CN117051705A - Trestle construction method for water area - Google Patents
Trestle construction method for water area Download PDFInfo
- Publication number
- CN117051705A CN117051705A CN202310983694.4A CN202310983694A CN117051705A CN 117051705 A CN117051705 A CN 117051705A CN 202310983694 A CN202310983694 A CN 202310983694A CN 117051705 A CN117051705 A CN 117051705A
- Authority
- CN
- China
- Prior art keywords
- panel
- bailey
- trestle
- bailey beam
- steel pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000010276 construction Methods 0.000 title claims abstract description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 238000000034 method Methods 0.000 claims abstract description 31
- 238000003466 welding Methods 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims description 42
- 238000007906 compression Methods 0.000 claims description 42
- 239000000463 material Substances 0.000 claims description 5
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 19
- 238000012937 correction Methods 0.000 description 18
- 238000001125 extrusion Methods 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention relates to a trestle construction method for a water area, which belongs to the technical field of trestle construction and comprises the following steps: the method comprises the following steps: step one: positioning a steel pipe pile required by the next bridge and driving the steel pipe pile into a target position; step two: connecting the steel pipe piles in the next cross trestle by using a parallel pipe; step three: classifying the prefabricated members of the Bailey beams and the bridge deck panels for the next span into a group, simulating installation, defining a plurality of welding positions of the lower surfaces of the panels of the same group according to the simulated installation, and respectively welding a plurality of limiting strips to the welding positions; step four: sequentially installing a plurality of spandrel girders and Bailey girders onto the steel pipe piles, and measuring the slope of the Bailey girders; step five: hoisting a panel which is in the same group as the Bailey beam above the Bailey beam, matching the slope of the panel with the slope of the Bailey beam in the hoisting process, and embedding the panel with the adjusted slope above the Bailey beam; it guarantees the efficiency of construction and simultaneously with the fixed effect of panel.
Description
Technical Field
The invention belongs to the technical field of trestle construction, and particularly relates to a trestle construction method for a water area.
Background
Trestle is an auxiliary channel that erects to the place that constructor and equipment can't reach easily in the work progress, generally includes steel-pipe pile, spandrel girder, bailey girder and bridge deck panel, and wherein, the steel-pipe pile is as the trestle pier, spandrel girder and bailey girder are used for on average conveying the steel-pipe pile with trestle bridge deck load, and the bridge deck panel is used for bearing constructor and equipment.
After the steel pipe pile, the spandrel girder and the bailey girder are erected, a panel is required to be paved, in order to prevent the panel from sliding relatively with the bailey girder under the influence of the reaction force of personnel and equipment when moving, when the sliding momentum is large, the impact damage is possibly caused to the structure below the panel, and in order to avoid the problem, the common construction method, such as the welding device for the trestle panel and the scheme disclosed by the welding method thereof disclosed by CN115070322A, is to weld a limit bar matched with the bailey girder at the bottom of the panel, and to enable the panel to be matched with the limit bar to be embedded on the bailey girder after the welding is finished, so as to fix the panel on the bailey girder and prevent the panel from sliding in the direction of the limit bar; in order to prevent the panel from sliding to the greatest extent, the spacing strips are required to be tightly attached to the corresponding bailey beams, however, in actual construction, due to the influence of factors such as the actual processing technology and thermal expansion and contraction of the bailey beams, the size of each section of bailey beams in the direction of the spacing strips is different, when the spacing strips of all panels are welded at the same spacing in actual construction, the situation that the spacing strips are not matched with the size of the corresponding bailey beams is likely to happen, meanwhile, in particular in water construction, the levelness of the tops of the steel pipe piles is slightly changed under the influence of water flow impact after the steel pipe piles are driven, so that the bailey beams are inclined.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a trestle construction method for a water area, which has the characteristics of considering construction efficiency and panel fixing effect.
The aim of the invention can be achieved by the following technical scheme:
a trestle construction method for a water area comprises the following steps:
step one: positioning a steel pipe pile required by the next bridge and driving the steel pipe pile into a target position;
step two: connecting the steel pipe piles in the next cross trestle by using a parallel pipe;
step three: classifying the prefabricated members of the Bailey beams and the bridge deck panels for the next span into a group, simulating installation, marking the welding positions of the limiting strips of the panels of the same group according to the simulation installation result, and welding the limiting strips to the marking positions;
step four: sequentially installing a plurality of spandrel girders and Bailey girders onto the steel pipe piles, and measuring the slope of the Bailey girders after the installation is completed;
step five: and hoisting the panel which is in the same group as the Bailey beam to the position above the Bailey beam, enabling the slope of the panel to be matched with the slope of the Bailey beam in the hoisting process, embedding the panel with the adjusted slope and the limit strip to the position above the Bailey beam, and arranging a first anti-slip pad between the panel and the Bailey beam.
As a preferred technical scheme of the invention, after the spandrel girder is installed, a plurality of positioning devices are installed at two ends of the upper surface of the spandrel girder, any one positioning device comprises a shell, a rod body and a spring, wherein the rod body and the shell are in sliding fit, the axial direction of the rod body is perpendicular to the spandrel girder, two ends of the spring are respectively connected with the bottom of the rod body and the bottom of the inner surface of the shell, a plurality of positioning grooves are formed in the top of the rod body, which is matched with a plurality of positioning devices, of the panel bottom, and the fifth step further comprises: in the hoisting process, a plurality of positioning grooves of the panel are matched with the tops of a plurality of positioning devices one by one.
