CN111395798A - Lever type jacking fixed building guide rail translation device and construction method - Google Patents
Lever type jacking fixed building guide rail translation device and construction method Download PDFInfo
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- CN111395798A CN111395798A CN202010226253.6A CN202010226253A CN111395798A CN 111395798 A CN111395798 A CN 111395798A CN 202010226253 A CN202010226253 A CN 202010226253A CN 111395798 A CN111395798 A CN 111395798A
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- 238000013519 translation Methods 0.000 title claims abstract description 159
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- 229910000831 Steel Inorganic materials 0.000 claims description 182
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Abstract
The invention provides a lever type jacking fixed building guide rail translation device and a construction method, wherein the lever type jacking fixed building guide rail translation device comprises the following steps: a track system disposed on a translation path of the building structure; the pushing system is arranged on the track system, and the front end of the pushing system is connected with the building structure; and the rear end of the pushing system is connected with the fixing device. The invention provides an innovative, stable, safe, efficient, convenient and reusable novel building translation device, which can solve the problems of irregularity, low efficiency, high energy consumption and the like in the construction of building translation engineering and overcome the defects of the prior art.
Description
Technical Field
The invention relates to a lever type jacking and fixing building guide rail translation device and a construction method.
Background
Along with the development of economic society of China, the urbanization process is gradually changed from the development of new cities to the update of cities, and particularly in first-line and second-line cities and a plurality of historical culture famous cities of China, the secondary development of historical protection buildings gradually becomes a new development direction. The purpose of city updating is to develop and utilize city space as much as possible and change and expand land functions on the basis of not changing the social and cultural features of the existing buildings or building groups. City renovation projects, while injecting new vitality for city development, inevitably require temporary or permanent changes in the location of existing building structures without destroying their structural characteristics. Therefore, the translation engineering of the existing building meets the requirements of current social development and urban updating scientific and technological progress, and an efficient, safe and green translation technology of the existing building is urgently needed to be provided.
The existing building translation engineering technology generally adopts methods such as idler wheels, polytetrafluoroethylene plates and the like to provide translation guide, and adopts mechanical methods such as hydraulic cylinders and the like to provide horizontal force required by translation.
Disclosure of Invention
The invention aims to provide a lever type building guide rail translation device capable of being tightly pressed and fixed and a construction method.
In order to solve the above problems, the present invention provides a lever-type building guide rail translation device with tightly fixed top, comprising: a rail system arranged on the translation path of the building structure 4;
the pushing system is arranged on the track system, and the front end of the pushing system is connected with the building structure 4;
and the rear end of the pushing system is connected with the fixing device.
Further, in the above device, the fixing device and the pushing system are paired one by one; in the pushing and translating stage of the building structure 4, a plurality of groups of pushing systems are connected in parallel and jointly push the same building structure 4 to generate horizontal displacement along the direction of the rail system, and each group of pushing systems is reversely supported and fixed in the horizontal direction by one set of fixing system.
Further, in the above apparatus, the rail 1 includes a linear rail, a curved rail, and a circular arrangement rail.
Further, in the above apparatus, the rail system includes: a steel rail 1, a steel rail fixing bolt 2, a concrete foundation platform 3 and a translation rail car 5, wherein,
the concrete foundation platform 3 is a bearing foundation platform which is positioned below the building structure 4 and is a reinforced concrete plate structure with a preset thickness, the upper surface of the concrete foundation platform 3 is horizontal, a strip-shaped rib beam with a preset height is arranged at a position on the upper surface of the concrete foundation platform 3 for laying the steel rail 1, and the site area of the concrete foundation platform 3 is larger than and comprises the sum of the area before translation, the area after translation and the area after translation of the building structure 4;
the steel rails 1 are guiding and bearing parts for the translation of a building structure 4 and are made of steel I-shaped steel, a plurality of steel rails 1 are fixed on the upper part of the concrete foundation platform 3 in parallel by steel rail fixing bolts 2, and the steel rail fixing bolts 2 are fixed on the upper part of the strip-shaped rib beam in parallel;
the steel rail fixing bolts 2 are equidistantly distributed on two sides of the steel rail 1, the lower ends of the steel rail fixing bolts 2 are driven into a concrete foundation platform 3 to a preset depth, and the upper ends of the steel rail fixing bolts 2 clamp the lower edge of the steel rail 1 through steel clamping pieces;
the bottom of the translation rail car 5 is provided with a plurality of steel wheels, the specifications of the steel wheels are consistent with those of the steel rails 1, and the translation rail cars 5 in preset number are uniformly arranged at the bottom of the building structure 4 to transfer the gravity load of the building structure 4 to the steel rails 1.
Further, in the above device, the length of the steel rail 1 is slightly shorter than the length of the concrete foundation platform 3 in the translation direction.
Further, in the above apparatus, the pusher system comprises: a pushing support 6, a hydraulic oil cylinder 7 and an oil cylinder translation rail car 11, wherein,
the pushing support 6 is a steel component fixed at the back of the bottom of the building structure 4, and a clamp connected with an oil cylinder telescopic rod 8 of the hydraulic oil cylinder 7 is arranged on the pushing support 6;
the hydraulic oil cylinder 7 is a power unit for pushing the building structure 4 to translate along the steel rail 1, the oil cylinder telescopic rod 8 extends out of the hydraulic oil cylinder 7, the telescopic rod front buckle 10 is located at the front end of the oil cylinder telescopic rod 8, the telescopic rod front buckle 10 is connected with the pushing support 6 through a fixing pin, and the oil cylinder rear buckle 9 is located at the rear end of the hydraulic oil cylinder 7 and connected with the oil cylinder translation rail car 11 through a fixing pin;
the oil cylinder translation rail car 11 is a movable part installed on the steel rail 1, a clamp connected with the hydraulic oil cylinder 7 is arranged at the upper part of the oil cylinder translation rail car 11, the push-pull rod 12 is horizontally fixed at the rear part of the oil cylinder translation rail car 11, the push-pull rod 12 is an inverted F-shaped steel component, and an inverted F-shaped gripper of the inverted F-shaped steel component upwards buckles the fixing device.
