A kind of U-shaped mild steel damper for timber structure bean column node
The utility model belongs to field of civil engineering, is related to antidetonation and damping, and in particular to one kind is used for timber structure beam column
The U-shaped mild steel damper of node.
Traditional ancient building of China is with gallows timber for main structure type, builds the lotus born during use
It carries, is all undertaken by gallows timber.Unlike modern architecture, the wall in ancient building functions only as the effect of maintenance, does not undertake
Vertical load.So traditional timber buildings of China have the characteristics of " wall fall room do not collapse ".China historical timber frame, be by
Column, beam, purlin, a tree, used in making timber for boats, rafter, the wood component composition such as plate.According to the appearance forrns of building, gallows timber can be divided into：Build the wooden structure in hard mountain
Frame hangs mountain and builds gallows timber, and gallows timber is built in hip roof, and gable and hip roof builds gallows timber, collects together point building gallows timber, and gallery builds gallows timber
Deng.Wherein, hard mountain building is chiefly used in local-style dwelling houses with outstanding mountain building, in feudal hierarchical society, belongs to most inferior common building.Compared with
It is common.Now illustrate the composition of its gallows timber by taking both buildings as an example.The gallows timber that hard mountain building is built with outstanding mountain is by depth
Number row's timber bent composition of axis direction.These timber bents are formed by connecting in building width direction by components such as several purlin purlin wood.Its
The gallows timber of the building of his form is slightly different with this, but still is made of these basic building blocks.
For timber bent in bearing load, load is transmitted to flat Quan wood by rafter, is accepted by flat Quan wood.Pass through the structures such as sets of brackets on top of the columns again
Part passes to flat-topped ridge, on rafter Fu, newborn Fu etc. crossbeams.Then it after passing to peripheral column and inner prop by crossbeam again, stops over to base for post.Pass through
The load transfer analysis of timber bent, it can be seen that bean column node is the key node in timber buildings, and in timber structure, beam column
With component position, the difference of form and title is all slightly different node.
In timber structure, column is divided into peripheral column, inner prop etc..Peripheral column refers to the pillar at eaves position, also known as corridor column.Beam-type member is again
Including setting a roof beam in place, baotou beam, the components such as a tree, used in making timber for boats.Baotou beam and peripheral column or inner prop junction, penetrating tie and peripheral column or inner prop junction, room
It sets a roof beam in place and inner prop junction, bean column node can be constituted.Bean column node is since earthquake and other reasons tend to occur destroy, nothing
The good bearing load of method can not even continue to use, and be the major hidden danger in timber structure.It is tied according to existing some wood
The damaged investigation of structure ancient building all produces very serious destruction it can be found that in beam-type member and bean column node position.It is saving
At point, there are beams locally to be compressed, and depth of beam reduces.Beam is split into ribbon.Or beam end stress is excessive,
Generate tear failure.Some destroy serious beam, and beam body generates apparent downwarp, entire body cracking.Some beams due to by
War receives very serious artificial destruction, tears at band-like.And it is real by some timber structure bean column nodes in recent years
It tests, it is also seen that the failure mode of bean column node.In these trials, there is general bat a tree, used in making timber for boats by lateral deflection, produce more tight
The plastic deformation of weight, finally by lateral deflection so that splitting, shaft also generate crack, crack is continued to develop, and is eventually developed to the fourth of the twelve Earthly Branches mouthful and is gone out,
Cause the destruction of mortise-tenon joint.Therefore, the maintenance of ancient building central sill Column border node and newly-built timber structure bean column node are designed to
The emphasis and difficult point of research.
Summary of the invention
For the deficiencies in the prior art, the purpose of the utility model is to provide one kind to be used for timber structure beam column
The U-shaped mild steel damper of node, to solve the technical problem of existing timber structure bean column node antidetonation shock attenuation performance difference.
In order to solve the above-mentioned technical problem, the application, which adopts the following technical scheme that, is achieved：
A kind of U-shaped mild steel damper for timber structure bean column node, including beam connecting plate and column connecting plate further include resistance
Buddhist nun's frame, the damper frame include top plate, and the both ends of top plate are vertically connected with one end of a pair of parallel side plate, a pair of side plates
The other end is open, and the inner end of the beam connecting plate is fixedly arranged on the top plate outside damper frame；
The inner end of the column connecting plate is located in damper frame, and the inner end of column connecting plate is not contacted with top plate, the column
The open end of a pair of side plates is stretched out in the outer end of connecting plate；
The column connecting plate is arranged in parallel with a pair of side plates, is symmetrically installed between column connecting plate and a pair of side plates multiple
U-shaped mild steel plate.
The utility model also has following distinguishing feature：
The beam connecting plate and column connecting plate is in the same plane.
The U-shaped mild steel plate is mounted by means of bolts on side plate and column connecting plate.
Two groups of U-shaped mild steel plates, the opening phase of two groups of U-shaped mild steel plates are installed between the column connecting plate and each side plate
Ribbed stiffener is provided on the other end of described a pair of side plates.
The outer end of the beam connecting plate and the outer wall of beam casing cylinder are hinged, outer end and the column sleeve cylinder of the column connecting plate
Outer wall is hinged.
Compared with prior art, beneficial has the technical effect that the utility model：
The metal mild steel damper of the utility model has that easy processing, Hysteresis Behavior are stable, be easily changed, cost and maintenance expense
With it is cheap the advantages that, can preferably protect timber structure bean column node.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Fig. 2 is the overlooking structure diagram of the utility model.
Fig. 3 is the use state diagram of the utility model.
The meaning of each label is in figure：1- beam connecting plate, 2- column connecting plate, 3- damper frame, 31- top plate, 32- side plate,
4-U type mild steel plate, 5- bolt, 6- ribbed stiffener, 7- beam casing cylinder, 8- column sleeve cylinder, 9- wooden frame, 10- pin.
