CN217379960U - House shock insulation structure based on SBS pitch-two steel mesh sliding surface that twist pair - Google Patents

Abstract

The utility model provides a house shock insulation structure based on SBS pitch-two steel wire mesh slip planes, including the shock insulation bottom plate, the shock insulation bottom plate is provided with round limit baffle all around, and the inboard shock insulation bottom plate upper berth of limit baffle is equipped with one deck SBS pitch-two steel wire mesh, and SBS pitch-two steel wire mesh are built by laying bricks or stones on the piece and are had the ground ring roof beam, are fixed with the superstructure in house on the ground ring roof beam. The inner side of the limit baffle is uniformly provided with a plurality of rubber buffer blocks, and the inner sides of the rubber buffer blocks are abutted with the edges of the SBS pitch-twisted steel wire mesh. The SBS asphalt-twisted steel wire mesh sliding surface is used as a sliding supporting element to separate a building from a shock insulation base plate, the building is integrated, the building is allowed to horizontally move relative to the shock insulation base plate when an earthquake occurs, earthquake energy is isolated through relative sliding of a sliding layer, the self-vibration frequency of the structure is reduced, the self-vibration period of the structure is prolonged, the earthquake reaction of an upper structure of the building is reduced, and the earthquake isolation effect is achieved.

Description

House shock insulation structure based on SBS pitch-two steel mesh sliding surface that twist pair

Technical Field

The utility model belongs to the technical field of building shock insulation, a low-cost shock insulation structure of rural house of building oneself is related to, specifically is a house shock insulation structure based on SBS pitch-two wire mesh net glide plane.

Background

China is located between two earthquake zones and is one of countries with more earthquake occurrences in the world. Earthquake disasters all the time show that earthquake damage in economically developed areas is characterized by large economic loss and relatively few casualties, and earthquake damage in economically undeveloped areas is characterized by more casualties. For example, Wenchun earthquake and Yushu earthquake in the Sichuan cause a great deal of house damage and collapse, wherein the house self-construction in rural areas is more seriously damaged. The historical training of tragic pain gives us a bell which is knocked, and the shock resistance of the houses in villages and small towns is improved. With the development of rural economy, the living standard of farmers is gradually improved, and the requirements of farmers on improving the earthquake resistance capability and the earthquake resistance safety of houses are more urgent. Therefore, the earthquake-proof safety of the self-built houses in the vast villages and small towns must be improved, and casualties and property loss of people are reduced as much as possible.

At present, the building shock insulation mainly adopts a base shock insulation technology, namely a shock insulation device is arranged between the bottom of an upper structure and the top surface of a foundation, so that the motion of the upper structure is separated from the ground motion, meanwhile, the shock insulation device can also isolate seismic energy, the seismic reaction of the upper structure is reduced, the upper structure of the building only slightly moves and deforms when an earthquake occurs, the safety of personnel is ensured, and the integrity of equipment, decoration and decoration is not damaged. The existing well-used shock isolation device is a laminated steel plate rubber shock isolation support, but the laminated steel plate rubber shock isolation support is complex in manufacturing process, high in manufacturing cost, heavy in weight and difficult to popularize and use in village and town houses due to the fact that special instruments are needed for construction and installation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a house shock insulation structure based on SBS pitch-two steel wire mesh slip planes can reduce engineering cost when guaranteeing house shock insulation effect, and the convenience is popularized and applied in rural area.

The utility model adopts the following technical scheme:

a house shock insulation structure based on an SBS asphalt-twisted steel wire mesh sliding surface comprises a shock insulation base plate, a circle of limiting baffle plates are arranged on the periphery of the shock insulation base plate, a layer of SBS asphalt-twisted steel wire mesh is laid on the upper surface of a shock insulation base plate (2) on the inner side of each limiting baffle plate, a floor ring beam is built on the SBS asphalt-twisted steel wire mesh, and a house superstructure is fixed on the floor ring beam. The SBS asphalt-twisted steel wire mesh comprises two SBS modified asphalt layers and a twisted steel wire mesh arranged between the two SBS modified asphalt layers.