Further, in the above apparatus, the fixing means includes: a tightening lever 13, a rail clamp 17, an anti-roll frame 18 and a rotating shaft fixing seat 19, wherein,
the steel rail clamp 17 is a steel component provided with a necking clamp, and the steel rail clamp 17 is sleeved on the steel rail 1 through the necking clamp and only horizontally moves along one direction of the steel rail 1;
a fixing hole penetrating through a rotating shaft 15 of the jacking lever 13 is reserved on the rotating shaft fixing seat 19, the rotating shaft 15 is used for enabling the jacking lever 13 to rotate around the position of the fixing hole, and each rotating shaft fixing seat 19 is respectively connected and fixed with a corresponding steel rail clamp 17 to form a rigid platform structure moving back and forth along the steel rail 1;
the jacking lever 13 is made of L steel, the long side and the short side of L steel are vertical, a push-pull shaft 14, a rotating shaft 15 and a friction pad 16 are firmly fixed on the jacking lever 13, wherein,
the push-pull shaft 14 is positioned above the long edge of the jacking lever 13;
the rotating shaft 15 is positioned at the connecting corner of the edge and the short edge of the jacking lever 13;
the friction pad 16 is positioned below the short edge of the jacking lever 13, and an inverted F-shaped hand grip of the push-pull rod 12 of the jacking system buckles the push-pull shaft 14; the friction pad 16 is a sheet-shaped member with a frosted surface, and the lower part of the friction pad 16 is tightly contacted with the steel rail 1;
the anti-tilting frame 18 is a steel bracket, is mounted on the steel rail clamp 17, and is used for preventing the jacking lever 13 from tilting forwards.
Further, in the device, the horizontal force of the hydraulic oil cylinder 7 is transmitted to the horizontal acting force at the upper end of the jacking lever 13 through the push-pull rod 12, the horizontal acting force is amplified to be the vertical acting force for jacking the friction gasket 16 at the lower end of the jacking lever 13 and the steel rail 1 according to the lever principle through the jacking lever 13, the amplification factor k of the jacking lever 13 is the ratio of the distance from the center of the rotating shaft 15 to the center of the push-pull rod 12 to the distance from the center of the rotating shaft 15 to the center of the friction gasket 16, and the vertical acting force for jacking the friction gasket 16 and the steel rail 1 provides horizontal friction force which is used as the horizontal acting force in the direction for balancing the translation of the building; the static friction coefficient mu of the contact between the friction pad 16 and the steel rail 1 is larger than the amplification coefficient k of the abutting lever 13, so that only static friction is sent between the friction pad 16 and the steel rail 1 under the action of horizontal force provided by the hydraulic oil cylinder 7, and relative sliding and displacement are avoided.
According to another aspect of the invention, the building translation construction method adopting the lever type tightly-jacking fixed building guide rail translation device further comprises the following steps:
firstly, cleaning the position of a building structure 4 after translation and a field of a sweeping area in the translation process, carrying out foundation treatment and foundation construction on a fixed position of the building structure 4 after translation according to design requirements, and carrying out foundation treatment and foundation reinforcement on the sweeping area through which the building structure 4 passes in the translation process according to the design requirements to form a coherent concrete foundation platform 3;
step two, reinforcing the internal structure and the bottom structure of the building structure 4 according to the design requirement, so that the building structure 4 has enough rigidity and does not generate structural damage and large deformation in the process of jacking and integral translation of the structure;
thirdly, cutting off the structural connection between the building structure 4 and the building foundation at the lower part of the building structure, connecting the building foundation and the concrete foundation platform 3 into a whole, jacking the whole building structure 4 to a preset height, and forming a space for laying a steel rail 1 of a track system between the lower part of the building structure 4 and the building foundation;
fourthly, paving parallel steel rails 1 below the original position of the building structure 4, in the translation sweeping interval and in the region after the preset translation according to design requirements, and firmly fixing the steel rails 1 on a concrete foundation platform 3 by adopting steel rail fixing bolts 2;
installing a pushing system and a fixing device on the steel rail 1 according to a design scheme, connecting and fixing the fixing device and a rear oil cylinder buckle 9 of the pushing system, installing a pushing support 6 of the pushing system on the side surface of the bottom of the building structure 4, and connecting and fixing the pushing support 6 and a front telescopic rod buckle 10 of the pushing system;
sixthly, controlling the hydraulic oil cylinders 7 of all the pushing systems to extend through the control system according to the design scheme, and horizontally moving the pushing building structure 4 along the direction of the steel rail 1;
seventhly, after the hydraulic oil cylinders 7 finish pushing of one stroke, stopping the extension of the telescopic rods 8 of the oil cylinders, controlling the contraction of the hydraulic oil cylinders 7 through a control system according to a design scheme, wherein at the moment, the building structure 4 does not translate due to large self weight, and under the action of dragging force generated by the contraction of the hydraulic oil cylinders 7, the contact between the fixing devices and the steel rails 1 is firstly released and then the fixing devices approach the building structure 4;
step eight, after all the hydraulic oil cylinders 7 are contracted in place according to the design scheme, starting the pushing translation operation of the next stage;
step nine, after multiple staged pushing translation constructions, pushing the building structure 4 to a designed position, stopping the translation operation, dismantling the pushing system and the fixing device, and dismantling the pushing support 6 arranged at the lateral rear part of the building structure 4;
step ten, according to a design scheme, jacking the building structure 4 by a preset height by adopting a hydraulic jack, so that the contact between the translation rail cars 5 of the jacking system and the steel rails 1 is released, removing all the translation rail cars 5, removing all the steel rails 1, and controlling the hydraulic jack to make the building structure 4 contact with a foundation structure, so that the building structure 4 and the building foundation structure at the lower part of the building structure form a continuous structure.
