CN203066282U

CN203066282U - Series-parallel combination U-shaped bi-directional soft steel energy dissipation damper

Info

Publication number: CN203066282U
Application number: CN 201320007630
Authority: CN
Inventors: 齐秀珍; 申小翠
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2013-01-08
Filing date: 2013-01-08
Publication date: 2013-07-17
Anticipated expiration: 2023-01-08

Abstract

The utility model relates to a series-parallel combination U-shaped bi-directional soft steel energy dissipation damper used for controlling earthquake responses of a tall frame suspended system to effectively improve whole earthquake resistant performance of a primary structure and a substructure. The bi-directional energy dissipation damper is assembled by two stainless steel plates, 8-32 U-shaped soft steel bars which are totally same and bolts. The series-parallel combination U-shaped bi-directional soft steel energy dissipation damper can decompose wind loads or earthquake action of any directions into bidirectional loading, and enables the wind loads or the earthquake action to carry out pulling, pressing and shear deformation to dissipate energy to achieve a purpose of bidirectional energy dissipation. The series-parallel combination U-shaped bi-directional soft steel energy dissipation damper has the advantages of being strong in deformation ability, convenient and fast to manufacture, easy to install and maintain, and capable of dissipating vibration energy of any directions. Due to the fact that the soft steel bars are used for manufacturing the series-parallel combination U-shaped bi-directional soft steel energy dissipation damper, materials are saved, heat dissipation performance of the dumper in the process of energy dissipation and earthquake reduction can be improved, and energy dissipation and earthquake reduction effects can be expressed on a large scale.

Description

U-shaped two-way mild steel energy dissipating damper is made up in a kind of connection in series-parallel

Technical field

The utility model relates to a kind of connection in series-parallel and makes up U-shaped two-way mild steel energy dissipating damper, this damper can be used for the earthquake response of control high-rise frame suspension system, thereby effectively improve the whole anti-seismic performance of main structure and minor structure, belong to civil engineering antidetonation, energy-dissipating and shock-absorbing control technology field.

Background technology

Along with the quickening of China's process of industrialization, impel population constantly to concentrate to the central city, cause urban land day to be becoming tight, for alleviating this contradiction, urban architecture is had to the high-altitude development, and high-rise frame suspension system building is also just arisen at the historic moment.Because relative displacement is bigger between suspension system main structure and the minor structure, after vibration takes place, minor structure can produce very unfavorable driving to main structure, think and the ability that makes the high-rise frame suspension system possess outside destroy such as stronger opposing earthquake or wind load be necessary under this system, to carry out the research of novel energy-dissipation shock-absorbing damp.

At present, metal damper can be divided into twist mode, shearing-type, tension and compression type and flexure type metal damper by stress.Kelly (1975) proposes torsional damper the earliest, but this damper produces to reverse more greatly and must need bigger sectional dimension, and economy is relatively poor, uses less relatively.Li Hongnan (2006) designs double X-type soft steel shearing damper, utilizes the elastoplasticity hysteresis distortion dissipation energy of steel plate.Common tension and compression type damper is marmem damper, and its advantage is that material possesses shape memory function and big strain superelastic properties.The flexure type damper mainly contains " worker " font damper that annulus energy consumer that Tyler R G proposes the earliest and Italian scholar Laura propose, and they all are to be subjected to curvedly to produce uniform plasticity hysteresis and be out of shape dissipation energy by material.But in the actual engineering structures, because the uncertainty of wind load and geological process direction, requirement is installed in the vibrational energy that damper between high-rise frame suspension system main structure and the minor structure can consume any direction simultaneously, and above-mentioned existing damper can only satisfy the usefulness damping requirement of single direction, thereby has had a strong impact on the use safety of high-rise frame suspension system building.

The utility model content

For solving problems of the prior art, the utility model provides a kind of connection in series-parallel to make up U-shaped two-way mild steel energy dissipating damper, this damper can be decomposed into bidirectional stress with any direction wind load or geological process, make it to draw simultaneously, pressure, shear strain come the dissipates vibration energy, reach the designing requirement of two-way power consumption, the performance of energy dissipating can be provided by the plastic strain that provides after the steel surrender mild steel damper simultaneously, and surrender back mild steel damper under cyclic loading vibrates repeatedly still possesses more stable hysteretic characteristic.U-shaped mild steel bar is taked the connected mode of connection in series-parallel combination, on the basis that does not change the mild steel damper integral rigidity, can more clearly distinguish transmission displacement and power, thereby more gives full play to the two-way energy dissipating performance of damper.

In addition, damper selects for use the mild steel bar manufacturing can also save material, also more can improve the heat dispersion that damper is crossed in the energy-dissipating and shock-absorbing process, brings into play the energy-dissipating and shock-absorbing effect to greatest extent.

The utility model realizes that the technical scheme that its practical novel purpose adopts is: U-shaped two-way mild steel energy dissipating damper is made up in a kind of connection in series-parallel, comprises two stainless steel outside plates 2, two stainless steel

inner panels

3 and 8 ~ 32 U-shaped mild steel bars 4, it is characterized in that:

Be serially connected in one group of U-shaped mild steel bar unit of connecting with two described U-shaped mild steel bars 4 by

bolt

7,2 ~ 8 groups of U-shaped mild steel bar unit of connecting are at one end in a row closely linked to each other with stainless steel outside plate 2 and stainless steel inner panel 3 by bolt B 6, the bolt spacing equates; In stainless steel outside plate 2 and the fixing U-shaped mild steel bar of the series connection unit of counting on the same group mutually of stainless steel inner panel 3 other ends, two rows connect to form between the U-shaped mild steel bar unit and are connected in parallel with identical connected mode; Arrange equidistantly that along stainless steel outside plate 2 and the stainless steel inner panel 3 vertical axis of symmetry clamp stud A5 is fixed into one with stainless steel outside plate 2 and stainless steel inner panel 3; Two stainless steel outside plates 2 by bolt C8 respectively with the high-rise frame suspension system in main structure 11 and minor structure 12 be fixedly linked.