The utility model discloses following beneficial effect has:

1. the shock insulation bottom plate structure is the same as a raft foundation, has certain rigidity and can provide a reliable and stable sliding surface for a building, the whole upper structure with the ring beam slides on the sliding surface of the SBS pitch-twisted steel wire mesh on the shock insulation bottom plate, the arrangement has excellent shock insulation effect in an earthquake, and the building can be restored and repaired after the earthquake only by arranging the jack on the inner side of the limiting baffle plate after the earthquake; in addition, the shock insulation bottom plate has good applicability to various construction sites;

2. compared with the traditional laminated steel plate rubber support, the cost is obviously reduced, a special installation team and special machinery are not needed for installation, the selected materials are easy to obtain, the installation is convenient, and the laminated steel plate rubber support has high practicability and wide popularization prospect;

3. the SBS asphalt-twisted pair steel wire mesh sliding surface arranged on the surface of the seismic isolation bottom plate is formed by compounding two SBS modified asphalt layers and one twisted pair steel wire mesh laid between the two SBS modified asphalt layers, and the SBS modified asphalt has high damping and relatively low horizontal rigidity, and the overall rigidity of the SBS modified asphalt is enhanced by the twisted pair steel wire mesh, so that the overall stability of the sliding surface can be greatly improved in use, and the SBS modified asphalt sliding surface is prevented from being pulled to crack when a building slides;

4. the rubber buffer block is arranged on the inner side of the limit baffle, so that the house upper structure can be prevented from generating excessive displacement under the action of an earthquake, and the intensity of collision between the house upper structure and the limit baffle can be weakened;

5. the SBS pitch-twisted steel wire mesh sliding surface not only plays a role in protecting buildings such as houses and the like through shock insulation, but also can play a role in moisture prevention and protect the interior decoration of the houses.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of a seismic isolation structure for rural self-building houses in the prior art;

FIG. 2 is a schematic structural diagram of a second embodiment of a seismic isolation structure for rural self-building houses in the prior art;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a schematic structural view of the present invention;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

FIG. 6 is a cross-sectional view C-C of FIG. 4;

FIG. 7 is a cross-sectional view of the SBS pitch-twisted steel mesh of FIG. 4;

fig. 8 is a schematic view of the working principle of the present invention.

In the figure, 1-SBS asphalt-double twisted steel wire mesh, 2-shock insulation base plate, 3-SBS modified asphalt layer, 4-double twisted steel wire mesh, 5-ground ring beam, 6-rubber buffer block, 7-limit baffle, 8-upper structure, 9-constructional column, 10-cover plate, 11-brick wall, 12-concrete base plate, 13-upper ring beam, 14-sand cushion layer, 15-lower ring beam, 16-foundation, 17-asphalt ointment block, 18-reinforcing steel bar and 19-brick pier.

Detailed Description

As shown in fig. 1, a first embodiment of a low-cost seismic isolation structure for self-building houses in rural areas in the prior art includes a foundation base 16, a lower ring beam 15 is built on the foundation base 16, a sand cushion layer 14 is embedded on the surface of the lower ring beam 15, an upper ring beam 13 is built on the sand cushion layer 14, a concrete bottom plate 12 is cast on the upper ring beam 13, and a brick wall 11 of a house is built on the concrete bottom plate 12.

The working principle is as follows: the foundation base 16 of the building is separated from the superstructure (i.e. the concrete floor 12 and the brick walls 11) by means of a sand cushion 14, which is a low friction material, allowing the superstructure to slide horizontally relative to the whole base under the action of an earthquake, thereby achieving the seismic isolation objective. However, research shows that after the sand cushion shock insulation method is subjected to reciprocating friction sliding for a plurality of times, the gravel is crushed, the particle size is reduced, the upper friction surface and the lower friction surface which slide relatively are ground to be rough, the friction coefficient between the gravel and the gravel is increased, and effective shock insulation cannot be carried out.

As shown in fig. 2 and 3, a second embodiment of a low-cost seismic isolation structure for rural self-building in the prior art comprises a foundation base 16, wherein a lower gird 15 is built on the foundation base 16, an upper gird 13 is erected above the lower gird 15, a concrete bottom plate 12 is poured on the upper gird 13, and a brick wall 11 of a house is built on the concrete bottom plate; a plurality of steel bar groups are arranged between the upper ring beam 13 and the lower ring beam 15, one steel bar group contains a plurality of steel bars 18, the upper end and the lower end of each steel bar 18 are respectively anchored in the upper ring beam 13 and the lower ring beam 15, meanwhile, brick piers 19 with certain height are arranged in a space formed by the two adjacent steel bar groups, the upper ring beam 13 and the lower ring beam 15 in a surrounding manner, and a gap is reserved between each brick pier 19 and the upper ring beam 13 so as to ensure that the upper structure can not laterally move; the gap between the brick pier 19 and the reinforcing steel bar 18 is filled with asphalt paste to form an asphalt paste block 17, and the asphalt paste meets the basic requirement of not flowing in summer and not hardening in winter.

