CN117536354A - Shock insulation support and installation and construction method thereof - Google Patents
Shock insulation support and installation and construction method thereof Download PDFInfo
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- CN117536354A CN117536354A CN202311735399.3A CN202311735399A CN117536354A CN 117536354 A CN117536354 A CN 117536354A CN 202311735399 A CN202311735399 A CN 202311735399A CN 117536354 A CN117536354 A CN 117536354A
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/36—Bearings or like supports allowing movement
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G19/00—Auxiliary treatment of forms, e.g. dismantling; Cleaning devices
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/18—Adjusting tools; Templates
- E04G21/1841—Means for positioning building parts or elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/24—Safety or protective measures preventing damage to building parts or finishing work during construction
- E04G21/246—Safety or protective measures preventing damage to building parts or finishing work during construction specially adapted for curing concrete in situ, e.g. by covering it with protective sheets
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/025—Structures with concrete columns
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Abstract
The invention provides a shock insulation support and an installation construction method thereof, which belong to the technical field of shock insulation supports and comprise an upper support pier, a lower support pier and a shock insulation rubber support, wherein the upper support pier is arranged at the top end of the shock insulation rubber support and is connected with the shock insulation rubber support, and the lower support pier is arranged at the bottom of the shock insulation rubber support and is connected with the shock insulation rubber support. According to the invention, the two flanges are arranged for up-down connection, and meanwhile, the bolts with the detachable structures are arranged for connection, so that the installation is simpler and more convenient, and meanwhile, the embedded bolts are arranged, so that the up-down connection can be well integrated, the safety performance is better, and the shifting situation can not occur.
Description
Technical Field
The invention relates to the technical field of shock insulation supports, in particular to a shock insulation support and an installation construction method thereof.
Background
In recent years, strong earthquakes frequently occur worldwide, and more typical are, for example, indonesia 7.9 grade earthquakes, new Zealand 7.0 grade earthquakes, japanese 9.0 grade earthquakes, and the like. These severe damages and profound earthquakes mark that the world has entered the active period of earthquakes. Although the improvement of the earthquake-proof fortification system of the building structure is greatly promoted, the earthquake-proof performance of the existing structure still has great defects.
Along with the deep concept of earthquake resistance and the frequent occurrence of earthquakes worldwide in recent years, the application of energy dissipation and vibration reduction technology is paid attention to when the earthquake resistance design is carried out on the structure in each country. However, at present, the research on the vibration isolation technology at home and abroad mainly stays on the single horizontal vibration isolation, and the research on the realization of the horizontal vibration isolation and the vertical vibration isolation at the same time is not common. While a large number of seismic hazards indicate that the effect of vertical earthquakes on structures is not negligible, its effect sometimes even exceeds that of horizontal earthquakes, and thus great attention must be paid to the vertical earthquake characteristics.
The current seismic reduction and isolation support is designed to resist large shocks, and the influence of aftershocks is not considered. The strong earthquake in the actual earthquake has larger energy but shorter duration, hundreds or even thousands of aftershocks exist after the earthquake, and the damage capability of the aftershock is weak but the damage capability of the structure is still not visible. Meanwhile, a general lead rubber support can generate larger residual displacement after stronger elastoplastic deformation, so that the post-earthquake resetting is difficult.
According to the current shockproof demand, need design one kind and can not take place the aversion, be can carry out the shock insulation support of effectual connection from top to bottom of house for the house has shockproof effect more.
Disclosure of Invention
The invention aims to provide a shock insulation support and an installation construction method thereof, which solve the technical problems that the existing shock insulation support is poor in shock insulation effect and easy to shift.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the upper buttress is arranged at the top end of the shock insulation rubber support and is connected with the shock insulation rubber support, and the lower buttress is arranged at the bottom of the shock insulation rubber support and is connected with the shock insulation rubber support;
the upper buttress comprises an upper buttress body, an upper buttress anchor rib, an upper buttress embedded sleeve, an upper flange plate and a flange plate side edge connecting part, wherein the upper buttress anchor rib is connected with a reinforced concrete structure of the upper buttress body, the upper buttress embedded sleeve is connected with the upper buttress anchor rib, the upper flange plate is arranged at the bottom of the upper buttress body, the side edge of the upper flange plate is arranged to be a flange plate side edge connecting part, bolt holes are formed in the flange plate side edge connecting part, fixing bolts are arranged to penetrate through the bolt holes of the flange plate side edge connecting part and are connected with the upper buttress embedded sleeve, and the upper flange plate is connected with a shock insulation rubber support.
Further, the lower buttress includes lower buttress body, lower flange board, locating plate, lower buttress pre-buried sleeve and lower buttress anchor bar, and lower buttress anchor bar is connected with the inside reinforced concrete structure of lower buttress body, and lower buttress pre-buried sleeve's one end is connected with lower buttress anchor bar, and lower flange board sets up at the top of lower buttress body, and the side of lower flange board is provided with lower flange board bolt hole, sets up fixing bolt and passes lower flange board bolt hole and lower buttress pre-buried sleeve connection, and the top of lower flange board is connected with shock insulation rubber support.
