本文選題：預(yù)制空心板 + X水平斜撐�。� 參考：《西安建筑科技大學(xué)》2015年碩士論文

【摘要】：隨著建筑業(yè)的飛速發(fā)展,傳統(tǒng)的房屋建造方式弊病凸顯,工廠化、裝配化、精細(xì)化正成為歷史發(fā)展的必然趨勢(shì)。國(guó)內(nèi)外研究表明,裝配式預(yù)制結(jié)構(gòu)與現(xiàn)澆結(jié)構(gòu)相比,存在一定差距,如何改進(jìn)與發(fā)展,是當(dāng)前亟待深入研究和解決的課題。本文基于課題組提出的在板底增加斜撐,在梁-板、板-板結(jié)點(diǎn)采用可靠連接方式的新型裝配式樓板體系,采用縮尺結(jié)構(gòu)模型試驗(yàn)與有限元模擬分析相結(jié)合的方法,進(jìn)行了如下研究工作:(1)精心設(shè)計(jì)了梁-板節(jié)點(diǎn)、梁-柱節(jié)點(diǎn)、梁-墻節(jié)點(diǎn)、板縫節(jié)點(diǎn);按1/4比例縮尺制作了四個(gè)試驗(yàn)?zāi)Ｐ?分別為:帶X水平斜撐的鋼框架剪力墻結(jié)構(gòu)SJ1、帶X水平斜撐的新型裝配式空心板-鋼框架剪力墻混合結(jié)構(gòu)SJ2/SJ3(無(wú)后澆層)和現(xiàn)澆板-鋼框架剪力墻混合結(jié)構(gòu)SJ4。(2)對(duì)SJ1與SJ2進(jìn)行了彈性階段的擬靜力對(duì)比試驗(yàn),試驗(yàn)表明:新型裝配式空心樓板具有良好的空間整體性能,能夠與鋼框架-剪力墻結(jié)構(gòu)形成良好的統(tǒng)一整體,有效傳遞水平荷載。(3)以SJ2為例對(duì)新型裝配式空心樓板進(jìn)行了平面內(nèi)力學(xué)特性分析,形成了SJ2的整體抗側(cè)剛度矩陣和平面內(nèi)變形矩陣。通過(guò)計(jì)算發(fā)現(xiàn),按本文提出的節(jié)點(diǎn)設(shè)計(jì)方法連接的裝配式空心樓蓋板在地震加速度為0.1g(抗震設(shè)防烈度為7度)時(shí)的平面內(nèi)變形很小,可近似按剛性樓板對(duì)其進(jìn)行抗震設(shè)計(jì)。(4)對(duì)SJ3與SJ4進(jìn)行了彈性階段的擬靜力對(duì)比試驗(yàn),并對(duì)SJ4進(jìn)行了破壞試驗(yàn)。試驗(yàn)表明:X斜撐對(duì)裝配式結(jié)構(gòu)的空間整體性能和抗震性能起到了預(yù)定的改善效果;在彈性階段,兩者的空間整體性能和抗震性能近似等同。(5)用ABAQUS有限元對(duì)SJ3和SJ4進(jìn)行了對(duì)比模擬,結(jié)合試驗(yàn)結(jié)果給出了如下建議,即在設(shè)防烈度要求較小(小于8度)的地區(qū)預(yù)制樓板的后澆層建議用X水平斜撐代替,在設(shè)防烈度要求較大(大于8度)的地區(qū)仍建議保留后澆層,以保證裝配式混合結(jié)構(gòu)的空間整體性和抗震性能。
[Abstract]:With the rapid development of the construction industry, the disadvantages of the traditional housing construction mode become prominent, factory, assembly, refinement is becoming the inevitable trend of historical development. Studies at home and abroad show that there is a certain gap between prefabricated structure and cast-in-place structure. How to improve and develop is an urgent problem to be studied and solved. This paper is based on a new type of fabricated floor system, which adds inclined brace at the bottom of the plate and uses reliable connection at the beam-slab and plate-plate junctions, and adopts the method of combining the model test of the scale structure with the finite element simulation analysis. The following research work was carried out: (1) carefully designed beam-plate joints, beam-column joints, beam-wall joints, plate joints, and four test models based on a scale of 1 / 4. They are: steel frame shear wall structure SJ1 with X horizontal diagonal brace, new fabricated hollow slab-steel frame shear wall hybrid structure SJ2- SJ3 (without post-pouring layer) and cast-in-place slab-steel frame shear wall hybrid structure SJ _ 4. 2) SJ _ 1 / SJ _ 1 / SJ _ 1 / SJ _ 1 / SJ _ 1 / SJ _ 1 / SJ _ 1 / SJ _ 1 / SJ _ 1 / SJ _ 1 / SJ _ 1 The quasi-static contrast test with SJ _ 2 in elastic stage was carried out. The test results show that the new assembled hollow floor slab has good overall spatial performance and can form a good unified whole with steel frame-shear wall structure. Taking SJ2 as an example, the in-plane mechanical properties of the new fabricated hollow floor are analyzed, and the overall lateral stiffness matrix and in-plane deformation matrix of SJ2 are formed. Through calculation, it is found that the plane deformation of the fabricated hollow floor slab is very small when the seismic acceleration is 0.1 g (the seismic fortification intensity is 7 degrees) according to the joint design method proposed in this paper. The quasi static test of SJ3 and SJ4 in elastic stage and the failure test of SJ4 are carried out according to the seismic design of rigid slabs. The test results show that the ratio X slanting brace has a predetermined improvement effect on the overall spatial performance and seismic performance of the assembled structure; in the elastic stage, The spatial integral performance and seismic performance of the two are approximately equal. 5) the comparison and simulation of SJ3 and SJ4 are carried out by Abaqus finite element method. The following suggestions are given in combination with the experimental results. That is, in areas where the intensity of fortification is low (less than 8 degrees), it is suggested that X horizontal diagonal brace should be used in the post-pouring layer of the precast floor, and that the post-pouring layer should still be retained in the area where the fortified intensity requirement is greater than 8 degrees. In order to ensure the spatial integrity and seismic performance of the assembled hybrid structure.
【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】：2015
【分類(lèi)號(hào)】：TU398.9

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