CN112144408A - Construction method for building assembled trestle - Google Patents
Construction method for building assembled trestle Download PDFInfo
- Publication number
- CN112144408A CN112144408A CN202011002060.9A CN202011002060A CN112144408A CN 112144408 A CN112144408 A CN 112144408A CN 202011002060 A CN202011002060 A CN 202011002060A CN 112144408 A CN112144408 A CN 112144408A
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- construction
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- trestle
- steel pipe
- bailey
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
Abstract
The invention provides an assembly trestle building construction method, and relates to the technical field of civil engineering. The construction method for building the fabricated trestle comprises the following steps: s1, preparing construction; s2, pile position measurement lofting; s3, pile sinking construction; s4, installing a pile top transverse distribution beam; s5, constructing the Bailey beam; s6, constructing the section steel distribution beam and the bridge deck system; and S7, installing bridge deck auxiliary projects. The construction method designed by the invention has simple steps and convenient operation, and can be used for assembling all the parts before construction and then directly installing the parts in sequence, thereby saving a large amount of construction time, greatly improving the construction efficiency, basically realizing the whole disassembly and recovery of the trestle after the use is finished, and not needing to destroy the original structure, so that the trestle can be used for multiple times, and greatly saving the construction cost.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a construction method for building an assembled trestle.
Background
The trestle is a bridge building for the locomotive vehicle to go to the ferry, is composed of bridge piers, abutment platforms and steel beams, is a temporary bridge facility built for transporting materials, equipment and personnel in civil engineering, and is divided into a wood trestle and a steel trestle according to the adopted materials. In the construction of highways, many construction sites require construction to temporary trestles.
The existing trestle is mostly formed by pouring reinforced concrete, the method for building the trestle consumes time and labor, and is troublesome to remove after the trestle is used, great damage can be caused to the trestle in the process of removal, construction cost is increased, and therefore the construction method for building the assembly trestle is required to be designed to improve the current situation.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an assembly type trestle building construction method, which solves the problems that the construction of the trestle at present consumes time and labor, and is high in cost and inconvenient to dismantle.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a construction method for building an assembly trestle comprises the following steps:
s1, construction preparation
Completely preparing equipment and materials required by trestle construction, construction proofs, construction drawings and some pre-construction tests;
s2, pile position measurement lofting
Calculating the coordinate position of each steel pipe pile according to the construction plane layout, then well positioning pile sites at construction points, initially measuring the steel pipe piles by using a GPS, and controlling the steel pipe pile positions by using a total station for monitoring in the whole process;
s3, pile sinking construction
The processed steel pipe pile, the crawler crane, the vibration hammer, the flat trailer and the truck crane are transported to a steel pipe pile site for pile sinking construction, the vibration hammer is matched with the crawler crane for pile sinking construction, the penetration depth of the steel pipe pile is based on the actual insertion depth, a pile length design method and a penetration depth method are adopted for double control in the construction process, the penetration depth is 10cm/30s, and the steel pipe pile must penetrate through a silt layer and penetrate into a round gravel layer;
s4, installing transverse distribution beams on pile tops
After the construction of the steel pipe piles is finished, after the deflection and the soil penetration depth of the piles are checked to be consistent with the design, a parallel connection and an inclined strut are arranged among the steel pipe piles to enable the steel pipe piles to be integrated, and meanwhile, brackets and components are welded on the pile tops according to the design size, the bottom surfaces are ensured to be flat, and distribution beams are hung and fixed with the steel pipe piles in a welding mode;
s5. Bailey beam construction
(1) Measuring and lofting on a pile top cross beam, and determining the accurate position of the bailey truss;
(2) the assembled Bailey main truss sheets are transported to a construction point;
(3) dividing every 3 bailey pieces into one group, installing twice, firstly hoisting 2 connected rows of bailey by a crawler crane, firmly binding the bailey on a cross beam after accurately positioning, then welding a limiter, then installing the 3 rd row of bailey, and simultaneously connecting the 3 rd row of bailey with the installed flower stand with the interval of 3 m;
(4) and so on to finish the installation of other Bailey beams;
s6. construction of section steel distribution beam and bridge deck system
(1) Mounting the section steel distribution beams by using hoisting equipment, wherein the distance between I20a I-shaped steel distribution beams at the upper end of the Bailey beam is 25 cm;
(2) carrying out bridge deck system construction after the upper structure is installed, hoisting a bridge deck by using a crawler crane, wherein a trestle deck adopts an 8mm embossed deck, the deck is assembled on a processing site according to pieces, the deck is hoisted integrally on the site, and the size of each block is determined on the site by site construction operation;
s7, bridge deck auxiliary engineering installation
When the construction of the main structure of the trestle and the working platform is shifted to the next span construction, the construction of the bridge deck auxiliary engineering of the trestle and the working platform is completed, wherein the bridge deck auxiliary engineering mainly comprises guardrail installation, bridge deck anti-slip strip welding, a cable pipeline, a water supply pipeline, a safety warning lamp, a life buoy and a high-power loudspeaker.