Further, be provided with the locating plate between lower flange board and the lower buttress body, the locating plate is pre-buried to be inlayed and establish in the upper end of lower buttress body and with lower buttress body, and the inboard of lower flange board bolt hole is provided with gluey sleeve, and gluey sleeve penetrates in the fixing bolt, gluey telescopic upper end is provided with the steel washer, is provided with central trompil in the middle of the locating plate, and the upper portion of lower buttress body is provided with additional reinforcing bar net, and additional reinforcing bar net is connected with lower buttress pre-buried sleeve.
Further, the shock insulation rubber support includes connecting axle and rubber body, and the rubber body sets up in the outside of connecting axle, and the connecting axle both ends are connected with last flange board and lower flange board.
The installation and construction method of the shock insulation support comprises the following steps:
step 1: and (3) construction of a bearing platform and a bottom plate: the lower buttress of the shock insulation support is constructed separately from the bearing platform and the bottom plate, the vertical steel bars of the lower buttress are pre-buried accurately before the concrete of the bottom plate of the bearing platform is poured, and the concrete is vibrated smoothly;
step 2: measuring and positioning: when the concrete strength of the bearing platform and the bottom plate reaches 1.2N/mm 2 When the method is used, measurement and positioning can be carried out, and in order to ensure that the plane center position of the shock insulation support is accurate, the projection of the center point of each shock insulation support is measured by adopting a total station, and the projection is calibrated on a concrete surface;
step 3: binding lower buttress steel bars: and installing upper reinforcing steel bars and peripheral reinforcing steel bars of the lower buttress. In order to ensure the accuracy of the positions of the embedded anchor bars, the positions of vertical projections of n embedded anchor bars of the shock insulation support are calibrated in advance on the concrete surface so as to avoid the situation that the embedded anchor bars are blocked by the main bars of the bearing platform after being placed, and the elevation of the top surface of the template is the same as that of the top surface of the lower buttress;
step 4: positioning and fixing the embedded sleeve and the embedded anchor bars, and positioning and fixing the embedded sleeve and the embedded anchor bars;
step 5: installing a lower buttress side die: installing a side die, wherein the height of the side die is slightly higher than the height of the top surface of the buttress, calibrating the position of the designed elevation of the top surface of the buttress on the side die by using a level meter, conveniently controlling the elevation of the buttress when concrete is poured, ensuring that the rigidity of the side die meets the requirements of side pressure and construction load of the newly poured concrete, encrypting a column hoop, ensuring tight joint of a template and firm fixation of the bottom;
step 6: pouring the lower buttress: the concrete is poured by adopting a non-pumping way, the concrete pump pipe is prevented from generating large impact on an embedded part, in the vibrating process, a vibrating rod cannot collide with and position an embedded plate and anchor bars, workers are prevented from trampling the embedded plate to prevent deviation of an axis, elevation and flatness from influencing installation quality, a 5-10 cm position is reserved below a concrete connecting plate for the first time, micro-expansion concrete pouring is performed for the second time within 1.5 hours after the first time, maintenance is started after the concrete pouring is finished, a lower buttress template is removed after a removal condition is achieved, and flatness and a review axis of a lower buttress embedded positioning plate are performed after the template is removed;
step 7: installing a shock insulation support: the method comprises the steps that after the concrete curing period, the installation of a shock insulation support can be carried out, the strength reaches more than or equal to 75% or the concrete strength is not less than 10N/mm < 2 >, before the shock insulation support is installed, the upper surface of a lower support pier is cleaned, in order to prevent sundries such as mortar and concrete from entering a sleeve hole, a bolt M1 and a rubber sleeve on a positioning embedded steel plate are firstly removed after the cleaning is finished, then the shock insulation support required by the position is lifted onto the support pier by an automobile crane or a tower crane according to site conditions, the support is lifted and slightly released, the concrete of the support pier and the lower support pier is prevented from being damaged, after the bolt hole position of a lower flange plate of the shock insulation support is aligned with the hole position of the embedded steel sleeve, the bolt M1 is screwed into the sleeve, a heavy hammer is strictly forbidden when the bolt M1 is connected, and after the installation of the shock insulation support is finished, the elevation and the plane center position of the shock insulation support are repeatedly measured by a total station and a level meter, and a table is recorded;
step 8: the upper embedded sleeve and the embedded anchor bars are fixed: the upper embedded anchor bars are connected with the sleeve, and then are connected to the shock insulation support by bolts M1;
step 9: installing an upper buttress bottom die: the casting concrete can generate vertical pressure on the bottom die, the bottom die can generate vertical deformation, and when the supporting rigidity of the bottom die is not enough large, the elevation of the top surface of the bottom die plate is higher than that of the top surface of the upper flange plate, so that the support flange plate is prevented from sinking into the upper buttress concrete after the casting and forming of the concrete;
step 10: binding the upper buttress steel bars: binding the upper buttress steel bars, the side supporting dies and pouring concrete in sequence. The construction method of the part is the same as the conventional method;
step 11: and (3) paint repairing of the flange plate: because the damage to the paint of the shock insulation support is unavoidable in the installation process and the formwork support and dismantling process of the shock insulation support, after the construction of the pier concrete is finished, the paint of the shock insulation support is repaired after the formwork is dismantled.
