CN111021748A - Method for transporting lower steel column of trestle bridge - Google Patents
Method for transporting lower steel column of trestle bridge Download PDFInfo
- Publication number
- CN111021748A CN111021748A CN201911379393.0A CN201911379393A CN111021748A CN 111021748 A CN111021748 A CN 111021748A CN 201911379393 A CN201911379393 A CN 201911379393A CN 111021748 A CN111021748 A CN 111021748A
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- China
- Prior art keywords
- steel column
- transport
- transport trolley
- trolley
- transportation
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Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
Abstract
The invention discloses a method for transporting lower steel columns of trestles, which comprises the following steps: receiving the model parameters of the steel column, wherein the model parameters comprise the weight of the steel column and the length value of the steel column along the set transportation direction; selecting transport trolleys according to the model parameters, wherein the transport trolleys comprise a first transport trolley and a second transport trolley, and the total length of the first transport trolley and the second transport trolley in the set transport direction is not less than 2/3 of the length value of the steel column; placing the steel column above a first transport trolley and a second transport trolley, wherein the first transport trolley is positioned in front of the second transport trolley in the set transport direction at intervals; pulling the first transport trolley forwards along the set transport direction and pushing the second transport trolley forwards until the steel column moves to the set hoisting station; and hoisting the steel column. Because first travelling bogie and second travelling bogie can avoid the steel column to exist outside great length hangs the dolly at setting for the ascending both ends of direction of transportation, can reduce the risk of toppling, improve the stationarity of transportation.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a method for transporting lower steel columns of trestle bridges.
Background
On the site of a high-rise building site, steel components are mainly constructed and installed in a mode of building blocks, professional constructors use hoisting equipment to hoist the steel components in place and assemble the steel components layer by layer in high-altitude in situ, and the steel components are welded and connected through fasteners, so that the site is assembled immediately and fixed permanently.
During construction of an underground steel structure, the first support is not yet detached, a steel column below a trestle plate of the first support cannot be hoisted in place by using a tower crane, the steel column needs to be hoisted to a non-trestle plate coverage area first, and then a transport trolley is used for transporting the steel column to a construction position (namely, the trestle coverage area).
At present, the mode of travelling bogie transportation adopts single dolly to support and transport under the steel column, because the steel column is longer usually, can constitute cantilever type structure for the dolly, influences the stability of transportation, and the steel column is great for the risk of dolly toppling.
Therefore, how to transport steel columns more smoothly is a technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
In view of the above, the invention aims to provide a method for transporting a steel column under a trestle, which can transport the steel column more stably.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for transporting lower steel columns of trestles comprises the following steps:
receiving model parameters of a steel column, wherein the model parameters comprise the weight of the steel column and the length value of the steel column along a set transportation direction;
selecting transport trolleys according to the model parameters, wherein the transport trolleys comprise a first transport trolley and a second transport trolley, and the total length of the first transport trolley and the second transport trolley in the set transport direction is not less than 2/3 of the length value of the steel column;
placing the steel column above the first transport trolley and the second transport trolley, wherein the first transport trolley is positioned in front of the second transport trolley in the set transport direction at intervals;
pulling the first transport trolley forwards along the set transport direction and pushing the second transport trolley forwards until the steel column moves to a set hoisting station;
and hoisting the steel column.
Preferably, the hoisting the steel column comprises:
judging whether a transport trolley moves under the driving of the steel column;
if so, fixing the moving transport trolley until the steel column is lifted to a set height.
Preferably, the judging whether the transportation trolley moves under the driving of the steel column specifically includes:
and judging whether the transport trolley moves under the driving of the steel column according to the detection result of the encoder connected to the wheel shaft of the transport trolley.
Preferably, the placing the steel column above the first and second transportation carts comprises:
and in the set transport direction, the steel column is placed above the first transport trolley and the second transport trolley in a mode that the tail end of the steel column is aligned with the tail end of the second transport trolley, and the head end of the steel column exceeds the head end of the first transport trolley.
Preferably, the selecting a transport cart according to the model parameter includes:
and selecting two identical transport trolleys as the first transport trolley and the second transport trolley respectively according to the gravity of the steel column and the bearing capacity of each wheel of the transport trolleys, wherein the total bearing capacity of all wheels of the first transport trolley and the second transport trolley is greater than the gravity of the steel column.