The working principle is as follows: when an earthquake occurs, the reinforcing bars 18 between the upper ring beam 13 and the lower ring beam 15 are in an elastic state and have horizontal restoring force, so that the upper structure (i.e., the brick walls 11 and the concrete bottom plate 12) and the upper ring beam 13 horizontally vibrate back and forth. At this time, because a large amount of earthquake energy is consumed by a plurality of steel bar groups, the earthquake action on the upper structure is very small, the damage of the structure is very small, even the structure is not damaged only by elastic deformation, and the purpose of small earthquake and no damage is achieved. When a rare earthquake occurs, the horizontal acting force applied to the steel bar 18 is greater than the yield strength of the steel bar, so that the steel bar 18 is bent irrecoverably; at this time, as the reinforcing steel bars 18 yield, the superstructure and the upper ring beam 13 fall on the brick pier 19 to continuously slide (at this time, no elastic restoring force exists), so that the earthquake energy is further consumed, and the purpose of falling down by large earthquakes is achieved.

Firstly, the two structures are shock insulation layers arranged between a shock insulation upper ring beam and a shock insulation lower ring beam, the arrangement mode can only ensure that the upper structure can slide relatively large displacement along the length direction of the ring beam, and when the maximum earthquake action direction is vertical to the length direction of the ground beam, the situation that the upper structure is separated from a foundation in a sliding mode is likely to occur; secondly, because above-mentioned isolation layer sets up the position that each superstructure links to each other with the ground basis, the slip plane on every isolation layer is relatively independent, and under the earthquake effect, the relative displacement or the deformation that superstructure slided on every isolation slip plane are probably the diverse, and this kind of isolation layer that mutually independent does not have fine wholeness, not only influences the whole effect of isolation to a certain extent, and its residual deformation has also brought huge difficulty for repairing after the earthquake in addition.

In order to overcome the existing problems in the prior art, the utility model provides a house shock insulation structure based on SBS pitch-two steel wire mesh slip planes guarantees shock insulation structure's wholeness when reducing the cost, improves shock insulation shock attenuation effect.

The invention will be further explained with reference to fig. 4-8 and the detailed description.

As shown in fig. 4-7, the utility model discloses a shock insulation structure includes a ground ring beam 5, a house superstructure 8 is built above the ground ring beam 5, a shock insulation bottom plate 2 is arranged below the ground ring beam 5, a layer of SBS pitch-twisted steel wire mesh 1 is laid between the ground ring beam 5 and the shock insulation bottom plate 2, a circle of limit baffle 7 is arranged around the shock insulation bottom plate 2, the shock insulation bottom plate 2 and the limit baffle 7 form a barrel-shaped structure, and a plurality of rubber buffer blocks 6 are evenly arranged inside the limit baffle 7; the inner side of the rubber buffer block 6 is abutted against the peripheral edge of the SBS pitch-twisted steel wire mesh 1. During masonry, the height of the top of the ground ring beam 5 is smaller than that of the top of the limit baffle 7, and the height of the top of the rubber buffer block 6 is consistent with that of the top of the limit baffle 7.

The SBS asphalt-twisted steel wire mesh 1 comprises two SBS modified asphalt layers 3 and a twisted steel wire mesh 4 arranged between the two SBS modified asphalt layers 3. The ground ring beam 5 is composed of ground beams which are arranged on the surface of the SBS pitch-twisted steel wire mesh 1 in a criss-cross mode, constructional columns 9 are further built at the staggered positions of the ground beams, and the constructional columns 9 can be used as bearing columns of an upper structure 8 of a house.

As shown in fig. 6, to save materials and reduce costs, the SBS asphalt-twisted steel wire mesh 1 is laid only under and around the ground beam of the ground girth beam 5.

