本文關(guān)鍵詞： 裝配式 節(jié)點(diǎn) 低周反復(fù) 抗震性能　出處：《廣州大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：裝配式混凝土結(jié)構(gòu)具有節(jié)約材料、降低能耗、有利于環(huán)境保護(hù)、提高建筑質(zhì)量、縮短施工周期、提高勞動(dòng)生產(chǎn)率和綜合經(jīng)濟(jì)效益、促進(jìn)建筑產(chǎn)業(yè)化等顯著優(yōu)點(diǎn)。另一方面,工程隔震減震技術(shù)是半個(gè)世紀(jì)以來地震工程與結(jié)構(gòu)工程領(lǐng)域最具創(chuàng)新性的研究成果之一，它突破了傳統(tǒng)消極“硬抗”式的被動(dòng)式抗震設(shè)計(jì)方法，是一種主動(dòng)的“以柔克剛”式的結(jié)構(gòu)設(shè)計(jì)新對(duì)策。在現(xiàn)代裝配式工業(yè)化建筑中應(yīng)用先進(jìn)的隔震減震技術(shù)，不僅適應(yīng)了我國(guó)住宅商品化程度日益增長(zhǎng)的要求，也滿足了業(yè)主對(duì)住宅產(chǎn)品抗震安全性不斷提高的需要，代表了我國(guó)在未來住宅建設(shè)發(fā)展上的重要方向，具有重要的歷史意義和廣闊的市場(chǎng)前景。 本文提出了一種適用于裝配式鋼筋混凝土隔震結(jié)構(gòu)的新型裝配式隔震梁柱節(jié)點(diǎn)，該節(jié)點(diǎn)在罕遇地震的作用下，仍具備一定的強(qiáng)度和穩(wěn)定性，從而保證了隔震層的安全。本文在國(guó)內(nèi)外研究的基礎(chǔ)上，針對(duì)裝配式混凝土梁柱節(jié)點(diǎn)及其抗震性能開展了試驗(yàn)和理論研究，內(nèi)容概括如下： 1、裝配式節(jié)點(diǎn)的設(shè)計(jì)。本文設(shè)計(jì)了兩種裝配式方案，制作4個(gè)半尺試件，即3個(gè)裝配式試件和1個(gè)現(xiàn)澆對(duì)比試件，介紹了試件的設(shè)計(jì)和制作過程，并對(duì)試驗(yàn)過程和試驗(yàn)現(xiàn)象進(jìn)行了詳細(xì)的描述和初步分析。 2、裝配式節(jié)點(diǎn)的抗震性能研究。在對(duì)上述試件進(jìn)行低周反復(fù)加載試驗(yàn)的基礎(chǔ)上，對(duì)新型裝配式梁柱節(jié)點(diǎn)進(jìn)行了抗震性能研究，分析其開裂破壞形態(tài)、滯回特性、骨架曲線、剛度退化、延性性能、耗能能力、鋼筋應(yīng)變、混凝土應(yīng)變等抗震性能。綜合分析結(jié)果表明，通過合理的連接，裝配式鋼筋混凝土節(jié)點(diǎn)具有良好的抗震性能。 3、理論分析與試驗(yàn)對(duì)比。應(yīng)用ABAQUS有限元軟件對(duì)MCB節(jié)點(diǎn)的骨架曲線進(jìn)行了模擬，并用OpenSees程序?qū)CB節(jié)點(diǎn)的滯回曲線進(jìn)行了模擬，模擬結(jié)果均與試驗(yàn)結(jié)果基本吻合。ABAQUS模擬節(jié)點(diǎn)的破壞部位和形式與試驗(yàn)結(jié)果基本一致，驗(yàn)證了模型的合理性與準(zhǔn)確性。ABAQUS的數(shù)值模擬結(jié)果，為結(jié)構(gòu)試驗(yàn)提供了加載依據(jù)。 文中研究的新型裝配式隔震梁柱節(jié)點(diǎn)具有優(yōu)良的抗震性能，能夠滿足抗震設(shè)計(jì)要求。這種結(jié)構(gòu)可以廣泛的用于我國(guó)抗震地區(qū)，，有廣闊的應(yīng)用前景。
[Abstract]:The prefabricated concrete structure has the advantages of saving materials, reducing energy consumption, improving environmental protection, improving construction quality, shortening construction period, increasing labor productivity and comprehensive economic benefits. On the other hand, engineering isolation and damping technology is one of the most innovative research achievements in the field of seismic engineering and structural engineering in the past half century. It breaks through the traditional passive "hard resistance" passive seismic design method, and is a new active "flexible and rigid" structural design strategy, which applies advanced isolation and shock absorption technology in modern prefabricated industrial buildings. It not only meets the requirements of the increasing degree of commercialization of housing in China, but also meets the needs of the owners for the continuous improvement of anti-seismic safety of residential products. It represents the important direction of the development of housing construction in the future in our country. Has the important historical significance and the broad market prospect. In this paper, a new type of assembled isolated Liang Zhu node is proposed, which is suitable for assembly reinforced concrete isolated structure. The node still has a certain strength and stability under the action of rare earthquake. Based on the research at home and abroad, this paper has carried out the experimental and theoretical research on the assembled concrete Liang Zhu joint and its seismic performance. The contents are summarized as follows: 1. The design of assembly node. In this paper, two kinds of assembly schemes are designed. Four half-foot test pieces are made, that is, 3 assembly specimens and 1 cast-in-place contrast specimen. The design and manufacture process of the specimen are introduced. The experimental process and experimental phenomena are described and analyzed in detail. 2. The seismic behavior of assembled joints is studied. Based on the low-cycle repeated loading tests, the aseismic behavior of the new assembled Liang Zhu joints is studied, and the cracking and failure patterns of the joints are analyzed. Hysteretic properties, skeleton curves, stiffness degradation, ductility, energy dissipation capacity, reinforcement strain, concrete strain, etc. The prefabricated reinforced concrete joints have good seismic performance. 3. The ABAQUS finite element software is used to simulate the skeleton curve of MCB joints. The hysteretic curve of MCB node is simulated by OpenSees program. The results of simulation are in good agreement with the test results. The damage position and form of Abaqus simulation nodes are basically consistent with the test results. The rationality and accuracy of the model are verified. The numerical simulation results of Abaqus provide the loading basis for the structural test. The new fabricated Liang Zhu joints studied in this paper have excellent seismic performance and can meet the requirements of seismic design. This kind of structure can be widely used in earthquake resistant areas of China and has a broad application prospect.
【學(xué)位授予單位】：廣州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TU352.12

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