- 摘 要
-
孫 彬 牛荻濤 王慶霖 (西安建筑科技大學(xué) 710055)
[提要] 在闡述銹蝕混凝土梁結(jié)構(gòu)性能的基礎(chǔ)上,分析了影響銹蝕梁剛度退化的眾多因素,結(jié)合試驗數(shù)據(jù),提出了銹蝕梁抗彎剛度的計算方法,建立了由于銹蝕使粘結(jié)力下降導(dǎo)致剛度退化的模型,可為混凝土結(jié)構(gòu)耐久性評估提供科學(xué)依據(jù)。
[關(guān)鍵詞] 銹蝕鋼筋混凝土梁 抗彎剛度 粘結(jié)力退化 剛度退化On the basis of describing structural properties of the corroded reinforced concrete beam, all factors which influence the deterioration of flexural rigidity of the corroded beam are analyzed. According to the test results, the model of the deterioration of rigidity caused by the decrease of bond strength is built and the a method of calculating flexural rigidity of corroded beam is given.A scientific basis is offered for the assessment of durability of RC structures.
Keywords: corroded reinforced concrete beam; flexural rigidity; deterioration; bond strength; rigidity參 考 文 獻(xiàn)
1.惠云玲等.混凝土受彎構(gòu)件腐蝕前后構(gòu)件性能試驗研究報告.冶金建筑研究.1995.
2.陶 峰,王林科,王慶霖等.服役鋼筋混凝土構(gòu)件承載力的試驗研究.工業(yè)建筑,1996,26(4).
3.王慶霖,池永亮,牛荻濤.銹后無粘結(jié)鋼筋混凝土梁的模擬試驗與分析.建筑結(jié)構(gòu),2001,31( 4).
4.金偉良,趙羽習(xí).銹蝕鋼筋混凝土梁抗彎強度的試驗研究.工業(yè)建筑,2001,31(5).
5.牛荻濤,翟彬,王林科等.銹蝕鋼筋混凝土梁的承載力分析.建筑結(jié)構(gòu),1999,(8).
6.袁迎曙,賈福萍,蔡 躍.銹蝕鋼筋混凝土梁的結(jié)構(gòu)性能退化模型.土木工程學(xué)報,2001,34(3).
7.任寶雙,錢稼茹,聶建國.在用鋼筋混凝土簡支橋面粱受彎剛度估算.工業(yè)建筑,2001,31(1).
8.BaIlim Y, Reid JC, Kemp AR. Deflection of RC beams under simultaneous load and steel corrosion. Magazine of Concrete Research,2001,53(3).
9.Al-Sulaimani GJ, Kaleemullah M, Basunbul IA, et al. Influence of corrosion and cracking on bond behavior and strength of reinforced concrete members. ACI Structural Journal, 1990, 87(2).
10.朱伯龍,肖建莊.碳化混凝土的結(jié)構(gòu)性能.工業(yè)建筑,1998,28(9).
11.趙羽習(xí),金偉良.銹蝕鋼筋與混凝土粘結(jié)性能的試驗研究.浙江大學(xué)學(xué)報,2002,36(4).
12.Coronelli Dario. Corrosion cracking and bond strength modeling for corroded bars ln reinforced concrete. ACI Structural Journal,2002, 99(3).