结构与保温一体化复合剪力墙抗震试验与提高系数简化计算

Seismic Test and Simplified Calculation of Improvement Coefficient of IntegratedComposite Shear Wall with Structure and Thermal Insulation System

为了研究结构与保温系统一体化复合剪力墙的抗震性能,采用试验与理论推导及数值模拟相结合的研究方法,针对有保温系统复合剪力墙和普通复合剪力墙两类试件进行了拟静力加载试验。结果表明:两类复合剪力墙均表现为典型的剪切破坏类型;在低周反复荷载作用下,有保温系统复合剪力墙的整体抗震性能明显优于普通复合剪力墙的。为了解决复合剪力墙建模和计算相对困难等问题,提出了从试验结果反推提高系数的简化计算方法。通过理论推导,建立了刚度和阻尼等提高系数的计算表达式。经实例计算,其结果与试验结果吻合较好,验证了提高系数简化计算方法的正确性与可靠性。

In order to study the seismic performance of composite shear wall with integrated structure and insulation system,quasi-static loading tests are carried out on two kinds of specimens of composite shear wall with insulation system and ordinary composite shear wall by using the research method of combining test,theoretical derivation and numerical simulation.The results are as follows.The two types of composite shear walls are typical shear failure types.Under low-cycle repeated loading,the overall seismic performance of composite shear wall with thermal insulation system is obviously better than that of ordinary composite shear wall.In order to solve the relative difficulties in modeling and calculation of composite shear wall,a simplified calculation method of increasing coefficient from test results is proposed.Through theoretical derivation,the calculation expressions of stiffness and damping improvement coefficients are established.The example calculation shows that the results are in sound agreement with the experimental results,which verifies the correctness and reliability of the simplified calculation method of improving the coefficient.