Explanation is further explained in detail to the particular content of the utility model with reference to embodiments.
Timber structure bean column node use mortise-tenon joint mode, can occur when bearing earthquake load it is small-scale deform with
Energy is consumed, but when earthquake load is excessive, causes bean column node deformation excessive, the deformation of itself is difficult to carry out effectively at node
Ground energy consumption, it is therefore desirable to which the damper that can be replaced carries out auxiliary energy consumption.It, can be quickly to the structure once damper destroys
Part carries out concentration replacement, restores the function of seismic resistance of timber structure entirety rapidly.
Metal damper especially mild steel damper is a kind of good damper component, and this type damper utilizes soft
The various forms of elastoplasticity hysteresis deformations of steel have good low-Cycle Fatigue Characteristics, become to ambient temperature to consume energy
Change insensitivity, and cheap, facilitates durable.Currently, mild steel has successfully been used in above a variety of dampers.Such as
The mild steel damper of buckling restrained brace and some other types.
Buckling restrained brace is made of steel core and outside steel pipe concrete, and is smeared non-cohesive material between the two and formed cunning
Arena face.At work, complete buckling occurs buckling restrained brace under the constraint of Covered with Angles pipe concrete for steel core and part is bent
Song has good ductility.If buckling restrained brace by reasonable design, can have very high rigidity and very high prolong
Property and good hysteresis ability.In addition there are the mild steel dampers of putting more energy into using mild steel.This damper is bent using steel plate
Plastic deformation after clothes is come the seismic energy that dissipates.It is external to this damper and the structure of this damper has been installed to have carried out
More experimental study and analysis.
It can be seen that mild steel due to its good Hysteresis Behavior, excellent energy consumption according to the analysis of these above-mentioned dampers
Ability has boundless prospect of the application in damper.
In compliance with the above technical solution, specific embodiment of the utility model is given below, it should be noted that this is practical new
Type is not limited to following specific embodiments, and it is practical new that all equivalent transformations made on the basis of the technical solutions of the present application each falls within this
The protection scope of type.The utility model is described in further details below with reference to embodiment.
The present embodiment provides a kind of U-shaped mild steel damper for timber structure bean column node, as shown in Figure 1 to Figure 3, including
Beam connecting plate 1 and column connecting plate 2 further include damper frame 3, and the damper frame includes top plate 31, and the both ends of top plate 31 are vertically solid
It is connected to one end of a pair of parallel side plate 32, the other end of a pair of side plates 32 is open, and the inner end of the beam connecting plate 1 is fixedly arranged at
On top plate 31 outside damper frame 3；
The inner end of the column connecting plate 2 is located in damper frame 3, and the inner end of column connecting plate 2 is not contacted with top plate 31, institute
The open end of a pair of side plates 32 is stretched out in the outer end for the column connecting plate 2 stated；
The column connecting plate 2 is arranged in parallel with a pair of side plates 32, symmetrically pacifies between column connecting plate 2 and a pair of side plates 32
Equipped with multiple U-shaped mild steel plates 4.
Top plate 31 is steel plate, to avoid this steel plate from surrendering in damper work, damper is made to fail to play energy consumption
The ability of normal work is acted on and loses in advance, this block steel plate should thicken.
As a kind of preferred embodiment of the present embodiment, beam connecting plate 1 and column connecting plate 2 are in the same plane.
As a kind of preferred embodiment of the present embodiment, U-shaped mild steel plate 4 is fixedly mounted on side plate 32 by bolt 5 and column connects
On fishplate bar 2.The position of bolt hole should meet in Steel Structural Design principle about bolt hole center away from and bolt hole center to plate
The requirement of Edge Distance.It is connected with, convenient for operation, convenient disassembly, power transmission is clear, reasonable stress, keeps damper better
It plays a role.
As a kind of preferred embodiment of the present embodiment, two groups of U-shaped mild steel are installed between column connecting plate 2 and each side plate 32
The opening of plate 4, two groups of U-shaped mild steel plates 4 is oppositely arranged, and can preferably be coped with various modifications, be played the role of energy consumption.Every group is
Two U-shaped mild steel plates 4.Each U-shaped mild steel plate 4 is made of two edges of a wing and intermediate semicircular web.The edge of a wing of U-shaped mild steel and
Web sectional dimension having the same.
As a kind of preferred embodiment of the present embodiment, ribbed stiffener 6 is provided on the other end of a pair of side plates 32.Ribbed stiffener 6
It for a pair and is arranged symmetrically, is bolted.
As a kind of preferred embodiment of the present embodiment, the outer end of beam connecting plate 1 and the outer wall of beam casing cylinder 7 are hinged, described
The outer end of column connecting plate 2 and the outer wall of column sleeve cylinder 8 are hinged.Using sleeve, damper on the one hand can be more easily loaded and unloaded, it is another
Aspect, sleeve can also preferably constrain the wooden component.It can also play the role of protecting the wooden component to a certain extent.Using hinged
Form, damper can be dismantled and be replaced.In hinged source, realized by using pin shaft and split pin hinged.
It is realized using pin shaft and split pin hinged, there is low manufacture cost, production is simple, convenient disassembly, the low advantage of maintenance cost.
When the utility model is used, beam casing cylinder 7 is sleeved on wooden frame 9, column sleeve cylinder 8 is sleeved on pin 10, and is solid
It is fixed, beam connecting plate 1 and beam casing cylinder 7 is hinged, column connecting plate 2 and column sleeve cylinder 8 is hinged, complete installation.When an earthquake occurs,
Timber structure bean column node can be protected, quick-replaceable can also be carried out after destroying.