Preferably, the placing the steel column above the first and second transportation carts comprises:
placing the center line of the steel column extending along the set transportation direction on a supporting plate of the transportation trolley in alignment with the set center line of the transportation trolley;
the set central lines of the two transport trolleys are arranged in a collinear manner along the set transport direction;
the wheels on each transport trolley are arranged in pairs, the paired wheels are symmetrically arranged on two sides of the set central line, and two side baffles which are symmetrical relative to the set central line are arranged on the supporting plate of the transport trolley.
According to the transportation method provided by the invention, in the process that the steel column is transported to the set hoisting station by the transportation trolley, the first transportation trolley and the second transportation trolley are arranged in a spaced non-contact manner, and the total length of the first transportation trolley and the second transportation trolley in the set transportation direction is not less than 2/3 of the length value of the steel column, so that the situation that the two ends of the steel column in the set transportation direction have larger lengths and hang out of the trolley can be avoided, the overturning risk can be reduced, and the transportation stability is improved. In addition, two transport trolleys are adopted to share part of the length of the steel column respectively, and the risk that the transport trolleys overturn under the pressure of the steel column can be reduced in the hoisting process.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a front view of the method of the present invention with the steel columns in the transport cart position, with arrows indicating the set transport direction;
FIG. 2 is a top view of the method of the present invention with the steel columns in the transport cart position, with the arrows indicating the set transport direction;
FIG. 3 is a front view of the method of the present invention in a steel column lifted condition;
FIG. 4 is a front view of the method of the present invention in another condition of lifting the steel columns;
FIG. 5 is a flow chart of a method provided by the present invention.
Reference numerals:
1-a first transport trolley, 2-a second transport trolley, 3-a steel column, 4-a floor, 5-a side baffle and 6-a supporting plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide a method for transporting the lower steel column of the trestle, which can transport the steel column more stably.
It should be noted that in the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The invention provides a concrete embodiment of a method for transporting a lower steel column (or called a steel beam) of a trestle, which comprises the following steps:
s1: and receiving the model parameters of the steel column 3, wherein the model parameters comprise the weight of the steel column 3 and the length value of the steel column along the set transportation direction.
S2: and selecting transport trolleys according to the model parameters, wherein the transport trolleys comprise a first transport trolley 1 and a second transport trolley 2, and the total length of the first transport trolley 1 and the second transport trolley 2 in the set transport direction is not less than 2/3 of the length value of the steel column.
S3: and placing the steel column 3 above the first transport trolley 1 and the second transport trolley 2, wherein the first transport trolley 1 is positioned in front of the second transport trolley 2 in the set transport direction at intervals.
S4: and pulling the first transport trolley 1 forwards along the set transport direction and pushing the second transport trolley 2 forwards until the steel column 3 moves to the set hoisting station.
It should be noted that the weight of the steel column 3 is usually large, and further the friction between the steel column 3 and the transportation trolley is relatively large, forward acting force is applied to the first transportation trolley 1 and the second transportation trolley 2, and the steel column 3 can move forward along with the transportation trolley synchronously under the driving of the friction.
S5: and hoisting the steel column 3.
By adopting the transportation method provided by the embodiment, in the process of transporting the steel column 3 to the set hoisting station by the transportation trolley, because the first transportation trolley 1 and the second transportation trolley 2 are arranged in a spaced non-contact manner, and the total length of the first transportation trolley 1 and the second transportation trolley 2 in the set transportation direction is not less than 2/3 of the length value of the steel column, the situation that the steel column 3 has a large length at the two ends in the set transportation direction to overhang the trolley can be avoided, the overturning risk can be reduced, and the transportation stability is improved. In addition, two transport trolleys are adopted to share part of the length of the steel column 3, so that the risk of overturning of the transport trolleys under the pressure of the steel column 3 can be reduced in the hoisting process.
Further, S5 specifically includes:
judging whether a transport trolley moves under the driving of the steel column 3;
if so, fixing the moving transport trolley until the steel column is lifted to a set height.
During the lifting process, the lifted steel column 3 may be in an inclined state during the lifting process, as shown in fig. 3, the steel column 3 is in an inclined state of front to back, and the tail end of the steel column 3 has a forward pressure F on the second transportation trolley 2, so as to push the second transportation trolley 2 to move forward. After discovering second travelling bogie 2 and being promoted by steel column 3, fix second travelling bogie 2, if the in-process inclination degree increase that steel column 3 ceaselessly rises, the tail end of steel column 3 can slide on second travelling bogie 2, and can not as shown in figure 4 promote second travelling bogie 2 forward the back contact and rub floor 4 of travelling bogie below, can effectively separate steel column 3 and floor 4 at the in-process that lifts by crane, avoid taking place the striking damage between steel column 3 and the floor 4.