Operating principle of the present utility model and the course of work are: when this connection in series-parallel is made up U-shaped two-way mild steel energy dissipating damper and is subjected to course under cyclic loading, the mild steel bar of connection in series-parallel combination is the power consumption position, external energy by damper draw, pressure, shear strain dissipation.This device is installed in the building structure of high-rise frame suspension system, any direction wind load or geological process can be decomposed into bidirectional stress, provides certain rigidity and opposite force to alleviate structural vibration, to reach the designing requirement of two-way power consumption.The connected mode that U-shaped mild steel bar takes connection in series-parallel to combine on the basis that does not change the mild steel integral rigidity, can more clearly be distinguished and transmit displacement and power, thereby more gives full play to the two-way energy dissipating performance of damper.When the suffered vibration in damper two ends is slight, be in elastic state; Suffered vibration is more violent when the damper two ends, when producing displacement greater than yield displacement, is in the plasticity duty, and damper utilizes the plastic strain of mild steel to consume vibrational energy, thereby the high-rise frame suspension system is played a protective role.

Compare with existing energy dissipating damper device, substantive distinguishing features and the beneficial effect that the utlity model has are embodied in:

1) this energy dissipating damper can be decomposed into bidirectional stress with any direction wind load or geological process, makes it to draw simultaneously, pressure, shear strain come the dissipates vibration energy, reaches the designing requirement of two-way power consumption;

2) U-shaped mild steel bar is taked the connected mode that connection in series-parallel combines, and does not change the mild steel damper integral rigidity, can more clearly distinguish transmission displacement and power, thereby more gives full play to the two-way energy dissipating performance of damper;

3) the energy dissipating damper selects for use the mild steel bar manufacturing can also save material, also more can improve the heat dispersion that damper is crossed in the energy-dissipating and shock-absorbing process, brings into play the energy-dissipating and shock-absorbing effect to greatest extent;

4) performance of energy dissipating can be provided by the plastic strain that provides after the steel surrender two-way mild steel damper, and surrender back mild steel damper under cyclic loading vibrates repeatedly still possesses more stable hysteretic characteristic;

5) energy dissipating damper key node place adopts bolt to connect, and is very easy to Unit Installation and dismounting, and is convenient to management of shifting products.

Description of drawings

Fig. 1 makes up U-shaped two-way mild steel energy dissipating damper three-dimensional structure schematic diagram for a kind of connection in series-parallel of the utility model;

Fig. 2 makes up U-shaped two-way mild steel energy dissipating damper structure generalized section for a kind of connection in series-parallel of the utility model;

Fig. 3 is stainless-steel sheet connected mode schematic diagram in the utility model;

Fig. 4 is U-shaped mild steel bar structural representation in the utility model;

Fig. 5 is that the utility model and master, minor structure are installed connection diagram.

The specific embodiment

Preferred embodiment accompanying drawings of the present utility model is as follows:

Embodiment one:

Referring to Fig. 1 and Fig. 2, U-shaped two-way mild steel energy dissipating damper is made up in this connection in series-parallel, comprises two stainless steel outside plates (2), two stainless steel inner panels (3) and 8 ~ 32 U-shaped mild steel bars (4), it is characterized in that:

Be serially connected in one group of U-shaped mild steel bar unit of connecting with two described U-shaped mild steel bars (4) by bolt (7), 2 ~ 8 groups of U-shaped mild steel bar unit of connecting are at one end in a row closely linked to each other with stainless steel outside plate (2) and stainless steel inner panel (3) by bolt B (6), and the bolt spacing equates; In stainless steel outside plate (2) and the fixing U-shaped mild steel bar of the series connection unit of counting on the same group mutually of stainless steel inner panel (3) other end, two rows connect to form between the U-shaped mild steel bar unit and are connected in parallel with identical connected mode; Equidistantly arrange clamp stud A(5 along the vertical axis of symmetry of stainless steel outside plate (2) and stainless steel inner panel (3)) stainless steel outside plate (2) and stainless steel inner panel (3) are fixed into one; Two stainless steel outside plates (2) are by bolt C(8) respectively with the high-rise frame suspension system in main structure (11) and minor structure (12) be fixedly linked.

Embodiment two:

Referring to Fig. 3, pass through clamp stud A(5 between stainless steel outside plate (2) and the stainless steel inner panel (3)) fixedly connected.

Embodiment three:

Referring to Fig. 4, the mild steel narrow boards curves typing through cold-working and becomes U-shaped mild steel bar.

Embodiment four:

Referring to Fig. 5, the two-way energy dissipating damper (1) that combines is by bolt C(8) link to each other with main structure (11) and minor structure (12) in the high-rise frame suspension system.

Claims

1. U-shaped two-way mild steel energy dissipating damper is made up in a connection in series-parallel, comprises two stainless steel outside plates (2), two stainless steel inner panels (3) and 8 ~ 32 U-shaped mild steel bars (4), it is characterized in that: