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（重慶大學土木工程學院  400045）
【提要】  通過配置擴張網(wǎng)混凝土單向板與普通鋼筋混凝土單向板的對比試驗，分析了構件受力的全過程，研究了構件的破壞形態(tài)與機理，對兩者的開裂荷載、極限承載力、剛度等方面進行了對比。由于擴張網(wǎng)特殊的構造，網(wǎng)絲與混凝土之間粘結應力的傳遞具有其特點，因而呈現(xiàn)出不同的粘結機理，并據(jù)此初步分析了粘結應力的傳遞規(guī)律及對擴張網(wǎng)混凝土板裂縫間距及寬度的影響。得出了將擴張網(wǎng)作為受力主材以改進和加強普通鋼筋混凝土板的工程與理論意義。
【關鍵詞】  擴張金屬網(wǎng)  單向板  粘結  裂縫  承載力
Experimental Research on Bending Capacity Behaviors of Concrete Oneway Slabs Reinforced with Expanded Metal Mesh/Xie Jiankui，Luo Wankang，Wen Dingkun（College of Civil Eng.，Chongqing Univ.，Chongqing 400045，China）
Abstract:Based on the contrast test of concrete oneway slabs reinforced with expanded metal mesh and common reinforced concrete oneway slabs，the whole bearing progress of the members is analyzed，the failure mechanism and configuration are researched，and the cracking load，ultimate bearing capacity and stiffness are compared.Owing to the special configuration of the expanded metal mesh，the transferring of bonding force between concrete and expanded metal mesh has its own characteristic.The bonding mechanism of them is discussed and the transferring rule of bonding forces and its influence on crack spacing and width are analyzed.
Keywords:expanded metal mesh； oneway slab； bonding； crack； bearing capacity