As a preferable technical scheme of the invention, the cross-sectional area of the top of the rod body is gradually increased from top to bottom.
As a preferable technical scheme of the invention, the positioning devices are respectively arranged at two ends of the spandrel girder of the next span.
As a preferable technical scheme of the invention, a second anti-skid pad is arranged between the limiting strip and the side surface of the Bailey beam, the first anti-skid pad and the second anti-skid pad are integrally connected, the limiting strip is abutted against the side surface of the second anti-skid pad, and a plurality of welding positions of the panel are defined according to the total size of the Bailey beam and the two second anti-skid pads.
As a preferable technical scheme of the invention, the first anti-slip pad and the second anti-slip pad are both made of silicon rubber materials.
As a preferable technical scheme of the invention, the outer surfaces of the first anti-skid pad and the second anti-skid pad are respectively provided with an anti-skid groove.
As a preferable technical scheme of the invention, the method further comprises the step six of: and calculating the compression distance of the second anti-slip pad according to the equipment output on the panel and the elastic coefficient of the second anti-slip pad, and embedding the compression plate with the same thickness and compression distance between the limit strip and the second anti-slip pad.
As a preferable technical scheme of the invention, anti-skid grooves are formed on two sides of the compression plate.
As a preferable technical scheme of the invention, the Bailey beam is composed of two Bailey sheet groups, the two Bailey sheet groups are transversely connected through two groups of channel steel, and the two groups of channel steel scissors are arranged in a cross mode.
The beneficial effects of the invention are as follows:
(1) The method has the advantages that the positions of the same group of panels for welding limit bars are defined according to the actual sizes of the banks before the banks and the panels are installed, so that rework caused by overlarge or undersize of the actual sizes of the banks relative to the spacing bars is avoided, meanwhile, the panels in each span and the banks can be tightly matched to avoid the panels to drive the spacing bars to strike the banks or bridge piers, and the fixing effect of the panels on the banks is ensured, and meanwhile, the construction efficiency is also considered;
(2) By measuring the slope of the bailey beam after the bailey beam is installed and obtaining the correction direction, and tilting the panel and moving along the correction direction in the panel hoisting process, the tilting degree of the bailey beam can be known in advance before the panel is installed, so that the situation that the panel and the limiting strip tightly attached to the horizontal bailey beam cannot be directly and vertically put down and are embedded with the bailey beam when the bridge pier built in water tilts slightly and the bailey beam tilts is avoided;
(3) By arranging the positioning device and enabling the panel to be matched with the positioning device to be provided with the positioning groove, the panel does not need to move horizontally and vertically for many times through the crane when approaching the bailey beam, and the movement along the correction direction can be completed only by the positioning device, so that the fixing effect of the panel on the bailey beam is ensured, and meanwhile, the construction efficiency is better considered under various conditions;
(4) The top of the rod body of the positioning device is conical, so that the top of the rod body can easily extend into the positioning groove corresponding to the panel in the panel hoisting process;
through setting up the compression board between second slipmat 43 and spacing 51 to calculate the compression distance of second slipmat 43 according to the equipment output on panel 5 and the elastic coefficient of second slipmat 43, with the compression board embedding spacing that thickness and compression distance are unanimous between second slipmat 43, can make the selection between the fixed effect of panel 5 according to actual construction condition between efficiency of construction, guaranteed panel 5 and compromise efficiency of construction when fixing the effect on the bailey roof beam.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic side view of a single-span trestle of the present invention after positioning devices are provided;
FIG. 2 is an enlarged view of FIG. 1 at A;
FIG. 3 is a schematic elevational view of a single-span trestle of the present invention;
FIG. 4 is a schematic cross-sectional view of a positioning device according to the present invention;
fig. 5 is a schematic structural view of the compression plate of the present invention.
Description of main reference numerals:
in the figure: 1. a steel pipe pile; 2. a parallel connection pipe; 3. a spandrel girder; 31. a positioning device; 311. a housing; 312. a rod body; 313. a spring; 4. bailey beam; 41. a set of bailey patches; 42. a first cleat; 43. a second cleat; 5. a panel; 51. a limit bar; 6. and compressing the plate.
Detailed Description
In order to further describe the technical means and effects adopted by the invention for achieving the preset aim, the following detailed description is given below of the specific implementation, structure, characteristics and effects according to the invention with reference to the attached drawings and the preferred embodiment.
Referring to fig. 1-5, a trestle construction method for a water area includes the following steps:
firstly, a first step is executed, a plurality of steel pipe piles 1 serving as bridge piers required by a next bridge trestle are positioned and driven into a target position, in the construction process of the bridge trestle, generally, the bridge trestle is carried out in units of a bridge, when the construction of the previous bridge is completed and the construction of the next bridge trestle is entered, firstly, the steel pipe piles 1 serving as the bridge pier are positioned at a position where piling is needed, then the bridge trestle is driven into a riverbed in a pile sinking or piling mode, after the plurality of steel pipe piles 1 are driven into the riverbed, the bridge trestle of the next bridge trestle is formed, each bridge trestle is provided with two or three bridge piers according to the span, in this embodiment, each bridge trestle is formed by two steel pipe piles 1, the projection of the two steel pipe piles 1 in the same bridge trestle on the reference plane is overlapped, and after the steel pipe piles 1 serving as the bridge trestle are erected, structural support is provided for construction steps and structures in subsequent steps.
