本文關(guān)鍵詞： T形連接件 節(jié)點(diǎn) 彎矩—轉(zhuǎn)角曲線 初始剛度　出處：《吉林建筑大學(xué)》2015年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：在鋼結(jié)構(gòu)建筑中,普遍將節(jié)點(diǎn)設(shè)計(jì)成完全剛接和理想鉸接,但這與實(shí)際的節(jié)點(diǎn)受力狀態(tài)是存在偏差的。事實(shí)情況是絕大多數(shù)的梁柱節(jié)點(diǎn)的連接都是介于這兩種理想方式之間,被定義為半剛性連接。而在鋼結(jié)構(gòu)設(shè)計(jì)中,節(jié)點(diǎn)的設(shè)計(jì)又是保證結(jié)構(gòu)體系安全可靠的關(guān)鍵,因此對(duì)節(jié)點(diǎn)位置的復(fù)雜應(yīng)力、受力狀態(tài)、破壞形式等是設(shè)計(jì)的重要控制環(huán)節(jié)。1994年發(fā)生在美國(guó)加州的Northridge地震(里氏6.7級(jí))和1995年發(fā)生在日本阪神的地震(里氏7.2級(jí)),將當(dāng)時(shí)被公認(rèn)采用最可靠的全焊型連接方式的鋼結(jié)構(gòu)幾乎全部毀壞。破壞集中在梁柱節(jié)點(diǎn)的焊縫位置,因此對(duì)傳統(tǒng)的設(shè)計(jì)理念提出了很大的挑戰(zhàn)。在此之后,各國(guó)專(zhuān)家都試圖找尋更加可靠的連接方式,在幾乎不降低承載力的同時(shí),避免節(jié)點(diǎn)位置的脆性破壞,提高節(jié)點(diǎn)的延性性能。在這種大環(huán)境下,梁柱節(jié)點(diǎn)的半剛性連接更為重要。本文針對(duì)半剛性連接中的典型連接方式—T型鋼連接采用理論分析和試驗(yàn)研究相結(jié)合的方法做進(jìn)一步的研究。并且使用大型通用有限元分析軟件ABAQUS補(bǔ)充分析,對(duì)試驗(yàn)中難以直接測(cè)量到的位置,數(shù)據(jù)進(jìn)行細(xì)致分析。進(jìn)一步完善試驗(yàn)中的不足。通過(guò)對(duì)試驗(yàn)結(jié)果分析和試驗(yàn)數(shù)據(jù)的處理,最終得出此連接形式的破壞狀態(tài),節(jié)點(diǎn)承載力的控制要素,彎矩-轉(zhuǎn)角曲線,螺栓撬力等一系列數(shù)據(jù),進(jìn)一步完善T型鋼連接的設(shè)計(jì)理論,以促進(jìn)這一連接形式在工程實(shí)際中的更廣泛應(yīng)用。
[Abstract]:In steel structure buildings, the joints are generally designed to be completely rigid and perfectly hinged. However, there is a deviation from the actual stress state of the joints. The fact is that most of the connections of Liang Zhu joints are between these two ideal ways, which are defined as semi-rigid connections, and in the design of steel structures. The design of the joint is the key to ensure the safety and reliability of the structure system. The Northridge earthquake (magnitude 6.7 on the Richter scale) occurred in California on 1994 and the earthquake in Hanshin, Japan on 1995. Richter 7.2). The steel structure which was recognized as the most reliable all-welded joint at that time was almost completely destroyed. The damage was concentrated in the weld position of Liang Zhu joint, so it posed a great challenge to the traditional design concept. Experts from all over the world are trying to find a more reliable connection way to avoid the brittle failure of joint position and improve the ductility performance of joints without reducing the bearing capacity at the same time. The semi-rigid connection of Liang Zhu joint is more important. In this paper, the theoretical analysis and experimental study are used to further study the typical connection mode -T section steel connection in semi-rigid connection. The finite element analysis software ABAQUS was used to supplement the analysis. Through the analysis of the test results and the processing of the test data, the failure state of this connection form is finally obtained through the analysis of the test results and the processing of the test data, which are difficult to measure directly and the data are analyzed carefully and the deficiencies in the test are further improved. A series of data, such as the control factors of joint bearing capacity, moment-corner curve, bolt prying force and so on, further improve the design theory of T-section steel connection, so as to promote the more extensive application of this connection form in engineering practice.
【學(xué)位授予單位】：吉林建筑大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TU391

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