Further, the specific process of step 4 is as follows:
(1) The upper opening of the embedded steel sleeve and the lower opening of the rubber sleeve are screwed and fixed with a positioning embedded plate by high-strength bolts in advance, so that the thickness of a lower flange plate of a vibration isolation support is reserved for facilitating the installation of the support, the position of the sleeve is accurate, the elevation, the plane center position and the flatness of the positioning embedded plate are measured, the sleeve and the anchor bars are timely adjusted according to the deviation, the elevation and the plane center position of the positioning embedded plate are conveniently controlled, the mode of spot welding short steel bars on a lower buttress main bar corresponding to four corner positions of a template is adopted, the elevation of the top of the leveling bolt is the designed elevation of the buttress to be subtracted by the thickness of the positioning embedded plate, and the arrangement position of the leveling bolt is adopted;
(2) In order to ensure the anchoring length and vertical fixation of the embedded sleeve, the embedded anchor bars with threads are connected with the embedded sleeve;
(3) After the binding of the reinforcement cage of the lower buttress is completed, fixing 4 or 8 anchor bar sleeves of the embedded parts by using a template, twisting the high-strength bolts with the rubber sleeves into the embedded sleeves during fixing, ensuring that the bottoms of the embedded positioning templates are in close contact with the tops of the embedded sleeves, placing the fixed embedded plates on the reinforcement cage, and spot-welding and fixing the embedded anchor bars with main reinforcement of the buttress by connecting reinforcement bars after the central positions of the embedded plates are aligned;
the bolts only need to be screwed by hands, so that the bottom of the rubber sleeve and the top of the steel sleeve are clung to the template, and the anchoring steel bars of the embedded parts are required to be kept in a vertical state;
(4) In order to ensure the levelness of the embedded template, the accuracy of the plane position and the verticality of the embedded sleeve, the positioning steel bars are connected with the buttress steel bars by spot welding at the bottom of the anchor bars according to actual conditions so as to ensure that the anchor bars and the positioning embedded plates do not generate horizontal and vertical displacement;
(5) And measuring the elevation of the template and the center position of the plane, and welding and fixing the embedded part after alignment, wherein the embedded part and the lower buttress steel bars are welded by communicating the steel bars, so that the embedded part is prevented from deflecting and displacing in the concrete pouring process of the lower buttress.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
according to the invention, the two flanges are arranged for up-down connection, and meanwhile, the bolts with the detachable structures are arranged for connection, so that the installation is simpler and more convenient, and meanwhile, the embedded bolts are arranged, so that the up-down connection can be well integrated, the safety performance is better, and the shifting situation can not occur.
Drawings
FIG. 1 is a schematic view of a shock-insulating support structure of the present invention;
FIG. 2 is a schematic view of the construction of the lower buttress retention sleeve and the locating retention plate of the present invention.
In the drawings, a 1-upper buttress, a 2-upper buttress anchor rib, a 3-upper buttress embedded sleeve, a 4-upper flange plate, a 5-flange plate side edge connecting part, a 6-shock insulation rubber support, a 7-lower flange plate, an 8-positioning plate, a 9-lower buttress embedded sleeve, a 10-lower buttress anchor rib, a 11-lower buttress, a 12-connecting shaft, a 13-fixing bolt, a 14-steel washer, a 15-rubber sleeve and a 16-additional reinforcing steel bar net.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below by referring to the accompanying drawings and by illustrating preferred embodiments. It should be noted, however, that many of the details set forth in the description are merely provided to provide a thorough understanding of one or more aspects of the invention, and that these aspects of the invention may be practiced without these specific details.
The embodiment of the invention uses the engineering as the building purpose of a new medical rehabilitation service center of a traditional Chinese medicine hospital in Dechang county and a new traditional Chinese medicine teaching and research comprehensive building, is positioned in Dechang county town in Liangshan, sichuan province, and the two projects are built on a basement together, and the functions of the ground and underground building are used in intercommunication, so that the building is 1 building. The ground is divided into a left structural unit and a right structural unit by a vertical vibration isolation joint, wherein the building project of the traditional Chinese medicine and medical teaching and research comprehensive building in the Dechang county hospital is 1-6 axes (hereinafter expressed by a left structural unit), and the number of building layers is the layer, and the main use function is teaching and research and office; the construction project of the newly built medical rehabilitation service center of the traditional Chinese medicine hospital in Dechang county is 7-18 axes (hereinafter expressed by right structural units), the number of layers of the construction is 13, and the main use functions are rehabilitation and rehabilitation; the relative elevation of the building is 1350.30m, and the indoor and outdoor elevation difference is 0.600m.