After the first step is completed, the second step is executed, the adjacent steel pipe piles 1 of the next cross trestle are connected in pairs through parallel pipes 2, in construction of the trestle in water, the geological condition of the riverbed is unfavorable for stable erection of the steel pipe piles 1 after the steel pipe piles 1 are driven into the riverbed, meanwhile, the trestle is usually built at the upstream of a main bridge, so that the steel pipe piles 1 bear large water flow impact, at the moment, the stability of a plurality of independent single steel pipe piles 1 which do not form a pile group is poor, two steel pipe piles 1 belonging to the same bridge pier are required to be connected into a whole, two ends of the parallel pipes 2 are connected with the two steel pipe piles 1 in the same bridge pier through welding, the parallel pipes 2 are parallel to the ground after welding, the steel pipe piles 1 in each trestle bridge pier form the pile group, and when one steel pipe pile 1 in one bridge pier is impacted, the impact force is borne by all the steel pipe piles 1 in the same bridge pier, so that the stability of the trestle bridge is improved.
Because the landing stage is used as an auxiliary channel for constructors and equipment to walk, after the bridge piers are welded, the bridge deck forming the channel needs to be paved, and because heavier equipment moves on the bridge deck, the reactive force of the heavier equipment can lead to the bridge deck to move, when the moving direction is perpendicular to the extending direction of the bridge, the panel 5 is easy to slide into water, the accident risk is larger, in order to prevent the bridge deck from moving under the action of the equipment, step three is executed after step two is completed, the bottom of the panel 5 is welded with a limit strip 51, in the embodiment, each span corresponds to one bridge deck panel 5, the structural body of the bridge deck panel 5 is formed by concrete, the limit strip 51 is formed by 10# channel steel, the channel steel is welded at the bottom of the panel 5, meanwhile, the bridge deck load needs to be averagely shared to the steel pipe pile 1, the panel 5 is usually supported by the landing stage supporting structure, the Bailey beam 4 and the spandrel girder 3 are paved on the steel pipe pile 1, so the limit strip 51 needs to be matched with the Bailey beam 4, when a gap exists between the limit strip 51 and the Bailey beam 4, a moving space is reserved for the panel 5, because the concrete panel 5 has larger self mass and larger momentum during movement, when the panel 5 drives the limit strip 51 to move to fill the gap and collide with the Bailey beam 4, the momentum of the panel 5 can be transferred to the Bailey beam 4 and the bridge pier, the Bailey beam 4 or the bridge pier can be inclined or displaced with probability to influence the safety of the bridge, the limit strip 51 needs to be tightly matched with the Bailey beam 4, therefore, the arrangement direction of the limit strip 51 is parallel to the extending direction of the bridge, the distance between the two limit strips 51 is equal to the dimension of the Bailey beam 4 perpendicular to the extending direction of the bridge, after the panel 5 is arranged, the side face of the Bailey beam 4 parallel to the extending direction of the bridge is attached, when the equipment on the panel 5 moves to make the panel 5 have a tendency to displace perpendicular to the extending direction of the bridge, the side of the bailey beam 4 opposite to the sliding direction and the limit bar 51 are mutually pressed against each other, preventing further sliding of the panel 5.
In order to complete the installation of the trestle supporting structure on the trestle, step three is followed by a step four of sequentially installing the spandrel girder 3 and the bailey girder 4 on the steel pipe pile 1 of the next span, in this embodiment, after the steel pipe pile 1 is inserted and driven, firstly, the top of the steel pipe pile 1 is cut flat, notch is cut on two sides of the top of the steel pipe pile 1 perpendicular to the extending direction of the trestle according to the size of the spandrel girder 3, then the spandrel girder 3 is welded in the corresponding notch, the two steel pipes in the same pier are connected by the spandrel girder 3 after the spandrel girder 3 is welded, the positions of the bailey girder 4 are carried on the tops of the two piers in the next span, at this time, the bailey beams 4 are paved on the top of the spandrel girder 3, each spandrel bailey beam 4 is composed of two bailey sheet groups 41, each bailey sheet group 41 is composed of a plurality of bailey sheets connected through a flower window, the whole bailey sheet group 41 is cuboid, the long sides of the bailey sheet group 41 are parallel to the extending direction of the trestle, in order to save the transportation space in practical construction, the bailey beams 4 are assembled by the bailey sheets and the flower window on site in the transportation and supporting construction site, meanwhile, four limit strips 51 are arranged on the lower surface of the panel 5 in a matched mode, and the four limit strips 51 are respectively abutted with the four sides of the two bailey sheet groups 41 which are parallel to the extending direction of the bridge.
In order to complete the arrangement of the panel 5 on the bailey beam 4, step five is executed after step four is completed, the panel 5 is hoisted above the bailey beam 4, in practical construction, the panel 5 is usually placed on the bailey beam 4 from top to bottom in a hoisting manner, at this time, the bailey beam 4 stretches into a groove formed by the limiting strip 51 and the lower surface of the panel 5, so that the panel 5 and the bailey beam 4 are mutually embedded, and the installation and fixation of the panel 5 on the bailey beam 4 are completed.