Further, whether a transport trolley moves under the driving of the steel column 3 is judged, and the method specifically comprises the following steps: and judging whether the transport trolley moves under the driving of the steel column 3 according to the detection result of the encoder connected to the wheel shaft of the transport trolley.
When the wheel shaft of the transport trolley rotates, the encoder on the wheel shaft can generate a signal, so that the motion of the transport trolley can be accurately and timely judged.
In addition, the encoder can be electrically connected to the controller, the controller comprises an alarm unit, and when the encoder generates a signal, the alarm unit gives an alarm to prompt the corresponding transport trolley to move.
Further, in S3, the placing the steel column 3 above the first transportation trolley 1 and the second transportation trolley 2 specifically includes:
in the set transport direction, the steel column 3 is placed on the first transport trolley 1 and the second transport trolley 2 in such a manner that the tail end of the steel column is aligned with the tail end of the second transport trolley 2 and the head end of the steel column exceeds the head end of the first transport trolley 1.
After the steel column 3 is placed on the transportation trolley, at the initial moment of applying forward acting force to the transportation trolley, if the acting force is not well controlled and large acting force is applied, relative sliding between the steel column 3 and the transportation trolley is possible, and based on the initial position relation among the steel column 3, the first transportation trolley 1 and the second transportation trolley 2, even if the steel column 3 slightly slides backwards relative to the transportation trolley, all parts of the transportation trolley in the set transportation direction can be guaranteed to be used for bearing the trolley, and the first transportation trolley 1 cannot protrude forwards out of the steel column 3.
Further, in S2, selecting a transportation cart according to the model parameter specifically includes:
two identical transport trolleys are selected to be used as a first transport trolley 1 and a second transport trolley 2 respectively according to the gravity of the steel column 3 and the bearing capacity of each wheel of the transport trolleys, and the total bearing capacity of all wheels of the first transport trolley 1 and the second transport trolley 2 is larger than the gravity of the steel column 3. The load-bearing capacity of each carriage can be greater than the weight of the steel column 3.
Through selecting for use two the same travelling bogie, then the gravity of steel column 3 can be shared by two travelling bogie spare uniformly, avoids two dolly bearing capacity disparity great and the problem that single dolly damaged appears in the transportation.
Further, S3 specifically includes:
and aligning the center line of the steel column 3 extending along the set transportation direction with the set center line of the transportation trolley and placing the center line on a supporting plate 6 of the transportation trolley.
Wherein, the set central lines of the two transport trolleys are arranged in a collinear way along the set transport direction. The wheels on each transport trolley are arranged in pairs, the paired wheels are symmetrically arranged on two sides of the set central line, and two side baffles 5 which are symmetrical relative to the set central line are arranged on the supporting plate 6 of the transport trolley.
Specifically, as shown in fig. 1 and 2, each transport trolley is provided with two pairs of wheels which are small-diameter and large-width wheels, and the carrying capacity and the anti-overturning capacity are strong. The wheels can swing relative to the wheel shafts to steer, and specifically can be universal wheels. Through two dollies bearing steel column 3, steel column 3 turns to the flexibility better.
The steel column 3 is aligned to the center of the transport trolley to be placed, the steel column 3 can keep equal distance with the side baffles 5 on the two sides of the steel column in the horizontal direction, collision with the side baffles 5 is avoided, in addition, each tire of the transport trolley is uniformly loaded, and the transport trolley can be prevented from overturning relative to an axis parallel to the set transport direction.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The method for transporting the lower steel column of the trestle provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (6)
1. A method for transporting lower steel columns of trestles is characterized by comprising the following steps:
receiving model parameters of a steel column (3), wherein the model parameters comprise the weight of the steel column (3) and the length value of the steel column along a set transportation direction;
selecting transport trolleys according to the model parameters, wherein the transport trolleys comprise a first transport trolley (1) and a second transport trolley (2), and the total length of the first transport trolley (1) and the second transport trolley (2) in the set transport direction is not less than 2/3 of the length value of the steel column;
placing the steel column (3) above the first transport trolley (1) and the second transport trolley (2), wherein the first transport trolley (1) is positioned in front of the second transport trolley (2) in the set transport direction at intervals;
the first transport trolley (1) is pulled forwards along the set transport direction, and the second transport trolley (2) is pushed forwards until the steel column (3) moves to a set lifting station;
and hoisting the steel column (3).
