CN110725209A - Construction prop-up device and method for bridges adjacent to business lines - Google Patents
Construction prop-up device and method for bridges adjacent to business lines Download PDFInfo
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- CN110725209A CN110725209A CN201911009669.6A CN201911009669A CN110725209A CN 110725209 A CN110725209 A CN 110725209A CN 201911009669 A CN201911009669 A CN 201911009669A CN 110725209 A CN110725209 A CN 110725209A
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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Abstract
The utility model provides a construction support device and method for being close to business line bridge, include intermediate strut (81) that is used for supporting the middle part of bridge, a side support group for supporting the side portion of bridge, set up on side support group and be used for supporting the dish of the side portion template of bridge and detain frame (84), detain frame (84) through the dish, realized the support to the side portion template of supporting the bridge, through intermediate strut (81), realized the support to the middle part of supporting the bridge, through side support group, realized the removal to the bridge, consequently, the construction of the bridge of keeping away from existing track traffic business line has been realized, the efficiency of bridge construction has been improved.
Description
Technical Field
The invention relates to a construction support device, in particular to a construction support device and a construction support method suitable for a bridge adjacent to a business line.
Background
The swivel beam construction process is basically mature and widely applied, but no matter which type of prestressed concrete swivel beam, the beam body is constructed in situ, the construction period is long, the safety risk is large, particularly the site construction is limited by the busy important high-speed rail adjacent to the existing high-speed rail,
particularly, the bridge surface is higher than the existing high-speed rail surface by more than 15 meters, the distance between the front beam edge of the swivel and the existing high-speed rail is very close to about 10m, the construction pressure of the front beam edge of the swivel is high and the construction period is tight, a method of support side position splicing pushing construction is adopted, a 0# block of a main pier is cast in situ, a support template is erected outside the existing high-speed rail at the position of 30m away from the cantilever sections at two sides, reinforcing steel bars are bound, then the main pier is pushed to the in situ and butted with the 0# block, and concrete is cast.
The technical scheme of the invention is made based on the technical problems, technical features and technical effects in the technical background of the applicant.
Disclosure of Invention
The object of the invention is a construction support device for bridges adjacent to a business line,
the object of the invention is a construction method for a bridge adjacent to a business line.
In order to overcome the technical defects, the invention aims to provide a construction support device and a construction support method for a bridge close to a business line, so that the construction of the bridge far away from the existing rail transit business line is realized, and the efficiency of bridge construction is improved.
In order to achieve the purpose, the invention adopts the technical scheme that: the middle support that includes the intermediate strut that is used for supporting the intermediate portion of bridge, the side support group that is used for supporting the side portion of bridge, set up on the side support group and be used for supporting the dish of the side portion template of bridge and detain the frame.
Due to the fact that the middle support, the side support group and the disc buckling frame are designed, the disc buckling frame is used for supporting the side formwork of the supporting bridge, supporting of the middle portion of the supporting bridge is achieved through the middle support, moving of the bridge is achieved through the side support group, construction of the bridge far away from an existing rail transit business line is achieved, and efficiency of bridge construction is improved.
The invention designs that the middle support, the side support group and the disc buckling frame are connected with each other in a mode of moving the bridge to a mounting point.
The invention designs that the side support group comprises a left support and a right support.
The invention provides that the first attachment device is provided with an inclined support beam and is arranged on the side support group.
The invention designs that a left support and a right support are respectively arranged on the side part of the middle support, and a disc buckle frame is respectively arranged on the left support and the right support.
The invention designs that the middle support comprises a base body and a vertical beam, the lower end face part of the base body is connected with a ground plane, the upper end face part of the base body is connected with the lower end face part of the vertical beam, the upper end face part of the vertical beam is connected with the middle part of a bridge, a left support is arranged on one side face part of the vertical beam, a right support is arranged on the other side face part of the vertical beam, the left support is a convex-shaped seat body, and the right support is a hollow strip-shaped body.
The invention designs that the left support and the right support are respectively arranged to comprise a sand cushion layer, a bar base, a straining beam, an upright post, a cross brace, a sand box, a cross arm, a longitudinal beam, a distribution longitudinal beam and a distribution truss, the sand cushion layer is arranged on a ground plane, a hydraulic pushing device is arranged between the bar base and the upright post, the cross brace is arranged between the upright posts, the upper end of the upright post is provided with the sand box and the cross arm is arranged on the sand box, the longitudinal beam is arranged on the cross arm and the distribution longitudinal beam is arranged on the longitudinal beam, the distribution truss is arranged on the distribution longitudinal beam, and a disc buckling frame is arranged on the distribution truss.
The invention designs that the strip base is provided with a strip part, a left side plate part and a right side plate part, the left side part of the upper end surface of the strip part is connected with the left side plate part, the right side part of the upper end surface of the strip part is connected with the right side plate part, the inner side part of the left side plate part and the inner side part of the right side plate part are respectively connected with a hydraulic pushing device in a contact way, the lower end surface part of the strip part is connected with a sand cushion layer, the upper end surface part of the strip part is connected with the hydraulic pushing device in a contact way, the strip part is provided with a rectangular seat body, the left side plate part and the right side plate part are respectively provided with a rectangular sheet body, the sand cushion layer is provided with a rectangular bar body, a stand column is provided with a circular tube body, the longitudinal beams and the distribution longitudinal beams are respectively arranged into I-shaped strip bodies.
The invention designs that a sand cushion layer, a bar base, a cross arm, a distribution longitudinal beam and a hydraulic pushing device are vertically distributed, tension beams and longitudinal beams are transversely distributed, the sand cushion layer, the bar base, the cross arm, the distribution longitudinal beam and the hydraulic pushing device are arranged to form a group of vertical components, a plurality of groups of vertical components are arranged to be distributed at intervals along the transverse central line of the tension beams, the tension beams and the longitudinal beams are arranged to form a group of transverse components, a plurality of groups of transverse components and a plurality of upright columns are arranged to be distributed at intervals along the vertical central line of the sand cushion layer, the longitudinal beams are arranged to be segmented bodies, and the longitudinal beams are arranged to be distributed in a stepped manner along the transverse central line of the bridge.
The invention designs that the disc buckling frame is respectively connected with the left support and the right support and is connected with the template of the bridge in an accommodating way.
The invention designs that the middle support, the disc buckle frame, the left support and the right support are distributed in a movable frame mode.
The invention designs that the lower end head of the inclined support beam is connected with the foundation, the upper end head of the inclined support beam is connected with the sand box, and the inclined support beam is distributed in an inclined mode with the upright post.
The invention designs a hydraulic thrustor which comprises a base, a movable base, a thrusting telescopic cylinder, a rear support beam, a pressing claw, a pressing telescopic cylinder, a first displacement sensor, a second displacement sensor, a high-pressure liquid pump, a liquid control valve, a data converter and a data processor, wherein the movable base, the rear support and the rear support beam are respectively arranged on the base, the thrusting telescopic cylinder is arranged between the movable base and the rear support, the pressing claw is arranged on the rear support, the pressing telescopic cylinder is arranged between the pressing claw and the rear support beam, the liquid control valves are respectively arranged between a hydraulic port of the thrusting telescopic cylinder and the high-pressure liquid pump and between a hydraulic port of the pressing telescopic cylinder and the high-pressure liquid pump, the first displacement sensor is arranged on the movable base, the second displacement sensor is arranged on the rear support beam, and the data processor are respectively arranged between the first displacement sensor and the data processor A transducer and a fluid control valve are provided in connection with the data processor.
The invention designs that the base comprises a seat part and a first guide rail part, the middle part of the upper end face of the seat part is connected with the first guide rail part, the left side part of the upper end face of the seat part is connected with the second guide rail part, the left side part of the upper end face of the seat part is connected with the third guide rail part, the rear end part of the upper end face of the seat part is connected with the rear supporting beam, the first guide rail part is connected with the pressing claw in an embedded mode, the second guide rail part and the third guide rail part are respectively connected with the movable base in a contact mode, the seat part is arranged to be a rectangular plate-shaped body, the first guide rail part, the second guide rail part and the third guide rail part are respectively arranged to be T-shaped strip-shaped bodies, and the first guide rail part, the second guide rail part and the third guide rail part are arranged to be distributed in a stepped mode.
The invention designs that the movable base is arranged into an H-shaped strip-shaped body, the lower end surface part of the movable base is connected with the base in a contact mode, the side surface part of the movable base is provided with a connecting lug, the connecting lug of the movable base is connected with a pushing telescopic cylinder through a pin shaft, and the upper end surface part of the movable base is connected with a bridge support.
The invention designs that the rear support is arranged into an L-shaped beam body, the lower end surface part of the transverse part of the rear support is connected with the base in a contact mode, the vertical part of the rear support is provided with a connecting lug, the connecting lug of the rear support is connected with a pushing telescopic cylinder through a pin shaft, and the upper end surface part of the transverse part of the rear support is connected with a pressing claw.
The invention designs that the pushing telescopic cylinder is arranged into a two-section telescopic cylinder, a hydraulic port of the pushing telescopic cylinder is communicated with a liquid control valve, one end head of the pushing telescopic cylinder is connected with the movable base through a pin shaft, and the other end head of the pushing telescopic cylinder is connected with the rear support through a pin shaft.
The invention designs that the rear supporting beam is arranged into an L-shaped seat body, the lower end head of the vertical part of the rear supporting beam is connected with the base, the lower end surface part of the transverse part of the rear supporting beam is connected with the compression telescopic cylinder, and the side part of the transverse part of the rear supporting beam is connected with the second displacement sensor.
The invention designs that the pressing claw is arranged into a U-shaped rod-shaped body, the upper end head of the pressing claw is connected with the pressing telescopic cylinder, and the open part of the pressing claw is connected with the rear support in a clamping and pressing manner.
The invention designs that the compression telescopic cylinder is arranged into a two-section telescopic cylinder, a hydraulic port of the compression telescopic cylinder is communicated with a liquid control valve, one end head of the compression telescopic cylinder is connected with the rear supporting beam, and the other end head of the compression telescopic cylinder is connected with the compression claw.
The invention designs that the outlet port of the high-pressure liquid pump is communicated with the liquid control valve and the inlet port of the high-pressure liquid pump is communicated with the liquid tank.
The invention designs that the liquid control valve is set as an electromagnetic hydraulic flow valve, a control interface of the liquid control valve is set to be connected with a data processor, an input port of the liquid control valve is set to be connected with a high-pressure liquid pump, and an output port of the liquid control valve is respectively set to be connected with a pushing telescopic cylinder and a pressing telescopic cylinder.
