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  本文選題：榫卯節(jié)點(diǎn)連接　切入點(diǎn)：拔榫　出處：《河北聯(lián)合大學(xué)》2014年碩士論文

【摘要】：古建筑木結(jié)構(gòu)是通過榫卯之間相互連接組成的整體，榫卯連接之間的穩(wěn)固和安全對古建筑木結(jié)構(gòu)整體的穩(wěn)固與安全起到重要作用�，F(xiàn)存古建筑木結(jié)構(gòu)大多都有一定的殘損，而拔榫就是古建筑木結(jié)構(gòu)中最常見的殘損狀態(tài)，為了準(zhǔn)確把握拔榫對木結(jié)構(gòu)整體穩(wěn)定性的影響，本文通過試驗(yàn)和有限元分析方法進(jìn)行探究。 采用古建筑木結(jié)構(gòu)中最常見的連接形式—透榫作為研究對象。為了排除其他殘損對木結(jié)構(gòu)榫卯節(jié)點(diǎn)連接的影響，本次試驗(yàn)采用的材料為全新的樟子松木材。試驗(yàn)試件的制做，按照《清式營造則例》中大式建筑尺寸，建立縮尺比例為1:2的四個拔榫量分別為0mm、15mm、25mm、35mm的一榀構(gòu)架模型；柱頂采用一次性施加20kN的集中荷載；構(gòu)架豎向荷載施加在額枋三分點(diǎn)處，采用分步逐級加載直到構(gòu)架破壞。通過對其進(jìn)行豎向分級加載試驗(yàn)，得出節(jié)點(diǎn)主要的破壞形式、跨中P-△曲線、位移轉(zhuǎn)角曲線等。根據(jù)試驗(yàn)數(shù)據(jù)發(fā)現(xiàn)：構(gòu)架的破壞點(diǎn)為榫卯連接處，破壞形式為彎、剪復(fù)合破壞，拔榫能降低榫卯連接構(gòu)架的承載力和變形能力。最后用ADINA有限元軟件進(jìn)行模擬分析，并驗(yàn)證試驗(yàn)結(jié)果的正確性；模型的尺寸按照試驗(yàn)試件模型尺寸大小建立，模型的個數(shù)為四個，設(shè)置方式為3-D Solid模型，并通過20個時間步進(jìn)行分步加載；分析結(jié)果表明：用ADINA有限元模擬分析的結(jié)果與試驗(yàn)結(jié)果基本是一致的，這也驗(yàn)證了試驗(yàn)結(jié)果的真實(shí)可信。 通過對不同拔榫狀態(tài)下的透榫榫卯節(jié)點(diǎn)連接性能試驗(yàn)和ADINA有限元模擬分析對比發(fā)現(xiàn)不同拔榫對結(jié)構(gòu)整體性能的影響，，及變化規(guī)律。可以為古建筑木結(jié)構(gòu)修葺與加固提供參考，也可以為新建仿古木結(jié)構(gòu)建筑的設(shè)計(jì)提供參考。
[Abstract]:The ancient wooden structure building is integrated by the mutual connection between the composition of the tenon, stability and safety of mortise and tenon connection between the stability and safety of the whole ancient wooden structures play an important role. The existing ancient timber structure mostly have some damage, but the most common is the ancient wooden building pull tenon structure damage the state, in order to accurately grasp the tenon pull effect on the stability of the overall structure of wood, this paper explored through experiments and finite element analysis method.
The ancient wooden building in the most common form of mortise connection as the research object. In order to eliminate the influence of other damage to the wooden structure tenon connection node, using the test materials for the new wood. Sylvestris specimen making, in accordance with the "Qing style architecture to create a large size rule", the establishment of the scale is four 1:2 Stubbs mortise respectively 0mm, 15mm, 25mm, a framework model of 35mm; use capitals concentrated load one-time application of 20kN; frame vertical load exerted on the architrave three points, by step-by-step loading until failure. Through the vertical frame of the graded loading test, that the failure the form of the main nodes in P- Delta, cross curve, displacement curve. According to the test data: the failure point framework for tenon joint damage in the form of bending, shear, pull tenon mortise and tenon connection structure can reduce The bearing capacity and deformation capacity. The simulation with ADINA finite element analysis software, and verify the correctness of test results; the size of the model according to the test specimen size, the number of models is four, set for the 3-D Solid model, and step loading through 20 time steps; the analysis results show that the use of ADINA finite element simulation analysis results and the experimental results are basically consistent, which proved the test result is credible.
Found that the impact on the overall performance of different pull tenon structure by mortise tenon mortise joints of different state pull tenon connection performance test and ADINA finite element simulation analysis and comparison, and changes in the law. Can provide reference for the repair and reinforcement of wooden structure of ancient buildings, but also can provide a reference for the design of new antique wooden buildings.

【學(xué)位授予單位】：河北聯(lián)合大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TU366.2

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 姚佩歆;趙鴻鐵;薛建陽;郝江華;;側(cè)腳對木結(jié)構(gòu)古建筑抗震性能的影響[J];水利與建筑工程學(xué)報(bào);2011年02期

2 周乾;閆維明;紀(jì)金豹;張博;;CFRP加固古建筑榫卯節(jié)點(diǎn)振動臺試驗(yàn)[J];廣西大學(xué)學(xué)報(bào)(自然科學(xué)版);2011年01期

相關(guān)碩士學(xué)位論文 前1條

1 李琪;古建筑木結(jié)構(gòu)榫卯及木構(gòu)架力學(xué)性能與抗震研究[D];西安建筑科技大學(xué);2008年

本文編號：1711471