In the above process, since the bailey pieces and the flower windows forming the bailey beam 4 are affected by factors such as processing technology and expansion and contraction, and the like, the mounting technology in the process of mounting the bailey beam 4 also affects the size of the bailey beam 4, so that the size of each span of the bailey beam 4 in the direction perpendicular to the bridge extension direction is different, when the spacing strips 51 of all the panels 5 are welded at the same interval in actual construction, there is a probability that the spacing between the spacing strips 51 is not matched with the size of the corresponding bailey beam 4 perpendicular to the bridge extension direction, if the spacing between the spacing strips is too large or too small, and an operator can only find the situation that the next span of the panels 5 and the bailey beam 4 are not matched when the panels 5 and the spacing strips 51 are welded and mounted on the bailey beam 4, at this moment, the rework needs to lift the panels 5, re-measure the bailey beam 4, detach the spacing strips 51 and re-weld again, thereby affecting the construction efficiency, and the construction period is prolonged, and in order to avoid the occurrence of the situation, the following steps are further included before welding the spacing strips 51: after the bailey beam 4 is assembled, the pre-members of the bailey beam 4 and the bridge deck panel 5 for the next span are classified into the same group, the panel 5 without the limit bars 51 is hoisted to the bailey beam 4 to simulate the installation on a trestle, after the simulated installation, four reference lines are marked according to the contact positions of the four edges of the upper surface of the bailey beam 4 parallel to the extending direction of the bridge and the lower surface of the panel 5, then the bailey beam 4 is removed and prepared for being installed on the spandrel beam 3, an operator aligns the edges of the upper surfaces of the four limit bars 51, which are close to one side of the bailey beam 4, with the four reference lines respectively to weld, and in practical operation, the welding efficiency is higher from top to bottom, therefore, the panel 5 can be turned over under the assistance of the crane, after the contact surface of the panel 5 and the bailey beam 4 faces upwards, an operator can align and weld the limit strips 51, the positions of the limit strips 51 for welding the same group of panels 5 are marked according to the actual sizes of the bailey beams 4 after the assembly and the groups of the panels 4 before the assembly, reworking caused by overlarge or undersize of the actual sizes of the bailey beams 4 relative to the spacing strips 51 is avoided, and meanwhile, the panel 5 and the bailey beam 4 in each span can be tightly matched to avoid the panel 5 to drive the spacing strips 51 to strike the bailey beam 4 or a pier, so that the construction efficiency is guaranteed while the fixing effect of the panel 5 on the bailey beam 4 is also considered.
In the above process, after the bailey beam 4 is installed, since the bridge frame is disposed in the water, the bridge pier and the spandrel girder 3 thereon have a certain probability of tilting, when the bridge pier tilts, the bailey beam 4 on the spandrel girder 3 tilts accordingly, according to the geometric sense, when the bailey beam 4 tilts in the plane perpendicular to the ground, the projection size of the bailey beam 4 in the vertical direction is larger, at this time, the limit strip 51 closely attached to the bailey beam 4 in the horizontal state cannot be directly vertically lowered and attached to the bailey beam 4, at least one limit strip 51 can be propped against the edge of the bailey beam 4, the jogging cannot be completed, and once the above problem needs to be re-lifted, the panel 5 and the position are adjusted until the panel 5 and the limit strip 51 can be successfully jogged with the bailey beam 4, the construction efficiency is affected, the construction period is prolonged, and in order to avoid such a situation, the fourth step further comprises the following steps: measuring the slope of the bailey beam 4 after the next bailey beam 4 is installed and recording the slope data, and in the fifth step, the following steps are further included: in the hoisting process, the inclination degree of the panel 5 is matched with the inclination degree of the bailey beam 4, the panel 5 with the inclination degree adjusted and the limit strips 51 are embedded above the bailey beam 4, the inclination degree of the panel 5 in hoisting can be adjusted by conventional means such as changing the length of a sling, after the adjustment is finished, the direction perpendicular to the top surface of the bailey beam 4 is taken as the correction direction, the distance between the two limit strips 51 in the correction direction is equal to the size of the bailey beam 4, at the moment, an operator controls the crane to enable the panel 5 to move in the correction direction in a mode that the panel 5 moves in the hoisting in the correction direction in a plurality of shorter transverse and vertical movement fitting modes, the bailey beam 4 is embedded with the inclined bailey beam 4 in the correction direction, and the panel 5 tightly matched with the bailey beam 4 is quickly installed on the inclined bailey beam 4, so that the fixing effect of the panel 5 on the bailey beam 4 is ensured, and the construction efficiency is considered under various conditions.
In practical use, besides avoiding the movement of the panel 5 in the direction perpendicular to the extending direction of the bridge, the movement in the direction parallel to the extending direction is avoided, and for this purpose, before the panel 5 in the same group as the bailey beam 4 is hoisted above the bailey beam 4, the fifth step further comprises the following steps: the first anti-slip pad 42 is arranged at the joint of the top surface of the bailey beam 4 and the panel 5, the first anti-slip pad 42 is a rubber pad with the thickness of 15mm, in a preferred embodiment, the first anti-slip pad 42 is fixedly connected with the top of the bailey beam 4, when the panel 5 has a sliding trend, compared with the bailey beam 4 made of smoother steel material, when the panel is contacted with the first anti-slip pad 42, the first anti-slip pad 42 formed by the rubber pad can provide larger friction force for the panel 5 to counteract the sliding trend, and through the arrangement of the first anti-slip pad 42, the moving trend of the panel 5 in any direction including the direction parallel to the extending direction of a bridge can be reduced, and the fixing effect of the panel 5 on the bailey beam 4 is further enhanced.