The invention provides that the housing of the first displacement sensor is arranged to be coupled to the mobile base and the housing of the second displacement sensor is arranged to be coupled to the rear support beam, the output interface of the first displacement sensor and the output interface of the second displacement sensor being arranged to be connected to the data converter, respectively.
The invention provides that the data converter is arranged as an AD conversion module, the input interface of the data converter is respectively arranged to be connected with the first displacement sensor and the second displacement sensor, and the output interface of the data converter is arranged to be connected with the data processor.
The invention provides that the data processor is provided as a computer with a CPU and that the input interface of the data processor is provided in connection with the data converter and that the output interface of the data processor is provided in connection with the liquid control valve.
The invention designs a base, a movable base, a pushing telescopic cylinder, a first displacement sensor, a second displacement sensor, a high-pressure liquid pump, a liquid control valve, a data converter and a data processor which are distributed in a real-time monitoring mode, wherein the base, the movable base, the pushing telescopic cylinder, a rear support beam, a pressing claw and the pressing telescopic cylinder are distributed in an adjustable rear support mode, the central line of the base, the central line of the pushing telescopic cylinder, the central line of the rear support beam, the central line of the pressing claw and the central line of the pressing telescopic cylinder are arranged on the same straight line, the base, the pushing telescopic cylinder, the rear support beam, the pressing claw, the pressing telescopic cylinder, the first displacement sensor and the second displacement sensor are arranged to form a group of pushing support components, the plurality of groups of pushing support parts are arranged at intervals along the transverse central line of the movable base.
The invention designs the anti-abrasion wear-resistant plate, the anti-abrasion wear-resistant plate further comprises a sliding plate, an abrasion-resistant plate, a first end plate and a first end plate, the upper end surface parts of the sliding plate are respectively arranged to be coupled with the abrasion-resistant plate, the first end plate and the first end plate, the ends of the abrasion-resistant plate are respectively arranged to be coupled with the first end plate and the first end plate, the sliding plate is respectively arranged to be coupled with a second guide rail part and a third guide rail part, the sliding plate, the first end plate and the first end plate are respectively arranged to be U-shaped plate-shaped.
The invention designs a construction method for a bridge adjacent to a business line, which comprises the following steps:
in a construction site far away from an existing rail transit business line, a base body is placed on a foundation, an upright beam is installed on the base body, the middle part of a bridge is placed on the upright beam, a left support is installed on the left side part of the upright beam, a right support is installed on the right side part of the upright beam, a sandstone cushion layer is placed on the foundation, a bar part is installed on the sandstone cushion layer, a transverse direction pull beam is installed between the bar parts, a hydraulic pushing device is installed between the left side part and the right side part, an upright post is installed on a movable base, a cross brace is installed between the upright posts in the transverse direction and the vertical direction, a vertical direction sand box is installed between the upright posts, a cross arm is installed on a sand box, a transverse direction longitudinal beam is installed between the cross arms, a distribution longitudinal beam is installed between the longitudinal beams, a distribution truss is installed on the distribution longitudinal beam, a disc buckle frame is installed on the, pouring a side formwork of a bridge to form a side of the bridge, forming the side of the bridge, installing an upright post of a business line bridge support on a movable base through a hydraulic pushing device, starting a high-pressure liquid pump, communicating high-pressure liquid serving as power with pushing telescopic cylinders in a plurality of groups of pushing support components through a liquid control valve, extending the pushing telescopic cylinders in the plurality of groups of pushing support components, pushing the movable base to move on a second guide rail part and a third guide rail part in the plurality of groups of pushing support components, picking up moving length signals of the movable base on the second guide rail part and the third guide rail part through a first displacement sensor, picking up distance signals between two adjacent rear support beams through a second displacement sensor, and inputting the signals of the first displacement sensor and the second displacement sensor into a data processor after signal conversion through a data converter, data processing is carried out through a data processor to obtain a movement length difference signal corresponding to a moving base part of a pushing telescopic cylinder in a plurality of groups of pushing support parts, a distance difference signal between two adjacent rear support beams is obtained, the difference signal is input into a liquid control valve, the working state of the pushing telescopic cylinder in the plurality of groups of pushing support parts is controlled through the liquid control valve, the moving base is ensured to synchronously move on a second guide rail part and a third guide rail part in the plurality of groups of pushing support parts, when the pushing telescopic cylinder needs to move forwards, the pressing telescopic cylinder is in a contraction state through the liquid control valve, the pressing claw is separated from the rear support, the pushing telescopic cylinder is in a contraction state through the liquid control valve, the rear support moves forwards along a first guide rail part, the telescopic pressing cylinder is in an extension state through the liquid control valve, and the pressing claw generates a pressing acting force on the rear support, the rear support is connected with the first guide rail part, and the pushing telescopic cylinder enters the next pushing working procedure, so that the side face template of the bridge moves to the installation point of the business line bridge.
The invention designs that the method comprises the following steps:
firstly, construction of a strip foundation:
the strip foundation is provided with 12 rows in total, and C35 reinforced concrete is adopted. The basic structure is divided into 2 parts, the basic width of the translation area is 1.2m, and the thickness is 0.8 m. The base width of the pushing positioning area is 2m, and the thickness is 1 m. The total length of the foundation is 43.5 m. The filling part is wider than the concrete foundation by 1m and has a thickness of not less than 50 cm. 5 tie beams are arranged between the strip foundations, the overall stability of the foundations is improved, the weight of the pushing support and the steel bar formwork is large, and the requirements on elevation and coordinate accuracy are high after the pushing is in place, so that the bearing capacity of the strip foundations must meet the design requirements, and no settlement is guaranteed in the construction process. The strip foundation is filled by sand and broken stone, and can be constructed next step after the foundation bearing capacity test is qualified, after the strip foundation construction is completed, the strip foundation is subjected to a pre-pressing test to eliminate the non-elastic deformation of the strip foundation, and after the support is pushed to be in place and concrete is poured, the beam body elevation and the coordinates meet the design requirements,
secondly, track construction:
the rail adopts P60 instrument rail, and drilling on the bar basis uses the sulphur anchor spike, fixes the rail on the bar basis with the bullet strip fastener. The rail joints are connected by using clamping plates, the seams are flush, and no staggered teeth exist. The drawing test is carried out to the sulfur anchoring spike, and after the test is qualified, the track construction can be carried out, the support side position is assembled to push away construction and has high requirements on the straightness of the track, the spacing and the elevation of the track must be strictly controlled in the construction, all the tracks must be parallel to each other, and the spacing error must not be greater than 1 cm. The track adopts the flat slope, adopts the surveyor's level to measure the track top surface elevation, and accurate control track top surface elevation must not be greater than 5mm at same rail both ends error. Thereby ensuring the smooth pushing of the bracket and the accurate butt joint between the bracket and the 0# block after the bracket is in place,
thirdly, constructing a slideway:
the slideway beam adopts double-spliced H400 steel, and 5 ribbed plates are arranged on each side between the upper and lower seat plates of the H-shaped steel at the position to ensure the stress of the steel below the steel pipe column. The sliding medium is a copper-ink alloy sliding sheet with high hardness and small friction factor, and the sliding medium is reversely buckled on a track by using 10# channel steel and is welded with H-shaped steel. In order to ensure the stability of the copper-ink alloy sliding plate, the copper-ink alloy sliding plate is fixed in the channel steel by using a U-shaped clamping groove,
fourthly, erecting a support:
the support system adopts steel pipe column and I-shaped steel structure system, and the steel pipe column model is diameter 630mm, and the wall thickness is 10 mm. The steel pipe columns on one side are arranged into 6 rows, 6 steel pipes in each row are welded and connected through steel pipes with the diameter of 180 x 6mm, a mold dropping sand box is arranged above the steel pipe columns, and the bottom of the sand box is welded with the steel pipe columns. The double-spliced 45A I-steel serves as a longitudinal and transverse distribution beam above the sand box, the bottom of the beam above the I-steel is of a 16I-steel truss structure, the flange plate part adopts a disc buckle type scaffold as a support, the bottom of the scaffold is directly welded on the longitudinal I-steel, the support overcomes the defects that the inertia during the pushing starting and stopping and the support distortion caused by asynchronous pushing need to be overcome in the pushing process, and the requirements on the integrity and the structural stability of the support are high. Each component of the support is welded by a professional welder, can be used after qualified detection of weld seam flaw detection, the support is constructed strictly according to a scheme, a tray buckle support base is firmly welded with a support longitudinal beam, the lower part of the support is connected with a bottom die I-shaped steel truss, the upper part of the support is connected with a beam part template lacing wire into a whole, the stability during pushing is improved, before pushing of the support, the support must be inspected and accepted by a project department and an inspection unit, and after the support is inspected and accepted, pushing construction can be carried out,
fifthly, pushing the bracket:
the pushing equipment mainly comprises a PLC synchronous pushing clamping control hydraulic pump station, an on-track heavy-load pushing machine (a jack and a rail clamping device) and a stay wire type displacement collector. Data are integrated to a hydraulic pump station control center, the pushing speed and the pushing displacement can be manually adjusted, and support pushing construction is carried out after the pushing section steel bar formwork construction is completed. One steel rail of each group of slide ways is provided with 1 set of PLC synchronous on-rail heavy load pushing and moving machine, and the PLC synchronous on-rail heavy load pushing and moving machine mainly comprises a 200t rail clamping jack and a 50t pushing and moving jack. Every 2 slides are 1 control point, 3 control points altogether, 1 displacement detection sensor of precision 0.1mm is installed to every control point, feedback to PLC pushes away in step and presss from both sides tightly on controlling hydraulic pump station, can accurate control jack advancing speed and displacement, guarantee the support and push away the synchronism, the double control measure is carried out to the top synchronism, on the one hand, collect displacement data through stay-supported displacement sensor, sensor precision 0.1mm, feedback to the master control platform in real time, adjust jack top thrust, form closed control system and realize displacement synchronization. In addition, scale marks are made on the walking track, a scale pointer is arranged at the front end of the slideway, a specially-assigned person is arranged to observe displacement, data collected by the sensor is rechecked, in the pushing process, the specially-assigned person is arranged to observe a support welding opening and support stability every time one stroke is pushed, repair welding reinforcement is immediately carried out when open welding and deformation are found,
sixthly, accurately positioning:
before construction, marking a central line of a pushing support beam on a slide way, marking a designed beam central line on a steel rail, arranging a specially-assigned person to observe the in-position condition, observing the folding condition of the center of the 0# block and the central line of the a1 block on the 0# block of the 30# pier by a measuring person, and when the central line is within 1m before folding, starting to report monitoring data to the control console backwards, wherein the monitoring data is reported every 10 cm; reporting every 2cm within 30cm, reporting every 5mm within 5cm, reporting every 1mm within 2cm until the slide way foundation is in place, and installing a limiting device at the position where the slide way foundation is pushed to be in place to prevent the pushing construction from exceeding the top. The limiting device adopts a mode of welding a transverse support on the steel rail slideway for clamping,
seventhly, adjusting and locking in place:
and measuring the positions of the support templates by using a total station at positions 10m and 1m before the support is in place, and finely adjusting to correct the deviation of the support body so as to ensure that the support body synchronously jacks in a correct posture. And after the support reaches the designed position, measuring the coordinates of the template support again, correcting the template deviation through the operation of a single jack until the template deviation is accurately positioned, and reinforcing the slideway foundation of the support system in-place area after the pushing is positioned in place in a manner that 18# double-spliced I-steel is placed in the in-place area in advance, wherein the top of the I-steel is 5mm lower than the top of the steel rail. The outer side of the steel rail at the bottom of the H-shaped steel is filled with square timber and firmly wedged, and the limiting device and the H-shaped steel are welded into a whole, so that the integral stress effect is increased,
eighthly, pouring concrete:
concrete pouring of the swivel T-shaped structure is carried out in a skylight point by adopting a pump truck, concrete is poured for three times, the elevation of the beam bottom of the beam area is measured before and after each pouring and before and after tensioning, the elevation of the vertical mold of the next beam section is adjusted, linear monitoring work is well carried out, and the line type and the elevation of the beam body are ensured to meet the design requirements.
