Novel energy-dissipation and shock-absorption joint structure for wood structure column foot and construction method

Abstract

The invention discloses a novel energy-dissipation and shock-absorption joint structure for a wood structure column foot and a construction method thereof. The joint structure comprises an inner hoop,an outer hoop, a plurality of elastic pieces and a steel bottom plate, wherein the column foot is sleeved with the inner hoop; the inner diameter of the inner hoop is matched with the diameter of thesection of the column foot; a column foot hole is formed in the steel bottom plate; the steel bottom plate is fixed to a foundation stone for containing the column foot; the column foot is positionedin the column foot hole; the diameter of the column foot hole is larger than that of the column foot; the diameter of the steel bottom plate is not smaller than that of the outer hoop; the outer hoopis fixed to the steel bottom plate and positioned outside the inner hoop; and the two ends of each elastic piece abut against the inner hoop and the outer hoop correspondingly. The diameter of the column foot hole is set to be larger than that of the column foot, namely, a distance is reserved between the steel bottom plate and the column foot, in an earthquake, the column foot is allowed to slide within the distance range, the column foot is prevented from moving beyond the limit, and internal force borne by the column foot is reduced; and when the column foot slides, shock absorption and energy dissipation are achieved through elastic deformation of the elastic pieces, and the overall safety of a wood structure can be improved easily.

Description

technical field [0001] The invention relates to the technical field of wood structure engineering, in particular to a new energy-dissipating and shock-absorbing node structure of a column foot of a wood structure and a construction method thereof. Background technique [0002] At present, most of the traditional wood structure buildings in my country use horizontal pendulum floating connection joints, that is, the wooden columns are placed directly on the foundation stone. Through experimental research or theoretical analysis, many scholars at home and abroad believe that this kind of column base is a modern sliding vibration isolation bearing. When subjected to an earthquake, the column base will slip, thereby reducing the internal force on the frame. However, the slippage of the column foot is still a form of damage that cannot be ignored. When the earthquake is strong, the node of the column foot of the wooden structure dwelling will have an over-limit displacement. The ...

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Problems solved by technology

[0003] The utility model patent with the notification number CN207597720U discloses an anti-seismic node structure of a wooden column foot, by pre-embedding the ring-shaped flange steel plate and the vertical arc-shaped steel sheet in the foundation of the wooden column foot, the steel sheet and the round wooden column Fixing with bolts controls the displacement of the column foot. This method completely limits the slippage of the column foot, but it cannot consume the internal force of the round wooden column, and it will still cause damage to the round wooden column, and the steel sheet and the round wooden column pass through. The bolts are fixed, and the bolts pass through the round wooden pillars, and the round wooden pillars must be drilled to artificially damage the structure of the round wooden pillars

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