In the fourth step, the panel 5 needs to be lifted to the corresponding bailey beam 4 along the correction direction, and in the actual operation, the crane needs to move and install the panel 5 along the oblique correction direction by making the panel 5 move horizontally and vertically for a plurality of times, so that the operation is troublesome, the construction efficiency is low, and therefore, the fourth step further comprises the following steps: after measuring the slope of the bailey beam 4, installing a positioning device 31 on a spandrel girder 3 positioned at the bottom of the bailey beam 4, wherein the positioning device 31 comprises a shell 311, a rod body 312 and a spring 313, the rod body 312 and the spring 313 are arranged in an inner cavity of the shell 311, the outer surface of the rod body 312 is in sliding fit with the inner surface of the shell 311, the axial direction of the rod body 312 is perpendicular to the spandrel girder 3, two ends of the spring 313 are respectively connected with the bottom of the rod body 312 and the bottom of the inner surface of the inner body, simultaneously, a positioning groove is formed in the bottom of a panel 5, which is matched with the top of the rod body 312, and simultaneously, the fifth step further comprises the following steps: in the lifting process, the positioning groove of the panel 5 is matched with the top of the positioning device 31, in the embodiment, the top surface of the shell 311 is provided with a cylindrical inner cavity, the rod body 312 is cylindrical, the inner wall of the side inner cavity of the rod body 312 is in sliding fit, at the moment, the rod body 312 only has the degree of freedom in the axial direction of the cavity, and the slope of the beam depends on the slope of the spandrel girder 3, so that the rod body 312 only has the slope in the correction direction, meanwhile, the two ends of the spring 313 are respectively connected with the bottom of the inner cavity and the bottom of the rod body 312, when the positioning device 31 is in a natural state, the top of the rod body 312 is Gao Yubei at the top of the beam 4, when the lifting process, the crane lowers the panel 5 to enable the top of the rod body 312 of the positioning device 31 to be embedded into the positioning groove at the bottom of the panel 5, the panel 5 overcomes the elasticity of the spring 313 to slide downwards in the correction direction under the dead weight, meanwhile, when the panel 5 has the trend of deviating from the correction direction in the lowering process, the top of the rod body 312 is pressed against the side of the positioning groove, the panel 5 is prevented from deviating from the correction direction, and the positioning device 31 is matched with the positioning device 31, so that the panel 5 is respectively connected with the bottom of the inner cavity, the top of the positioning device 31, when the panel 5 is close to the beam 4, the beam 4 is positioned in the natural state, and the vertical direction is moved by the crane, and the panel 5 is only moves in the direction along the correction direction, and the direction of the correction direction of the plane 4, and the plane is better construction efficiency is guaranteed, and the effect of the vibration of the panel is well and can be guaranteed.
In the process of installing the auxiliary panel 5 by the positioning device 31, when the positioning device 31 is unevenly arranged, part of positions in the panel 5 are subjected to the reaction force given to the panel 5 when the positioning device 31 is compressed, so that the panel 5 rotates in the lifting and lowering process, the positioning device 31 can only prevent the panel 5 from deviating in the vertical direction and cannot prevent the panel 5 from rotating around the positioning groove, when the panel 5 rotates, the possibility is high, so that one ends of the panel 5 and the limiting strip 51 far away from the rotation center are larger and cannot be matched and embedded with the corresponding bailey beam 4 in part, in order to avoid the occurrence of the situation, a plurality of positioning devices 31 are arranged at two ends of the spandrel beam 3 respectively, in this embodiment, because each span is provided with two bridge piers and one panel 5, the two ends of the spandrel beam 3 of the two bridge piers share four mounting points, the four mounting points can form four bridge piers on the panel 5, and each span is arranged at two ends of the span, and meanwhile, the panel 5 is generally rectangular in shape, and the four rectangular panels are respectively positioned at the positions near the four bridge points of the four bridge pieces of the panel 5, and can be repeatedly used for positioning the panel 5 in the vertical direction, the two bridge pieces can be repeatedly used for positioning the positioning devices 31, and the positioning devices can be positioned at the positions of the two ends of the spandrel beam 3 in the vertical direction, and the other positions of the spandrel beam 31 can be repeatedly used for fixing the position and can be positioned at the positions and fixed by the positions of the opposite positions of the panel 5 in the opposite positions to the position 31; by arranging a plurality of positioning devices 31 at both ends of the spandrel girder 3, the fixing effect of the positioning devices 31 to the panel 5 is enhanced.
In the process of fixing the panel 5 by the positioning device 31, because the operator is required to operate the crane to match the four positioning slots of the panel 5 with the positioning device 31, the operation difficulty is high, the construction efficiency is affected to a certain extent, in order to avoid the occurrence of the situation, the cross-sectional area of the rod 312 is gradually increased from top to bottom, in this embodiment, the cross-sectional area of the top of the rod 312 is gradually increased from top to bottom, meanwhile, the top of the rod 312 is cylindrical, the top of the rod 312 is conical with the pointed tip upwards, the positioning slot of the panel 5 corresponding to the rod 312 is a conical slot with the shape consistent with the shape of the top of the rod 312, compared with the smooth top, the rod 312 with the sharp head still can extend into the bottom of the conical positioning slot with the relatively large head area when the axial line of the rod 312 is slightly deviated from the original position, the rod 312 top of the original position can be corrected by abutting the positioning slot wall with the crane, the conical rod 312 is continuously filled into the positioning slot until the whole is filled, the panel 5 and the positioning device is positioned at the top of the positioning device, and even if the rod 312 is still axially deviated from the original position by the rod 312, the axial line of the rod 312 is still in the original position, and the construction efficiency is improved.