Preferably, in the pile sinking process in step S3, the perpendicularity of the steel pipe pile is measured and monitored by a total station, so as to ensure the pile position quality.
Preferably, the first steel pipe pile in the pile sinking process of step S3 is subjected to a single-pile bearing capacity test of the steel pipe pile.
Preferably, the specific installation process of the parallel connection and the inclined strut in the step S4 is as follows: and (3) suspending the horizontal connection and the bridging by using a crawler crane, welding the horizontal connection and the bridging by using an electric welder after the horizontal connection and the bridging are in place, timely checking the weld joint quality by a field technician, and erecting a pile top transverse distribution beam after the welding quality is qualified.
Preferably, the distribution beam mounting process in step S4 is as follows: the distribution beam is processed in the field in advance, the crawler crane is used for hoisting to the corresponding position for installation, the beam is simply and fixedly hoisted to the measuring lofting position, an electric welder welds the bracket according to the measuring lofting position, a technician inspects the qualified state and welds the beam on the bracket, and the beam is placed in a groove opening at the top of the steel pipe pile.
Preferably, in the step S6, the face layer of the bridge deck and the contact point with the transverse distribution beam are all fully welded, the quality of the welding seam meets the requirement, the face layer is provided with 2cm expansion joints every 12m, and the expansion joints are connected by steel plates.
(III) advantageous effects
The invention provides an assembly trestle building construction method. The method has the following beneficial effects:
1. according to the construction method, large parts of the trestle are directly spliced before construction, the parts are directly hung to the mounting point through the hoisting equipment in sequence during construction, and then the parts are welded and mounted in sequence, so that the construction speed of the trestle is greatly improved, and a large amount of time and labor are saved.
2. The trestle is arranged at the upper end of the steel pipe pile, and the steel pipe pile is directly inserted into the foundation, so that the original pouring construction method is replaced, the original structure is not required to be damaged when the trestle is dismantled after the trestle is used, the dismantling process is convenient, and the construction cost is saved.
Drawings
Fig. 1 is a process flow chart of the construction method for building the fabricated trestle provided by the invention.
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.
Example (b):
as shown in fig. 1, an embodiment of the present invention provides an assembly trestle building construction method, including the following steps:
s1, construction preparation
Completely preparing equipment and materials required by trestle construction, construction proofs, construction drawings and some pre-construction tests;
s2, pile position measurement lofting
Calculating the coordinate position of each steel pipe pile according to a construction plane layout diagram, then positioning pile sites at construction points, initially measuring the steel pipe piles by using a GPS, controlling the steel pipe pile positions by using a full-process monitoring method through a total station, and simultaneously measuring and monitoring the verticality of the steel pipe piles through the total station in the pile sinking process to ensure the pile position quality;
s3, pile sinking construction
The method comprises the following steps of (1) carrying out pile sinking construction on a machined steel pipe pile, a 50t crawler crane, a DZ60 vibratory hammer, a flat trailer and a truck crane to a steel pipe pile site, carrying out pile sinking construction by matching the DZ60 vibratory hammer with the 50t crawler crane, wherein the steel pipe pile is constructed in a segmented butt joint mode, the soil penetration depth of the steel pipe pile is based on the actual insertion depth, the pile length and the penetration depth are designed to be subjected to double control in the construction process, the penetration depth is 10cm/30s, the steel pipe pile must penetrate through a silt layer and go deep into a round gravel layer, and the first steel pipe pile is subjected to a single-pile bearing capacity test;
s4, installing transverse distribution beams on pile tops