Compared with the prior art, the invention has three beneficial effects:
1. the parallel steel rails are used as a guide mechanism for the translation of the building structure, so that the safety and stability of the translation construction process of the building structure can be ensured;
2. the fixing device provided by the invention can be continuously jacked, the extension and shortening operations of the hydraulic oil cylinder are continuous, an uninterrupted self-crawling process is formed, the jacking, fixing and loosening of the fixing device can be automatically completed under the automatic control of a control system, manual intervention is not needed, and the translation construction efficiency of a building is greatly improved;
3. the device can be repeatedly used, is easy to maintain and is not easy to damage, and is a green construction process.
Drawings
Fig. 1 is a schematic view of a lever type tightly-jacking fixed building guide rail translation device according to an embodiment of the invention.
Fig. 2 is a top view of a levered hold-down building guide translation device in accordance with one embodiment of the present invention.
Fig. 3 is a front view of a levered hold-down building guide translation device in accordance with one embodiment of the present invention.
Fig. 4 is a side view of a levered hold-down building guide translation device in accordance with one embodiment of the present invention.
Fig. 5 is a disassembled view of the lever friction tightening fixing device according to an embodiment of the present invention.
Fig. 6 is a schematic diagram of the jacking fixation of the lever-type jacking fixation building guide rail translation device according to the embodiment.
Fig. 7 is a schematic diagram of the release and pull-off of the levered jack-mounted building guide rail translation device of an embodiment.
FIG. 8 is a schematic diagram of an embodiment of a plurality of lever-type tightly-jacking fixed building guide rail translation devices working in parallel to jointly push a building to translate;
in the figure, 1-steel rail, 2-steel rail fixing bolt, 3-concrete foundation platform, 4-building structure, 5-translation rail car, 6-pushing support, 7-hydraulic oil cylinder, 8-oil cylinder telescopic rod, 9-oil cylinder rear buckle, 10-telescopic rod front buckle, 11-oil cylinder translation rail car, 12-push-pull rod, 13-pushing lever, 14-push-pull shaft, 15-rotation shaft, 16-friction gasket, 17-steel rail clamp, 18-anti-tilting frame, 19-rotation shaft fixing seat and 20-fixing pin.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 8, the present invention provides a lever-type building guide rail translation device with tightly-pushing and fixing functions, comprising:
a rail system arranged on the translation path of the building structure 4;
the pushing system is arranged on the track system, and the front end of the pushing system is connected with the building structure 4;
and the rear end of the pushing system is connected with the fixing device.
Here, the building structure 4 is an existing protected building structure, and for the purpose of storing historical cultural heritage and the like, it needs to be translated to other positions adjacent to the building structure and having the same elevation by adopting engineering measures, and the building structure 4 is a subject of the translation of the building.
The invention provides an innovative, stable, safe, efficient, convenient and reusable novel building translation device, which can solve the problems of irregularity, low efficiency, high energy consumption and the like in the construction of building translation engineering and overcome the defects of the prior art.
In one embodiment of the lever type tightly-jacking fixed building guide rail translation device, the fixing devices are matched with the jacking systems one by one;
in the pushing and translating stage of the building structure 4, a plurality of groups of pushing systems are connected in parallel and jointly push the same building structure 4 to generate horizontal displacement along the direction of the rail system, and each group of pushing systems is reversely supported and fixed in the horizontal direction by one set of fixing system.
Here, the number of the steel rails of the track system at the lower part of the building structure 4 is determined according to the design requirements of the actual engineering, 1 or 2 steel rails can be arranged under the same set of fixing device and pushing system, and the specific number is determined according to the actual engineering requirements.