In order to further avoid the movement parallel to the extending direction, a second anti-slip pad 43 is arranged between the limit strip 51 and the side surface of the bailey beam 4, the second anti-slip pad 43 extends upwards and is integrally connected with the side surface of the first anti-slip pad 42, the second anti-slip pad 43 is also a rubber pad, the first anti-slip pad 42 and the second anti-slip pad 43 form a strip-shaped structure with an L-shaped cross section and are arranged at four edges on the upper sides of the two bailey sheet groups 41, meanwhile, when the welding positions are marked after the grouping simulation, four reference lines are marked at the contact positions of the lower surface of the panel 5 according to the edges of the four second anti-slip pads 43, at the moment, the limit strip 51 is mutually attached to the inner surface of the second anti-slip pad 43, the first anti-slip pad 42 and the second anti-slip pad 43 are simultaneously connected with the lower surface of the panel 5 and the inner surface of the limit strip 51, and compared with the fact that the first anti-slip pad 42 is only arranged, the contact areas of the two anti-slip pads with the panel 5 and the limit strip 51 are larger, when the panel 5 slides longitudinally, a larger reaction force is provided when the panel 5 slides longitudinally, the effect of fixing the bailey beam 4 is further enhanced.
In order to prevent structural damage of the first and second anti-slip pads 42 and 43 from permanent deformation under long-term extrusion, the first and second anti-slip pads 42 and 43 are each composed of a silicone rubber material having a higher elastic modulus and less likely to be permanently deformed when subjected to a large force than the rest of the rubber.
In order to further strengthen the fixing effect of the panel 5 on the bailey beam 4, the outer surfaces of the first anti-slip pad 42 and the second anti-slip pad 43 are provided with anti-slip grooves, and by arranging the anti-slip grooves, a larger reaction force can be provided when the panel 5 has a longitudinal sliding trend, so that the fixing effect is enhanced.
According to the above steps and structure, in practical use, since the second anti-slip pad 43 is made of rubber and has a certain elasticity, the panel 5 has a probability of extruding the second anti-slip pad 43 to move perpendicular to the extending direction of the bridge under the action of the device on the panel 5, so that the panel 5 is unstable, and in order to avoid occurrence of the measurement condition, the method further comprises the following steps: according to the device output on the panel 5 and the elastic coefficient of the second anti-slip pad 43, the compression distance of the second anti-slip pad 43 is calculated, the compression plate 6 with the same thickness and compression distance is embedded between the limit bar 51 and the second anti-slip pad 43, the compression plate 6 is used for compressing the second anti-slip pad 43 to the upper deformation limit on the premise of not damaging the second anti-slip pad 43, so that the deformation space of the second anti-slip pad 43 is small while the anti-slip effect is achieved, the stroke that the panel 5 drives the limit bar 51 to squeeze the second anti-slip pad 43 to move is reduced, meanwhile, the compressed second anti-slip pad 43 needs larger external force to deform further, the squeezed second anti-slip pad 43 has a tendency of expanding, the limit bar 51 is squeezed, the panel 5 and the limit bar 51 are in interference fit with the second anti-slip pad 43, and the degree that the panel 5 drives the second anti-slip pad 43 to squeeze is further reduced;
preferably, in order to facilitate the embedding of the compression plate 6, the upper portion of the compression plate 6 is in a wedge structure, when in use, an operator approaches and aligns one end of the wedge structure of the compression plate 6 between the second anti-slip pad 43 and the corresponding limit strip 51, and then plugs the compression plate 6 to complete the compression of the compression plate 6 on the second anti-slip pad 43;
meanwhile, in the use process after the bridge construction is finished, the types of equipment running on the bridge are different, the reactive force of the equipment running on the bridge deck panel 5 is different, so that the extrusion acting force of the panel 5 on the second anti-slip pad 43 is different, the required compression scale is different, meanwhile, the second anti-slip pad 43 is made of materials with different elastic coefficients, the required compression scale is also influenced, if the reactive force of the equipment on the panel 5 is smaller, when the elastic coefficient of the second anti-slip pad 43 is larger, only the second anti-slip pad 43 needs to be extruded less, the second anti-slip pad 43 can not be deformed further due to the further extrusion action of the panel 5, and conversely, when the reactive force of the equipment running on the panel 5 is larger, the elastic coefficient of the second anti-slip pad 43 needs to be extruded more, the second anti-slip pad 43 cannot deform after extrusion, and meanwhile, the compression plate 6 with thicker thickness is not easy to be embedded, and when the thickness of the plate 6 exceeds the required compression requirement, the practical compression range exceeds the required compression range of the second anti-slip pad 43, and the practical compression range is calculated, and the distance between the compression range of the second anti-slip pad 43 and the practical anti-slip pad 43 is also calculated according to the practical compression range of the second anti-slip pad 43; by calculating the compression distance of the second anti-slip pad 43 according to the equipment output on the panel 5 and the elastic coefficient of the second anti-slip pad 43, the compression plate 6 with the same thickness and compression distance is embedded between the limit strip 51 and the second anti-slip pad 43, and the selection between the construction efficiency and the fixing effect of the panel 5 can be made according to the actual construction condition, so that the fixing effect of the panel 5 on the bailey beam 4 is ensured, and meanwhile, the construction efficiency is considered.
