CN111501566B - Steel-concrete composite beam segment bolt connecting platform and connecting construction method thereof - Google Patents
Steel-concrete composite beam segment bolt connecting platform and connecting construction method thereof Download PDFInfo
- Publication number
- CN111501566B CN111501566B CN202010332471.8A CN202010332471A CN111501566B CN 111501566 B CN111501566 B CN 111501566B CN 202010332471 A CN202010332471 A CN 202010332471A CN 111501566 B CN111501566 B CN 111501566B
- Authority
- CN
- China
- Prior art keywords
- platform
- layer
- steel
- middle layer
- walking
- 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.)
- Active
Links
Images
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
Abstract
The invention provides a steel-concrete composite beam segment bolt connecting platform which comprises an outermost layer platform (1), an intermediate layer platform (2), an innermost layer platform (3) and a steering device (4), wherein the intermediate layer platform (2) is installed in the outermost layer platform (1), the innermost layer platform (3) is installed in the intermediate layer platform (2), and the steering device (4) is installed in the outermost layer platform (1) and used for controlling the outermost layer platform (1) to rotate. According to the invention, the relative movement between the outermost platform and the intermediate platform and the relative movement between the intermediate platform and the innermost platform are respectively arranged into a structure in which the walking wheel sets and the walking grooves are arranged in a matching manner, so that the moving positions and ranges of the walking wheel sets are limited by the positions and the lengths of the walking grooves, and the moving stability of the intermediate platform on the outermost platform and the moving stability of the innermost platform on the intermediate platform are effectively ensured.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a steel-concrete composite beam segment bolt connecting platform and a connecting construction method thereof.
Background
With the rapid development of highway construction industry in China, bridge construction as an important component of highway construction is developed vigorously. Particularly, the development and construction in the western world are prosperous, roads need to cross canyons, rivers and rivers between mountains, the bridges are generally selected to cross at the moment, the structural forms of the bridges are suspension bridges, cable-stayed bridges, arch bridges and the like, and the economic efficiency and the safety of the bridges are considered, particularly, the number of the bridge is increased, and the steel-concrete composite bridge in the mountainous area is more and more designed due to the promotion of steel removal capacity of China.
The steel-concrete composite beam bridge is generally a bridge formed by combining two structures, namely a steel main beam and a concrete bridge deck. The steel main beam is generally prefabricated in a centralized mode and erected and installed section by section and span by span. The connection problem between the sections of the steel main beam relates to high-altitude operation. At present, high-strength bolts are generally adopted for connecting the sections, the number of the high-strength bolts between the sections is large, the high-strength bolts are transversely connected by 3-5 sections, the high-strength bolts need workers with higher professional levels, the time consumption is long, and the bridge forming internal force and the use function of the steel-concrete composite beam bridge are directly determined by the quality of the connection quality, so that the connection problem is particularly important. The connecting workers have high labor intensity and are easy to fatigue, so that the design of a safe and stable movable working platform is very important.
The existing steel beam butt joint connecting platform is generally divided into two types, one type is a horse-riding type connecting platform, and the other type is a suspension connecting platform. Wherein:
horse-riding type connecting platform: the structure is simple, one main longitudinal beam is independently installed in each channel, hoisting equipment is required to be installed and dismantled, the hoisting equipment is installed to ride on a horse type connecting platform in a steel beam high-altitude butt joint state, great inconvenience is brought, the riding type connecting platform is installed to one main longitudinal beam in each channel, mutual walking cannot be achieved between platforms, the cooperativity is poor, in addition, the stability of the connecting platform on a horse is poor, the operation space of workers is small, and great hidden dangers are caused to the connecting quality.
Suspension type connection platform: the structure is simpler, hangs on the girder steel through hanging the hitch with hanging rope, starts the connection platform hoist engine and promotes to take one's place, uses the girder steel high altitude butt joint connection platform with the bridge height in 15 meters. The forward movement of the connecting platform requires manual and mechanical transport. The use of the platform is more limited by the under-bridge environment and the terrain. In addition, the riding type connecting platform is attached to a steel main beam which is erected or to be erected, the problem of space crossing exists, in order to ensure stability, a two-side buckling and hanging mode is generally adopted, and therefore additional internal force is brought to the installation of the steel main beam, and the stress of a permanent structure is influenced; the suspension type connecting platform is lifted by a winch and is buckled and hung by a steel wire rope, the performance of the winch determines the safety of operators, in addition, the steel wire rope belongs to a flexible rope, the operators walk on the platform, the vertical deflection is large, an unsafe feeling is brought to the workers, and certain influence can be caused on the connecting quality. In addition, when the steel wire rope moves forwards, the steel wire rope can be crossed with the steel main beam structure which is criss-cross, so that walking is blocked, and the transfer efficiency is low.