The project upper structure adopts the shock insulation technology, totally comprises two basic plane regular structure monomers, and the shock insulation layer sets up below the building ground one deck basement roof above, and basement top board is the monomer building upper structure end of building (relative elevation-2.750 m department), and the shock insulation layer height is 2.7m, establishes 800mm wide vertical shock insulation seam between the monomer, and upper portion shock insulation structure sets up the horizontal isolation seam that link up entirely with lower part non-shock insulation structure, seam height 20mm. The project basement is not sewed to be a common large chassis basement. The left structural unit adopts a cast-in-place concrete frame structure, the right structural unit adopts a cast-in-place frame shear wall structure, and the single-layer basement adopts a cast-in-place frame shear wall structure. The rubber support is arranged between the upper buttress bottom and the lower buttress top, wherein LNR represents a natural rubber support, and LRB represents a rubber support with a lead core.
As shown in fig. 1-2, the shock insulation support comprises an upper support pier 1, a lower support pier 11 and a shock insulation rubber support 6, wherein the upper support pier 1 is arranged at the top end of the shock insulation rubber support 6 and is connected with the shock insulation rubber support 6, and the lower support pier 11 is arranged at the bottom of the shock insulation rubber support 6 and is connected with the shock insulation rubber support 6;
the upper buttress 1 comprises an upper buttress body, an upper buttress anchor rib 2, an upper buttress pre-buried sleeve 3, an upper flange plate 4 and a flange plate side connecting part 5, wherein the upper buttress anchor rib 2 is connected with a reinforced concrete structure of the upper buttress body, the upper buttress pre-buried sleeve 3 is connected with the upper buttress anchor rib 2, the upper flange plate 4 is arranged at the bottom of the upper buttress body, the side edge of the upper flange plate 4 is arranged to be the flange plate side connecting part 5, bolt holes are formed in the flange plate side connecting part 5, fixing bolts 13 are arranged to penetrate through the bolt holes of the flange plate side connecting part 5 and are connected with the upper buttress pre-buried sleeve 3, and the upper flange plate 4 is connected with a shock insulation rubber support 6.
In the embodiment of the invention, the lower buttress 11 comprises a lower buttress body, a lower flange plate 7, a positioning plate 8, a lower buttress embedded sleeve 9 and a lower buttress anchor bar 10, wherein the lower buttress anchor bar 10 is connected with a reinforced concrete structure in the lower buttress body, one end of the lower buttress embedded sleeve 9 is connected with the lower buttress anchor bar 10, the lower flange plate 7 is arranged at the top of the lower buttress body, lower flange plate bolt holes are arranged on the side edges of the lower flange plate 7, fixing bolts 13 are arranged to penetrate through the lower flange plate bolt holes and are connected with the lower buttress embedded sleeve 9, and the top of the lower flange plate 7 is connected with the shock insulation rubber support 6.
In the embodiment of the invention, a positioning plate 8 is arranged between a lower flange plate 7 and a lower buttress body, the positioning plate (8) is embedded in the upper end of the lower buttress body and is opposite to the lower buttress body, a rubber sleeve 15 is arranged on the inner side of a bolt hole of the lower flange plate, the rubber sleeve 15 penetrates into a fixing bolt 13, a steel washer 14 is arranged at the upper end of the rubber sleeve 15, a central opening is arranged in the middle of the positioning plate 8, an additional reinforcing steel bar net 16 is arranged at the upper part of the lower buttress body, and the additional reinforcing steel bar net 16 is connected with a lower buttress embedded sleeve 9.
In the embodiment of the invention, the shock insulation rubber support 6 comprises a connecting shaft 12 and a rubber body, wherein the rubber body is arranged on the outer side of the connecting shaft 12, and two ends of the connecting shaft 12 are connected with the upper flange plate 4 and the lower flange plate 7.