At the same time, in order to prevent the compression plate 6 from weakening the anti-slip function of the second anti-slip pad 43, anti-slip grooves are formed on both side surfaces of the compression plate 6, and when the panel 5 is longitudinally slid, the second anti-slip pad 43 provides a reaction force to the compression plate 6 to fix, and the compression plate 6 provides a reaction force to the limit bar 51 to fix
In order to further enhance the structural stability of the trestle, the two bailey pieces 41 forming the bailey beam 4 are transversely connected through two groups of channel steel, the two groups of channel steel scissors are arranged in a crossing manner, and at the moment, the two bailey pieces 41 positioned on the spandrel beam 3 form an integral structure, so that the structural stability of the trestle is enhanced.
The working principle and the using flow of the invention are as follows: firstly, positioning a steel pipe pile 1 required by a trestle to be constructed next, driving the steel pipe pile 1 into a target position, and then connecting the steel pipe piles 1 belonging to the same pier in a parallel pipe 2 welding mode to form a pile group, so as to provide structural support for subsequent construction;
dividing a construction site into a group by using the bailey beam 4 and the bridge deck panel 5 of the next bridge, respectively arranging a first anti-skid pad 42 and a second anti-skid pad 43 on the total four top surfaces of two bailey piece groups 41 forming the bailey beam 4, measuring and calculating the optimal extrusion scale of the second anti-skid pad 43, compressing the four second anti-skid pads 43 to the optimal extrusion scale through a clamp, preassembling the panel 5 and the bailey beam 4 belonging to the same group, after preassembling, marking four reference lines on the lower surface of the panel 5 according to the joint between the extruded edge positions of the four second anti-skid pads 43 and the lower surface of the panel 5, and then respectively aligning the edges of the upper surfaces of the four limiting strips 51, which are close to one side of the bailey beam 4, with the four reference lines by an operator to weld the limiting strips 51 and the panel 5;
then, an operator digs a notch in the top of the steel pipe pile 1 of the same pier, then welds the spandrel girder 3 in the corresponding notch, the welded spandrel girder 3 connects two steel pipes in the same pier, and then the bailey girder 4 is installed at the top end of the spandrel girder 3;
after the bailey beam 4 is installed, an operator measures the slope of the bailey beam 4 and records slope data, the direction perpendicular to the top surface of the bailey beam 4 is set as a correction direction, four positioning devices 31 are installed at two ends of each of the two spandrel beams 3, then a panel 5 is hoisted, the inclination degree of the panel 5 is matched with the slope of the bailey beam 4 in the hoisting process, after the panel 5 is lowered by a crane, the top ends of rod bodies 312 of a plurality of positioning devices 31 are embedded into corresponding positioning grooves at the bottom of the panel 5, the rod bodies 312 slide downwards along the correction direction under the action of dead weight by the panel 5 against the elasticity of springs 313, and the panel 5 with the adjusted slope is embedded above the bailey beam 4 by limiting strips 51;
after the panel 5 is installed, an operator calculates the compression distance of the second anti-slip pad 43 according to the equipment output on the panel 5 and the elastic coefficient of the second anti-slip pad 43, and embeds the compression plate 6 with the same thickness and the compression distance between the limit strip 51 and the second anti-slip pad 43, so as to complete the further fixation of the panel 5 on the bailey beam 4 and the interference fit of the limit strip 51 and the bailey beam 4.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (10)
1. A trestle construction method for a water area is characterized by comprising the following steps: the method comprises the following steps:
step one: positioning a steel pipe pile required by the next bridge and driving the steel pipe pile into a target position;
step two: connecting the steel pipe piles in the next cross trestle by using a parallel pipe;
step three: classifying the prefabricated members of the Bailey beams and the bridge deck panels for the next span into a group, simulating installation, marking the welding positions of the limiting strips of the panels of the same group according to the simulation installation result, and welding the limiting strips to the marking positions;
step four: sequentially installing a plurality of spandrel girders and Bailey girders onto the steel pipe piles, and measuring the slope of the Bailey girders after the installation is completed;
step five: and hoisting the panel which is in the same group as the Bailey beam to the position above the Bailey beam, enabling the slope of the panel to be matched with the slope of the Bailey beam in the hoisting process, embedding the panel with the adjusted slope and the limit strip to the position above the Bailey beam, and arranging a first anti-slip pad between the panel and the Bailey beam.
2. The trestle construction method for a water area according to claim 1, characterized in that: the fourth step further comprises: after the spandrel girder is installed, a plurality of positioner are installed at spandrel girder upper surface both ends, arbitrary positioner includes the casing and sets up in the body of rod and the spring of casing inner chamber, the body of rod and casing sliding fit just the axial perpendicular to spandrel girder of the body of rod, the spring both ends are connected with body of rod bottom and casing internal surface bottom respectively, open at the body of rod top of a plurality of positioner of panel bottom cooperation has a plurality of constant head tanks, step five still includes: in the hoisting process, a plurality of positioning grooves of the panel are matched with the tops of a plurality of positioning devices one by one.
3. A trestle construction method for a water area according to claim 2, characterized in that: the cross-sectional area of the rod body gradually increases from top to bottom.
4. A trestle construction method for a water area according to claim 2, characterized in that: the positioning devices are respectively arranged at two ends of the spandrel girder of the next span.