Disclosure of Invention
The invention aims to solve the problems and provides a steel-concrete composite beam segment bolt connecting platform which is convenient to install, good in stability and convenient for operators to operate and a connecting construction method thereof.
In order to achieve the purpose, the invention provides a steel-concrete composite beam segment bolt connecting platform which comprises an outermost layer platform, a middle layer platform, an innermost layer platform and a steering device, wherein the middle layer platform is arranged on the outermost layer platform and can perform displacement in the X-axis direction on the outermost layer platform;
the outermost platform comprises an outer platform frame, an outer reinforcing rib group and an outer safety net, the outer reinforcing rib group and the outer reinforcing rib group are arranged on the outer platform frame, the outer platform frame and the outer reinforcing rib group are formed by welding profile steels, and the outer safety net is arranged on the upper surface of the bottom of the outer platform frame;
preferably, the outer platform frame is further provided with a mounting plate for mounting the steering device, and the mounting plate is connected to the outer platform frame through bolts.
As a further scheme of the invention: the outer platform frame is also provided with one or more outer layer connecting lug rings, and the outer layer connecting lug rings are welded on the upper surface of the outer platform frame and used for connecting the connecting platform with the steel-concrete composite beam sections.
As a further scheme of the invention: in order to be convenient for being connected with the intermediate platform and limiting the moving range of the intermediate platform, an outer walking groove and an outer rolling shaft are further arranged on the outer platform frame, the outer walking groove is arranged at the lower end of the outer platform frame and is arranged with the outer platform frame in an integrated mode (processing into an integrated mode), the outer rolling shaft is arranged on the outer platform frame through an outer bearing seat and is arranged on the same horizontal plane with the outer walking groove, and the intermediate platform plays a role in guiding when moving on the outermost platform.
The middle layer platform comprises a middle layer platform frame, a middle layer reinforcing rib group and a middle layer safety net, the middle layer platform frame and the middle layer reinforcing rib group are formed by welding profile steels, and the middle layer safety net is arranged on the upper surface of the bottom of the middle layer platform frame;
preferably, the middle layer platform frame is further provided with one or more middle layer connecting earrings, and the middle layer connecting earrings are welded on the upper surface of the middle layer platform frame and used for connecting the connecting platform with the steel-concrete composite beam sections.
As a further scheme of the invention: in order to facilitate connection with the innermost platform and limit the moving range of the innermost platform, the intermediate platform frame is also provided with an intermediate layer first walking groove, an intermediate layer second walking groove and an intermediate layer rolling shaft, the intermediate layer first walking groove and the intermediate layer second walking groove are respectively vertically arranged at the lower end of the intermediate platform frame from top to bottom in parallel in sequence, and are integrally formed (processed into an integral body) with the intermediate platform frame, the intermediate layer first walking groove and the intermediate layer second walking groove; the middle layer rolling shaft is arranged on the middle layer platform frame through a middle layer bearing seat, arranged on the same horizontal plane with the middle layer first walking groove and used for guiding the innermost layer platform when the innermost layer platform displaces on the middle layer platform.
As a further scheme of the invention: in order to facilitate displacement on the outermost platform, the intermediate platform further comprises a first walking wheel set and a second walking wheel set, wherein the first walking wheel set and the second walking wheel set are respectively installed on the intermediate second walking grooves and are respectively arranged in parallel along the X-axis direction of the connecting platform.
The innermost platform comprises an inner platform frame, an inner reinforcing rib group and an inner safety net, the inner platform frame and the inner reinforcing rib group are formed by welding profile steels, and the inner safety net is arranged on the upper surface of the bottom of the inner platform frame;
preferably, the inner platform frame is further provided with one or more inner connecting lug rings, and the inner connecting lug rings are welded to the upper surface of the inner platform frame and used for connecting the connecting platform with the steel-concrete composite beam sections.
As a further scheme of the invention: in order to facilitate displacement on the middle platform, the innermost platform further comprises a third travelling wheel group and a fourth travelling wheel group, and the third travelling wheel group and the fourth travelling wheel group are respectively installed at the lower end of the inner platform frame and are respectively arranged in parallel along the X-axis direction of the connecting platform.