The limiting baffle 7 is a reinforced concrete upset pier poured at the edge of the shock insulation base plate 2 and is used for preventing a building (for convenience of description, the ground ring beam 5 and the upper structure 8 are collectively called as the building) from being separated from the shock insulation base plate 2 when the building slides in a large displacement manner; the gap between the top of the rubber buffer block 6 and the upper structure of the building is provided with the cover plate 10, the cover plate is not fixedly connected with the limit baffle 7 during installation, the cover plate 10 can slide along with the building under the action of an earthquake, and the function of the cover plate is to prevent rainwater and foreign matters from entering the gap between the ground ring beam 5 and the rubber buffer block 6. The rubber buffer block 6 is made of chloroprene rubber, the elastic modulus is increased along with the increase of stress under the action of large deformation, namely the rubber buffer block has the characteristic of being firstly soft and then hard, and part of instantaneous and strong impact kinetic energy can be converted into the deformation potential energy of the buffer material, stored in the material and then slowly released at a lower frequency, so that huge impact force is effectively resisted.

The utility model discloses isolation structure's theory of operation as follows: the shock insulation layer formed by the two SBS modified asphalt layers 3 and the twisted steel wire mesh 4 arranged between the two SBS modified asphalt layers is used as a sliding support component to separate the building from the shock insulation base plate 2, the building is allowed to horizontally move relative to the shock insulation base plate 2 when an earthquake occurs, the earthquake energy is isolated through relative sliding between the shock insulation layer and the shock insulation layer, the self-vibration frequency of the structure is reduced, the self-vibration period of the structure is prolonged, the earthquake reaction of the upper structure of the building is reduced, and therefore the effect of isolating the earthquake is achieved. The method specifically comprises the following steps: as shown in fig. 8, the contact surface of the seismic isolation layer 1 and the ground ring beam 5 is not absolutely smooth, so that a certain initial horizontal rigidity k exists, when the horizontal earthquake action is small, the initial horizontal rigidity k can ensure that the structure has a certain anti-sliding force, the normal use of the structure cannot be influenced, and the seismic isolation bottom plate 2 and the building do not slide relatively; when the horizontal earthquake action is large, the building slides relatively on the shock insulation base plate 2, and the SBS modified asphalt layer 3 on the surface of the shock insulation layer can provide certain damping c to dissipate part of earthquake energy. Obviously, in the process, the natural vibration period of the structure is prolonged through the arrangement of the vibration isolation layer, so that the natural frequency of the structure is not in the frequency range with strong seismic energy. When the building sliding displacement is larger, the limiting baffle 7 can limit the maximum sliding amount, and the building is prevented from separating from the shock insulation bottom plate 2 when sliding in large displacement. Meanwhile, because the building mass of the sliding motion is large, the sliding motion has large kinetic energy, and when the building is in direct collision contact with the limit baffle 7, large impact force can be generated, so that the rubber buffer block 6 is arranged on the inner side of the limit baffle 7, impact energy can be consumed, and the harm caused by collision between the building and the limit baffle 7 can be effectively relieved.

Claims (3)

1. The utility model provides a house shock insulation structure based on SBS pitch-two steel wire mesh slip planes which characterized in that: the shock insulation base plate comprises a shock insulation base plate (2), a circle of limiting baffle plates (7) are arranged on the periphery of the shock insulation base plate (2), a layer of SBS asphalt-twisted steel wire mesh (1) is laid on the surface of the shock insulation base plate (2) on the inner side of each limiting baffle plate (7), and each SBS asphalt-twisted steel wire mesh (1) comprises two SBS modified asphalt layers (3) and a twisted steel wire mesh (4) arranged between the two SBS modified asphalt layers (3); a ring beam (5) is built on the SBS pitch-twisted steel wire mesh sheet (1), and an upper structure (8) of a house is fixed on the ring beam (5).

2. The house shock insulation structure based on SBS pitch-twisted steel wire mesh sliding surface of claim 1, wherein: the inner side of the limiting baffle (7) is uniformly provided with a plurality of rubber buffer blocks (6), and the inner side of each rubber buffer block (6) is abutted against the edges of the periphery of the SBS pitch-twisted steel wire mesh (1).

3. The house shock insulation structure based on SBS pitch-twisted steel wire mesh sliding surface of claim 1, wherein: a cover plate (10) is placed at the top of the limiting baffle (7), and the inner side edge of the cover plate (10) is abutted to the upper structure (8).

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