶大學(xué)學(xué)報(bào)(自然科學(xué)版);2003年03期

8 劉哲鋒;沈蒲生;;地震動(dòng)輸入能量譜的研究[J];工程抗震與加固改造;2006年04期

9 白紹良,黃宗明,肖明葵;結(jié)構(gòu)抗震設(shè)計(jì)的能量分析方法研究述評(píng)[J];建筑結(jié)構(gòu);1997年04期

10 程紹革;鋼-混凝土筒混合結(jié)構(gòu)彈塑性反應(yīng)分析及探討[J];建筑結(jié)構(gòu);1998年06期

相關(guān)博士學(xué)位論文 前4條

1 王德才;基于能量分析的地震動(dòng)輸入選擇及能量譜研究[D];合肥工業(yè)大學(xué);2010年

2 侯煒;鋼筋混凝土核心筒抗震性能及其設(shè)計(jì)理論研究[D];西安建筑科技大學(xué);2011年

3 繆志偉;鋼筋混凝土框架剪力墻結(jié)構(gòu)基于能量抗震設(shè)計(jì)方法研究[D];清華大學(xué);2009年

4 馬千里;鋼筋混凝土框架結(jié)構(gòu)基于能量抗震設(shè)計(jì)方法研究[D];清華大學(xué);2009年

本文編號(hào)：1690553