As a further scheme of the invention: the first travelling wheel set comprises a first connecting plate, a second connecting plate, a first connecting shaft, a second connecting shaft, a first bearing, a second bearing, a third bearing and a fourth bearing, wherein the first connecting plate and the second connecting plate are respectively arranged on the first connecting shaft and the second connecting shaft, and are respectively arranged on the middle layer platform so as to realize the connection of the first travelling wheel set and the middle layer platform; the first bearing and the second bearing are respectively arranged at two ends of the first connecting shaft, the first bearing is arranged at the outer side of the first connecting plate, the second bearing is arranged at the outer side of the second connecting plate and used for performing circumferential motion in the outer layer walking groove, and therefore the middle layer platform is driven to perform displacement in the X-axis direction on the outermost layer platform; third bearing and fourth bearing are installed respectively in the both ends of second connecting axle, just the third bearing sets up the outside in the third connecting plate, the fourth bearing sets up the outside in the fourth connecting plate for through circumferential motion in outer walking inslot, thereby drive the displacement that carries out the X axle direction on outermost platform in intermediate level platform.
The steering device comprises a steering motor, a driving gear connected to a driving shaft of the steering motor and a driven gear meshed with the driving gear, wherein the steering motor is connected with the connecting platform through a motor base, and the driven gear is fixedly connected with the connecting platform to realize synchronous motion of the connecting platform and the driven gear.
As a further scheme of the invention: the invention provides a connection construction method of a steel-concrete composite beam segment bolt connection platform, which comprises the following specific steps of:
A. preparation work: transporting each part of the connecting platform to the position below the existing movable main beam on the bridge girder erection machine through a movable transporting device, assembling the connecting platform and preparing a crane;
B. connecting a movable transportation device on an existing movable main beam on the bridge girder erection machine with the connecting platform, and hoisting the connecting platform;
C. starting the movable main beam to move so as to drive the connecting platform to move to the position of the butt joint surface of the steel beam;
D. after the connecting platform runs to the butt joint surface of the steel beams, the main beam is moved to stop running;
E. starting a steering device of the connecting platform to enable the connecting platform to rotate to the butt joint surface of the steel beam and enable the connecting platform to be parallel to the movable main beam;
F. connecting a first lifting and hanging device on the movable main beam with a connecting earring of the middle-layer platform;
G. pushing out the middle layer platform and the innermost layer platform, and limiting and locking the middle layer platform;
H. pushing out the innermost platform, connecting a steel wire rope of a second lifting and hanging device on the movable main beam with a connecting lug ring of the innermost platform, and limiting and locking the position of the innermost platform;
I. finishing the erection of the connecting platform so that an operator can conveniently place the connecting platform for construction;
J. an operator carries out construction so as to connect the high-strength bolts at the sections of the steel-concrete composite beam;
A. and after the construction is finished, reversely operating the step A to the step H to finish the disassembly between the connecting platform and the bridge girder erection machine.
The technical scheme of the invention has the following beneficial effects:
(1) the invention adopts a modular structure design, is convenient to install and is easy to maintain.
(2) According to the invention, the steering device is arranged on the connecting platform, so that the connecting platform can rotate automatically.
(3) The connecting platform is set to be the combination of the outermost platform, the middle platform and the innermost platform, so that the space of the connecting platform is effectively increased.
(4) According to the invention, the automatic extension and retraction of the connecting platform are realized through the structure that the middle layer platform can move on the outermost layer platform and the innermost layer platform can move on the middle layer platform and the connection with the lifting and hanging mechanism.
(5) According to the invention, the relative movement between the outermost platform and the intermediate platform and the relative movement between the intermediate platform and the innermost platform are respectively provided with the structure that the walking wheel sets are arranged in a line and matched with the walking grooves, so that the moving position and range of the walking wheel sets are limited by the position and length of the walking grooves, and the moving stability of the intermediate platform on the outermost platform and the moving stability of the innermost platform on the intermediate platform are effectively ensured.
(6) In the construction connection process, the use of auxiliary equipment is reduced, the equipment use cost is saved, and the input amount of the auxiliary equipment is effectively reduced.
(7) In the construction and connection process, the connecting platform is arranged on the bridge girder erection machine, so that the influence of the terrain of the bridge is avoided.
(8) In the construction connection process, the operations of moving, opening, closing and the like of the connection platform can be realized by only 2 operators, so that the personnel cost is effectively saved.
(9) The invention drives the displacement by adopting the walking trolley, so that the efficiency of the installation process or the disassembly process is higher, and the running is more stable.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is an axial schematic view of the overall construction of the present invention;
FIG. 2 is a schematic axial view of the outermost platform of the present invention;
FIG. 3 is an enlarged partial view of A of the present invention;
FIG. 4 is a schematic axial view of the structure of the intermediate layer platform of the present invention;
FIG. 5 is an enlarged partial view of B of the present invention;
FIG. 6 is a schematic axial view of the structure of the innermost platform of the present invention;
FIG. 7 is a structural axle schematic view of a road wheel set of the present invention;
FIG. 8 is a schematic axial view of the steering apparatus of the present invention;
fig. 9 is a view showing the axis of the connection structure in the construction state of the present invention.
