无机组合材料高性能水泥复合砂浆钢筋网薄层(HPFL)加固混凝土结构新技术简介
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摘要
随着我国大量老旧建筑物加固修复的需要以及新型建筑材料的飞速发展,采用新型的无机材料加固混凝土结构已成为可能。相对于有机材料加固方法而言,无机材料加固的混凝土结构具有相对较好的耐火性能、抗老化性能和环保性能,并且造价低廉。高性能水泥复合砂浆薄层(HPFL)是一种新型的无机材料,具有强度高、收缩小、与混凝土粘结性能好等一系列优点;将其与钢筋网结合形成的加固薄层能与被加固的混凝土构件很好地共同工作,且对原构件的尺寸加大很少。采用高性能水泥复合砂浆钢筋网薄层加固混凝土构件能有效提高构件的承载力、刚度、抗裂性和延性。
As the great demand of the reinforcement and retrofitting of aged structures nationwide,as well as the rapid development of the research on innovative building materials,the adoption of strengthening RC structures using new inorganic materials has become possible.Comparing the conventional reinforcement technique using organic materials,the significant advantage can be seen using inorganic materials such as better fire-proof performance,aging-resistant property,environment-friendly and cost-effective.High performance ferrocement laminate(HPFL) is a new type of inorganic material with a series of advancements such as high strength,small contraction,and good bonding properties,etc.The reinforced laminate of the HPFL combined with steel-bar mesh can work well with RC member to be strengthened,and minimize the spacing requirement.The capacity of resistance,stiffness,crack resistance and ductility can be significantly promoted when reinforcing RC members with HPFL.
As the great demand of the reinforcement and retrofitting of aged structures nationwide,as well as the rapid development of the research on innovative building materials,the adoption of strengthening RC structures using new inorganic materials has become possible.Comparing the conventional reinforcement technique using organic materials,the significant advantage can be seen using inorganic materials such as better fire-proof performance,aging-resistant property,environment-friendly and cost-effective.High performance ferrocement laminate(HPFL) is a new type of inorganic material with a series of advancements such as high strength,small contraction,and good bonding properties,etc.The reinforced laminate of the HPFL combined with steel-bar mesh can work well with RC member to be strengthened,and minimize the spacing requirement.The capacity of resistance,stiffness,crack resistance and ductility can be significantly promoted when reinforcing RC members with HPFL.
引文
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[5]尚守平,曾令宏,戴睿.钢丝网复合砂浆加固RC梁二次受力受弯试验研究[J].建筑结构学报,2005,26(5):74-80.
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[7]蒋隆敏,尚守平,黄政宇.一种适用于钢丝(筋)网水泥加固RC结构的纤维增强复合砂浆和界面剂[J].土木工程学报,2005,38(5):41-47.
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[9]蒋隆敏,张毛心.国内外关于钢丝网水泥砂浆用于RC结构加固的研究[J].世界地震工程,2004,20(2),139-144.
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[11]S.P.Shang,L.H.Zeng,H.Pei.Flexural strengthening ofreinforced concrete beam with ferro cement[A]//Proceeding of the28th Conference on Our World in Concrete&Structures[C].Singapore,2003:501-508.
[12]Longmin Jiang,Shouping Shang.Experimental investigation into thestrengthening of RC columns using composite mortar laminatesreinforced with mesh reinforcements[R].ACI Special Publication.
[13]戴睿,尚守平,曾令宏.钢丝网复合砂浆加固二次受力钢筋混凝土梁的受弯试验研究[J].湖南大学学报,2005,32(3):192.
[14]尚守平,龙凌霄,曾令宏.销钉在钢筋网复合砂浆加固混凝土构件中的性能研究[J].建筑结构,2006,36(3):10-12.
[15]张毛心,蒋隆敏.钢筋(丝)网复合砂浆加固混凝土构件的综述[J].湖南大学学报,2004,31(4):189.
[16]尚守平,蒋隆敏,张毛心.钢筋网高性能复合砂浆加固钢筋混凝土方柱抗震性能的研究[J].建筑结构学报,2006,27(4):16-22.
[17]曾令宏,尚守平,戴睿.复合砂浆钢筋(丝)网加固RC梁受弯研究[J].湖南大学学报:自然科学版,2007,34(5):6-9.
[2]建设部工程建设标准化协会.《高性能复合砂浆钢筋网加固混凝土结构技术规程》编制[R].
[3]尚守平,曾令宏,彭晖,等.复合砂浆钢丝网加固RC受弯构件的试验研究[J].建筑结构学报,2003,24(6):87-91.
[4]尚守平,曾令宏,彭晖.钢丝网复合砂浆加固混凝土受弯构件非线性分析[J].工程力学,2005,22(3):118-125.
[5]尚守平,曾令宏,戴睿.钢丝网复合砂浆加固RC梁二次受力受弯试验研究[J].建筑结构学报,2005,26(5):74-80.
[6]尚守平,蒋隆敏,张毛心.钢筋网水泥复合砂浆加固RC偏心受压柱的试验研究[J].建筑结构学报,2005,26(2),18-25.
[7]蒋隆敏,尚守平,黄政宇.一种适用于钢丝(筋)网水泥加固RC结构的纤维增强复合砂浆和界面剂[J].土木工程学报,2005,38(5):41-47.
[8]Shouping Shang,Linghong Zeng.Flexural behavior of ferro cementreinforced concrete(RC)beams with steel wire mesh[A]//Proceedingof the International Conference ICACS 2003[C].Xuzhou,China,2003:660-666.
[9]蒋隆敏,张毛心.国内外关于钢丝网水泥砂浆用于RC结构加固的研究[J].世界地震工程,2004,20(2),139-144.
[10]蒋隆敏,张毛心.钢丝网水泥砂浆片材用于结构加固的研究综述[J].建筑结构,2004,34(3),7-11.
[11]S.P.Shang,L.H.Zeng,H.Pei.Flexural strengthening ofreinforced concrete beam with ferro cement[A]//Proceeding of the28th Conference on Our World in Concrete&Structures[C].Singapore,2003:501-508.
[12]Longmin Jiang,Shouping Shang.Experimental investigation into thestrengthening of RC columns using composite mortar laminatesreinforced with mesh reinforcements[R].ACI Special Publication.
[13]戴睿,尚守平,曾令宏.钢丝网复合砂浆加固二次受力钢筋混凝土梁的受弯试验研究[J].湖南大学学报,2005,32(3):192.
[14]尚守平,龙凌霄,曾令宏.销钉在钢筋网复合砂浆加固混凝土构件中的性能研究[J].建筑结构,2006,36(3):10-12.
[15]张毛心,蒋隆敏.钢筋(丝)网复合砂浆加固混凝土构件的综述[J].湖南大学学报,2004,31(4):189.
[16]尚守平,蒋隆敏,张毛心.钢筋网高性能复合砂浆加固钢筋混凝土方柱抗震性能的研究[J].建筑结构学报,2006,27(4):16-22.
[17]曾令宏,尚守平,戴睿.复合砂浆钢筋(丝)网加固RC梁受弯研究[J].湖南大学学报:自然科学版,2007,34(5):6-9.
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