- 摘 要
-
（1 江蘇大學(xué)土木工程與力學(xué)學(xué)院， 鎮(zhèn)江 212013; 2 揚(yáng)州大學(xué)建筑科學(xué)與工程學(xué)院， 揚(yáng)州 225127）
［摘要］設(shè)計(jì)制作了6個(gè)相同疊合形式但剪切件間距和連接形式不同的新梁舊板的組合構(gòu)件、1個(gè)整澆鋼筋混凝土T形梁進(jìn)行受彎性能試驗(yàn)，研究不同剪切件布置間距、連接形式對組合構(gòu)件裂縫的開展形式和受彎性能的影響。試驗(yàn)結(jié)果表明，舊板開孔個(gè)數(shù)越多組合構(gòu)件的整體性越好。當(dāng)舊板上開孔的個(gè)數(shù)能夠使得舊板和新澆筑的梁連接良好時(shí)，新梁和舊板形成的組合構(gòu)件能夠共同工作。采用鋼筋形式的剪切件有助于防止組合構(gòu)件中舊板掀起，使組合構(gòu)件能夠協(xié)調(diào)工作。
［關(guān)鍵詞］新梁舊板； 組合構(gòu)件； 受彎性能； 試驗(yàn)研究
中圖分類號：TU375文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2016)22-0105-05
Experimental study on the flexural behaviors of composite component of post pouring beam and existing slab
Li Congqi1，2, Cao Dafu2, Ge Wenjie2, Ding Hao2
(1 College of Civil Engineering and Mechanics, Jiangsu University, Zhenjiang 212013, China; 2 College of Civil Science and Engineering, Yangzhou University, Yangzhou 225127, China)
Abstract:Flexural experiments of six composite components of post pouring beam and existing slab with different spacing and layout form of shear specimen and one contrast integral pouring T-shaped beam were made. The influence of spacing and layout form of shear specimen on the cracking distribution and flexural behavior were studied. The experimental results show that the integrity of composite components gets better when more holes were made in the existing slab. The connection of post pouring beam and existing slab gets better when the holes were set enough, and the composite component which consists of post pouring beam and existing slab can work together. Using steel bars as shear specimen can avoid the existing slab separate from composite component and make composite components work coordinately.
Keywords:post pouring beam and existing slab; composite component; flexural behavior; experimental study
*國家自然科學(xué)基金資助項(xiàng)目(51278445, 51278230), 江蘇省普通高校研究生科研創(chuàng)新計(jì)劃 (CXZZ12-0655)。
作者簡介：李琮琦，碩士，講師， Email: licq@yzu.edu.cn。
- 下載地址
-