Wherein-1: outermost platform, 1-1: outer platform frame, 1-2: outer layer reinforcing rib group, 1-3: outer safety net, 1-4: the outer layer is connected with the earrings and 1-5: outer layer walking groove, 1-6: outer layer rolling shaft, 1-7: an outer bearing seat;
2: intermediate layer platform, 2-1: middle layer platform frame, 2-2: middle layer reinforcing rib group, 2-3: middle layer safety net, 2-4: the middle layer is connected with the earrings, 2-5: a middle layer first walking groove, 2-6: middle layer second walking groove, 2-7: middle layer rolling shaft, 2-8: intermediate layer bearing seat, 2-9: first running wheel set, 2-91: first connecting plate, 2-92: second connecting plate, 2-93: first connecting shaft, 2-94: second connecting shaft, 2-95: first bearing, 2-96: second bearing, 2-97: third bearing, 2-98: fourth bearing, 2-10: a second running wheel set;
3: innermost stage, 3-1: inner layer platform frame, 3-2: inner layer reinforcing rib group, 3-3: inner layer safety net, 3-4: the inner layer is connected with the earrings and 3-5: third running wheel group, 3-6: a fourth travelling wheel group;
4: steering device, 4-1: steering motor, 4-2: driving gear, 4-3: driven gear, 4-4: mounting grooves;
01: first bridge girder, 02: a second bridge crane guide beam 03: girder, 04: first traveling trolley, 05: second walking trolley, 06: lifting device, 07: first lifting and hanging device, 08: and a second lifting and hanging device.
Detailed Description
Embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Referring to fig. 1 to 6, the bolted connection platform for steel-concrete composite beam segments provided by the invention comprises an outermost platform 1, an intermediate platform 2, an innermost platform 3 and a steering device 4, wherein the intermediate platform 2 is installed in the outermost platform 1, the innermost platform 3 is installed in the intermediate platform 2, and the steering device 4 is installed on the outermost platform 1 and is used for controlling the whole connection platform to rotate.
The outermost platform 1 comprises an outer platform frame 1-1, an outer reinforcing rib group 1-2 and an outer safety net 1-3, wherein the outer reinforcing rib group 1-2 and the outer safety net 1-3 are arranged on the outer platform frame 1-1, the outer platform frame 1-1 and the outer reinforcing rib group 1-2 are formed by welding profile steels, and the outer safety net 1-3 is installed on the upper surface of the bottom of the outer platform frame 1-1.
Preferably, the outer platform frame 1-1 is further provided with a mounting plate (not shown) for mounting the steering device 4, and the mounting plate (not shown) is bolted to the outer platform frame 1-1.
Preferably, the outer layer platform frame 1-1 is further provided with a plurality of outer layer connecting earrings 1-4, and the outer layer connecting earrings 1-4 are welded on the upper surface of the outer layer platform frame 1-1 and used for lifting and hanging connection when the connecting platform is connected with the steel-concrete composite beam segment.
Preferably, in order to facilitate connection with the intermediate platform 2 and limit the range of motion of the intermediate platform 2, the outer platform frame 1-1 is further provided with outer walking grooves 1-5 and outer rolling shafts 1-6, the outer walking grooves 1-5 are fixedly arranged at the lower end of the outer platform frame 1-1, and the outer rolling shafts 1-6 are arranged on the outer platform frame 1-1 through outer bearing seats 1-7 and are arranged on the same horizontal plane with the outer walking grooves 1-5, so that the intermediate platform 2 plays a role in guiding when moving on the outermost platform 1.
The middle layer platform 2 comprises a middle layer platform frame 2-1, a middle layer reinforcing rib group 2-2 and a middle layer safety net 2-3, the middle layer platform frame 2-1 and the middle layer reinforcing rib group 2-2 are formed by welding profile steels, and the middle layer safety net 2-3 is arranged on the upper surface of the bottom of the middle layer platform frame 2-1;
preferably, a plurality of middle layer connecting earrings 2-4 are further arranged on the middle layer platform frame 2-1, and the middle layer connecting earrings 2-4 are welded on the upper surface of the middle layer platform frame 2-1 and used for lifting and hanging connection when the connecting platform is connected with the steel-concrete composite beam segment.
