【摘要】：隨著我國(guó)經(jīng)濟(jì)的飛速發(fā)展，建筑行業(yè)也進(jìn)入一個(gè)騰飛的時(shí)期，伴隨科技進(jìn)步，建筑行業(yè)的設(shè)計(jì)規(guī)范也由時(shí)代的前進(jìn)，不斷的進(jìn)行修正與完善。在地震災(zāi)害頻頻發(fā)生的背景之下，我國(guó)頒布實(shí)施了最新的《建筑抗震設(shè)計(jì)規(guī)范》GB50011-2010，建筑的抗震設(shè)計(jì)進(jìn)入了一個(gè)新階段，但對(duì)于已存在的眾多既有建筑物，均是以舊版抗震規(guī)范為標(biāo)準(zhǔn)進(jìn)行抗震設(shè)計(jì)和建造的。因此，按新舊抗震規(guī)范設(shè)計(jì)的建筑結(jié)構(gòu)的抗震性能備受關(guān)注。 對(duì)于各類(lèi)不同的建筑結(jié)構(gòu)，本文以最普遍的鋼筋混凝土結(jié)構(gòu)為研究對(duì)象，采用增量動(dòng)力分析方法，比較研究按GB50011-2010、GB50011-2001、GBJ11-89三版新舊抗震規(guī)范設(shè)計(jì)的框架結(jié)構(gòu)的抗震性能，主要內(nèi)容如下： （1）對(duì)傳統(tǒng)的增量動(dòng)力分析方法進(jìn)行了改進(jìn)。按地震動(dòng)特征周期選取地震波和隨意選取地震波方法輸入，比較對(duì)IDA結(jié)果離散性的影響，得出按地震動(dòng)特征周期選取地震波輸入得到的IDA結(jié)果的離散性明顯較低。在此基礎(chǔ)上，按不同的特征周期計(jì)算方法選取地震波輸入，比較對(duì)IDA結(jié)果影響，建議優(yōu)先選用FEMA-450中的計(jì)算方法選取地震波輸入。 （2）通過(guò)三版新舊規(guī)范關(guān)于鋼筋混凝土框架設(shè)計(jì)規(guī)范條文的分析，重點(diǎn)比較抗震材料規(guī)定、場(chǎng)地類(lèi)別、地震計(jì)算規(guī)定、內(nèi)力計(jì)算、構(gòu)造要求等要求的差別，發(fā)現(xiàn)隨著抗震規(guī)范的發(fā)展，在加強(qiáng)建筑結(jié)構(gòu)彈性階段強(qiáng)度設(shè)計(jì)同時(shí)，更加關(guān)注建筑結(jié)構(gòu)在彈塑性階段的延性設(shè)計(jì)。 （3）按10版、01版、89版抗震規(guī)范規(guī)定，對(duì)同一鋼筋混凝土結(jié)構(gòu)進(jìn)行結(jié)構(gòu)設(shè)計(jì)和模型建立，通過(guò)改進(jìn)的增量動(dòng)力分析方法，比較三個(gè)結(jié)構(gòu)的塑性鉸分布、IDA曲線結(jié)果、倒塌儲(chǔ)備系數(shù)、IDA曲線易損性等方面，，總結(jié)得出10版結(jié)構(gòu)較01版、89版結(jié)構(gòu)具有較好的抗震性能。 （4）對(duì)抗震性能較差的01版、89版結(jié)構(gòu)，采用鋼支撐的抗震加固方案，并對(duì)兩個(gè)結(jié)構(gòu)加固前后的抗震性能進(jìn)行對(duì)比，得出鋼支撐加固在一定程度上有效的提升了兩結(jié)構(gòu)的承載力，但降低了結(jié)構(gòu)自身的延性。
[Abstract]:With the rapid development of China's economy, the construction industry has also entered a period of rapid development. With the progress of science and technology, the design standards of the construction industry are constantly revised and improved by the advance of the times. Under the background of frequent occurrence of earthquake disasters, our country promulgated and implemented the latest "Code for Seismic Design of buildings", the aseismic design of GB50011-2010, buildings entered a new stage, but for many existing buildings that already exist, All are based on the old seismic code as the standard for seismic design and construction. Therefore, the seismic performance of building structures designed according to the new and old seismic codes has attracted much attention. For various kinds of building structures, this paper takes the most common reinforced concrete structure as the research object, adopts the incremental dynamic analysis method, compares and studies the seismic performance of the frame structure designed according to the new and old seismic code of GB50011-2010,GB50011-2001,GBJ11-89 three editions. The main contents are as follows: (1) the traditional incremental dynamic analysis method is improved. Seismic wave is selected according to the characteristic period of ground motion and the method input of random seismic wave is selected. The effect on the dispersion of IDA results is compared. It is concluded that the dispersion of IDA result obtained by selecting seismic wave input according to the characteristic period of earthquake motion is obviously lower. On this basis, seismic wave input is selected according to different characteristic period calculation methods, and the effect on IDA results is compared. It is suggested that the calculation method in FEMA-450 should be selected first for seismic wave input. (2) through the analysis of the provisions of the new and old codes on the design of reinforced concrete frames, the provisions on seismic material, site category and seismic calculation are compared. With the development of seismic code, it is found that the strength design in the elastic stage of building structure is strengthened at the same time. More attention is paid to the ductility design of the building structure in the elastic-plastic stage. (3) according to the earthquake resistance code of the 10th edition, the tenth edition and the edition No. 89, the structural design and model establishment of the same reinforced concrete structure are carried out, and the improved incremental dynamic analysis method is used to analyze the ductility of the same reinforced concrete structure. The results of plastic hinge distribution and IDA curve of three structures are compared, and the collapse reserve coefficient and the vulnerability of IDA curve are compared. It is concluded that the 10th edition structure has better seismic performance than that of the 01 edition Jian-89 version structure. (4) the steel braced aseismic strengthening scheme is adopted for the structure of the 10th edition version of the Jian-89 edition which has poor seismic performance. By comparing the seismic behavior of the two structures before and after strengthening, it is concluded that steel bracing can effectively enhance the bearing capacity of the two structures to some extent, but reduce the ductility of the structure itself.
【學(xué)位授予單位】：江蘇科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：TU375.4

【參考文獻(xiàn)】

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1 張?chǎng)蝦

本文編號(hào)：2238786