Combined buckling-restrained support with multiple yielding sections and multiwave core units
A technology of buckling restraint and yield section, applied in the field of combined buckling restraint support, to achieve the effect of superior support, low axial tension and compression stiffness, and controllable yield force
Active Publication Date: 2019-02-22
BEIJING UNIV OF TECH
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[0030] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.
[0031]Combined buckling-constrained support with multi-yielding sections and multi-wave core elements. The core element uses five core plates with different bending degrees, including a straight core element 1, two wavelet bent plate core elements 2, and two large wave bent plates The core unit 3, the two ends of the core unit are connected with the square end plate 8, the straight core unit 1 is located at the plane geometric center of the square end plate 8, the two wavelet bent plate core units 2 are located on the upper and lower sides of the straight core unit 1, and the ...
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Abstract
The invention discloses a combined buckling-restrained support with multiple yielding sections and multiwave core units and belongs to the field of building structure techniques and earthquake resistance and shock absorption of structures. A structural system comprises a straight plate core unit, small wave bend plate core units, large wave bend plate core units, stiffening ribs, limiting clips, cross steel tubes, cement-emulsified asphalt mortar, square end plates, hinge joints, node plates, anchor plates and the like. A supporting core unit comprises a straight plate core unit, two small wave bend plate core units and two large wave bend plate core units. The cross steel tube serves as a restraining unit. The cement-emulsified asphalt mortar fills the gaps between the restraining unit and the core units. The support is connected to the node plates on a main body structure through the hinge joints. Multi-yielding of the buckling-restrained support is achieved, so that the support hasrelatively good energy consumption performance in small medium and large earthquakes. The core units have good fatigue performance and are hardly broken. A novel filling material can provide a more stable restraining function to the core units.
Description
technical field [0001] The invention relates to a combined buckling constrained support with multiple yield sections and a multi-wave core unit, belonging to the field of new building structure technology and structure anti-seismic shock absorption. Background technique [0002] The traditional frame structure often has the defect of insufficient lateral stiffness. Therefore, the frame structure is often supplemented with oblique supports to improve its lateral resistance, thus forming a support-frame structure system. Compared with the frame structure, the brace-frame structure system has a higher anti-lateral bearing capacity, but the premise is that the brace does not buckle and lose stability when it is under compression, so the buckling-constrained brace came into being. The buckling-constrained bracing sets constraining units around the core unit to limit the buckling development of the core unit when the support is under compression, so as to ensure that it can fully ...
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Login to View More IPC IPC(8): E04B1/98E04H9/02
CPCE04H9/021
Inventor 吴山何浩祥周钰婧郑家成
Owner BEIJING UNIV OF TECH