方钢管梁与钢筋混凝土现浇板嵌入式连接方式试验研究
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摘要
为了研究方钢管梁与钢筋混凝土现浇板的一种新型连接方式,即方钢管梁采用嵌入混凝土板中一部分的连接方式,对嵌入混凝土板中方钢管上部侧面布置不同剪力连接件的11个新型方钢管梁-钢筋混凝土现浇板组合试件的抗剪性能进行了推出试验,对其中7个试件进行单调静力加载推出试验,对另外4个试件进行低周反复加载推出试验。获得了不同连接方式试件的破坏模式、承载能力及变形能力。试验结果表明,相对于常规连接方式组合梁,除了在方钢管梁侧向布置小钢板连接件的试件取得了较好的承载能力以外,其余剪力连接件组合梁的承载能力及变形能力均有所下降。
In order to study a new connection shape of square steel tube beam and cast-in-place reinforced concrete slab,namely the connection shape of a part of the square steel tube beams embedded in the reinforced concrete slab,11 new composite specimens composed of square steel tube beam and cast-in-place reinforced concrete slab with different shear connectors at top sides of the square steel tube beams embedded in the reinforced concrete slab have been tested,among which there are 7 monotonous static load push-out tests and 4 low reversed cyclic loading push-out tests. The failure modes,bearing capacity and deformation capacity of specimens with different connection shapes were obtained. The test results show that,compared with the conventional connection composite beams,the specimens with small steel plate connections arranged laterally in square steel tube beams have achieved good load-bearing capacity,but the bearing capacity and deformation capacity of the other composite beams with shear connectors have decreased.
In order to study a new connection shape of square steel tube beam and cast-in-place reinforced concrete slab,namely the connection shape of a part of the square steel tube beams embedded in the reinforced concrete slab,11 new composite specimens composed of square steel tube beam and cast-in-place reinforced concrete slab with different shear connectors at top sides of the square steel tube beams embedded in the reinforced concrete slab have been tested,among which there are 7 monotonous static load push-out tests and 4 low reversed cyclic loading push-out tests. The failure modes,bearing capacity and deformation capacity of specimens with different connection shapes were obtained. The test results show that,compared with the conventional connection composite beams,the specimens with small steel plate connections arranged laterally in square steel tube beams have achieved good load-bearing capacity,but the bearing capacity and deformation capacity of the other composite beams with shear connectors have decreased.
引文
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[3] CHAPMAN J C,BALAKRISHMANS. Experiments on composite beams[J]. Transactions of the American Society of Civil Engineers,1961,126(2):1135-1142.
[4] OLLGAARD J G,SLUTTER R G,FISHER J W. Shear strength of stud connectors in lightweight and normalweight concrete[J]. AISC Engineering Journal,1971,8(2):55-64.
[5] MALEKI S,BAGHERI S. Behavior of channel shear connectors,part I:Experimental study[J]. Journal of Constructional Steel Research,2008,64(12):1333-1340.
[6] MALEKI S,BAGHERI S. Behavior of channel shear connectors,part II:Analytical study[J]. Journal of Constructional Steel Research,2008,64(12):1341-1348.
[7] SHARIATI M,SULONG N H R,SUHATRIL M,et al.Behaviour of C-shaped angle shear connectors under monotonic and fully reversed cyclic loading:an experimental study[J]. Materials&Design,2012,41:67-73.
[8]聂建国,孙国良.钢-混凝土组合梁槽钢剪力连接件基本性能和极限承载力研究[J].郑州工学院学报,1985(2):33-44.
[9]聂建国,孙国良.钢-混凝土组合梁槽钢剪力连接件的研究[J].工业建筑,1990(10):8-13,57.
[10]聂建国,沈聚敏,袁彦声,等.钢-混凝土组合梁中剪力连接件实际承载力的研究[J].建筑结构学报,1996,17(2):21-28.
[11]钢筋锚固板应用技术规程:JGJ 256—2011[S].北京:中国标准出版社,2011.
[2] VIEST I M. Closure of"review of research on composite steel-concrete beams"[J]. Transactions of the American Society of Civil Engineers,1961,126(2):765-783.
[3] CHAPMAN J C,BALAKRISHMANS. Experiments on composite beams[J]. Transactions of the American Society of Civil Engineers,1961,126(2):1135-1142.
[4] OLLGAARD J G,SLUTTER R G,FISHER J W. Shear strength of stud connectors in lightweight and normalweight concrete[J]. AISC Engineering Journal,1971,8(2):55-64.
[5] MALEKI S,BAGHERI S. Behavior of channel shear connectors,part I:Experimental study[J]. Journal of Constructional Steel Research,2008,64(12):1333-1340.
[6] MALEKI S,BAGHERI S. Behavior of channel shear connectors,part II:Analytical study[J]. Journal of Constructional Steel Research,2008,64(12):1341-1348.
[7] SHARIATI M,SULONG N H R,SUHATRIL M,et al.Behaviour of C-shaped angle shear connectors under monotonic and fully reversed cyclic loading:an experimental study[J]. Materials&Design,2012,41:67-73.
[8]聂建国,孙国良.钢-混凝土组合梁槽钢剪力连接件基本性能和极限承载力研究[J].郑州工学院学报,1985(2):33-44.
[9]聂建国,孙国良.钢-混凝土组合梁槽钢剪力连接件的研究[J].工业建筑,1990(10):8-13,57.
[10]聂建国,沈聚敏,袁彦声,等.钢-混凝土组合梁中剪力连接件实际承载力的研究[J].建筑结构学报,1996,17(2):21-28.
[11]钢筋锚固板应用技术规程:JGJ 256—2011[S].北京:中国标准出版社,2011.