2. Trestle lower steel column transportation method according to claim 1, wherein said hoisting of said steel column (3) comprises:
judging whether a transport trolley moves under the driving of the steel column (3);
if so, fixing the moving transport trolley until the steel column is lifted to a set height.
3. The method for transporting lower steel columns of trestle bridges according to claim 2, wherein the step of judging whether a transport trolley moves under the driving of the steel column (3) specifically comprises the following steps:
and judging whether the transport trolley moves under the driving of the steel column (3) according to the detection result of the encoder connected to the wheel shaft of the transport trolley.
4. Method for transporting lower trestle steel columns according to claim 1, characterized in that said placing of said steel columns (3) above said first carriage (1) and said second carriage (2) comprises:
and in the set transportation direction, the steel column (3) is placed above the first transportation trolley (1) and the second transportation trolley (2) in a mode that the tail end of the steel column is aligned with the tail end of the second transportation trolley (2) and the head end of the steel column exceeds the head end of the first transportation trolley (1).
5. The method for transporting lower steel columns of a trestle according to claim 1, wherein the selecting of the transport trolley according to the model parameters comprises:
selecting two identical transport trolleys as the first transport trolley (1) and the second transport trolley (2) according to the gravity of the steel column (3) and the bearing capacity of each wheel of the transport trolleys, wherein the total bearing capacity of all wheels of the first transport trolley (1) and the second transport trolley (2) is larger than the gravity of the steel column (3).
6. Method for transporting lower trestle steel columns according to claim 1, characterized in that said placing of said steel columns (3) above said first carriage (1) and said second carriage (2) comprises:
placing the center line of the steel column (3) extending along the set transportation direction on a supporting plate (6) of the transportation trolley in alignment with the set center line of the transportation trolley;
the set central lines of the two transport trolleys are arranged in a collinear manner along the set transport direction;
the wheels on each transport trolley are arranged in pairs, the wheels in pairs are symmetrically arranged on two sides of the set central line, and two side baffles (5) which are symmetrical relative to the set central line are arranged on the supporting plate (6) of the transport trolley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911379393.0A CN111021748A (en) | 2019-12-27 | 2019-12-27 | Method for transporting lower steel column of trestle bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911379393.0A CN111021748A (en) | 2019-12-27 | 2019-12-27 | Method for transporting lower steel column of trestle bridge |
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| Publication Number | Publication Date |
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| CN111021748A true CN111021748A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911379393.0A Pending CN111021748A (en) | 2019-12-27 | 2019-12-27 | Method for transporting lower steel column of trestle bridge |
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| CN204674641U (en) * | 2015-04-21 | 2015-09-30 | 山东科技大学 | A kind of mine individual hydraulic prop conveying arrangement |
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| CN106567565A (en) * | 2016-10-19 | 2017-04-19 | 中建三局安装工程有限公司 | Method for installing super-long warehouse plates |
| CN207944728U (en) * | 2018-03-08 | 2018-10-09 | 中国五冶集团有限公司 | The circle haul of platen installation is seen for venue |
| CN207955714U (en) * | 2018-02-13 | 2018-10-12 | 青岛青房建安集团有限公司 | A kind of transport vehicle applied to construction site |
| JP2019218790A (en) * | 2018-06-21 | 2019-12-26 | 有限会社二瓶ガス圧接工業 | Reinforcement bar holder, reinforcement bar lifting device using the same, and installation method of reinforcement bar joint |
-
2019
- 2019-12-27 CN CN201911379393.0A patent/CN111021748A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204674641U (en) * | 2015-04-21 | 2015-09-30 | 山东科技大学 | A kind of mine individual hydraulic prop conveying arrangement |
| CN204715774U (en) * | 2015-05-28 | 2015-10-21 | 王英春 | Multi-functional revolution transport vehicle |
| CN106567565A (en) * | 2016-10-19 | 2017-04-19 | 中建三局安装工程有限公司 | Method for installing super-long warehouse plates |
| CN207955714U (en) * | 2018-02-13 | 2018-10-12 | 青岛青房建安集团有限公司 | A kind of transport vehicle applied to construction site |
| CN207944728U (en) * | 2018-03-08 | 2018-10-09 | 中国五冶集团有限公司 | The circle haul of platen installation is seen for venue |
| JP2019218790A (en) * | 2018-06-21 | 2019-12-26 | 有限会社二瓶ガス圧接工業 | Reinforcement bar holder, reinforcement bar lifting device using the same, and installation method of reinforcement bar joint |
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