In an embodiment of the present invention, the rail system comprises: a steel rail 1, a steel rail fixing bolt 2, a concrete foundation platform 3 and a translation rail car 5, wherein,
the concrete foundation platform 3 is a bearing foundation platform which is positioned below the building structure 4 and is a reinforced concrete plate structure with a preset thickness, the upper surface of the concrete foundation platform 3 is horizontal, a strip-shaped rib beam with a preset height is arranged at a position on the upper surface of the concrete foundation platform 3 for laying the steel rail 1, and the site area of the concrete foundation platform 3 is larger than and comprises the sum of the area before translation, the area after translation and the area after translation of the building structure 4;
before the building structure 4 is translated, appropriate foundation treatment is carried out on a soil foundation at the lower part of the concrete foundation platform 3, the bearing capacity of the foundation at the lower part of the concrete foundation platform 3 is improved, and the structure of the concrete foundation platform 3 is cast and constructed after the foundation treatment is finished, so that the concrete foundation platform 3 meets the requirements of settlement deformation in the building translation process and after the translation;
the steel rails 1 are guiding and bearing parts for translation of the building structure 4 and are made of steel I-shaped steel, a plurality of steel rails 1 are fixed on the upper part of the concrete foundation platform 3 in parallel by steel rail fixing bolts 2, if the concrete foundation platform 3 is provided with a strip-shaped rib beam, the steel rail fixing bolts 2 can be fixed on the upper part of the strip-shaped rib beam in parallel, and the length of the steel rail 1 is slightly shorter than that of the concrete foundation platform 3 along the translation direction;
the steel rail fixing bolts 2 are bolts for fixing the steel rail 1 and are equidistantly distributed on two sides of the steel rail 1, the lower end of each steel rail fixing bolt 2 is driven into the concrete foundation platform 3 to a preset depth, and the upper end of each steel rail fixing bolt 2 clamps the lower edge of the steel rail 1 through a steel clamping piece to form a fixing effect on the steel rail 1;
the translation rail car 5 is a movable part installed on the steel rail 1, the bottom of the translation rail car 5 is provided with a plurality of steel wheels, the specifications of the steel wheels are consistent with those of the steel rail 1, the translation rail cars 5 in preset number are uniformly installed at the bottom of the building structure 4, the gravity load of the building structure 4 is transmitted to the steel rail 1, and the building structure 4 can move horizontally along the steel rail 1 through the translation rail car 5 under the action of horizontal external force.
In an embodiment of the present invention, the rail 1 includes a linear rail, a curved rail and a circular rail.
The device of the invention can be applied not only to the linear translation of existing buildings, but also to the curvilinear translation and the rotational movement of existing buildings;
for curve translation of an existing building, parallel curve steel rails 1 are laid in advance, when a building structure 4 is pushed to translate, the extension rates and the output shaft force of hydraulic oil cylinders 7 at different positions are controlled, and a specific control scheme is determined according to strict calculation and analysis;
for the rotary movement of the existing building, the steel rails 1 which are annularly arranged are laid in advance, a jacking system and a fixing device are arranged at the edge position of the building structure 4, the extension rate and the output shaft force of hydraulic oil cylinders 7 at different positions are controlled, and the specific arrangement scheme and the control scheme are determined according to strict calculation and analysis.
In an embodiment of the present invention, the pushing system comprises: a pushing support 6, a hydraulic oil cylinder 7 and an oil cylinder translation rail car 11, wherein,
the pushing support 6 is a steel component fixed at the back of the bottom of the building structure 4, and a clamp connected with an oil cylinder telescopic rod 8 of the hydraulic oil cylinder 7 is arranged on the pushing support 6;
the hydraulic oil cylinder 7 is a power unit for pushing the building structure 4 to translate along the steel rail 1, the oil cylinder telescopic rod 8 extends out of the hydraulic oil cylinder 7, the expansion rate and the output shaft force of the oil cylinder telescopic rod 8 are controlled by controlling the pressure and the flow of hydraulic oil, a telescopic rod front buckle 10 is positioned at the front end of the oil cylinder telescopic rod 8, the telescopic rod front buckle 10 is connected with the pushing support 6 through a fixing pin 20, and an oil cylinder rear buckle 9 is positioned at the rear end of the hydraulic oil cylinder 7 and connected with an oil cylinder translation rail car 11 through the fixing pin 20;
the hydraulic cylinder translation rail car 11 is a movable part installed on the steel rail 1, a clamp connected with the hydraulic cylinder 7 is arranged at the upper part of the hydraulic cylinder translation rail car 11, the push-pull rod 12 is horizontally fixed at the rear part of the hydraulic cylinder translation rail car 11, the push-pull rod 12 is an inverted F-shaped steel component, and an inverted F-shaped gripper of the inverted F-shaped steel component upwards buckles the fixing device, so that the horizontal counter force of the hydraulic cylinder 7 is transmitted to the fixing device.
Preferably, the inverted-F grip of the inverted-F steel member upwardly grips the push-pull shaft 14 of the tightening lever 13 of the fixing device to serve as a connection to the fixing device, thereby transmitting the horizontal reaction force of the hydraulic cylinder 7 to the fixing device.
In an embodiment of the present invention, the fixing device comprises: a tightening lever 13, a rail clamp 17, an anti-roll frame 18 and a rotating shaft fixing seat 19, wherein,
the steel rail clamp 17 is a steel component provided with a necking clamp, can be firmly sleeved and clamped on the steel rail 1, has only one-direction movement freedom degree, does not move vertically or laterally under the action of external force, and can only move horizontally along one direction of the steel rail 1;
the rotating shaft fixing seats 19 are steel connection members, fixing holes penetrating through the rotating shafts 15 of the jacking levers 13 are reserved on the rotating shaft fixing seats 19, the rotating shafts 15 are used for enabling the jacking levers 13 to rotate around the fixing holes, each rotating shaft fixing seat 19 is connected with a corresponding steel rail clamp 17 and fixedly fixed, a rigid platform structure capable of moving back and forth along the steel rail 1 is formed, and when the jacking levers 13 work in a jacking mode, the rigid platform structure can provide enough vertical counter force;
the jacking lever 13 is made of L steel, the long side and the short side of L steel are vertical, a push-pull shaft 14, a rotating shaft 15 and a friction pad 16 are firmly fixed on the jacking lever 13, wherein,
the push-pull shaft 14 is positioned above the long edge of the jacking lever 13;
the rotating shaft 15 is positioned at the connecting corner of the edge and the short edge of the jacking lever 13;
the friction pad 16 is positioned below the short edge of the jacking lever 13;
preferably, the distance from the center of the push-pull shaft 14 to the center of the rotating shaft 15 is greater than the distance from the center of the rotating shaft 15 to the center of the friction pad 16;
the inverted F-shaped gripper of the push-pull rod 12 of the pushing system buckles the push-pull shaft 14, and the push-pull rod 12 can push or pull the push-pull shaft 14 under the action of horizontal force, so that the pushing lever 13 is driven to rotate around the rotating shaft 15; the bottom of the tightening lever 13 is provided with a friction pad 16, the friction pad 16 is a sheet-shaped component with a frosted surface, the lower part of the friction pad 16 is tightly pressed against the steel rail 1, under the pushing action of the push-pull rod 12, the tightening lever 13 has a tendency of rotating backwards to tightly press the friction pad 16 against the steel rail 1, and the contact surface of the friction pad 16 and the steel rail 1 has a larger friction coefficient and can provide a large enough horizontal friction force;
the anti-tilting frame 18 is a steel frame, is mounted on the rail clip 17, and is used for preventing the jacking lever 13 from tilting forwards.