The invention has the technical effects that: aiming at the characteristics of high driving frequency, short interval, short distance between the bridge and the Jinghush high-speed rail and short construction period of the bridge, the construction method of assembling and pushing at the side position of the integral support of the turning beam of the high-speed railway is designed and adopted, the construction workload of the adjacent Jinghush high-speed rail is reduced, and the construction safety risk is reduced. The construction period is shortened, and a set of sliding system with steel rails as sliding rails, copper-ink alloy as sliding sheets, U-shaped clamping grooves and channel steel as sliding grooves is researched. The system has the characteristics of good bearing and wear-resisting properties and low sliding friction coefficient, ensures the stable and smooth propulsion of the support, develops a set of synchronous pushing system consisting of a computer master control system, a displacement sensor and a heavy-load propeller, can realize the closed-loop control of pushing displacement and speed, and has the precision of 0.1 mm. The synchronism and the accuracy of support pushing are ensured, aiming at the characteristics of high height, narrow width and weak support anti-overturning capability of the bridge, a row of auxiliary supporting leg upright columns are respectively added at two sides of a support, the height-width ratio of the support is reduced to 1.4 from the original 3.6, horizontal cross braces and inclined braces are arranged between the upright columns, the safety factor reaches 7.8, the integrity, the stability and the anti-overturning capability of the support are ensured, aiming at the characteristic of long support pushing distance, in order to prevent a template reinforcing steel bar from deforming in the pushing process, an I-shaped steel welding truss is used under a bottom die to replace a scaffold and is firmly welded with a support distribution beam, a disc buckle scaffold is used under a wing plate to support, the scaffold is firmly welded with the support distribution beam and the truss support, the stability of the template support in the pushing process is ensured, the driving safety of a Jingu high-speed railway is prevented from being influenced by support dismantling, after a sandbox is completed, a synchronous pushing system is used for pushing the support, the distance between the bracket and the Jinghush high-speed rail is ensured to be larger than the overturning radius of the bracket, and the influence on the driving safety is eliminated.
In the technical scheme, the middle support, the side support group and the plate buckle frame for moving the bridge to the installation point are important technical features, and the technical field of the construction support device and the method for the bridge adjacent to the business line has novelty, creativity and practicability, and the terms in the technical scheme can be explained and understood by the patent documents in the technical field.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Figure 1 is a schematic view of one of the first embodiments of the present invention,
figure 2 is a schematic view of the connection between the upright post 24 and the cross brace 25,
figure 3 is a schematic view of a second embodiment of the present invention,
figure 4 is a schematic view of a third embodiment of the present invention,
figure 5 is a left side view of figure 4,
figure 6 is a schematic installation view of a third embodiment of the present invention,
figure 7 is an installation schematic of the fourth embodiment of the present invention,
a middle support-81, a left support-82, a right support-83, a plate buckle frame-84, a base body-811, a vertical beam-812, a left support and a right support,
Sand cushion layer-21, strip base-22, draw beam-23, upright post-24, scissor support-25, sand box-26, cross arm-27, longitudinal beam-28, distribution longitudinal beam-29, distribution truss-20, strip portion-221, left side plate portion-222, right side plate portion-223, base-1, moving base-2, pushing telescopic cylinder-3, rear support-4, rear support beam-5, pressing claw-6, pressing telescopic cylinder-7, first displacement sensor-8, second displacement sensor-9, high-pressure liquid pump-91, liquid control valve-92, data converter-93, data processor-94, seat portion-11, first guide rail portion-12, second guide rail portion-13, third guide rail portion-14, sand box-11, sand box-3, distribution truss-20, strip portion-9, high-pressure liquid pump-91, liquid control valve-92, data converter-93, data processor-94, a sliding plate-101, a wear plate-102, a first end plate-103, a first end plate-104.
Detailed Description
Terms such as "having," "including," and "comprising," as used with respect to the present invention, are to be understood as not specifying the presence or addition of one or more other elements or combinations thereof, in accordance with the examination guidelines.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features mentioned in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other, and further, unless otherwise specified, the equipments and materials used in the following examples are commercially available, and if the processing conditions are not explicitly specified, please refer to the commercially available product specifications or follow the conventional method in the art.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a first embodiment of the present invention, which is specifically described in conjunction with the accompanying drawings, and includes a middle support 81, a left support 82, a right support 83, and a disk fastener 84, wherein the left support 82 and the right support 83 are respectively disposed on the side surface of the middle support 81, and the disk fastener 84 is respectively disposed on the left support 82 and the right support 83.
In the present embodiment, the intermediate support 81 is provided to include a base body 811 and an upright 812 and a lower end surface portion of the base body 811 is provided to be coupled with a ground surface, an upper end surface portion of the base body 811 is provided to be coupled with a lower end surface portion of the upright 812 and an upper end surface portion of the upright 812 is provided to be coupled with an intermediate portion of a bridge, a left support 82 is provided on one side surface portion of the upright 812 and a right support 83 is provided on the other side surface portion of the upright 812, the left support 82 is provided as a convex-letter-shaped seat body and the right support 83 is provided as a hollow bar body.
Through the intermediate strut 81, formed the support tie point to left branch brace 82 and right branch brace 83, by founding roof beam 812, realized being connected with left branch brace 82, realized being connected with right branch brace 83, by base member 811, realized that counter beam 812 supports, its technical aim at: for serving as a support carrier for the middle part of the bridge.
In the present embodiment, the left support 82 and the right support 83 are respectively configured to include a gravel cushion layer 21, a bar base 22, a tie beam 23, a column 24, a cross brace 25, a sand box 26, a cross arm 27, a longitudinal beam 28, a distribution longitudinal beam 29, and a distribution truss 20, and the gravel cushion layer 21 is disposed on the floor surface, a hydraulic jack is disposed between the bar base 22 and the column 24, and the cross brace 25 is disposed between the columns 24, an upper end of the column 24 is disposed with the sand box 26 and the cross arm 27 is disposed on the sand box 26, the longitudinal beam 28 is disposed on the cross arm 27 and the distribution longitudinal beam 29 is disposed on the longitudinal beam 28, the distribution truss 20 is disposed on the distribution longitudinal beam 29, and a disc buckle 84 is disposed on the distribution truss 20.
The left support 82 and the right support 83 form a support connection point for the disc buckling frame 84, the distribution truss 20 realizes the connection with the disc buckling frame 84, and the sand cushion layer 21, the bar base 22, the tie beam 23, the upright post 24, the cross brace 25, the sand box 26, the cross arm 27, the longitudinal beam 28 and the distribution longitudinal beam 29 realize the sliding support for the disc buckling frame 84, and the technical aim is that: the supporting carrier is used as a side part of the bridge.
In the present embodiment, the bar base 22 is provided as the bar 221, the left side plate portion 222, and the right side plate portion 223 and the left side portion of the upper end face of the bar 221 is provided so as to be coupled with the left side plate portion 222, the right side portion of the upper end face of the bar 221 is provided so as to be coupled with the right side plate portion 223 and the inner side portions of the left side plate portion 222 and the right side plate portion 223 are respectively provided so as to be coupled with the hydraulic jacks in contact, the lower end face portion of the bar 221 is provided so as to be coupled with the gravel layer 21 and the upper end face portion of the bar 221 is provided so as to be coupled with the hydraulic jacks in contact, the bar 221 is provided as a rectangular seat body and the left side plate portion 222 and the right side plate portion 223 are respectively provided as rectangular plate bodies, the gravel layer 21 is provided as a, the flasks 26 are provided as a strip and the cross arm 27, the longitudinal beam 28 and the distribution longitudinal beam 29 are each provided as an i-shaped strip.
The sand cushion layer 21, the bar base 22, the tension beam 23, the upright post 24, the cross brace 25, the sand box 26, the cross arm 27, the longitudinal beam 28, the distribution longitudinal beam 29 and the distribution truss 20 are connected with the disc buckling frame 84, and the technical purpose is as follows: the supporting carrier is used as a side formwork of the bridge.
In the present embodiment, the gravel cushion layer 21, the bar bases 22, the cross arms 27, the distribution longitudinal beams 29 and the hydraulic pushing devices are arranged to be vertically distributed and the tension beams 23 and the longitudinal beams 28 are arranged to be laterally distributed, one gravel cushion layer 21, one bar base 22, one cross arm 27, one distribution longitudinal beam 29 and one hydraulic pushing device are arranged to constitute one set of vertical components and a plurality of sets of vertical components are arranged to be distributed at intervals along the lateral center line of the tension beam 23, one tension beam 23 and one longitudinal beam 28 are arranged to constitute one set of horizontal components and a plurality of sets of horizontal components and a plurality of vertical columns 24 are arranged to be distributed at intervals along the vertical center line of the gravel cushion layer 21, the longitudinal beams 28 are arranged as segments and the longitudinal beams 28 are arranged to be distributed in a stepped manner along the lateral.
