某新型装配整体式楼盖面内刚度研究分析
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摘要
通过1/4缩尺钢框架-钢板剪力墙混合结构模型模拟地震振动台试验和理论计算分析,研究了某新型装配整体式楼盖和相应等效现浇楼盖对水平地震力在不同抗侧力构件之间分配的影响及其刚度对比情况。研究和分析表明:新型连接装配楼盖较相应等效现浇楼盖面内刚度略低,二者对水平地震作用的传递能力接近,均可保证模型结构中不同抗侧力构件之间的协同工作。另基于非刚性楼盖的"串并联质点系"矩阵位移法对比分析表明,本文所研究的新型装配楼盖的水平抗推刚度与设置50mm厚后浇面层的普通装配式楼盖的水平抗推刚度接近。
Through simulating the earthquake shaking table test and the theoretical calculation analysis of a 1/4 reduced scale steel frame-steel plate shear wall mixed structure model, the influence of a new assembled monolithic floor and corresponding equivalent cast-in-place floor on the horizontal seismic force distribution between different components resisting lateral forces, and the contrast of their stiffnesses are studied. The research and analysis shows that the in-plane stiffness of the new assembled monolithic floor is slightly lower than that of the corresponding equivalent cast-in-place floor, and the ability of their transmission of horizontal seismic is close, which can guarantee the collaborative work between different components resisting lateral forces in the model structure. Additionally, the matrix displacement method based on the "series-parallel lumped mass system" of non-rigid floor was used, and the contrast analysis shows that the horizontal anti-thrust stiffness of the new assembled monolithic floor is close to that of the general assembly floor with 50 mm concrete in-situ surface.
Through simulating the earthquake shaking table test and the theoretical calculation analysis of a 1/4 reduced scale steel frame-steel plate shear wall mixed structure model, the influence of a new assembled monolithic floor and corresponding equivalent cast-in-place floor on the horizontal seismic force distribution between different components resisting lateral forces, and the contrast of their stiffnesses are studied. The research and analysis shows that the in-plane stiffness of the new assembled monolithic floor is slightly lower than that of the corresponding equivalent cast-in-place floor, and the ability of their transmission of horizontal seismic is close, which can guarantee the collaborative work between different components resisting lateral forces in the model structure. Additionally, the matrix displacement method based on the "series-parallel lumped mass system" of non-rigid floor was used, and the contrast analysis shows that the horizontal anti-thrust stiffness of the new assembled monolithic floor is close to that of the general assembly floor with 50 mm concrete in-situ surface.
引文
[1] 郑先超,宋扬,李青宁.新型装配整体式预应力楼盖的整体性能研究与有限元分析[J].科学技术与工程,2013,13(30):9102-9108
[2] 马欣伯,张素梅,郭兰慧.两边连接钢板剪力墙试验与理论分析[J].天津大学学报,2010,43(8):697-704
[3] 聂建国,黄远.高层建筑组合楼盖面内变形简化分析模型[J].工业建筑,2008,38(3):5-8
[4] 武汉建筑材料工业学院,石家庄市建筑材料工业局.石家庄KQ-79型框架轻板建筑三层空间框架整体破坏性试验研究[J].地震工程与工程振动,1982,2(2):56-71
[5] 刘季,王焕定,李暄,等.多层砖石结构房屋空间作用的实测与分析[J].建筑结构,1981,(4):13-22
[6] Lam D,Elliott K S.Parametric study on composite steel beams with precast concrete hollow core floor slabs [J].Journal of Constructional Steel Research,2000,54(2):83-304
[7] Lam D.Capacities of headed stud shear connectors in composite steel beams with precast hollowcore slabs[J].Journal of Constructional Steel Research,2007,63(9):1160-1174
[8] 李进,王建,李青宁,等.钢框架-剪力墙装配式楼板结构拟动力试验[J].建筑结构,2014,44(13):58-63
[2] 马欣伯,张素梅,郭兰慧.两边连接钢板剪力墙试验与理论分析[J].天津大学学报,2010,43(8):697-704
[3] 聂建国,黄远.高层建筑组合楼盖面内变形简化分析模型[J].工业建筑,2008,38(3):5-8
[4] 武汉建筑材料工业学院,石家庄市建筑材料工业局.石家庄KQ-79型框架轻板建筑三层空间框架整体破坏性试验研究[J].地震工程与工程振动,1982,2(2):56-71
[5] 刘季,王焕定,李暄,等.多层砖石结构房屋空间作用的实测与分析[J].建筑结构,1981,(4):13-22
[6] Lam D,Elliott K S.Parametric study on composite steel beams with precast concrete hollow core floor slabs [J].Journal of Constructional Steel Research,2000,54(2):83-304
[7] Lam D.Capacities of headed stud shear connectors in composite steel beams with precast hollowcore slabs[J].Journal of Constructional Steel Research,2007,63(9):1160-1174
[8] 李进,王建,李青宁,等.钢框架-剪力墙装配式楼板结构拟动力试验[J].建筑结构,2014,44(13):58-63