Preferably, in order to facilitate connection with the innermost platform 3 and limit the moving range of the innermost platform 3, the middle-layer platform frame 2-1 is further provided with a middle-layer first walking groove 2-5, a middle-layer second walking groove 2-6 and a middle-layer rolling shaft 2-7, and the middle-layer first walking groove 2-5 and the middle-layer second walking groove 2-6 are respectively arranged at the lower end of the middle-layer platform frame 2-1 and are respectively arranged in parallel in the vertical direction; the middle layer rolling shaft 2-7 is arranged on the middle layer platform frame 2-1 through a middle layer bearing seat 2-8, is arranged on the same horizontal plane with the middle layer first walking groove 2-5, and is used for guiding the innermost layer platform 3 when the innermost layer platform 2 displaces.
Preferably, in order to facilitate displacement on the outermost platform 1, the intermediate platform 2 further includes a first traveling wheel set 2-9 and a second traveling wheel set 2-10, and the first traveling wheel set 2-9 and the second traveling wheel set 2-10 are respectively installed on the intermediate second traveling groove 2-6 and extend to both sides of the intermediate platform 2 in a horizontal direction.
The innermost platform 3 comprises an inner platform frame 3-1, an inner reinforcing rib group 3-2 and an inner safety net 3-3, the inner platform frame 3-1 and the inner reinforcing rib group 3-2 are formed by welding profile steels, and the inner safety net 3-3 is arranged on the upper surface of the bottom of the inner platform frame 3-1;
preferably, the inner platform frame 3-1 is further provided with a plurality of inner layer connecting earrings 3-4, and the inner layer connecting earrings 3-4 are welded on the upper surface of the inner platform frame 3-1 and used for lifting and hanging connection when the connecting platform is connected with the steel-concrete composite beam segment.
Preferably, in order to facilitate displacement on the middle stage 2, the innermost stage 3 further includes a third running wheel set 3-5 and a fourth running wheel set 3-6, and the third running wheel set 3-5 and the fourth running wheel set 3-6 are respectively installed at the lower end of the inner stage frame 3-1 and are respectively arranged in parallel in the horizontal direction.
As a further embodiment of the invention: referring to fig. 7, the first traveling wheel group 2-9 includes a first connecting plate 2-91, a second connecting plate 2-92, a first connecting shaft 2-93, a second connecting shaft 2-94, a first bearing 2-95, a second bearing 2-96, a third bearing 2-97 and a fourth bearing 2-98, the first connecting shaft 2-93 and the second connecting shaft 2-94 are penetratingly mounted on the first connecting plate 2-91 and the second connecting plate 2-92, and are connected with the intermediate deck 2 through the first connecting plate 2-91 and the second connecting plate 2-92, so that the first traveling wheel group 2-9 is mounted on the intermediate deck 2;
preferably, the first bearings 2-95 or the second bearings 2-96 are respectively installed at two ends of the first connecting shafts 2-93, so that the first connecting shafts can roll in the outer layer walking grooves 1-5 to drive the middle layer platform 2 to displace.
Preferably, third bearings 2-97 or fourth bearings 2-98 are respectively mounted at two ends of the second connecting shafts 2-94, so that the intermediate layer platform 2 is driven to displace by rolling in the outer layer walking grooves 1-5.
As a further embodiment of the invention: referring to fig. 8, the steering device 4 includes a steering motor 4-1, a driving gear 4-2 connected to a driving shaft of the steering motor 4-1, and a driven gear 4-3 engaged with the driving gear 4-2, the steering motor 4-1 is connected to the outermost platform 1 through a motor base (not shown), and the driven gear 4-3 is fixedly connected to the connecting platform to realize synchronous movement of the connecting platform and the driven gear 4-3.
As a further embodiment of the invention: referring to fig. 9, in a construction state of the steel-concrete composite beam segment bolt connection platform provided by the invention, the connection platform is connected with a main beam 03 through a lifting device 06, and is connected with a first bridge crane guide beam 01 and a second bridge crane guide beam 02 of a bridge girder erection machine through a first travelling trolley 04 and a second travelling trolley 05, and is driven by the first travelling trolley 04 and the second travelling trolley 05 to displace.