The sand cushion layer 21, the bar base 22, the tension beam 23, the upright post 24, the cross brace 25, the sand box 26, the cross arm 27, the longitudinal beam 28, the distribution longitudinal beam 29 and the distribution truss 20 are adopted, and the technical purposes are as follows: used for forming the three-dimensional support frame.
In this embodiment, the disc holder 84 is configured to couple with the left and right supports 82 and 83, respectively, and the disc holder 84 is configured to couple with a template-containing form of the bridge.
Through the dish knot frame 84, formed the support tie point to left branch brace 82 and right branch brace 83, detained frame 84 by the dish, realized being connected with left branch brace 82, realized being connected with right branch brace 83, its technical aim at: used as a support carrier for the formwork of a bridge.
In the present embodiment, the middle support 81 and the coil clasp bracket 84 and the left support 82 and the right support 83 are disposed to be distributed in a moving rack manner.
Fig. 3 shows a second embodiment of the present invention, which further comprises an inclined support beam 33, and the lower end of the inclined support beam 33 is arranged to be coupled to the foundation, and the upper end of the inclined support beam 33 is arranged to be coupled to the sand box 26 and the inclined support beam 33 is arranged to be distributed in an inclined manner with respect to the pillar 24.
The supporting connection point of the sand box 26 is formed by the inclined supporting beam 33, and the connection with the sand box 26 is realized by the inclined supporting beam 33, and the technical aim is as follows: for reinforcing the support of the left support 82 and the right support 83.
Fig. 4 is a fourth embodiment of the present invention, the hydraulic thrusting device includes a base 1, a movable base 2, a thrusting telescopic cylinder 3, a rear support 4, a rear support beam 5, a pressing claw 6, a pressing telescopic cylinder 7, a first displacement sensor 8, a second displacement sensor 9, a high-pressure liquid pump 91, a liquid control valve 92, a data converter 93 and a data processor 94, and the movable base 2, the rear support 4 and the rear support beam 5 are respectively disposed on the base 1, the thrusting telescopic cylinder 3 is disposed between the movable base 2 and the rear support 4, the pressing claw 6 is disposed on the rear support 4, the pressing telescopic cylinder 7 is disposed between the pressing claw 6 and the rear support beam 5, the liquid control valve 92 is respectively disposed between a hydraulic port of the thrusting telescopic cylinder 3 and the high-pressure liquid pump 91 and between a hydraulic port of the pressing telescopic cylinder 7 and the high-pressure liquid pump 91, the first displacement sensor 8 is disposed on the movable base 2, and the second displacement transmission is disposed on the rear support beam 5 The sensor 9 is provided with a data converter 93 between the first displacement sensor 8 and the data processor 94 and between the second displacement sensor 9 and the data processor 94, respectively, and the liquid control valve 92 is provided in connection with the data processor 94.
In this embodiment, the base 1 is configured to include a seat portion 11 and a first rail portion 12, the middle part of the upper end face of the seat 11 is configured to be coupled with the first rail part 12, the left side part of the upper end face of the seat 11 is configured to be coupled with the second rail part 13 and the left side part of the upper end face of the seat 11 is configured to be coupled with the third rail part 14, the rear end part of the upper end face of the seat 11 is configured to be coupled with the rear support beam 5 and the first rail part 12 is configured to be coupled with the rear support 4, the first rail part 12 is configured to be in embedded coupling with the pressing claw 6 and the second rail part 13 and the third rail part 14 are respectively configured to be in contact coupling with the moving base 2, the seat 11 is configured to be a rectangular plate-shaped body and the first rail part 12, the second rail part 13 and the third rail part 14 are respectively configured to be T-shaped bar-shaped bodies, and the first rail part 12, the second rail part 13 and the third rail part 14 are configured to be in a stepped distribution.
Through base 1, formed to moving base 2, back support 4, back supporting beam 5 and the support tie point that compresses tightly claw 6, by second guide rail portion 13 and third guide rail portion 14, realized with moving base 2 being connected, by first guide rail portion 12, realized with back support 4 being connected, realized with compressing tightly claw 6 being connected, by seat 11, realized with back supporting beam 5 being connected, its technical aim at: for serving as a support carrier for the mobile base 2, the rear mount 4 and the rear support beam 5.
In this embodiment, the movable base 2 is configured as an H-shaped strip, the lower end surface of the movable base 2 is configured to be in contact connection with the base 1, the side surface of the movable base 2 is provided with a connection lug, the connection lug of the movable base 2 is configured to be connected with the pushing expansion cylinder 3 through a pin, and the upper end surface of the movable base 2 is configured to be connected with the bridge bracket.
Through removing base 2, formed the support tie point to base 1 and top push telescoping cylinder 3, by removing base 2, realized being connected with base 1, realized being connected with top push telescoping cylinder 3, its technical aim at: used as a support carrier of a bridge bracket.
In this embodiment, the rear support 4 is configured as an L-shaped beam, the lower end surface of the transverse portion of the rear support 4 is configured to be coupled to the base 1 in a contact manner, the vertical portion of the rear support 4 is configured to be coupled to the jack 3 via a pin, and the upper end surface of the transverse portion of the rear support 4 is configured to be coupled to the pressing claw 6.
Through after-seat 4, formed the support tie point to base 1, top push telescoping cylinder 3 and compress tightly claw 6, by after-seat 4, realized being connected with base 1, realized with top push telescoping cylinder 3 being connected, realized with compressing tightly claw 6's being connected, its technical aim at: used as a pushing rear supporting body for pushing the telescopic cylinder 3.
In this embodiment, the pushing telescopic cylinder 3 is provided as a two-section telescopic cylinder, a hydraulic port of the pushing telescopic cylinder 3 is provided to be communicated with the liquid control valve 92, one end of the pushing telescopic cylinder 3 is provided to be coupled with the movable base 2 through a pin shaft, and the other end of the pushing telescopic cylinder 3 is provided to be coupled with the rear support 4 through a pin shaft.
Through top push telescoping cylinder 3, formed the support tie point to moving base 2, back support 4 and liquid control valve 92, by top push telescoping cylinder 3, realized with moving base 2 be connected, realized with back support 4 be connected, realized with liquid control valve 92 be connected, its technical aim at: for urging the movement of the mobile base 2 on the base 1.
In the present embodiment, the rear support beam 5 is provided as an L-shaped seat body and the lower end of the vertical portion of the rear support beam 5 is provided to be coupled with the base 1, the lower end surface portion of the lateral portion of the rear support beam 5 is provided to be coupled with the compression/expansion cylinder 7 and the lateral portion of the rear support beam 5 is provided to be coupled with the second displacement sensor 9.
Through back supporting beam 5, formed the support tie point to base 1, compress tightly telescoping cylinder 7 and liquid control valve 92, by back supporting beam 5, realized being connected with base 1, realized and compressing tightly being connected of telescoping cylinder 7, realized being connected with second displacement sensor 9, its technical aim at: for acting as a support carrier for the compression rams 7.
In the present embodiment, the pressing claw 6 is provided as a U-shaped rod-shaped body and the upper end of the pressing claw 6 is provided to be coupled with the pressing cylinder 7, and the open portion of the pressing claw 6 is provided to be coupled with the rear holder 4 in a clinch manner.
Through compressing tightly claw 6, formed the support tie point to rear support 4 and compress tightly telescoping cylinder 7, by compressing tightly claw 6, realized being connected with rear support 4, realized and compressing tightly being connected of telescoping cylinder 7, its technical aim at: for serving as a connecting intermediate of the rear support 4 with the base 1.
In the present embodiment, the compression telescopic cylinder 7 is provided as a two-stage telescopic cylinder and the hydraulic port of the compression telescopic cylinder 7 is provided in communication with the liquid control valve 92, one end of the compression telescopic cylinder 7 is provided to be coupled with the rear support beam 5 and the other end of the compression telescopic cylinder 7 is provided to be coupled with the compression pawl 6.
Through compressing tightly telescoping cylinder 7, formed the support tie point to back supporting beam 5, compressing tightly claw 6 and liquid control valve 92, by compressing tightly telescoping cylinder 7, realized being connected with back supporting beam 5, realized and compressing tightly claw 6's being connected, realized being connected with liquid control valve 92, its technical aim at: for generating a pressing force on the rear seat 4.
In the present embodiment, the output port portion of the high-pressure liquid pump 91 is provided in communication with the liquid control valve 92 and the input port portion of the high-pressure liquid pump 91 is provided in communication with the liquid tank.
Through high-pressure liquid pump 91, formed the support tie point to liquid control valve 92, by high-pressure liquid pump 91, realized being connected with liquid control valve 92, its technical aim at: used for generating high-pressure liquid for the pushing telescopic cylinder 3 and the pressing telescopic cylinder 7.
In the present embodiment, the fluid control valve 92 is configured as an electromagnetic hydraulic flow valve and the control interface of the fluid control valve 92 is configured to be connected to the data processor 94, the input port of the fluid control valve 92 is configured to be coupled to the high-pressure fluid pump 91 and the output port of the fluid control valve 92 is configured to be coupled to the jacking telescopic cylinder 3 and the compacting telescopic cylinder 7, respectively.
Through liquid control valve 92, formed to push up the telescopic cylinder 3, compress tightly the support tie point of telescopic cylinder 7 and high-pressure liquid pump 91, by liquid control valve 92, realized with pushing up the connection of telescopic cylinder 3, realized with compressing tightly the connection of telescopic cylinder 7, realized with high-pressure liquid pump 91 be connected, realized with data processor 94 be connected, its technical aim at: used for controlling the working states of the pushing telescopic cylinder 3 and the pressing telescopic cylinder 7.
In the present embodiment, the housing of the first displacement sensor 8 is provided to be coupled with the moving base 2 and the housing of the second displacement sensor 9 is provided to be coupled with the rear support beam 5, and the output interface of the first displacement sensor 8 and the output interface of the second displacement sensor 9 are provided to be connected with the data converter 93, respectively.
Through first displacement sensor 8 and second displacement sensor 9, formed the support tie point to mobile base 2, back supporting beam 5 and data converter 93, by first displacement sensor 8 and second displacement sensor 9, realized being connected with data converter 93, by first displacement sensor 8, realized being connected with mobile base 2, its technical purpose lies in: the movement distance signal for picking up the mobile base 2, by the second displacement sensor 9, has realized being connected with back supporting beam 5, its technical aim lies in: for picking up a distance signal between two adjacent rear support beams 5.