5. The trestle construction method for a water area according to claim 1, characterized in that: the anti-skid device is characterized in that a second anti-skid pad is arranged between the limiting strip and the side face of the Bailey beam, the first anti-skid pad and the second anti-skid pad are integrally connected, the limiting strip is abutted against the side face of the second anti-skid pad, and a plurality of welding positions of the panel are defined according to the total size of the Bailey beam and the two second anti-skid pads.
6. The method for constructing a trestle for a water area according to claim 4, wherein: the first and second cleat are each composed of a silicone rubber material.
7. The method for constructing a trestle for a water area according to claim 4, wherein: anti-skid grooves are formed in the outer surfaces of the first anti-skid pad and the second anti-skid pad.
8. The method for constructing a trestle for a water area according to claim 4, wherein: the method further comprises the step six of: and calculating the compression distance of the second anti-slip pad according to the equipment output on the panel and the elastic coefficient of the second anti-slip pad, and embedding the compression plate with the same thickness and compression distance between the limit strip and the second anti-slip pad.
9. The method for constructing a trestle for a water area according to claim 8, wherein: anti-skid grooves are formed in two sides of the compression plate.
10. A trestle construction method for a water area according to claim 9, characterized in that: the Bailey beam is composed of two Bailey sheet groups, the two Bailey sheet groups are transversely connected through two groups of channel steel, and the two groups of channel steel scissors are arranged in a cross mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310983694.4A CN117051705A (en) | 2023-08-07 | 2023-08-07 | Trestle construction method for water area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310983694.4A CN117051705A (en) | 2023-08-07 | 2023-08-07 | Trestle construction method for water area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117051705A true CN117051705A (en) | 2023-11-14 |
Family
ID=88660153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310983694.4A Pending CN117051705A (en) | 2023-08-07 | 2023-08-07 | Trestle construction method for water area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117051705A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372743A (en) * | 2014-10-31 | 2015-02-25 | 中铁四局集团第二工程有限公司 | Rapid construction method for trestle |
| CN107119569A (en) * | 2017-05-19 | 2017-09-01 | 中铁十六局集团第五工程有限公司 | A kind of construction method of the oblique rock geology construction make-shift bridge of deep water shallow overburden |
| CN108342984A (en) * | 2018-01-15 | 2018-07-31 | 中铁大桥局集团有限公司 | A kind of beach soft foundation trestle and its installation sedimentation method |
| CN109056536A (en) * | 2018-08-09 | 2018-12-21 | 杭州江润科技有限公司 | Based on combined type hoop bracket construction of cast-in-situ box-beam method |
-
2023
- 2023-08-07 CN CN202310983694.4A patent/CN117051705A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104372743A (en) * | 2014-10-31 | 2015-02-25 | 中铁四局集团第二工程有限公司 | Rapid construction method for trestle |
| CN107119569A (en) * | 2017-05-19 | 2017-09-01 | 中铁十六局集团第五工程有限公司 | A kind of construction method of the oblique rock geology construction make-shift bridge of deep water shallow overburden |
| CN108342984A (en) * | 2018-01-15 | 2018-07-31 | 中铁大桥局集团有限公司 | A kind of beach soft foundation trestle and its installation sedimentation method |
| CN109056536A (en) * | 2018-08-09 | 2018-12-21 | 杭州江润科技有限公司 | Based on combined type hoop bracket construction of cast-in-situ box-beam method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109056548B (en) | Steel arch construction method | |
| WO2021093732A1 (en) | Displacement inclination rectification method for building | |
| CN108643207B (en) | Device for connecting side plate and bottom plate of bottom sealing-free concrete steel hanging box and construction method thereof | |
| CN105203398A (en) | Experiment loading device and method considering stress amplitude of web member joint and applied to truss arch bridge | |
| CN112324160A (en) | Temporary support frame for mounting assembly lattice type steel structure and use method | |
| CN215906792U (en) | Lattice column guiding, positioning and verticality adjusting installation equipment | |
| CN210031458U (en) | Large-span height difference tie bar arch structure pushing mechanism | |
| CN110793871A (en) | Integral self-balancing masonry integral shear test device | |
| CN109024288B (en) | Method for erecting steel truss girder by using precast concrete shoveling mat | |
| CN205530262U (en) | Adjust timing frame of steel tube column stake position among half reverse construction | |
| CN212895948U (en) | Curved steel beam pushing system | |
| CN117051705A (en) | Trestle construction method for water area | |
| JP2001059208A (en) | Reinforcing work method by steel arch for existing bridge | |
| CN214402806U (en) | Temporary support frame for mounting lattice type steel structure | |
| CN211815483U (en) | Railway bridge structure with fragment tracks for movable fracture | |
| CN113524386A (en) | Steel bench for precast beam construction and precast beam construction method | |
| CN110924312A (en) | Construction method of steel trestle | |
| CN110409607A (en) | A kind of steel structure system and its design method of the connection of assembled column pestle | |
| CN211815655U (en) | Wet seam reinforcing apparatus of bridge | |
| CN220768913U (en) | Prefabricated staircase installation positioner | |
| JP2006104832A (en) | Construction method of structure, structure and elevator | |
| CN211446555U (en) | Bailey beam limiting device for bridge abutment of steel trestle | |
| KR200290739Y1 (en) | Jacking system of bridge repair | |
| CN117758612A (en) | High-altitude splicing device for steel structure beam and using method | |
| CN113352018B (en) | Method for processing tie bars in batch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |