多孔磚開孔及孔洞布置研究.pdf

1、沈陽建筑大學(xué)碩士學(xué)位論文多孔磚開孔及孔洞布置研究姓名：劉雅楠申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：趙成文2011-03碩士研究生學(xué)位論文 Abstract IIIAbstractIndustrial waste gangue porous brick with environmental protection, energy saving etc,accord with the need of sust

2、ainable development, and can be widely applied in multi- storeybuilding bearing structure. Since since the advent of liaoning province construction by highattention. In order to popularize, appli

3、cation in this new wall materials, liaoning walling reformoffice organization staffing liaoning local standards in architectural application technology as thefoundation, and had a lot of effectiv

4、e test. This article through to industrial waste gangue porousbrick of compressive performance numerical simulation and theory analysis, relevant standardsfor porous brick compiling provides theor

5、y basis.A lot of testing research shows that the destruction of porous brick first is in the single brickvertical vertical ash seam is in cracks and compressive strength of the masonry belo

6、w porousbrick itself the compressive strength, which indicates that the porous brick intensity has not beenfully utilized. Because of the lateral deformation of generally greater than the morta

7、r brickmasonry compression of the lateral deformation, after their mutual constraint, make brickproduced inside tensile stress. So porous brick most purely crushed less. Today's porous brickr

8、esearch mostly during the test stage of its mechanical properties were discussed, the real root upfrom mechanics analysis of less, so this paper reference others results, from mechanics on tr

9、yingto its structure design and mechanical properties and geometric shape optimization aspects ofresearch, that produce porous brick accomplished already stress reasonable and guaranteeenvironmental

10、 protection and energy saving.This research mainly in the following aspects:1.This paper using the finite element method of four types of typical of porous brickresistance of the semi- ellipse

11、 pressure learning performance is simulated. Through the simulationcompressive failure process, obtained the corresponding deformation diagram and the stressdistribution law, for the design and app

12、lication of porous brick provides mechanics grounds.2.When porous brick masonry in pressure, the pressure of the vertical direction functionexpansion deformation, quite paper- cover surface by edg

13、eunder tensile holes. Can be simplifiedinto space problem planar problem, and one of the porous brick bearing performance is the mostheavily affected holes. The problem of stress concentration

14、 Through theoretical analysis ofvarious hole shape of different stress concentration phenomenon.3.Because of the lateral deformation of generally greater than the mortar brick masonrycompression of

15、 the lateral deformation, after their mutual constraint, make brick produced insidetensile stress, porous brick is pulled bad. Through theoretical derivation is deduced, pull withmasonry by the