In an embodiment of the present invention, the working principle of the lever-type building guide rail translation device with tight and fixed top is as follows:
the horizontal force of the pushing system, namely the horizontal force of the hydraulic oil cylinder 7 is transmitted to the horizontal acting force at the upper end of the pushing lever 13 through the push-pull rod 12, the horizontal acting force is amplified to be the vertical acting force for pushing the friction gasket 16 at the lower end of the pushing lever 13 and the steel rail 1 tightly through the pushing lever 13 according to the lever principle, the amplification factor k of the pushing lever 13 is the ratio of the distance from the center of the rotating shaft 15 to the center of the push-pull rod 12 to the distance from the center of the rotating shaft 15 to the center of the friction gasket 16, and the vertical acting force for pushing the friction gasket 16 and the steel rail 1 tightly can provide the horizontal friction force which is used as the horizontal acting force in the direction; the static friction coefficient mu of the contact between the friction pad 16 and the steel rail 1 is larger than the amplification coefficient k of the abutting lever 13, so that only static friction is sent between the friction pad 16 and the steel rail 1 under the action of horizontal force provided by the hydraulic oil cylinder 7, relative sliding and displacement are avoided, and the fixing effect of the fixing device is ensured.
According to another aspect of the invention, the building translation construction method adopting the lever type tightly-jacking fixed building guide rail translation device further comprises the following steps:
step one, site cleaning and foundation reinforcement: cleaning the place of the building structure 4 after translation and the sweeping area in the translation process, performing foundation treatment and foundation construction on the fixed position of the building structure 4 after translation according to the design requirements, and performing foundation treatment and foundation reinforcement on the sweeping area of the building structure 4 passing through in the translation process according to the design requirements to form a coherent concrete foundation platform 3
Cleaning the position of the building structure 4 after translation and the field of a sweeping area in the translation process, performing foundation treatment and foundation construction on the fixed position of the building structure 4 after translation according to design requirements, if a basement is required to be built before the building structure 4 is translated, performing foundation treatment and foundation reinforcement on the sweeping area through which the building structure 4 passes in the translation process according to the design requirements to form a coherent concrete foundation platform 3, and if the basement is required to be poured with a reinforced concrete foundation beam according to the design requirements to lay a steel rail 1 on the foundation beam;
step two, building structure reinforcement and bottom underpinning: building structure reinforcement and bottom underpinning: the internal structure and the bottom structure of the building structure 4 are reinforced according to the design requirements, so that the building structure has enough rigidity, and structural damage and large deformation are avoided in the processes of structure jacking and integral translation;
the internal structure and the bottom structure of the building structure 4 are reinforced according to the design requirement, so that the requirement that the building structure 4 is not damaged in the power translation process can be met, underpinning construction can be carried out on the bottom structure of the building structure 4 according to the design requirement, structural forms such as carrying pole beams and the like can be adopted, the bottom structure has enough rigidity, and structural damage and large deformation can not occur in the structure jacking and integral translation processes;
step three, jacking the building structure: cutting off the structural connection between the building structure 4 and the building foundation at the lower part of the building structure by adopting a mechanical cutting mode and the like to enable the building foundation to be connected with the concrete foundation platform 3 into a whole, and jacking the whole building structure 4 by adopting a hydraulic jack and the like to a preset height of 20cm, so that a space for laying the steel rail 1 is formed between the lower part of the building structure 4 and the building foundation;
step four, laying a track system: according to design requirements, parallel steel rails 1 are laid below the original position of the building structure 4, in a translation sweeping interval and in a preset translation area, and the steel rails 1 are firmly fixed on a concrete foundation platform 3 by steel rail fixing bolts 2;
step five, installing an actuating system and a fixing system: installing a pushing system and a fixing device on a steel rail 1 according to a design scheme, connecting and fixing the fixing device and a rear buckle 9 of an oil cylinder of the pushing system, installing a pushing support 6 on the side surface of the bottom of a building structure 4, and connecting and fixing the pushing support 6 and a front buckle 10 of a telescopic rod;
sixthly, building jacking translation construction: according to the design scheme, each hydraulic oil cylinder 7 is controlled to extend through a control system, and the building structure 4 is pushed to horizontally move along the direction of the steel rail 1;
in the method, each hydraulic oil cylinder 7 of the pushing system is controlled to extend through the control system according to a design scheme to provide a design axial force, the pushing building structure 4 horizontally moves along the direction of the steel rail 1, and the fixing device is always fixed on the steel rail 1 and does not displace in the pushing translation construction process;
step seven, retracting the hydraulic oil cylinder: after the hydraulic oil cylinders 7 finish pushing of one stroke, the continuous extension of the telescopic rods 8 of the oil cylinders is stopped, the contraction of each hydraulic oil cylinder 7 is controlled by a control system according to a design scheme, at the moment, the building structure 4 does not translate due to large dead weight, and under the action of dragging force generated by the contraction of the hydraulic oil cylinders 7, the contact between the fixing devices and the steel rails 1 is firstly released and then is close to the building structure 4;
step eight, continuing incremental launching translation construction: after all the hydraulic oil cylinders 7 are contracted in place according to the design scheme, the pushing translation operation of the next stage is started;
ninthly, stopping translation and dismounting the device: after multiple staged pushing translation construction, the building structure 4 is pushed to a designed position, the translation operation is stopped, the pushing system and the fixing device are dismantled, and the pushing support 6 arranged at the rear side of the building structure 4 is dismantled;
tenth, fixing the building structure: according to the design scheme, a hydraulic jack is adopted to jack the building structure 4 to a preset height of 20cm, so that the contact between the translation rail cars 5 and the steel rails 1 is released, all the translation rail cars 5 are dismantled, all the steel rails 1 are dismantled, the hydraulic jack is controlled to enable the building structure 4 to be in contact with a foundation structure, and the method of reinforcing steel bars by planting and the like is adopted to enable the building structure 4 and the building foundation structure at the lower part of the building structure to form a continuous structure, so that the building structure meets the requirement of building structure design.
The drawings of the present invention are in simplified form and are not to scale, but rather are provided for the purpose of facilitating and clearly illustrating embodiments of the present invention and are not intended to limit the scope of the invention in which the invention may be practiced.
Specifically, as shown in fig. 1 to 8, the lever-type building guide rail translation device for tightly supporting and fixing comprises a building structure 4, a rail system, a supporting system and a fixing device.
The building structure 4 is an old reinforced concrete structure building with three floors, is the object of building translation, is 12m high, has a building plane area of 8m × 8m, has a total structure weight of 500t, has a reinforced concrete bottom plate at the bottom, has a bottom plate area of 10m × 10m and a thickness of 0.6m, and is horizontally and linearly translated by a translation distance of 15m in the embodiment.
The concrete foundation platform 3 is positioned below the building structure 4, the area of the concrete foundation platform is 27m × 12m, before the building structure 4 is translated, foundation treatment is carried out on a concrete foundation at the lower part of the concrete foundation platform 3, and after the foundation treatment is completed, the structure of the concrete foundation platform 3 is poured and constructed, so that the concrete foundation platform 3 meets the requirements of settlement deformation in the building translation process and after the translation.
The steel rail 1 is heavy steel I-shaped steel, 26 total, length is 26.5m, two steel rails 1 are parallelly connected in a set of, form 13 groups together, adopt parallel equidistant the fixing in concrete foundation platform 3 upper portion of steel rail fixing bolt 2, total 12 × 13 is 152 translation railcar 5 and installs in the bottom of building structure 4, install simultaneously on steel rail 1, 12 translation railcar 5 of equidistance distribution on every group steel rail, the static rolling friction coefficient that promotes translation railcar 5 is for being less than or equal to 0.1, can calculate the initial horizontal force that promotes building structure 4 translation and is less than or equal to 50 t.
The pushing system of the present embodiment totally adopts 13 pushing supports 6 fixed to the back of the bottom of the building structure 4. The pushing system of the embodiment totally adopts 13 hydraulic oil cylinders 7, the maximum output shaft force of the hydraulic oil cylinders 7 is 4t, the total output maximum shaft force of the 13 hydraulic oil cylinders 7 is 52t greater than 50t, and the building structure 4 can be pushed to move horizontally. The piston stroke of the hydraulic oil cylinder 7 is 1m, the whole translation process only needs 15 strokes, the extending stroke of the hydraulic oil cylinder 7 needs 10min, the retracting stroke of the hydraulic oil cylinder 7 needs 2min, and the fixing and moving of the fixing device can be completed instantly, so that the translation construction of the whole building only needs 3h, and the translation construction can be completed in one working day.
The fixing device of the embodiment is composed of a jacking lever 13, a steel rail clamp 17, an anti-tilting frame 18 and a rotating shaft fixing seat 19. The rail clip 17 is an M-shaped steel member provided with two necking clips. The three rotating shaft fixing seats 19 are connected and firmly fixed with the two steel rail clamps 17 to form a rigid platform structure capable of moving back and forth along the steel rail 1.
The jacking lever 13 is an L steel member, the two jacking levers are parallel, the long sides are perpendicular to the short sides, a push-pull shaft 14, a rotating shaft 15 and friction pads 16 are fixedly fixed on the jacking lever 13, the push-pull shaft 14 is located above the long sides of the jacking lever 13, the rotating shaft 15 is located at the corner of the jacking lever 13, the friction pads 16 are located below the short sides of the jacking lever 13, the distance from the center of the push-pull shaft 14 to the center of the rotating shaft 15 is 50cm, the distance from the center of the rotating shaft 15 to the center of the friction pads 16 is 5cm, the amplification coefficient k of the jacking lever 13 is 10, namely 52t horizontal force provided by a hydraulic oil cylinder is calculated, and the sum of vertical contact forces between all the friction pads 16 and the steel rail 1 is 520.