The installation and construction method of the shock insulation support comprises the following steps:
step 1: and (3) construction of a bearing platform and a bottom plate: the lower buttress of the shock insulation support is constructed separately from the bearing platform and the bottom plate, the vertical steel bars of the lower buttress are pre-buried accurately before the concrete of the bottom plate of the bearing platform is poured, and the concrete is vibrated smoothly;
step 2: measuring and positioning: when the concrete strength of the bearing platform and the bottom plate reaches 1.2N/mm 2 When the method is used, measurement and positioning can be carried out, and in order to ensure that the plane center position of the shock insulation support is accurate, the projection of the center point of each shock insulation support is measured by adopting a total station, and the projection is calibrated on a concrete surface;
step 3: binding lower buttress steel bars: and installing upper reinforcing steel bars and peripheral reinforcing steel bars of the lower buttress. In order to ensure the accuracy of the positions of the embedded anchor bars, the positions of vertical projections of n embedded anchor bars of the shock insulation support are calibrated in advance on the concrete surface so as to avoid the situation that the embedded anchor bars are blocked by the main bars of the bearing platform after being placed, and the elevation of the top surface of the template is the same as that of the top surface of the lower buttress;
step 4: positioning and fixing the embedded sleeve and the embedded anchor bars, and positioning and fixing the embedded sleeve and the embedded anchor bars;
step 5: installing a lower buttress side die: installing a side die, wherein the height of the side die is slightly higher than the height of the top surface of the buttress, calibrating the position of the designed elevation of the top surface of the buttress on the side die by using a level meter, conveniently controlling the elevation of the buttress when concrete is poured, ensuring that the rigidity of the side die meets the requirements of side pressure and construction load of the newly poured concrete, encrypting a column hoop, ensuring tight joint of a template and firm fixation of the bottom;
step 6: pouring the lower buttress: the concrete is poured by adopting a non-pumping way, the concrete pump pipe is prevented from generating large impact on an embedded part, in the vibrating process, a vibrating rod cannot collide with and position an embedded plate and anchor bars, workers are prevented from trampling the embedded plate to prevent deviation of an axis, elevation and flatness from influencing installation quality, a 5-10 cm position is reserved below a concrete connecting plate for the first time, micro-expansion concrete pouring is performed for the second time within 1.5 hours after the first time, maintenance is started after the concrete pouring is finished, a lower buttress template is removed after a removal condition is achieved, and flatness and a review axis of a lower buttress embedded positioning plate are performed after the template is removed;
step 7: installing a shock insulation support: the method comprises the steps that after the concrete curing period, the installation of a shock insulation support can be carried out, the strength reaches more than or equal to 75% or the concrete strength is not less than 10N/mm < 2 >, before the shock insulation support is installed, the upper surface of a lower support pier is cleaned, in order to prevent sundries such as mortar and concrete from entering a sleeve hole, a bolt M1 and a rubber sleeve on a positioning embedded steel plate are firstly removed after the cleaning is finished, then the shock insulation support required by the position is lifted onto the support pier by an automobile crane or a tower crane according to site conditions, the support is lifted and slightly released, the concrete of the support pier and the lower support pier is prevented from being damaged, after the bolt hole position of a lower flange plate of the shock insulation support is aligned with the hole position of the embedded steel sleeve, the bolt M1 is screwed into the sleeve, a heavy hammer is strictly forbidden when the bolt M1 is connected, and after the installation of the shock insulation support is finished, the elevation and the plane center position of the shock insulation support are repeatedly measured by a total station and a level meter, and a table is recorded;
step 8: the upper embedded sleeve and the embedded anchor bars are fixed: the upper embedded anchor bars are connected with the sleeve, and then are connected to the shock insulation support by bolts M1;
step 9: installing an upper buttress bottom die: the casting concrete can generate vertical pressure on the bottom die, the bottom die can generate vertical deformation, and when the supporting rigidity of the bottom die is not enough large, the elevation of the top surface of the bottom die plate is higher than that of the top surface of the upper flange plate, so that the support flange plate is prevented from sinking into the upper buttress concrete after the casting and forming of the concrete;
step 10: binding the upper buttress steel bars: binding the upper buttress steel bars, the side supporting dies and pouring concrete in sequence. The construction method of the part is the same as the conventional method;
step 11: and (3) paint repairing of the flange plate: because the damage to the paint of the shock insulation support is unavoidable in the installation process and the formwork support and dismantling process of the shock insulation support, after the construction of the pier concrete is finished, the paint of the shock insulation support is repaired after the formwork is dismantled.
The specific process of the step 4 is as follows:
(1) The upper opening of the embedded steel sleeve and the lower opening of the rubber sleeve are screwed and fixed with a positioning embedded plate by high-strength bolts in advance, so that the thickness of a lower flange plate of a vibration isolation support is reserved for facilitating the installation of the support, the position of the sleeve is accurate, the elevation, the plane center position and the flatness of the positioning embedded plate are measured, the sleeve and the anchor bars are timely adjusted according to the deviation, the elevation and the plane center position of the positioning embedded plate are conveniently controlled, the mode of spot welding short steel bars on a lower buttress main bar corresponding to four corner positions of a template is adopted, the elevation of the top of the leveling bolt is the designed elevation of the buttress to be subtracted by the thickness of the positioning embedded plate, and the arrangement position of the leveling bolt is adopted;
(2) In order to ensure the anchoring length and vertical fixation of the embedded sleeve, the embedded anchor bars with threads are connected with the embedded sleeve;
(3) After the binding of the reinforcement cage of the lower buttress is completed, fixing 4 or 8 anchor bar sleeves of the embedded parts by using a template, twisting the high-strength bolts with the rubber sleeves into the embedded sleeves during fixing, ensuring that the bottoms of the embedded positioning templates are in close contact with the tops of the embedded sleeves, placing the fixed embedded plates on the reinforcement cage, and spot-welding and fixing the embedded anchor bars with main reinforcement of the buttress by connecting reinforcement bars after the central positions of the embedded plates are aligned;
the bolts only need to be screwed by hands, so that the bottom of the rubber sleeve and the top of the steel sleeve are clung to the template, and the anchoring steel bars of the embedded parts are required to be kept in a vertical state;
(4) In order to ensure the levelness of the embedded template, the accuracy of the plane position and the verticality of the embedded sleeve, the positioning steel bars are connected with the buttress steel bars by spot welding at the bottom of the anchor bars according to actual conditions so as to ensure that the anchor bars and the positioning embedded plates do not generate horizontal and vertical displacement;
(5) And measuring the elevation of the template and the center position of the plane, and welding and fixing the embedded part after alignment, wherein the embedded part and the lower buttress steel bars are welded by communicating the steel bars, so that the embedded part is prevented from deflecting and displacing in the concrete pouring process of the lower buttress.