As a further embodiment of the invention: the invention provides a connection construction method of a steel-concrete composite beam segment bolt connection platform, which comprises the following specific steps of:
A. preparation work: transporting each part of the connecting platform to the position of a bridge girder erection machine through a mobile transportation device (such as a crane), assembling a main beam 03, a first walking trolley 04, a second walking trolley 05, a lifting device 06, a first lifting and hanging device 07 and a second lifting and hanging device 08, and then assembling the connecting platform and preparing the crane;
B. hoisting a main beam 03, and installing a lifting device 06, a first lifting and hanging device 07 and a second lifting and hanging device 08 which are installed on the main beam 03 in a matched manner with a 15T electric hoist;
C. starting the lifting device 06 and controlling the lifting device to move to a specified height position;
D. the movable transporting device lifts the connecting platform and transports the connecting platform to the position right below the lifting device 06;
E. connecting the connecting platform with the lifting device 06;
F. starting the first travelling trolley 04 and the second travelling trolley 05 to enable the connecting platform to move on the first bridge crane guide beam 01 and the second bridge crane guide beam 02 and move to the position of the butt joint surface of the steel beam;
G. after the connecting platform runs to the butt joint surface of the steel beam, the first travelling trolley 04 and the second travelling trolley 05 stop running;
H. dismantling a steel wire rope connected between the lifting device 06 and the connecting platform to prepare for steering of the connecting platform 01;
I. starting a steering device 4 of the connecting platform to rotate the connecting platform to the butt joint surface of the steel beam;
J. connecting a steel wire rope of the first lifting and hanging device 07 with a connecting earring of the middle-layer platform 2;
K. pushing out the middle layer platform 2 and the innermost layer platform 3, and limiting and locking the middle layer platform 2;
l, pushing out the innermost platform 3, connecting a steel wire rope of the second lifting and hanging device 08 with a connecting earring of the innermost platform 3, and limiting and locking the position of the innermost platform 3;
m, completing the erection of the connecting platform so that an operator can conveniently place the connecting platform for construction;
n, an operator carries out construction so as to connect the high-strength bolts at the cross section;
after the construction is finished, the connection between the second lifting and hanging device 08 and the innermost platform 3 is released, and the innermost platform 3 is pushed into the middle platform 2;
p, the connection between the first lifting and hanging device 07 and the middle-layer platform 2 is released, and the middle-layer platform 2 is pushed into the outermost-layer platform 1;
q, starting the steering device 4 to rotate the connecting platform to the initial position;
r, connecting a steel wire rope of the lifting device 06 with the outermost platform 1;
s, starting the first travelling trolley 04 and the second travelling trolley 05 to drive the connecting platform to travel to the initial position;
t, the movable transportation device lifts the connecting platform, and then the connection relation between the lifting device 06 and the connecting platform is released;
u, transporting the connecting platform to the ground;
and V, transporting the main beam and other structures to the ground to finish the disassembly between the connecting platform and the bridge erecting machine.
Preferably, the steps A-V can be repeatedly operated according to construction requirements, so that the connection of the high-strength bolts at the whole steel-concrete composite beam section is realized.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The connection construction method of the steel-concrete composite beam segment bolted connection platform is characterized in that the steel-concrete composite beam segment bolted connection platform comprises an outermost layer platform (1), an intermediate layer platform (2), an innermost layer platform (3) and a steering device (4), wherein the intermediate layer platform (2) is installed on the outermost layer platform (1), the intermediate layer platform (2) displaces on the outermost layer platform (1), the innermost layer platform (3) is installed on the intermediate layer platform (2) and displaces on the intermediate layer platform (2), and the steering device (4) is installed in the outermost layer platform (1) and is used for driving the connection platform to rotate;
the outermost platform (1) comprises an outer platform frame (1-1), an outer reinforcing rib group (1-2) and an outer safety net (1-3), wherein an installation plate for installing a steering device is arranged on the outer platform frame (1-1), the outer reinforcing rib group (1-2) is installed on the outer platform frame (1-1), and the outer safety net (1-3) is arranged on the outer platform frame (1-1);
the middle-layer platform (2) comprises a middle-layer platform frame (2-1), a middle-layer reinforcing rib group (2-2) and a middle-layer safety net (2-3), wherein the middle-layer reinforcing rib group (2-2) is arranged on the middle-layer platform frame (2-1), and the middle-layer safety net (2-3) is arranged on the middle-layer platform frame (2-1); and is provided with a middle layer first walking groove (2-5), a middle layer second walking groove (2-6), a middle layer rolling shaft (2-7), a first walking wheel group (2-9), a second walking wheel group (2-10) and one or more than one connecting lug ring group, wherein the middle layer first walking groove (2-5) and the middle layer second walking groove (2-6) are arranged below the middle layer platform frame (2-1), the middle layer rolling shaft (2-7) is arranged on the middle layer platform frame (2-1) through a middle layer bearing seat (2-8), the middle layer rolling shaft (2-7) and the middle layer first walking groove (2-5) are arranged on the same horizontal plane, the first walking wheel group (2-9) and the second walking wheel group (2-10) are arranged in parallel, the first traveling wheel set (2-9) and the second traveling wheel set (2-10) are respectively connected to the bottom surface of the middle layer second traveling groove (2-6), and the connecting lug ring set consists of two connecting lug rings;
the innermost platform (3) comprises an inner platform frame (3-1), an inner reinforcing rib group (3-2) and an inner safety net (3-3), the inner reinforcing rib group (3-2) is installed on the inner platform frame (3-1), and the inner safety net (3-3) is arranged on the inner platform frame (3-1); a third traveling wheel group (3-5), a fourth traveling wheel group (3-6) and one or more connecting ear ring groups are arranged on the innermost platform (3), the third traveling wheel group (3-5) and the fourth traveling wheel group (3-6) are arranged in parallel, the third traveling wheel group (3-5) and the fourth traveling wheel group (3-6) are respectively connected with the inner platform frame (3-1), and the connecting ear ring group consists of two connecting ear rings;
the steering device (4) comprises a steering motor (4-1), a driving gear (4-2) and a driven gear (4-3), the steering motor (4-1) is mounted on the outermost platform (1) through a motor base, the driving gear (4-2) is mounted on a driving shaft of the steering motor (4-1), and the driven gear (4-3) is meshed with the driving gear (4-2);
the connection construction method of the steel-concrete composite beam segment bolt connection platform comprises the following specific steps:
A. preparation work: transporting each part of the connecting platform to the position below the existing movable main beam on the bridge girder erection machine through a movable transporting device, assembling the connecting platform and preparing a crane;
B. connecting a movable transportation device on an existing movable main beam on the bridge girder erection machine with the connecting platform, and hoisting the connecting platform;
C. starting the movable main beam to move so as to drive the connecting platform to move to the position of the butt joint surface of the steel beam;
D. after the connecting platform runs to the butt joint surface of the steel beams, the main beam is moved to stop running;
E. starting a steering device of the connecting platform, enabling the connecting platform to rotate to the butt joint surface of the steel beam, and enabling the connecting platform and the movable main beam to be parallel;
F. connecting a first lifting and hanging device on the movable main beam with a connecting earring of the middle-layer platform;
G. pushing out the middle layer platform and the innermost layer platform, and limiting and locking the middle layer platform;
H. pushing out the innermost platform, connecting a steel wire rope of a second lifting and hanging device on the movable main beam with a connecting lug ring of the innermost platform, and limiting and locking the position of the innermost platform;
I. finishing the erection of the connecting platform so that an operator can conveniently place the connecting platform for construction;
J. an operator carries out construction so as to connect the high-strength bolts at the sections of the steel-concrete composite beam;
K. and after the construction is finished, reversely operating the step A to the step H to finish the disassembly between the connecting platform and the bridge girder erection machine.
2. The connection construction method of the steel-concrete composite beam segment bolt connection platform according to claim 1, characterized in that: the outer layer platform frame (1-1) is provided with one or more connecting ear ring groups, and each connecting ear ring group consists of two connecting ear rings.
3. The connection construction method of the steel-concrete composite beam segment bolt connection platform according to claim 2, characterized in that: the outer platform frame (1-1) is further provided with an outer walking groove (1-5) and an outer rolling shaft (1-6), the outer walking groove (1-5) is fixedly arranged at the lower end of the outer platform frame (1-1), and the outer rolling shaft (1-6) is installed on the outer platform frame (1-1) through an outer bearing seat (1-7) and is arranged on the same horizontal plane with the outer walking groove (1-5).
4. The connection construction method of the steel-concrete composite beam segment bolt connection platform according to claim 3, characterized in that: the middle layer first walking groove (2-5), the middle layer second walking groove (2-6) and the middle layer platform frame (2-1) are integrally formed;
the outer layer walking grooves (1-5) and the outermost layer platform (1) are integrally formed.
5. The connection construction method of the steel-concrete composite beam segment bolt connection platform according to claim 4, characterized in that: the first traveling wheel group (2-9), the second traveling wheel group (2-10), the third traveling wheel group (3-5) and the fourth traveling wheel group (3-6) are consistent in structure.