After the construction of steel-pipe pile was accomplished, the skew of inspection stake and the back of burying the degree of depth and design conform, install between the steel-pipe pile that flat antithetical couplet, bracing make it become whole, at pile bolck according to design size welding bracket and component simultaneously to guarantee that the bottom surface is level and smooth, hang and put the distributive girder and with steel-pipe pile welded fastening, concrete flow is: and (4) suspending the horizontal connection and the bridging with a 50t crawler crane, and welding the horizontal connection and the bridging by an electric welder after the horizontal connection and the bridging are in place. A field technician checks the quality of the welding seam in time, and a pile top transverse distribution beam is erected after the welding seam is qualified; cutting the top of the steel pipe pile to be flat, machining a distribution beam in the field in advance, hoisting the distribution beam to a corresponding position by using a 50t crawler crane for installation, hoisting a cross beam to a measurement lofting position for simple and fixed, welding a bracket by an electric welder according to the measurement lofting position, welding the cross beam on the bracket after the technician passes the inspection, wherein all welding seams meet the design requirement, and the cross beam is placed in a notch of the top of the steel pipe pile;
s5. Bailey beam construction
(1) Measuring and lofting on a pile top cross beam, and determining the accurate position of the bailey truss;
(2) the assembled Bailey main truss sheets are transported to a construction point;
(3) dividing every 3 bailey pieces into one group, installing twice, firstly hoisting 2 connected rows of bailey by a crawler crane, firmly binding the bailey on a cross beam after accurately positioning, then welding a limiter, then installing the 3 rd row of bailey, and simultaneously connecting the 3 rd row of bailey with the installed flower stand with the interval of 3 m;
(4) and so on to finish the installation of other Bailey beams;
s6. construction of section steel distribution beam and bridge deck system
(1) Mounting the section steel distribution beams by using hoisting equipment, wherein the distance between I20a I-shaped steel distribution beams at the upper end of the Bailey beam is 25 cm;
(2) carrying out bridge deck system construction after the upper structure is installed, hoisting bridge decks by using a crawler crane, wherein the deck layer of the trestle adopts 8mm embossed decks, the deck layer is assembled on a processing site according to pieces, the deck layer is integrally hoisted on the site, the size of each block is determined on the site by site construction operation, the deck layer and the contact point with the transverse distribution beam are fully welded, the quality of welding seams meets requirements, expansion joints of 2cm are arranged on the deck layer every 12m, and the expansion joints are connected by using steel plates;
s7, bridge deck auxiliary engineering installation
When the construction of the main structure of the trestle and the working platform is shifted to the next span construction, the construction of the bridge deck auxiliary engineering of the trestle and the working platform is completed, wherein the bridge deck auxiliary engineering mainly comprises guardrail installation, bridge deck anti-slip strip welding, a cable pipeline, a water supply pipeline, a safety warning lamp, a life buoy and a high-power loudspeaker.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The construction method for constructing the fabricated trestle is characterized by comprising the following steps of: the method comprises the following steps:
s1, construction preparation
Completely preparing equipment and materials required by trestle construction, construction proofs, construction drawings and some pre-construction tests;
s2, pile position measurement lofting
Calculating the coordinate position of each steel pipe pile according to the construction plane layout, then well positioning pile sites at construction points, initially measuring the steel pipe piles by using a GPS, and controlling the steel pipe pile positions by using a total station for monitoring in the whole process;
s3, pile sinking construction
The processed steel pipe pile, the crawler crane, the vibration hammer, the flat trailer and the truck crane are transported to a steel pipe pile site for pile sinking construction, the vibration hammer is matched with the crawler crane for pile sinking construction, the penetration depth of the steel pipe pile is based on the actual insertion depth, a pile length design method and a penetration depth method are adopted for double control in the construction process, the penetration depth is 10cm/30s, and the steel pipe pile must penetrate through a silt layer and penetrate into a round gravel layer;
s4, installing transverse distribution beams on pile tops
After the construction of the steel pipe piles is finished, after the deflection and the soil penetration depth of the piles are checked to be consistent with the design, a parallel connection and an inclined strut are arranged among the steel pipe piles to enable the steel pipe piles to be integrated, and meanwhile, brackets and components are welded on the pile tops according to the design size, the bottom surfaces are ensured to be flat, and distribution beams are hung and fixed with the steel pipe piles in a welding mode;