The construction requirements are as follows:
and the bidirectional axis of the lower buttress and the buttress template control line are correctly guided and sprung to the base top, and the elevation guiding mark is positioned at the firm position of the pit bottom, so that the retest of the horizontal displacement and the elevation is facilitated.
And adjusting the main reinforcement of the lower buttress, putting the stirrups of the lower buttress according to the design requirement (binding after the positioning steel plates are installed and fixed), sleeving, installing the anchor bars according to the design specification and length, and placing the positioning steel plates on the frame body to enable the horizontal positions of the anchor bars and the elevation to meet the design requirement.
3. And (3) horizontal control: four corners are welded on the main reinforcement or the corner reinforcement of the steel bar by M12 leveling bolts (the main reinforcement cannot be burnt)
The defects of the ribs or welding quality), the control elevation of the positioning steel plate is guided to the leveling bolt, and then the leveling instrument is used for leveling water
And (5) measuring and controlling the level height.
4. Axis control: the positioning steel plate ejects the cross center line, longitudinal and transverse pull-through long axes among the rows of columns (the length of the through lines among the columns is controlled within 20 meters, so that wind interference is prevented), and the two-way cross center line of the positioning steel plate is matched with the through long axes.
5. The anchor bars of the positioning steel plates are connected by phi 20 steel bars, and the anchor bars are connected with column steel bars by spot welding as far as possible (the column steel bars cannot be burnt), so that horizontal displacement of the positioning steel plates and floating of the buried plates during concrete pouring are prevented, and elevation errors are generated. The monitoring of the axis and elevation is noted when connecting the reinforcing bars, and if displacement or change exists, the correction is carried out at any time.
6. After the installation work of the positioning steel plates of the shock insulation support is carried out one by one according to the method, the stirrups of the lower buttress are bound according to the design requirement, and the positioning steel plates and the anchor bars are not disturbed when the working procedure is constructed, if stirrups or horizontal stirrups exist
The positions of the net sheet bars and the anchor bars are contradicted, and the positions of the net sheet bars and the anchor bars can be slightly adjusted, if the stirrups need to be cut off, welding and repairing are needed
The stirrup is forced to form a closed.
7. After the binding of the steel bars of the lower buttress is finished, installing a buttress template, wherein the template installation height is higher than that of the lower buttress
Raised by 100mm and tightly reinforced with template control lines.
8. After the installation and reinforcement of the positioning steel plate and the installation of the steel bars and the templates are completed, the vibration isolation positioning steel plate before pouring is subjected to primary measurement and recording of the axis and the elevation before concrete pouring, and the two-way through axis is required to be rechecked and recorded.
9. When concrete is poured, a 50mm vibrating rod is used for pouring, the vibrating rod is vibrated at the middle part of a positioning steel plate (phi 250 pouring holes are formed in the positioning steel plate), the positions of anchor bars and connecting bars are noticed when the vibrating rod is obliquely inserted, the displacement caused by overlarge impact is prevented, concrete needs to cover the positioning steel plate, the periphery of the concrete is 5-10mm higher than the lower plate surface of the positioning steel plate and is not higher than the upper plate surface of the positioning steel plate, special persons are arranged to tap the plate surface of each part of the positioning steel plate by a small hammer, the tight connection of the concrete below the plate and the steel plate is ensured, if the steel plate is knocked to have crisp sound, the steel bar is used for oblique tamping, air is ensured to overflow, finally, redundant concrete is cleaned and the surface is collected, and an operator can not stand on the buried plate for operation, if the displacement or the positioning plate is found to be loose and shake, and relevant persons on site are notified at any time for correction treatment.
10. And (3) carrying out retest on the axis and the elevation once after concrete pouring, wherein the retest result reaches the design requirement, and after the concrete reaches 75% of the design strength value (the anchor bars are disturbed when the strength is lower), the anchor bars, the embedded sleeve and the like of the anti-seismic support and the upper support pier can be arranged.
11. After the installation of the shock insulation support is finished and the bolts are screwed in the beginning, the buttress steel bars and the templates are installed, the necessary protection (plastic film winding is used for the rubber support body, the high-strength bolts are temporarily wrapped and stuck by adhesive tapes) is carried out on the shock insulation support before the templates are installed, and the shock insulation support is prevented from being polluted or damaged when the buttress concrete is poured.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (6)
1. A shock insulation branch, characterized in that: the hydraulic shock absorber comprises an upper buttress (1), a lower buttress (11) and a shock insulation rubber support (6), wherein the upper buttress (1) is arranged at the top end of the shock insulation rubber support (6) and is connected with the shock insulation rubber support (6), and the lower buttress (11) is arranged at the bottom of the shock insulation rubber support (6) and is connected with the shock insulation rubber support (6);
the upper buttress (1) comprises an upper buttress body, an upper buttress anchor rib (2), an upper buttress embedded sleeve (3), an upper flange plate (4) and a flange plate side edge connecting part (5), wherein the upper buttress anchor rib (2) is connected with a reinforced concrete structure of the upper buttress body, the upper buttress embedded sleeve (3) is connected with the upper buttress anchor rib (2), the upper flange plate (4) is arranged at the bottom of the upper buttress body, the side edge of the upper flange plate (4) is provided with the flange plate side edge connecting part (5), the flange plate side edge connecting part (5) is provided with a bolt hole, a fixing bolt (13) is arranged to penetrate through the bolt hole of the flange plate side edge connecting part (5) and be connected with the upper buttress embedded sleeve (3), and the upper flange plate (4) is connected with a shock insulation rubber support (6).
2. A shock mount according to claim 1, wherein: the lower buttress (11) comprises a lower buttress body, a lower flange plate (7), a positioning plate (8), a lower buttress embedded sleeve (9) and a lower buttress anchor bar (10), wherein the lower buttress anchor bar (10) is connected with a reinforced concrete structure inside the lower buttress body, one end of the lower buttress embedded sleeve (9) is connected with the lower buttress anchor bar (10), the lower flange plate (7) is arranged at the top of the lower buttress body, lower flange plate bolt holes are formed in the side edges of the lower flange plate (7), fixing bolts (13) are arranged to penetrate through the lower flange plate bolt holes and are connected with the lower buttress embedded sleeve (9), and the top of the lower flange plate (7) is connected with a shock insulation rubber support (6).
3. A shock mount according to claim 2, wherein: be provided with locating plate (8) between lower flange board (7) and the lower buttress body, locating plate (8) are pre-buried to be inlayed and establish in the upper end of lower buttress body and be equal with lower buttress body, the inboard of lower flange board bolt hole is provided with glue sleeve (15), glue sleeve (15) penetrate in fixing bolt (13), the upper end of glue sleeve (15) is provided with steel packing ring (14), be provided with central trompil in the middle of locating plate (8), the upper portion of lower buttress body is provided with additional reinforcing bar net (16), additional reinforcing bar net (16) are connected with lower buttress pre-buried sleeve (9).
4. A shock mount according to claim 3, wherein: the shock insulation rubber support (6) comprises a connecting shaft (12) and a rubber body, wherein the rubber body is arranged on the outer side of the connecting shaft (12), and two ends of the connecting shaft (12) are connected with the upper flange plate (4) and the lower flange plate (7).
5. The installation and construction method of a shock insulation support according to any one of claims 1 to 4, wherein: the method comprises the following steps:
step 1: and (3) construction of a bearing platform and a bottom plate: the lower buttress of the shock insulation support is constructed separately from the bearing platform and the bottom plate, the vertical steel bars of the lower buttress are pre-buried accurately before the concrete of the bottom plate of the bearing platform is poured, and the concrete is vibrated smoothly;
step 2: measuring and positioning: when the concrete strength of the bearing platform and the bottom plate reaches 1.2N/mm 2 When the method is used, measurement and positioning can be carried out, and in order to ensure that the plane center position of the shock insulation support is accurate, the projection of the center point of each shock insulation support is measured by adopting a total station, and the projection is calibrated on a concrete surface;
step 3: binding lower buttress steel bars: and installing upper reinforcing steel bars and peripheral reinforcing steel bars of the lower buttress. In order to ensure the accuracy of the positions of the embedded anchor bars, the positions of vertical projections of n embedded anchor bars of the shock insulation support are calibrated in advance on the concrete surface so as to avoid the situation that the embedded anchor bars are blocked by the main bars of the bearing platform after being placed, and the elevation of the top surface of the template is the same as that of the top surface of the lower buttress;
step 4: positioning and fixing the embedded sleeve and the embedded anchor bars, and positioning and fixing the embedded sleeve and the embedded anchor bars;
step 5: installing a lower buttress side die: installing a side die, wherein the height of the side die is slightly higher than the height of the top surface of the buttress, calibrating the position of the designed elevation of the top surface of the buttress on the side die by using a level meter, conveniently controlling the elevation of the buttress when concrete is poured, ensuring that the rigidity of the side die meets the requirements of side pressure and construction load of the newly poured concrete, encrypting a column hoop, ensuring tight joint of a template and firm fixation of the bottom;
