Experiment study on flexural behavior of RC/PRC beams strengthened with high strength steel wire mesh and permeable polymer mortar - Details

author：

Lin, Yu-Dong (Lin, Yu-Dong.) ^[1] (Scholars：林于东) | Zong, Zhou-Hong (Zong, Zhou-Hong.) ^[2] | Lin, Qiu-Feng (Lin, Qiu-Feng.) ^[3]

Indexed by：

EI Scopus PKU CSCD

Abstract：

In　this　paper,　the　flexural　performance　of　the　concrete　beams　strengthened　with　U-shaped　high　strength　steel　wire　and　permeable　polymer　mortar　(HSSW-PPM)　were　studied.　An　experimental　study　including　six　reinforced　concrete　(RC)　beams　and　five　prestressed　reinforced　concrete　(PRC)　beams　strengthened　with　HSSW-PPM　was　carried　out　under　static　loading.　The　influences　of　damage　intensity,　level　of　effective　prestressing　and　loading　regime　on　the　flexural　performance　of　these　strengthened　beams　were　investigated.　Some　conclusions　were　extracted　from　the　testing　as　follows:　(1)　The　cracking　development　can　be　effectively　restrained　using　the　proposed　U-shaped　strengthening　method　with　HSSW-PPM,　and　the　flexural　load-carrying　capacity,　the　rigidity,　and　the　ductility　of　the　strengthened　RC/PRC　beams　can　also　be　enhanced.　(2)　The　rating　of　rigidity　of　the　strengthened　beams　might　be　occurred　under　a　recycle　loading,　and　the　flexural　carrying　capacity　of　the　strengthened　RC/PRC　beams　can　not　be　obviously　changed　while　the　initial　damage　degree　changed.　This　kind　of　study　may　be　employed　as　the　reference　of　flexural　strengthening　for　the　amount　of　existing　RC/PRC　beam　structures.

Keyword：

Concrete beams and girders High performance concrete High strength steel Mesh generation Mortar Polymers Prestressed concrete Reinforced concrete Rigidity Strengthening (metal) Strength of materials Wire

Community：

[ 1 ] [Lin, Yu-Dong]College of Civil Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
[ 2 ] [Zong, Zhou-Hong]School of Civil Engineering, Southeast University, Nanjing, Jiangsu 210096, China
[ 3 ] [Lin, Qiu-Feng]College of Civil Engineering, Fuzhou University, Fuzhou, Fujian 350108, China