6. The connection construction method of the steel-concrete composite beam segment bolt connection platform according to claim 5, characterized in that: the first walking wheel group (2-9) comprises a first bearing (2-95), a second bearing (2-96), a third bearing (2-97) and a fourth bearing (2-98) which are movably arranged in the walking groove, the first bearing (2-95) and the second bearing (2-96) are respectively arranged on the first connecting shaft (2-93), the third bearings (2-97) and the fourth bearings (2-98) are respectively arranged on the second connecting shafts (2-94), two ends of the first connecting shaft (2-93) and the second connecting shaft (2-94) are respectively provided with a first connecting plate (2-91) and a second connecting plate (2-92), and is connected with the middle layer platform (2) through a first connecting plate (2-91) and a second connecting plate (2-92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010332471.8A CN111501566B (en) | 2020-04-24 | 2020-04-24 | Steel-concrete composite beam segment bolt connecting platform and connecting construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010332471.8A CN111501566B (en) | 2020-04-24 | 2020-04-24 | Steel-concrete composite beam segment bolt connecting platform and connecting construction method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111501566A CN111501566A (en) | 2020-08-07 |
| CN111501566B true CN111501566B (en) | 2022-04-15 |
Family
ID=71871288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010332471.8A Active CN111501566B (en) | 2020-04-24 | 2020-04-24 | Steel-concrete composite beam segment bolt connecting platform and connecting construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111501566B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100377529B1 (en) * | 2000-05-19 | 2003-03-29 | (주)안 엔지니어링 | Working platform for bridge construction |
| CN202144438U (en) * | 2011-05-18 | 2012-02-15 | 无锡吊蓝机械制造有限公司 | Telescopic hanging basket |
| CN102409614B (en) * | 2011-09-02 | 2013-08-07 | 中铁上海工程局有限公司 | Segmental supporting cross girders for segmental girder assembly bridge fabrication machine |
| CN102677591A (en) * | 2012-05-16 | 2012-09-19 | 上海市第一市政工程有限公司 | Moving hanging basket |
| CN203639056U (en) * | 2013-12-10 | 2014-06-11 | 江苏金鼎腾新机械装备有限公司 | Adjustable working platform of shear fork type self-walking aerial working platform |
| CN206873302U (en) * | 2017-06-09 | 2018-01-12 | 中交第一公路工程局有限公司 | A kind of moving platform device for welding steel box-girder longitudinal direction butt weld |
| CN110273381B (en) * | 2019-07-25 | 2024-03-22 | 贵州省交通工程有限公司 | Under-bridge operation platform system |
| CN110863439A (en) * | 2019-12-04 | 2020-03-06 | 胡妹芳 | Bridge construction that can control flexible is with hanging basket |
-
2020
- 2020-04-24 CN CN202010332471.8A patent/CN111501566B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN111501566A (en) | 2020-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102230381B (en) | Hollow needle beam lining trolley | |
| JP4264470B2 (en) | Bridge girder member erection method and erection device | |
| CN101537973A (en) | Method for continuously hoisting rolling mill housings by hydraulic pushing and lifting | |
| CN103726421A (en) | Height and span adjustable track paver for metro construction | |
| CN106593471A (en) | Moveable trestle with stepping type self-walking truss structure for large-section tunnel invert construction | |
| CN201180066Y (en) | Tyre type large-capacity tonnage carrying implement | |
| CN101481903B (en) | Method for constructing hilly region rope-suspension bridge main beam by span cable supported crane assembling | |
| CN114808747A (en) | Multifunctional bridge girder erection machine and bridge girder erection construction method | |
| CN109680614B (en) | Method and equipment for quickly transferring ultra-large bridge girder erection machine of assembled steel-concrete combined bridge | |
| CN111395195A (en) | Operation hanging basket for bolted connection of steel-concrete composite beam segments based on bridge girder erection machine | |
| CN110561996A (en) | multifunctional bidirectional driving transport vehicle | |
| CN108130862B (en) | Tunnel passing beam vehicle | |
| CN111501566B (en) | Steel-concrete composite beam segment bolt connecting platform and connecting construction method thereof | |
| CN102071641A (en) | Integral bridge girder erection machine of distributed landing leg type transportation rack of concrete beam packing bridge crane and bridge girder erection engineering method thereof | |
| CN110700098B (en) | Safe crossing method for double-guide-beam type bridge girder erection machine | |
| CN114508052A (en) | Pier-beam assembly type integrated construction method | |
| CN211524104U (en) | Novel bridge girder erection machine | |
| CN210368664U (en) | Wide-body bridge girder erection machine | |
| CN211106798U (en) | Multifunctional bidirectional driving transport vehicle | |
| CN108221512A (en) | Adjustable track laying machine | |
| CN114086471A (en) | Simple and easy mobile device of bridge annex installation | |
| CN108130864B (en) | Integrally-assembled bridge whole-span beam transportation and erection equipment | |
| CN111851301A (en) | Bridge erecting machine | |
| CN212714532U (en) | Operation hanging basket for bolted connection of steel-concrete composite beam segments based on bridge girder erection machine | |
| CN110748163A (en) | Novel bridge girder erection machine |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |