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装配式钢管密肋保温复合墙体抗震性能试验研究
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Experimental Study on the Seismic Behavior of Precast Steel Tube Multi-ribbed Thermal Insulation Composite Wall
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    为研究钢管分布形式对钢管密肋保温复合剪力墙墙体抗震性能的影响,设计制作了4片缩尺比为1 ∶ 2的装配式钢管密肋保温复合剪力墙墙体,通过对1片剪力墙墙体的轴压试验和3片剪力墙墙体的低周往复荷载试验,研究了墙体的破坏形态及模式、承载能力、滞回特性、骨架曲线、刚度退化以及变形和耗能性能. 试验结果表明:对于竖向荷载作用下的密肋复合墙体,由于在肋柱中布置了钢管,其抗压承载力显著提高;对于低周往复荷载作用的密肋复合墙体,其主要破坏形态为整体剪切破坏,且基本按照“填充砌块—肋格—边框柱”的顺序破坏,与普通钢筋密肋复合墙相比,钢管密肋保温复合墙的抗剪承载力提高了112%,同时具有良好的变形能力和耗能性能. 研究结果完善了装配式密肋复合板结构体系,为密肋复合板结构应用于高层住宅建筑提供了理论依据.

    Abstract:

    In order to study the influence of steel pipe distribution on the seismic performance of steel pipe multi- ribbed insulation composite shear walls,four assembled steel tube multi-ribbed thermal insulation composite shear walls with a scale ratio of 1 ∶ 2 were designed and manufactured. The failure modes and modes,bearing capacity,hysteretic characteristics,skeleton curve,stiffness degradation,deformation and energy dissipation of the walls were studied and analyzed through the axial compression test of one wall and the low-cycle reciprocating load test of three walls. The test results show that the compressive capacity of multi-ribbed composite shear wall under vertical load is significantly increased due to the arrangement of steel tubes in the rib column;for multi-ribbed composite shear wall under low cyclic load,the main failure mode is shear failure,and the failure is basically in accordance with the order of “filling block-rib-frame column”,which is compound with common steel ribs. Compared with the composite wall,the shear capacity of the steel tube multi-ribbed insulation composite wall is increased by 112%,and it has good assembled multi-ribbed composite slab,which provides a theoretical basis for the application of multi-ribbed deformation capacity and energy dissipation performance. The experimental study perfects the structure system of composite slab structure in high-rise residential buildings.

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袁泉?覮,董嘉林,朱洪磊.装配式钢管密肋保温复合墙体抗震性能试验研究[J].湖南大学学报:自然科学版,2021,48(3):88~98

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  • 在线发布日期: 2021-03-23
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