CN113346412B - Highway tunnel hogging moment truss cable trench template tractor and manufacturing method thereof - Google Patents
Highway tunnel hogging moment truss cable trench template tractor and manufacturing method thereof Download PDFInfo
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- CN113346412B CN113346412B CN202110464624.9A CN202110464624A CN113346412B CN 113346412 B CN113346412 B CN 113346412B CN 202110464624 A CN202110464624 A CN 202110464624A CN 113346412 B CN113346412 B CN 113346412B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/088—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling devices movable inside conduits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/08—Installations of electric cables or lines in or on the ground or water in tunnels
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Abstract
The invention relates to a hogging moment truss cable trench template tractor for a highway tunnel. The bottom of the frame base is provided with a 26-type foamed solid wheel, and the top of the frame base is connected with a truss top beam; the truss top beam is connected with the truss main beam to form a negative bending moment frame structure; one end of the truss top beam is provided with a pair of hooks; hemp ropes are arranged at the tail parts of the truss main beams; and stay bar beams are arranged between the frame base and the truss top beam and between the truss top beam and the truss main beam. The invention also discloses a manufacturing method of the tractor. The invention can transfer the plane steel template more quickly and more laborsavingly under the construction state of adopting the traditional plane steel template when being not suitable for adopting the integral hydraulic template trolley of the cable trench.
Description
Technical Field
The invention relates to the technical field of cable trench construction appliances for highway tunnel auxiliary projects, in particular to a cable trench template tractor for a hogging moment truss of a highway tunnel and a manufacturing method thereof.
Background
According to the first civil engineering JTG 3370.1-2018 of the highway tunnel design code, the cable trench is mainly used for laying communication cables, power cables, fire fighting pipes and the like, and the communication cables and the power cables are usually respectively arranged in the cable trenches at two sides. The inside passageway that lays cable as tunnel electromechanical engineering of cable pit, cable duct top apron can regard as the access way of tunnel operation period simultaneously. The light reflecting facilities are additionally arranged on the surface or the side of the tunnel cable trench, so that the driving comfort and the safety of the road are improved. In recent years, mechanized cluster operation of tunnel construction becomes a development trend, the integral hydraulic formwork trolley for the cable trench is widely applied to tunnel engineering, the formwork trolley is generally 12m long, construction progress is limited every day, the cost of the trolley is high, and assembling and disassembling periods are long. If the tunnel group is a medium or short tunnel group, each tunnel is provided with an integral hydraulic template trolley, so that great economic burden is caused to the project department. The original intention of integral hydraulic pressure template platform truck design is exactly to liberate both hands, reduces the work, improves work efficiency, mechanical type movable mould board. However, when the radius of the flat curve of the tunnel is smaller, the appearance line shape of the cable trench constructed by the integral hydraulic template trolley is difficult to control.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the highway tunnel hogging moment truss cable trench template tractor which can transfer a plane steel template more quickly and more laborsavingly under the construction state of adopting the traditional plane steel template when being not suitable for adopting the integral hydraulic template trolley of the cable trench.
The invention aims to solve another technical problem of providing a manufacturing method of the hogging moment truss cable trench formwork tractor for the highway tunnel.
In order to solve the problems, the invention provides a hogging moment truss cable trench template tractor for a highway tunnel, which is characterized in that: the tractor comprises a frame base, a truss main beam and a negative bending moment frame structure; the bottom of the frame base is provided with a 26-type foamed solid wheel, and the top of the frame base is connected with a truss top beam; the truss top beam is connected with the truss main beam to form a negative bending moment frame structure; one end of the truss top beam is provided with a pair of hooks; hemp ropes are arranged at the tail parts of the truss main beams; and stay bar beams are arranged between the frame base and the truss top beam and between the truss top beam and the truss main beam.
The frame base is rectangular with the height of 95cm and the width of 44cm.
The truss top beam is of a trapezoid-like structure with less than full sides formed by 120cm, 60cm and 360 cm; the inclined side of the trapezoid is 60cm, and the height is 44cm.
The truss main beam is an arc with the radius of 570cm, the chord length of 390cm and the chord height of 34.4 cm.
The welding position of the end part of the hogging moment frame structure is the end part of the truss main beam with the length of 120cm and the truss top beam with the length of 360 cm.
The auxiliary hook is formed by phi 14 deformed steel bars with the diameter of 5cm and the middle of two semicircles connected with a straight line of 30 cm.
The brace beam is a straight-line section steel bar made of phi 14 thread steel.