The inverted F-shaped gripper of the push-pull rod 12 of the pushing system buckles the push-pull shaft 14, and the push-pull rod 12 can push or pull the push-pull shaft 14 under the action of horizontal force, so that the pushing lever 13 is driven to rotate around the rotating shaft 15. The static friction coefficient mu of the contact surface of the friction pad 16 and the steel rail 1 is 0.15, and the maximum horizontal counter force which can be provided by the contact surface of the friction pad 16 and the steel rail 1 can be calculated to be 78t and is greater than the maximum horizontal force 52t of the pushing system, so that the fixing device can ensure firm fixation in the translation construction process of a building and provide stable counter force support for the pushing system.
The invention has three beneficial effects:
1. the parallel steel rails are used as a guide mechanism for the translation of the building structure, so that the safety and stability of the translation construction process of the building structure can be ensured;
2. the fixing device provided by the invention can be continuously jacked, the extension and shortening operations of the hydraulic oil cylinder are continuous, an uninterrupted self-crawling process is formed, the jacking, fixing and loosening of the fixing device can be automatically completed under the automatic control of a control system, manual intervention is not needed, and the translation construction efficiency of a building is greatly improved;
3. the device can be repeatedly used, is easy to maintain and is not easy to damage, and is a green construction process.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The utility model provides a tight fixed building guide rail translation device in lever top which characterized in that includes:
a rail system arranged on a translation path of the building structure (4);
the pushing system is arranged on the track system, and the front end of the pushing system is connected with the building structure (4);
and the rear end of the pushing system is connected with the fixing device.
2. The leverage jack-mounted building rail translation device of claim 1 wherein the mounting means and the jacking system are paired one-to-one; in the pushing and translation stage of the building structure (4), a plurality of groups of pushing systems are connected in parallel and jointly push the same building structure (4) to generate horizontal displacement along the direction of the rail system, and each group of pushing systems is reversely supported and fixed in the horizontal direction by one set of fixing system.
3. A leveraged-type jack-mounted building guide rail translation device according to claim 1, characterized in that said rails (1) comprise straight rails, curved rails and circularly arranged rails.
4. The levered jack-mounted building guide rail translation device of claim 1, wherein the rail system comprises: a steel rail (1), a steel rail fixing bolt (2), a concrete foundation platform (3) and a translation track car (5), wherein,
the concrete foundation platform (3) is a bearing foundation platform which is positioned below the building structure (4) and is a reinforced concrete plate structure with a preset thickness, the upper surface of the concrete foundation platform (3) is horizontal, a strip-shaped rib beam with a preset height is arranged at a position for laying the steel rail (1) on the upper surface of the concrete foundation platform (3), and the field area of the concrete foundation platform (3) is larger than and comprises the sum of the area before translation, the area after translation and the area after translation of the building structure (4);
the steel rails (1) are guiding and bearing parts for translation of a building structure (4) and are made of steel I-shaped steel, a plurality of steel rails (1) are fixed on the upper portion of the concrete foundation platform (3) in parallel by steel rail fixing bolts (2), and the steel rail fixing bolts (2) are fixed on the upper portion of the strip-shaped rib beam in parallel;
the steel rail fixing bolts (2) are equidistantly distributed on two sides of the steel rail (1), the lower ends of the steel rail fixing bolts (2) are driven into the concrete foundation platform (3) to a preset depth, and the upper ends of the steel rail fixing bolts (2) clamp the lower edge of the steel rail (1) through steel clamping pieces;
the bottom of translation railcar (5) is furnished with a plurality of steel wheels, the specification of steel wheel is unanimous with the specification of rail (1), and translation railcar (5) equipartition of predetermineeing quantity is installed in the bottom of building structure (4), transmits the gravity load of building structure (4) for rail (1).
5. A levered jack-down mounted building track translator as claimed in claim 4 wherein the length of the rail (1) is slightly shorter than the length of the concrete foundation platform (3) in the direction of translation.
6. The levered jacking fixed building guide translation device of claim 4, wherein the jacking system comprises: a pushing support (6), a hydraulic oil cylinder (7) and an oil cylinder translation rail car (11), wherein,
the pushing support (6) is a steel component fixed at the back of the bottom of the building structure (4), and a clamp connected with a cylinder telescopic rod (8) of the hydraulic cylinder (7) is arranged on the pushing support (6);
the hydraulic oil cylinder (7) is a power unit for pushing the building structure (4) to move horizontally along the steel rail (1), the oil cylinder telescopic rod (8) extends out of the hydraulic oil cylinder (7), a telescopic rod front buckle (10) is positioned at the front end of the oil cylinder telescopic rod (8), the telescopic rod front buckle (10) is connected with the pushing support (6) through a fixed pin, and an oil cylinder rear buckle (9) is positioned at the rear end of the hydraulic oil cylinder (7) and is connected with an oil cylinder translation rail car (11) through a fixed pin;
the steel rail fixing device is characterized in that the oil cylinder translation rail car (11) is a movable part arranged on a steel rail (1), a clamp connected with a hydraulic oil cylinder (7) is arranged at the upper part of the oil cylinder translation rail car (11), the push-pull rod (12) is horizontally fixed at the rear part of the oil cylinder translation rail car (11), the push-pull rod (12) is an inverted F-shaped steel component, and an inverted F-shaped gripper of the inverted F-shaped steel component upwards buckles the fixing device.