step 6: pouring the lower buttress: the concrete is poured by adopting a non-pumping way, the concrete pump pipe is prevented from generating large impact on an embedded part, in the vibrating process, a vibrating rod cannot collide with and position an embedded plate and anchor bars, workers are prevented from trampling the embedded plate to prevent deviation of an axis, elevation and flatness from influencing installation quality, a 5-10 cm position is reserved below a concrete connecting plate for the first time, micro-expansion concrete pouring is performed for the second time within 1.5 hours after the first time, maintenance is started after the concrete pouring is finished, a lower buttress template is removed after a removal condition is achieved, and flatness and a review axis of a lower buttress embedded positioning plate are performed after the template is removed;
step 7: installing a shock insulation support: the method comprises the steps that after the concrete curing period, the installation of a shock insulation support can be carried out, the strength reaches more than or equal to 75% or the concrete strength is not less than 10N/mm < 2 >, before the shock insulation support is installed, the upper surface of a lower support pier is cleaned, in order to prevent sundries such as mortar and concrete from entering a sleeve hole, a bolt M1 and a rubber sleeve on a positioning embedded steel plate are firstly removed after the cleaning is finished, then the shock insulation support required by the position is lifted onto the support pier by an automobile crane or a tower crane according to site conditions, the support is lifted and slightly released, the concrete of the support pier and the lower support pier is prevented from being damaged, after the bolt hole position of a lower flange plate of the shock insulation support is aligned with the hole position of the embedded steel sleeve, the bolt M1 is screwed into the sleeve, a heavy hammer is strictly forbidden when the bolt M1 is connected, and after the installation of the shock insulation support is finished, the elevation and the plane center position of the shock insulation support are repeatedly measured by a total station and a level meter, and a table is recorded;
step 8: the upper embedded sleeve and the embedded anchor bars are fixed: the upper embedded anchor bars are connected with the sleeve, and then are connected to the shock insulation support by bolts M1;
step 9: installing an upper buttress bottom die: the casting concrete can generate vertical pressure on the bottom die, the bottom die can generate vertical deformation, and when the supporting rigidity of the bottom die is not enough large, the elevation of the top surface of the bottom die plate is higher than that of the top surface of the upper flange plate, so that the support flange plate is prevented from sinking into the upper buttress concrete after the casting and forming of the concrete;
step 10: binding the upper buttress steel bars: binding the upper buttress steel bars, the side supporting dies and pouring concrete in sequence. The construction method of the part is the same as the conventional method;
step 11: and (3) paint repairing of the flange plate: because the damage to the paint of the shock insulation support is unavoidable in the installation process and the formwork support and dismantling process of the shock insulation support, after the construction of the pier concrete is finished, the paint of the shock insulation support is repaired after the formwork is dismantled.
6. The method for installing and constructing the shock-insulating support according to claim 5, wherein the method comprises the following steps: the specific process of the step 4 is as follows:
(1) The upper opening of the embedded steel sleeve and the lower opening of the rubber sleeve are screwed and fixed with a positioning embedded plate by high-strength bolts in advance, so that the thickness of a lower flange plate of a vibration isolation support is reserved for facilitating the installation of the support, the position of the sleeve is accurate, the elevation, the plane center position and the flatness of the positioning embedded plate are measured, the sleeve and the anchor bars are timely adjusted according to the deviation, the elevation and the plane center position of the positioning embedded plate are conveniently controlled, the mode of spot welding short steel bars on a lower buttress main bar corresponding to four corner positions of a template is adopted, the elevation of the top of the leveling bolt is the designed elevation of the buttress to be subtracted by the thickness of the positioning embedded plate, and the arrangement position of the leveling bolt is adopted;
(2) In order to ensure the anchoring length and vertical fixation of the embedded sleeve, the embedded anchor bars with threads are connected with the embedded sleeve;
(3) After the binding of the reinforcement cage of the lower buttress is completed, fixing 4 or 8 anchor bar sleeves of the embedded parts by using a template, twisting the high-strength bolts with the rubber sleeves into the embedded sleeves during fixing, ensuring that the bottoms of the embedded positioning templates are in close contact with the tops of the embedded sleeves, placing the fixed embedded plates on the reinforcement cage, and spot-welding and fixing the embedded anchor bars with main reinforcement of the buttress by connecting reinforcement bars after the central positions of the embedded plates are aligned;
the bolts only need to be screwed by hands, so that the bottom of the rubber sleeve and the top of the steel sleeve are clung to the template, and the anchoring steel bars of the embedded parts are required to be kept in a vertical state;
(4) In order to ensure the levelness of the embedded template, the accuracy of the plane position and the verticality of the embedded sleeve, the positioning steel bars are connected with the buttress steel bars by spot welding at the bottom of the anchor bars according to actual conditions so as to ensure that the anchor bars and the positioning embedded plates do not generate horizontal and vertical displacement;
(5) And measuring the elevation of the template and the center position of the plane, and welding and fixing the embedded part after alignment, wherein the embedded part and the lower buttress steel bars are welded by communicating the steel bars, so that the embedded part is prevented from deflecting and displacing in the concrete pouring process of the lower buttress.
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| CN117966901A (en) * | 2024-03-28 | 2024-05-03 | 中铁城建集团第一工程有限公司 | Laminated rubber shock insulation support and construction process thereof |
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