The manufacturing method of the hogging moment truss cable duct template tractor for the highway tunnel comprises the following steps of:
the method comprises the steps of manufacturing a frame base, a truss top beam and a truss main beam by welding 42 x 4mm seamless steel pipes respectively;
welding the bottom of the truss top beam and the top of the frame base at an orthogonal bisection position;
thirdly, welding the ends of the truss main beam and the truss top beam to form a negative bending moment frame structure;
fourthly, 26-type foaming solid wheels with the axle spacing of 50cm are installed at the width position of the bottom of the frame base;
fifthly, mounting a pair of hooks at the cross angle of 60cm and 360cm at the end part of the truss top beam;
sixthly, connecting a hemp rope which is 1.5m long and has a diameter of 32mm to the tail of the truss main beam;
and welding stay bar beams between the frame base and the truss top beam and between the truss top beam and the truss main beam to finish the manufacturing.
In the second step, the orthogonal bisection welding position is the middle point position of the bottom 120cm of the truss top beam and the top 44cm of the frame base.
Compared with the prior art, the invention has the following advantages:
1. according to the invention, the truss top beam and the truss main beam are connected to form a hogging moment frame structure, and the hogging moment truss system has prestress, anti-arching effect, reasonable stress, high template transferring speed and high transportation process controllability.
2. The invention utilizes the lever principle to save labor, is small, exquisite and light, is convenient to transport and has high turnover utilization rate. When the plane steel formwork is transported in a matched manner, the efficiency is high, the cost is low, the applicability is wide, and the method is suitable for the condition that the cable trench integral type hydraulic formwork trolley is not suitable for being adopted.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a side view of the present invention.
FIG. 3 is a schematic view of the carriage base of the present invention.
Fig. 4 is a schematic view of a truss header of the present invention.
Fig. 5 is a schematic view of a truss main beam of the present invention.
FIG. 6 is a schematic view of a negative moment frame structure according to the present invention.
Fig. 7 is a schematic view of the hanger of the present invention.
Fig. 8 is a layout of the present invention.
In the figure: 1-a frame base; 2-truss top beam; 3, truss main beam; 4-hogging moment frame construction; 5, hooking; 6-a strut beam; 7-26 type foamed solid wheel; 8, hemp rope.
Detailed Description
As shown in fig. 1 to 8, the model tractor for the hogging moment truss cable trench of the highway tunnel comprises a frame base 1, a truss main beam 3 and a hogging moment frame structure 4. The bottom of the frame base 1 is provided with a 26-type foamed solid wheel 7, and the top of the frame base is connected with a truss top beam 2; the truss top beam 2 is connected with the truss main beam 3 to form a negative bending moment frame structure 4; one end of the truss top beam 2 is provided with a pair of hooks 5; the tail part of the truss main beam 3 is provided with a hemp rope 8; and stay bar beams 6 are arranged between the frame base 1 and the truss top beam 2 and between the truss top beam 2 and the truss main beam 3.
Wherein: the frame base 1 is rectangular with the height of 95cm and the width of 44cm.
The truss top beam 2 is in a trapezoid-like structure with less than full sides formed by 120cm, 60cm and 360 cm; the inclined side of the trapezoid is 60cm, and the height is 44cm.
The truss girder 3 is an arc with the radius of 570cm, the chord length of 390cm and the chord height of 34.4 cm.
The welding position of the end part of the negative bending moment frame structure 4 is 120cm of the end part of the truss main beam 3 and 360cm of the truss top beam 2.
The auxiliary hook 5 is composed of phi 14 deformed steel bars with the diameter of 5cm and two semicircles connected with a straight line of 30 cm.
The brace beam 6 is a straight-line section steel bar of phi 14 thread steel.
The manufacturing method of the hogging moment truss cable duct template tractor for the highway tunnel comprises the following steps of:
the frame base 1, the truss top beam 2 and the truss main beam 3 are respectively manufactured by welding 42 x 4mm seamless steel pipes;
welding the bottom of the truss top beam 2 and the top of the frame base 1 at an orthogonal bisection position; the orthogonal bisection welding position is a middle point position of 120cm at the bottom of the truss top beam 2 and 44cm at the top of the frame base 1;
thirdly, welding the ends of the truss main beams 3 and the truss top beams 2 to form a negative bending moment frame structure 4;
a 26-type foaming solid wheel 7 with the axle spacing of 50cm is installed at the bottom width of the frame base 1;
a pair of hooks 5 is arranged at the 60cm and 360cm intersection of the end part of the truss top beam 2;
sixthly, connecting a hemp rope 8 which is 1.5m long and has a diameter of 32mm to the tail of the truss main beam 3;
and welding the stay bar beams 6 between the frame base 1 and the truss top beam 2 and between the truss top beam 2 and the truss main beam 3 to finish the manufacturing.