In the present embodiment, the data converter 93 is provided as an AD conversion module and the input interface of the data converter 93 is provided to be connected with the first displacement sensor 8 and the second displacement sensor 9, respectively, and the output interface of the data converter 93 is provided to be connected with the data processor 94.
Through data converter 93, formed the support connection point to first displacement sensor 8, second displacement sensor 9 and data processor 94, by data converter 93, realized the connection with first displacement sensor 8, realized the connection with second displacement sensor 9, realized the connection with data processor 94, its technical aim at: for digital-to-analog conversion of the signals picked up by the first displacement sensor 8 and the second displacement sensor 9.
In the present embodiment, the data processor 94 is provided as a computer having a CPU and an input interface of the data processor 94 is provided in connection with the data converter 93, and an output interface of the data processor 94 is provided in connection with the liquid control valve 92.
The data processor 94 forms a supporting connection point for the liquid control valve 92 and the data converter 93, the data processor 94 realizes the connection with the liquid control valve 92 and the data converter 93, and the technical purpose is that: for forming an input signal to the liquid control valve 92 based on the signals picked up by the first and second displacement sensors 8, 9.
In this embodiment, the base 1, the mobile base 2, the pushing telescopic cylinder 3, the first displacement sensor 8, the second displacement sensor 9, the high-pressure liquid pump 91, the liquid control valve 92, the data converter 93 and the data processor 94 are arranged to be distributed in a real-time monitoring manner, the base 1, the mobile base 2, the pushing telescopic cylinder 3, the rear support 4, the rear support beam 5, the pressing claw 6 and the pressing telescopic cylinder 7 are arranged to be distributed in an adjustable rear support manner, the center line of the base 1, the center line of the pushing telescopic cylinder 3, the center line of the rear support 4, the center line of the rear support beam 5, the center line of the pressing claw 6 and the center line of the pressing telescopic cylinder 7 are arranged on the same straight line, one base 1, one pushing telescopic cylinder 3, one rear support 4, one rear support beam 5, one pressing claw 6, one pressing telescopic cylinder 7, one first displacement sensor 8 and one second displacement sensor 9 are arranged to form a group of pushing support components, the plurality of groups of pushing support parts are arranged at intervals along the transverse central line of the movable base 2.
Fig. 7 shows a fourth embodiment of the present invention, which further includes a sliding plate 101, a wear plate 102, a first end plate 103, and a first end plate 104, and upper end surface portions of the sliding plate 101 are respectively configured to be coupled with the wear plate 102, the first end plate 103, and the first end plate 104, ends of the wear plate 102 are respectively configured to be coupled with the first end plate 103 and the first end plate 104, and the sliding plate 101 is respectively configured to be coupled with the second rail portion 13 and the third rail portion 14, and the sliding plate 101, the first end plate 103, and the first end plate 104 are respectively configured to be a U-shaped plate-shaped body, and the wear plate 102 is configured to be a copper-graphite alloy strip-shaped.
Through sliding plate 101, wear-resisting plate 102, first end board 103 and first end board 104, formed the support connection point to base 1, by sliding plate 101, realized being connected with second guide rail portion 13, realized being connected with third guide rail portion 14, by wear-resisting plate 102, realized being connected with business line bridge support, by first end board 103 and first end board 104, realized being connected of wear-resisting plate 102 and sliding plate 101, its technical aim lies in: the wear-resistant protection device is used for protecting the business line bridge support from wear.
In a second embodiment of the present invention, the middle support 81, the side support groups and the disc-buckle frame 84 are coupled to each other in such a manner as to move the bridge to the installation point.
In the present embodiment, the side support group is configured to include a left support 82 and a right support 83.
In this embodiment, a first attachment device with an inclined support beam 33 is also included and is arranged on the side support group
A second embodiment of the invention is based on the first embodiment.
The invention is further described below with reference to the following examples, which are intended to illustrate the invention but not to limit it further.
A construction method for a bridge adjacent to a business line, according to a first embodiment of the present invention, comprises the steps of:
in a construction site far from an existing rail transit business line, a base body 811 is placed on a foundation, an upright 812 is mounted on the base body 811, the middle portion of a bridge is placed on the upright 812, a left support 82 is mounted on the left side surface of the upright 812, a right support 83 is mounted on the right side surface of the upright 812, a sand mat layer 21 is placed on the foundation, a bar portion 221 is mounted on the sand mat layer 21, a horizontal direction pull beam 23 is mounted between the bar portions 221, a hydraulic jack is mounted between the left side plate portion 222 and the right side plate portion 223, an upright 24 is mounted on a movable base 2, a shear brace 25 is mounted between the upright 24 in the horizontal and vertical directions, a vertical direction sand box 26 is mounted between the upright 24, a cross arm 27 is mounted on the sand box 26, a horizontal direction longitudinal beam 28 is mounted between the cross arms 27, a distribution longitudinal beam 29 is mounted between the longitudinal beams 28, a distribution truss 20 is mounted on the distribution longitudinal, the plate buckle frame 84 is installed on the distribution truss 20, the side face formwork of the bridge is installed in the plate buckle frame 84, the side face formwork of the bridge is poured to manufacture the side face of the bridge, the side face of the bridge is manufactured, the upright post 24 of the business line bridge support is installed on the movable base 2 through a hydraulic pushing device, a high-pressure liquid pump 91 is started, high-pressure liquid as power is communicated with the pushing telescopic cylinders 3 in a plurality of groups of pushing support components through a liquid control valve 92, the pushing telescopic cylinders 3 in the plurality of groups of pushing support components are extended to push the movable base 2 to move on the second guide rail part 13 and the third guide rail part 14 in the plurality of groups of pushing support components, the movement length signals of the movable base 2 on the second guide rail part 13 and the third guide rail part 14 are picked up through the first displacement sensor 8, the distance signals between two adjacent rear support beams 5 are picked up through the second displacement sensor 9, signals of the first displacement sensor 8 and the second displacement sensor 9 are converted by a data converter 93 and then input into a data processor 94, data processing is carried out by the data processor 94, a movement length difference signal corresponding to the moving base 2 part of the pushing telescopic cylinder 3 in a plurality of groups of pushing support components is obtained, a distance difference signal between two adjacent rear support beams 5 is obtained, the difference signal is input into a liquid control valve 92, the working state of the pushing telescopic cylinder 3 in the plurality of groups of pushing support components is controlled by the liquid control valve 92, the moving base 2 is ensured to synchronously move on the second guide rail part 13 and the third guide rail part 14 in the plurality of groups of pushing support components, when the pushing telescopic cylinder 3 needs to move forwards, the pressing telescopic cylinder 7 is in a contraction state through the liquid control valve 92, the pressing claw 6 is separated from the rear support 4, through liquid control valve 92, make the top push telescoping cylinder 3 be in the contraction state, back support 4 moves along first guide rail portion 12, rethread liquid control valve 92, make and compress tightly telescoping cylinder 7 and be in the extension state, compress tightly the claw 6 and produce the pressure power to back support 4, back support 4 is connected with first guide rail portion 12, top push telescoping cylinder 3 gets into next top push working procedure to make the side face template of bridge move the mounting point of business line bridge.
The second embodiment of the present invention comprises the following steps:
firstly, construction of a strip foundation:
the strip foundation is provided with 12 rows in total, and C35 reinforced concrete is adopted. The basic structure is divided into 2 parts, the basic width of the translation area is 1.2m, and the thickness is 0.8 m. The base width of the pushing positioning area is 2m, and the thickness is 1 m. The total length of the foundation is 43.5 m. The filling part is wider than the concrete foundation by 1m and has a thickness of not less than 50 cm. 5 tie beams are arranged between the strip foundations, the overall stability of the foundations is improved, the weight of the pushing support and the steel bar formwork is large, and the requirements on elevation and coordinate accuracy are high after the pushing is in place, so that the bearing capacity of the strip foundations must meet the design requirements, and no settlement is guaranteed in the construction process. The strip foundation is filled by sand and broken stone, and can be constructed next step after the foundation bearing capacity test is qualified, after the strip foundation construction is completed, the strip foundation is subjected to a pre-pressing test to eliminate the non-elastic deformation of the strip foundation, and after the support is pushed to be in place and concrete is poured, the beam body elevation and the coordinates meet the design requirements,
secondly, track construction:
the rail adopts P60 instrument rail, and drilling on the bar basis uses the sulphur anchor spike, fixes the rail on the bar basis with the bullet strip fastener. The rail joints are connected by using clamping plates, the seams are flush, and no staggered teeth exist. The drawing test is carried out to the sulfur anchoring spike, and after the test is qualified, the track construction can be carried out, the support side position is assembled to push away construction and has high requirements on the straightness of the track, the spacing and the elevation of the track must be strictly controlled in the construction, all the tracks must be parallel to each other, and the spacing error must not be greater than 1 cm. The track adopts the flat slope, adopts the surveyor's level to measure the track top surface elevation, and accurate control track top surface elevation must not be greater than 5mm at same rail both ends error. Thereby ensuring the smooth pushing of the bracket and the accurate butt joint between the bracket and the 0# block after the bracket is in place,
thirdly, constructing a slideway:
the slideway beam adopts double-spliced H400 steel, and 5 ribbed plates are arranged on each side between the upper and lower seat plates of the H-shaped steel at the position to ensure the stress of the steel below the steel pipe column. The sliding medium is a copper-ink alloy sliding sheet with high hardness and small friction factor, and the sliding medium is reversely buckled on a track by using 10# channel steel and is welded with H-shaped steel. In order to ensure the stability of the copper-ink alloy sliding plate, the copper-ink alloy sliding plate is fixed in the channel steel by using a U-shaped clamping groove,
fourthly, erecting a support:
the support system adopts steel pipe column and I-shaped steel structure system, and the steel pipe column model is diameter 630mm, and the wall thickness is 10 mm. The steel pipe columns on one side are arranged into 6 rows, 6 steel pipes in each row are welded and connected through steel pipes with the diameter of 180 x 6mm, a mold dropping sand box is arranged above the steel pipe columns, and the bottom of the sand box is welded with the steel pipe columns. The double-spliced 45A I-steel serves as a longitudinal and transverse distribution beam above the sand box, the bottom of the beam above the I-steel is of a 16I-steel truss structure, the flange plate part adopts a disc buckle type scaffold as a support, the bottom of the scaffold is directly welded on the longitudinal I-steel, the support overcomes the defects that the inertia during the pushing starting and stopping and the support distortion caused by asynchronous pushing need to be overcome in the pushing process, and the requirements on the integrity and the structural stability of the support are high. Each component of the support is welded by a professional welder, can be used after qualified detection of weld seam flaw detection, the support is constructed strictly according to a scheme, a tray buckle support base is firmly welded with a support longitudinal beam, the lower part of the support is connected with a bottom die I-shaped steel truss, the upper part of the support is connected with a beam part template lacing wire into a whole, the stability during pushing is improved, before pushing of the support, the support must be inspected and accepted by a project department and an inspection unit, and after the support is inspected and accepted, pushing construction can be carried out,