7. The levered jack-mounted building guide rail translation device of claim 6, wherein the mounting means comprises: a tightening lever (13), a steel rail clamp (17), an anti-tilting frame (18) and a rotating shaft fixing seat (19), wherein,
the steel rail clamp (17) is a steel component provided with a necking clamp, the steel rail clamp (17) is clamped on the steel rail (1) through the necking clamp, and only moves horizontally along one direction of the steel rail (1);
a fixing hole penetrating through a rotating shaft (15) of the tightening lever (13) is reserved on the rotating shaft fixing seat (19), the rotating shaft (15) is used for enabling the tightening lever (13) to rotate around the position of the fixing hole, and each rotating shaft fixing seat (19) is connected and fixed with a corresponding steel rail clamp (17) respectively to form a rigid platform structure moving back and forth along the steel rail (1);
the jacking lever (13) is an L steel member, the long side and the short side of the L steel member are vertical, a push-pull shaft (14), a rotating shaft (15) and a friction gasket (16) are fixedly fixed on the jacking lever (13), wherein,
the push-pull shaft (14) is positioned above the long edge of the jacking lever (13);
the rotating shaft (15) is positioned at a connecting corner of the edge and the short edge of the jacking lever (13);
the friction pad (16) is positioned below the short side of the jacking lever (13), and an inverted F-shaped hand grip of a push-pull rod (12) of the jacking system buckles the push-pull shaft (14); the friction pad (16) is a sheet-shaped component with a frosted surface, and the lower part of the friction pad (16) is in abutting contact with the steel rail (1);
the anti-tilting frame (18) is a steel bracket, is arranged on the steel rail clamp (17) and is used for preventing the jacking lever (13) from tilting forwards.
8. The lever type jacking fixed building guide rail translation device as claimed in claim 7, wherein the horizontal force of the hydraulic oil cylinder (7) is transmitted to the horizontal acting force at the upper end of the jacking lever (13) through the push-pull rod (12), the horizontal acting force is amplified to be the vertical acting force for jacking the friction gasket (16) at the lower end of the jacking lever (13) and the steel rail (1) through the jacking lever (13) according to the lever principle, the amplification coefficient k of the jacking lever (13) is the ratio of the distance from the center of the rotating shaft (15) to the center of the push-pull rod (12) to the distance from the center of the rotating shaft (15) to the center of the friction gasket (16), and the vertical acting force for jacking the friction gasket (16) and the steel rail (1) provides the horizontal friction force which is used for balancing the horizontal acting force provided by the hydraulic oil cylinder (7) in the direction for pushing; the static friction coefficient mu of the contact between the friction pad (16) and the steel rail (1) is larger than the amplification coefficient k of the abutting lever (13), so that only static friction is transmitted between the friction pad (16) and the steel rail (1) without relative sliding and displacement under the action of horizontal force provided by the hydraulic oil cylinder (7).
9. A building translation construction method adopting the lever type tightly-jacking fixed building guide rail translation device as claimed in any one of the claims 1 to 8, characterized in that the method comprises the following steps:
firstly, cleaning the position of a building structure (4) after translation and a field of a sweeping area in the translation process, carrying out foundation treatment and foundation construction on a fixed position of the building structure (4) after translation according to design requirements, and carrying out foundation treatment and foundation reinforcement on the sweeping area through which the building structure (4) passes in the translation process according to the design requirements to form a coherent concrete foundation platform (3);
secondly, reinforcing the internal structure and the bottom structure of the building structure (4) according to design requirements, so that the building structure (4) has enough rigidity and does not generate structural damage and large deformation in the processes of jacking and integral translation of the structure;
thirdly, cutting off the structural connection between the building structure (4) and the building foundation at the lower part of the building structure, connecting the building foundation and the concrete foundation platform (3) into a whole, jacking the whole building structure (4) to a preset height, and forming a space for laying a steel rail (1) of a track system between the lower part of the building structure (4) and the building foundation;
fourthly, paving parallel steel rails (1) below the original position of the building structure (4), in the translation sweeping interval and in the region after the preset translation according to design requirements, and firmly fixing the steel rails (1) on the concrete foundation platform (3) by adopting steel rail fixing bolts (2);
installing a pushing system and a fixing device on the steel rail (1) according to a design scheme, connecting and fixing the fixing device and a rear oil cylinder buckle (9) of the pushing system, installing a pushing support (6) of the pushing system on the side surface of the bottom of the building structure (4), and connecting and fixing the pushing support (6) and a front telescopic rod buckle (10) of the pushing system;
sixthly, controlling the hydraulic oil cylinders (7) of all the pushing systems to extend through the control system according to the design scheme, and horizontally moving the pushing building structure (4) along the direction of the steel rail (1);
seventhly, after the hydraulic oil cylinders (7) finish pushing of one stroke, stopping the continuous extension of the telescopic rods (8) of the oil cylinders, controlling the contraction of each hydraulic oil cylinder (7) through a control system according to a design scheme, wherein at the moment, the building structure (4) does not translate due to large dead weight, and under the action of dragging force generated by the contraction of the hydraulic oil cylinders (7), the contact between the fixing device and the steel rail (1) is firstly released and then is close to the building structure (4);
step eight, after all the hydraulic oil cylinders (7) are contracted in place according to the design scheme, starting the pushing translation operation of the next stage;
step nine, after multiple stages of pushing translation construction, pushing the building structure (4) to a designed position, stopping the translation operation, dismantling the pushing system and the fixing device, and dismantling the pushing support (6) arranged at the lateral rear part of the building structure (4);
step ten, according to a design scheme, a hydraulic jack is adopted to jack the building structure (4) to a preset height, so that the contact between the translation rail cars (5) of the jacking system and the steel rails (1) is released, all the translation rail cars (5) are dismantled, all the steel rails (1) are dismantled, the hydraulic jack is controlled to enable the building structure (4) to be in contact with the foundation structure, and the building structure (4) and the building foundation structure at the lower part of the building structure form a continuous structure.
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