When the combined steel template is used, firstly, the hook 5 is hung at the bolt joint of the short edge or the long edge of the combined steel template to the template transferring starting point according to the requirement of the using size of the template; secondly, pulling a hemp rope 8 at the tail end of the truss to balance the truss, and enabling the template to be in a suspended state; pushing the truss main beam 3 again to convey the template to the use, and stably dropping the template on the truss hook 5 to the ground by virtue of the hemp ropes 8 for discharging; and finally, pulling the hemp rope 8 to the starting point of template transfer, and repeating the transfer process.
Claims (6)
1. A manufacturing method of a hogging moment truss cable trench template tractor for a highway tunnel is characterized by comprising the following steps: the tractor comprises a frame base (1), a truss main beam (3) and a hogging moment frame structure (4); the bottom of the frame base (1) is provided with a 26-type foamed solid wheel (7), and the top of the frame base is connected with a truss top beam (2); the truss top beam (2) is connected with the truss main beam (3) to form a hogging moment frame structure (4); one end of the truss top beam (2) is provided with a pair of hooks (5); the tail part of the truss main beam (3) is provided with a hemp rope (8); strut beams (6) are arranged between the frame base (1) and the truss top beam (2) and between the truss top beam (2) and the truss main beam (3); the truss top beam (2) is of a trapezoid-like structure with less than full edges formed by 120cm, 60cm and 360 cm; the inclined edge of the trapezoid is 60cm, and the height of the inclined edge is 44cm; the truss main beam (3) is an arc with the radius of 570cm, the chord length of 390cm and the chord height of 34.4 cm;
the manufacturing method comprises the following steps:
the method comprises the steps of manufacturing a frame base (1), a truss top beam (2) and a truss main beam (3) by welding 42 x 4mm seamless steel pipes respectively;
welding the bottom of the truss top beam (2) and the top of the frame base (1) at an orthogonal bisection position;
thirdly, welding the ends of the truss main beams (3) and the truss top beams (2) to form a hogging moment frame structure (4);
fourthly, a 26-type foaming solid wheel (7) with the axle spacing of 50cm is installed at the width position of the bottom of the frame base (1);
fifthly, a pair of hooks (5) are arranged at the intersection angle of 60cm and 360cm of the end part of the truss top beam (2);
sixthly, connecting a hemp rope (8) which is 1.5m long and has a diameter of 32mm to the tail of the truss main beam (3);
and welding stay bar beams (6) between the frame base (1) and the truss top beam (2) and between the truss top beam (2) and the truss main beam (3) to finish the manufacturing.
2. The manufacturing method of the hogging moment truss cable trench formwork tractor for the highway tunnel according to claim 1, wherein the manufacturing method comprises the following steps: the frame base (1) is rectangular with the height of 95cm and the width of 44cm.
3. The manufacturing method of the hogging moment truss cable trench formwork tractor for the highway tunnel according to claim 1, wherein the manufacturing method comprises the following steps: the welding position of the end part of the hogging moment frame structure (4) is the end part of 120cm of the truss main beam (3) and 360cm of the truss top beam (2).
4. The manufacturing method of the hogging moment truss cable trench formwork tractor for the highway tunnel according to claim 1, wherein the manufacturing method comprises the following steps: the auxiliary hook (5) is formed by phi 14 deformed steel bars with the diameter of 5cm and the middle of two semicircles connected with a straight line of 30 cm.
5. The manufacturing method of the hogging moment truss cable trench formwork tractor for the highway tunnel according to claim 1, wherein the manufacturing method comprises the following steps: the brace rod beam (6) is a straight-line section steel bar of phi 14 thread steel.
6. The manufacturing method of the hogging moment truss cable trench formwork tractor for the highway tunnel according to claim 1, wherein the manufacturing method comprises the following steps: the orthogonal bisection welding position in the step II is the middle point position of 120cm at the bottom of the truss top beam (2) and 44cm at the top of the frame base (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110464624.9A CN113346412B (en) | 2021-04-28 | 2021-04-28 | Highway tunnel hogging moment truss cable trench template tractor and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110464624.9A CN113346412B (en) | 2021-04-28 | 2021-04-28 | Highway tunnel hogging moment truss cable trench template tractor and manufacturing method thereof |
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| CN113346412A CN113346412A (en) | 2021-09-03 |
| CN113346412B true CN113346412B (en) | 2022-11-08 |
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