fifthly, pushing the bracket:
the pushing equipment mainly comprises a PLC synchronous pushing clamping control hydraulic pump station, an on-track heavy-load pushing machine (a jack and a rail clamping device) and a stay wire type displacement collector. Data are integrated to a hydraulic pump station control center, the pushing speed and the pushing displacement can be manually adjusted, and support pushing construction is carried out after the pushing section steel bar formwork construction is completed. One steel rail of each group of slide ways is provided with 1 set of PLC synchronous on-rail heavy load pushing and moving machine, and the PLC synchronous on-rail heavy load pushing and moving machine mainly comprises a 200t rail clamping jack and a 50t pushing and moving jack. Every 2 slides are 1 control point, 3 control points altogether, 1 displacement detection sensor of precision 0.1mm is installed to every control point, feedback to PLC pushes away in step and presss from both sides tightly on controlling hydraulic pump station, can accurate control jack advancing speed and displacement, guarantee the support and push away the synchronism, the double control measure is carried out to the top synchronism, on the one hand, collect displacement data through stay-supported displacement sensor, sensor precision 0.1mm, feedback to the master control platform in real time, adjust jack top thrust, form closed control system and realize displacement synchronization. In addition, scale marks are made on the walking track, a scale pointer is arranged at the front end of the slideway, a specially-assigned person is arranged to observe displacement, data collected by the sensor is rechecked, in the pushing process, the specially-assigned person is arranged to observe a support welding opening and support stability every time one stroke is pushed, repair welding reinforcement is immediately carried out when open welding and deformation are found,
sixthly, accurately positioning:
before construction, marking a central line of a pushing support beam on a slide way, marking a designed beam central line on a steel rail, arranging a specially-assigned person to observe the in-position condition, observing the folding condition of the center of the 0# block and the central line of the a1 block on the 0# block of the 30# pier by a measuring person, and when the central line is within 1m before folding, starting to report monitoring data to the control console backwards, wherein the monitoring data is reported every 10 cm; reporting every 2cm within 30cm, reporting every 5mm within 5cm, reporting every 1mm within 2cm until the slide way foundation is in place, and installing a limiting device at the position where the slide way foundation is pushed to be in place to prevent the pushing construction from exceeding the top. The limiting device adopts a mode of welding a transverse support on the steel rail slideway for clamping,
seventhly, adjusting and locking in place:
and measuring the positions of the support templates by using a total station at positions 10m and 1m before the support is in place, and finely adjusting to correct the deviation of the support body so as to ensure that the support body synchronously jacks in a correct posture. And after the support reaches the designed position, measuring the coordinates of the template support again, correcting the template deviation through the operation of a single jack until the template deviation is accurately positioned, and reinforcing the slideway foundation of the support system in-place area after the pushing is positioned in place in a manner that 18# double-spliced I-steel is placed in the in-place area in advance, wherein the top of the I-steel is 5mm lower than the top of the steel rail. The outer side of the steel rail at the bottom of the H-shaped steel is filled with square timber and firmly wedged, and the limiting device and the H-shaped steel are welded into a whole, so that the integral stress effect is increased,
eighthly, pouring concrete:
concrete pouring of the swivel T-shaped structure is carried out in a skylight point by adopting a pump truck, concrete is poured for three times, the elevation of the beam bottom of the beam area is measured before and after each pouring and before and after tensioning, the elevation of the vertical mold of the next beam section is adjusted, linear monitoring work is well carried out, and the line type and the elevation of the beam body are ensured to meet the design requirements.
The invention has the following characteristics:
1. due to the design of the middle support 81, the side support group and the disc buckling frame 84, the disc buckling frame 84 is used for supporting the side formwork of the supporting bridge, the middle support 81 is used for supporting the middle part of the supporting bridge, the side support group is used for moving the bridge, the construction of the bridge far away from the existing rail transit business line is realized, and the bridge construction efficiency is improved.
2. Due to the design of the oblique support beam 33, a reinforced support is achieved.
3. Due to the design of the strip base 22, a sliding movement is achieved.
4. Due to the design of the synchronous pushing device body and the electro-hydraulic device, the displacement of the business line bridge support is realized through the synchronous pushing device body, and the displacement length of the synchronous pushing device body is controlled through the electro-hydraulic device, so that the synchronous displacement of the business line bridge support is realized.
5. Due to the design of the base 1 and the movable base 2, hydraulic pushing is achieved.
6. Due to the design of the first displacement sensor 8, the second displacement sensor 9, the high-pressure liquid pump 91, the liquid control valve 92, the data converter 93 and the data processor 94, the linkage control of the electric signal and the hydraulic signal is realized.
7. Due to the design of the rear support 4, the rear support beam 5, the pressing claw 6 and the pressing telescopic cylinder 7, the adjustment of the rear support body is realized.
8. Because the structural shape is limited by the numerical range, the numerical range is the technical characteristic of the technical scheme of the invention, and is not the technical characteristic obtained by formula calculation or limited tests, and tests show that the technical characteristic of the numerical range achieves good technical effect.
9. Due to the design of the technical characteristics of the invention, tests show that each performance index of the invention is at least 1.7 times of the existing performance index under the action of the single and mutual combination of the technical characteristics, and the invention has good market value through evaluation.
Still other features associated with the intermediate supports 81, the side support groups and the coil brackets 84 of the mobile bridge to the installation point are all one of the embodiments of the present invention, and the features of the above-described embodiments may be combined in any combination, and all possible combinations of the features of the above-described embodiments will not be described again in order to meet the requirements of patent laws, patent practice rules and review guidelines.
Therefore, in the technical field of the construction bracket device and method for the bridge adjacent to the business line, all technical contents including the middle support 81 for supporting the middle part of the bridge, the side support groups for supporting the side parts of the bridge, and the disc fastener frame 84 disposed on the side support groups and for supporting the side part formwork of the bridge are within the scope of the present invention.
Claims (10)
1. The utility model provides a construction support device for being close to business line bridge which characterized by: the bridge comprises an intermediate support (81) for supporting the middle part of the bridge, a side support group for supporting the side part of the bridge, and a disc buckling frame (84) which is arranged on the side support group and is used for supporting the side part template of the bridge.
2. The construction prop device for an adjacent business line bridge, according to claim 1, wherein: the middle support (81), the side support groups and the coil buckle frame (84) are connected with each other in a manner of moving the bridge to the installation point.
3. The construction prop device for an adjacent business line bridge, according to claim 1, wherein: the side support group is arranged to comprise a left support (82) and a right support (83),
alternatively, a first attachment device with an inclined support beam (33) is included and is arranged on the side support group.
4. The construction prop device for an adjacent business line bridge, according to claim 3, wherein: a left support (82) and a right support (83) are respectively arranged on the side surface part of the middle support (81), a disc buckle frame (84) is respectively arranged on the left support (82) and the right support (83),
or the lower end head of the inclined support beam (33) is connected with the foundation, the upper end head of the inclined support beam (33) is connected with the sand box (26) and the inclined support beam (33) is distributed in an inclined mode with the upright post (24).
5. The construction prop device for an adjacent business line bridge, according to claim 4, wherein: the middle support (81) is set to comprise a base body (811) and an upright beam (812), the lower end surface part of the base body (811) is set to be connected with a ground plane, the upper end surface part of the base body (811) is set to be connected with the lower end surface part of the upright beam (812) and the upper end surface part of the upright beam (812) is set to be connected with the middle part of a bridge, one side part of the upright beam (812) is provided with a left support (82) and the other side part of the upright beam (812) is provided with a right support (83), the left support (82) is set to be a convex-shaped seat body and the right support (83) is set to be a hollow strip-shaped body,
or, the left support (82) and the right support (83) are respectively arranged to comprise a sand cushion layer (21), a bar base (22), a draw beam (23), a vertical column (24), a cross brace (25), a sand box (26), cross arms (27), longitudinal beams (28), a distribution longitudinal beam (29) and a distribution truss (20), the sand cushion layer (21) is arranged on the ground plane, a hydraulic pushing device is arranged between the bar base (22) and the vertical column (24) and the cross brace (25) is arranged between the vertical columns (24), the upper end of the vertical column (24) is provided with the cross arm (27) which is arranged on the sand box (26) and the sand box (26), the longitudinal beam (28) is arranged on the cross arm (27) and the distribution longitudinal beam (29) is arranged on the longitudinal beam (28), the distribution truss (20) is arranged on the distribution longitudinal beam (29) and a disc buckling frame (84) is arranged on the distribution truss (20),
or the strip base (22) is provided with a strip portion (221), a left side plate portion (222) and a right side plate portion (223), the left side portion of the upper end face of the strip portion (221) is provided to be coupled with the left side plate portion (222), the right side portion of the upper end face of the strip portion (221) is provided to be coupled with the right side plate portion (223) and the inner side portions of the left side plate portion (222) and the right side plate portion (223) are respectively provided to be coupled with a hydraulic thruster in a contact manner, the lower end face portion of the strip portion (221) is provided to be coupled with the sand cushion layer (21) and the upper end face portion of the strip portion (221) is provided to be coupled with the hydraulic thruster in a contact manner, the strip portion (221) is provided as a rectangular seat body and the left side plate portion (222) and the right side plate portion (223) are respectively provided as, the upright column (24) is arranged into a circular tubular body, the cross brace (25) and the distribution truss (20) are respectively arranged into a Z-shaped frame body, the sand box (26) is arranged into a strip body, the cross arm (27), the longitudinal beam (28) and the distribution longitudinal beam (29) are respectively arranged into an I-shaped strip body,
or, the sand cushion layer (21), the bar base (22), the cross arm (27), the distribution longitudinal beam (29) and the hydraulic jacking device are arranged to be vertically distributed, the tension beams (23) and the longitudinal beams (28) are transversely distributed, the sand cushion layer (21), the bar base (22), the cross arm (27), the distribution longitudinal beam (29) and the hydraulic jacking device are arranged to form a group of vertical components, a plurality of groups of vertical components are arranged to be distributed along the transverse central line of the tension beams (23) at intervals, the tension beams (23) and the longitudinal beams (28) are arranged to form a group of horizontal components, a plurality of groups of horizontal components and a plurality of upright columns (24) are arranged to be distributed along the vertical central line of the sand cushion layer (21) at intervals, the longitudinal beams (28) are arranged to be sectional bodies, and the longitudinal beams (28) are arranged to be distributed along the transverse central line of the bridge,
or the plate buckling frame (84) is respectively connected with the left support (82) and the right support (83) in a coupling mode, and the plate buckling frame (84) is connected with the template containing mode of the bridge in a containing mode.
6. A construction prop device and method for an adjacent line of business bridge according to any one of claims 1 to 5, wherein: the middle support (81), the disc buckle frame (84), the left support (82) and the right support (83) are distributed in a movable frame mode.
7. The construction prop device for an adjacent business line bridge, according to claim 4, wherein: the hydraulic pushing device comprises a base (1), a movable base (2), a pushing telescopic cylinder (3), a rear support (4), a rear support beam (5), a pressing claw (6), a pressing telescopic cylinder (7), a first displacement sensor (8), a second displacement sensor (9), a high-pressure liquid pump (91), a liquid control valve (92), a data converter (93) and a data processor (94), wherein the base (1) is provided with the movable base (2), the rear support (4) and the rear support beam (5), the pushing telescopic cylinder (3) is arranged between the movable base (2) and the rear support (4), the rear support (4) is provided with the pressing claw (6), the pressing telescopic cylinder (7) is arranged between the pressing claw (6) and the rear support beam (5), and a hydraulic port of the pushing telescopic cylinder (3) and a high-pressure liquid pump (91) and a hydraulic port of the pressing telescopic cylinder (7) and a high-pressure liquid pump (91) are arranged between the pressing telescopic cylinder (7) and the high-pressure liquid pump (91) A liquid control valve (92) provided with a first displacement sensor (8) on the moving base (2) and a second displacement sensor (9) on the rear support beam (5), a data converter (93) between the first displacement sensor (8) and the data processor (94) and between the second displacement sensor (9) and the data processor (94) respectively, and the liquid control valve (92) being provided to be connected with the data processor (94),
or, the base (1) is set to include a seat portion (11), a first guide rail portion (12), a second guide rail portion (13) and a third guide rail portion (14) and a middle portion of an upper end face of the seat portion (11) is set to be coupled with the first guide rail portion (12), a left side portion of an upper end face of the seat portion (11) is set to be coupled with the second guide rail portion (13) and a left side portion of an upper end face of the seat portion (11) is set to be coupled with the third guide rail portion (14), a rear end portion of an upper end face of the seat portion (11) is set to be coupled with a rear support beam (5) and the first guide rail portion (12) is set to be coupled with a rear support (4), the first guide rail portion (12) is set to be in embedded coupling with a pressing claw (6) and the second guide rail portion (13) and the third guide rail portion (14) are respectively set to be in rectangular coupling with a mobile base (2), the seat portion (11) is set to be a plate and the first guide rail portion, The second guide rail part (13) and the third guide rail part (14) are respectively arranged into a T-shaped strip body, the first guide rail part (12), the second guide rail part (13) and the third guide rail part (14) are arranged into a step distribution,
or the movable base (2) is arranged into an H-shaped strip-shaped body, the lower end surface part of the movable base (2) is connected with the base (1) in a contact way, the side surface part of the movable base (2) is provided with a connecting lug, the connecting lug of the movable base (2) is connected with the pushing telescopic cylinder (3) through a pin shaft, the upper end surface part of the movable base (2) is connected with the bridge bracket,
or the rear support (4) is arranged to be an L-shaped beam body, the lower end surface part of the transverse part of the rear support (4) is arranged to be connected with the base (1) in a contact way, the vertical part of the rear support (4) is provided with a connecting lug, the connecting lug of the rear support (4) is arranged to be connected with the pushing telescopic cylinder (3) through a pin shaft, the upper end surface part of the transverse part of the rear support (4) is arranged to be connected with the pressing claw (6),
or the pushing telescopic cylinder (3) is arranged to be a two-section telescopic cylinder, a hydraulic port of the pushing telescopic cylinder (3) is communicated with the liquid control valve (92), one end of the pushing telescopic cylinder (3) is connected with the movable base (2) through a pin shaft, the other end of the pushing telescopic cylinder (3) is connected with the rear support (4) through a pin shaft,
or the rear supporting beam (5) is arranged to be an L-shaped seat body, the lower end of the vertical part of the rear supporting beam (5) is connected with the base (1), the lower end surface part of the horizontal part of the rear supporting beam (5) is connected with the compression telescopic cylinder (7), the side part of the horizontal part of the rear supporting beam (5) is connected with the second displacement sensor (9),
or the pressing claw (6) is arranged into a U-shaped rod-shaped body, the upper end head of the pressing claw (6) is connected with the pressing telescopic cylinder (7), the open part of the pressing claw (6) is connected with the rear support (4) in a clamping and pressing way,
or the compression telescopic cylinder (7) is set to be a two-section telescopic cylinder, a hydraulic port of the compression telescopic cylinder (7) is set to be communicated with the liquid control valve (92), one end head of the compression telescopic cylinder (7) is set to be connected with the rear supporting beam (5) and the other end head of the compression telescopic cylinder (7) is set to be connected with the compression claw (6),
or the output port part of the high-pressure liquid pump (91) is set to be communicated with the liquid control valve (92) and the input port part of the high-pressure liquid pump (91) is set to be communicated with the liquid tank,
or the liquid control valve (92) is set as an electromagnetic hydraulic flow valve, the control interface of the liquid control valve (92) is set to be connected with the data processor (94), the input port of the liquid control valve (92) is set to be connected with the high-pressure liquid pump (91) and the output port of the liquid control valve (92) is respectively set to be connected with the pushing telescopic cylinder (3) and the pressing telescopic cylinder (7),
or the shell of the first displacement sensor (8) is connected with the mobile base (2) and the shell of the second displacement sensor (9) is connected with the rear supporting beam (5), the output interface of the first displacement sensor (8) and the output interface of the second displacement sensor (9) are respectively connected with the data converter (93),
or the data converter (93) is set as an AD conversion module, the input interface of the data converter (93) is respectively set to be connected with the first displacement sensor (8) and the second displacement sensor (9), the output interface of the data converter (93) is set to be connected with the data processor (94),
or the data processor (94) is arranged as a computer with a CPU and the input interface of the data processor (94) is arranged to be connected with the data converter (93), the output interface of the data processor (94) is arranged to be connected with the liquid control valve (92),
or the base (1), the movable base (2), the pushing telescopic cylinder (3), the first displacement sensor (8), the second displacement sensor (9), the high-pressure liquid pump (91), the liquid control valve (92), the data converter (93) and the data processor (94) are distributed in a real-time monitoring mode, the base (1), the movable base (2), the pushing telescopic cylinder (3), the rear support (4), the rear support beam (5), the pressing claw (6) and the pressing telescopic cylinder (7) are distributed in an adjustable rear support mode, the central line of the base (1), the central line of the pushing telescopic cylinder (3), the central line of the rear support (4), the central line of the rear support beam (5), the central line of the pressing claw (6) and the central line of the pressing telescopic cylinder (7) are arranged on the same straight line, and the base (1), the pushing telescopic cylinder (3) and the pressing telescopic cylinder (7) are arranged on the same straight line, The pushing device comprises a rear support (4), a rear support beam (5), a pressing claw (6), a pressing telescopic cylinder (7), a first displacement sensor (8) and a second displacement sensor (9) which are arranged to form a group of pushing support components, wherein the groups of pushing support components are arranged to be distributed at intervals along the transverse central line of the moving base (2).
8. The construction prop device for an adjacent business line bridge, according to claim 7, wherein: still include sliding plate (101), antifriction plate (102), first end board (103) and first end board (104) and the upper end face portion of sliding plate (101) sets up respectively to be coupleed with antifriction plate (102), first end board (103) and first end board (104), the end of antifriction plate (102) sets up respectively to be coupleed with first end board (103) and first end board (104) and sliding plate (101) set up respectively to be coupleed with second guide rail portion (13) and third guide rail portion (14), sliding plate (101), first end board (103) and first end board (104) set up respectively to the plate-like body of U font and antifriction plate (102) set up to the copper china ink bar body.
9. A construction method for a bridge adjacent to a business line is characterized by comprising the following steps: the method comprises the following steps:
in a construction site far from an existing rail transit business line, a base body (811) is placed on a foundation, a vertical beam (812) is installed on the base body (811), the middle part of a bridge is placed on the vertical beam (812), a left support (82) is installed on the left side surface of the vertical beam (812), a right support (83) is installed on the right side surface of the vertical beam (812), a sand cushion layer (21) is placed on the foundation, a bar part (221) is installed on the sand cushion layer (21), a bar part (23) is installed between bar parts (221) in the transverse direction, a hydraulic thruster is installed between a left side plate part (222) and a right side plate part (223), columns (24) are installed on a movable base (2), cross braces (25) are installed between the columns (24) in the transverse and vertical directions, sand boxes (26) are installed between the columns (24) in the vertical direction, and cross arms (27) are installed on the sand boxes (26), longitudinal beams (28) are arranged between cross arms (27) in the transverse direction, distribution longitudinal beams (29) are arranged between the longitudinal beams (28), distribution trusses (20) are arranged on the distribution longitudinal beams (29), a disc buckling frame (84) is arranged on the distribution trusses (20), side face templates of a bridge are arranged in the disc buckling frame (84), the side face templates of the bridge are poured to manufacture the side face of the bridge, the side face of the bridge is manufactured, an upright post (24) of a business line bridge support is arranged on a movable base (2) through a hydraulic pushing device, a high-pressure liquid pump (91) is started, high-pressure liquid serving as power is communicated with pushing telescopic cylinders (3) in multiple groups of pushing support components through a liquid control valve (92), the pushing telescopic cylinders (3) in the multiple groups of pushing support components are extended, and the movable base (2) is pushed to move on second guide rail parts (13) and third guide rail parts (14) in the multiple groups of pushing support components, the method comprises the steps that a first displacement sensor (8) picks up movement length signals of a moving base (2) on a second guide rail part (13) and a third guide rail part (14), a second displacement sensor (9) picks up distance signals between two adjacent rear supporting beams (5), the signals of the first displacement sensor (8) and the second displacement sensor (9) are subjected to signal conversion through a data converter (93) and then input into a data processor (94), the data processor (94) is used for processing data to obtain movement length difference signals of the moving base (2) part corresponding to the pushing telescopic cylinders (3) in a plurality of groups of pushing bracket parts, distance difference signals between the two adjacent rear supporting beams (5) are obtained, the difference signals are input into a liquid control valve (92), and the liquid control valve (92) is used for controlling the working state of the pushing telescopic cylinders (3) in the plurality of groups of pushing bracket parts, ensuring that the movable base (2) moves synchronously on a second guide rail part (13) and a third guide rail part (14) in a plurality of groups of pushing support parts, when the pushing telescopic cylinder (3) needs to move forwards, the pressing telescopic cylinder (7) is in a contraction state through the liquid control valve (92), the pressing claw (6) is separated from the rear support (4), through liquid control valve (92), make the top push telescoping cylinder (3) be in the contraction state, back support (4) move along first guide rail portion (12), rethread liquid control valve (92), make and compress tightly telescoping cylinder (7) and be in the extension state, compress tightly claw (6) and produce the pressure power to back support (4), back support (4) are connected with first guide rail portion (12), top push telescoping cylinder (3) enter into next top push working procedure, thereby make the side face template of bridge move the mounting point of business line bridge.
10. The construction method for an adjacent business line bridge according to claim 9, wherein: the method comprises the following steps:
firstly, construction of a strip foundation:
the strip-shaped foundation is provided with 12 rows, C35 reinforced concrete is adopted,
the size of the basic structure is divided into 2 parts, the basic width of the translation area is 1.2m, the thickness is 0.8m,
the base width of the pushing in-position area is 2m, the thickness is 1m,
the total length of the foundation is 43.5m,
the replacing and filling part is wider than 1m of the concrete foundation and has a thickness not less than 50cm,
5 tie beams are arranged between the strip foundations to increase the integral stability of the foundations, the weight of the pushing support and the steel bar formwork is large, and the requirements on elevation and coordinate accuracy are high after the pushing is in place, so that the bearing capacity of the strip foundations must meet the design requirements to ensure that no settlement exists in the construction process,
the strip foundation is filled by replacing sand and broken stones, and can be constructed next step after the foundation bearing capacity test is qualified, after the strip foundation is constructed, the strip foundation is subjected to a pre-pressing test, the inelastic deformation of the strip foundation is eliminated, and after the support is pushed to be in place and concrete is poured, the beam body elevation and the coordinates meet the design requirements;
secondly, track construction:
the rail adopts a P60 tool rail, holes are drilled on a strip foundation, a sulfur anchoring spike is used, an elastic strip fastener is used for fixing the steel rail on the strip foundation,
the rail joints are connected by using the clamping plates, the seams are flush, no staggered teeth exist,
the sulfur anchoring spike is used for drawing test, after the test is qualified, the track construction can be carried out, the straightness of the track is high by the support side position assembling and pushing construction, the space and elevation of the track must be strictly controlled in the construction, all the tracks must be parallel to each other, the space error must not be larger than 1cm,
the track adopts a flat slope, the level of the top surface of the track is measured by adopting a level gauge, the level of the top surface of the track is accurately controlled, the error of two ends of the same steel rail is not more than 5mm,
therefore, the bracket is smoothly pushed and accurately butted with the 0# block after being in place;
thirdly, constructing a slideway:
the slideway beam adopts double-spliced H400 steel, in order to ensure the stress of the steel below the steel pipe column, 5 ribbed plates are arranged at each side between the upper and lower seat plates of the H steel at the position,
the sliding medium is a copper-ink alloy sliding sheet with higher hardness and smaller friction factor, and is reversely buckled on the track by using 10# channel steel and welded with H-shaped steel,
in order to ensure the stability of the copper-ink alloy sliding plate, the copper-ink alloy sliding plate is fixed in the channel steel by using a U-shaped clamping groove;
fourthly, erecting a support:
the support system adopts a steel pipe column and an I-shaped steel structure system, the steel pipe column has the diameter of 630mm and the wall thickness of 10mm,
the steel pipe columns on one side are arranged into 6 rows, 6 steel pipes with the diameter of 180 x 6mm are welded and connected among the steel pipe columns, a mold dropping sand box is arranged above the steel pipe columns, the bottom of the sand box is welded with the steel pipe columns,
the double-spliced 45A I-steel is arranged above the sand box and used as a longitudinal and transverse distribution beam, the bottom of the beam above the I-steel is of a 16I-steel truss structure, the flange plate part adopts a coil buckle type scaffold as a support, the bottom of the scaffold is directly welded on the longitudinal I-steel, the bracket overcomes the inertia when the pushing is started and stopped and the bracket distortion caused by asynchronous pushing in the pushing process, has high requirements on the integrity and the structural stability of the bracket,
the components of the support are welded by a professional welder, the support can be used after being qualified in weld seam flaw detection, the support is constructed strictly according to a scheme, a tray buckle support base is firmly welded with a support longitudinal beam, the lower portion of the support is connected with a bottom die I-steel truss, the upper portion of the support is connected with a beam portion template lacing wire into a whole, the stability in pushing is improved, before pushing of the support, the support must be accepted by a project department and a supervision unit, and after the support is qualified in acceptance, pushing construction can be carried out;
fifthly, pushing the bracket:
the pushing equipment mainly comprises a PLC synchronous pushing clamping control hydraulic pump station, an on-track heavy-load pushing machine (a jack and a rail clamping device) and a stay wire type displacement collector,
data is integrated to a control center of a hydraulic pump station, the pushing speed and the pushing displacement can be manually adjusted, after the construction of the steel bar formwork at the pushing section is finished, the support pushing construction is carried out,
one steel rail of each group of slide ways is provided with 1 set of PLC synchronous on-rail heavy load pushing and moving machine which mainly comprises a 200t rail clamping jack and a 50t pushing and moving jack,
each 2 slideways are 1 control point and 3 control points, each control point is provided with 1 displacement detection sensor with the precision of 0.1mm, the displacement detection sensors are fed back to a PLC synchronous pushing clamping control hydraulic pump station, the pushing speed and the displacement of the jack can be accurately controlled, the synchronism and the accuracy of the support pushing are ensured, the pushing synchronism is subjected to double control measures, on one hand, displacement data are collected through a stay wire type displacement sensor, the precision of the sensor is 0.1mm, the displacement data are fed back to a main control station in real time, the pushing force of the jack is adjusted, a closed control system is formed to realize displacement synchronization,
in addition, scale marks are made on the walking track, a scale pointer is installed at the front end of the slideway, a specially-assigned person is arranged to observe displacement, data collected by the sensor are rechecked, in the pushing process, the specially-assigned person is arranged to observe a support weld crater and a support stably every time one stroke is pushed, and repair welding reinforcement is immediately carried out when open welding and deformation are found;
sixthly, accurately positioning:
before construction, marking a central line of a pushing support beam on a slide way, marking a designed beam central line on a steel rail, arranging a specially-assigned person to observe the in-position condition, observing the folding condition of the center of the 0# block and the central line of the a1 block on the 0# block of the 30# pier by a measuring person, and when the central line is within 1m before folding, starting to report monitoring data to the control console backwards, wherein the monitoring data is reported every 10 cm; reporting once every 2cm within 30cm, reporting once every 5mm within 5cm, reporting once every 1mm within 2cm until the slide way foundation is in place, installing a limiting device at the position where the base of the slide way is pushed to be in place to prevent over-jacking during pushing construction,
the limiting device adopts a mode of welding a transverse support on the steel rail slideway for clamping,
seventhly, adjusting and locking in place:
measuring the position of the support template by using a total station at the positions 10m and 1m before the support is in place, finely adjusting to correct the deviation of the support body, ensuring that the support body synchronously jacks in a correct posture,
measuring the coordinates of the template support again after the support reaches the design position, correcting the template deviation through the operation of a single jack until the template deviation is accurately positioned, reinforcing the slideway foundation of the support system in-situ area after the pushing is positioned in place, wherein the reinforcing mode is that 18# double-spliced I-shaped steel is placed in the in-situ area in advance, the top of the I-shaped steel is 5mm lower than the steel rail top,
the outer side of the steel rail at the bottom of the H-shaped steel is filled with square timber and firmly wedged, and the limiting device and the H-shaped steel are welded into a whole, so that the integral stress effect is increased,
eighthly, pouring concrete:
concrete pouring of the swivel T-shaped structure is carried out in a skylight point by adopting a pump truck, concrete is poured for three times, the elevation of the beam bottom of the beam area is measured before and after each pouring and before and after tensioning, the elevation of the vertical mold of the next beam section is adjusted, linear monitoring work is well carried out, and the line type and the elevation of the beam body are ensured to meet the design requirements.
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| CN201911009669.6A CN110725209A (en) | 2019-10-23 | 2019-10-23 | Construction prop-up device and method for bridges adjacent to business lines |
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| CN201911009669.6A CN110725209A (en) | 2019-10-23 | 2019-10-23 | Construction prop-up device and method for bridges adjacent to business lines |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111676815A (en) * | 2020-05-28 | 2020-09-18 | 中铁十局集团青岛工程有限公司 | Positioning method and positioning system for steel truss girder in-place construction |
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| CN112095488A (en) * | 2020-09-24 | 2020-12-18 | 李如友 | Supporting mechanism for hoisting and splicing bridge body in bridge building construction |
| CN114134823A (en) * | 2021-10-19 | 2022-03-04 | 中铁二十五局集团第二工程有限公司 | Upper-span high-speed rail asymmetric rigid frame bridge swivel construction method |
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| CN111676815A (en) * | 2020-05-28 | 2020-09-18 | 中铁十局集团青岛工程有限公司 | Positioning method and positioning system for steel truss girder in-place construction |
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| CN111676815B (en) * | 2020-05-28 | 2021-11-23 | 山东潍莱高速铁路有限公司 | Positioning method and positioning system for steel truss girder in-place construction |
| CN111749134B (en) * | 2020-05-28 | 2022-03-15 | 中建隧道建设有限公司 | Auxiliary support construction device and construction method for beam-arch combined continuous rigid frame bridge |
| CN112095488A (en) * | 2020-09-24 | 2020-12-18 | 李如友 | Supporting mechanism for hoisting and splicing bridge body in bridge building construction |
| CN114134823A (en) * | 2021-10-19 | 2022-03-04 | 中铁二十五局集团第二工程有限公司 | Upper-span high-speed rail asymmetric rigid frame bridge swivel construction method |
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