s5. Bailey beam construction
(1) Measuring and lofting on a pile top cross beam, and determining the accurate position of the bailey truss;
(2) the assembled Bailey main truss sheets are transported to a construction point;
(3) dividing every 3 bailey pieces into one group, installing twice, firstly hoisting 2 connected rows of bailey by a crawler crane, firmly binding the bailey on a cross beam after accurately positioning, then welding a limiter, then installing the 3 rd row of bailey, and simultaneously connecting the 3 rd row of bailey with the installed flower stand with the interval of 3 m;
(4) and so on to finish the installation of other Bailey beams;
s6. construction of section steel distribution beam and bridge deck system
(1) Mounting the section steel distribution beams by using hoisting equipment, wherein the distance between I20a I-shaped steel distribution beams at the upper end of the Bailey beam is 25 cm;
(2) carrying out bridge deck system construction after the upper structure is installed, hoisting a bridge deck by using a crawler crane, wherein a trestle deck adopts an 8mm embossed deck, the deck is assembled on a processing site according to pieces, the deck is hoisted integrally on the site, and the size of each block is determined on the site by site construction operation;
s7, bridge deck auxiliary engineering installation
When the construction of the main structure of the trestle and the working platform is shifted to the next span construction, the construction of the bridge deck auxiliary engineering of the trestle and the working platform is completed, wherein the bridge deck auxiliary engineering mainly comprises guardrail installation, bridge deck anti-slip strip welding, a cable pipeline, a water supply pipeline, a safety warning lamp, a life buoy and a high-power loudspeaker.
2. The assembly type trestle building construction method according to claim 1, which is characterized in that: in the pile sinking process in the step S3, the perpendicularity of the steel pipe pile is measured and monitored through a total station instrument, and the pile position quality is guaranteed.
3. The assembly type trestle building construction method according to claim 1, which is characterized in that: and performing a single-pile bearing capacity test on the first steel pipe pile in the pile sinking process of the step S3.
4. The assembly type trestle building construction method according to claim 1, which is characterized in that: the specific installation process of the parallel connection and the inclined strut in the step S4 is as follows: and (3) suspending the horizontal connection and the bridging by using a crawler crane, welding the horizontal connection and the bridging by using an electric welder after the horizontal connection and the bridging are in place, timely checking the weld joint quality by a field technician, and erecting a pile top transverse distribution beam after the welding quality is qualified.
5. The assembly type trestle building construction method according to claim 1, which is characterized in that: the distribution beam mounting process in step S4 is as follows: the distribution beam is processed in the field in advance, the crawler crane is used for hoisting to the corresponding position for installation, the beam is simply and fixedly hoisted to the measuring lofting position, an electric welder welds the bracket according to the measuring lofting position, a technician inspects the qualified state and welds the beam on the bracket, and the beam is placed in a groove opening at the top of the steel pipe pile.
6. The assembly type trestle building construction method according to claim 1, which is characterized in that: and in the step S6, the surface layer of the bridge deck and the contact point of the bridge deck and the transverse distribution beam are fully welded, the quality of the welding seam meets the requirement, the surface layer is provided with 2cm expansion joints every 12m, and the expansion joints are connected by steel plates.
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| CN202011002060.9A CN112144408A (en) | 2020-09-22 | 2020-09-22 | Construction method for building assembled trestle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047155A (en) * | 2021-03-24 | 2021-06-29 | 中铁十六局集团有限公司 | Bridge engineering construction method |
| CN113106873A (en) * | 2021-04-14 | 2021-07-13 | 中铁二局第一工程有限公司 | Standardized construction system of large-span steel trestle |
| CN114908673A (en) * | 2022-05-16 | 2022-08-16 | 中铁四局集团第一工程有限公司 | Construction method of deepwater foundation trestle and drilling platform |
| CN117071557A (en) * | 2023-08-07 | 2023-11-17 | 保利长大工程有限公司 | Tubular pile sinking construction method of water trestle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113047155A (en) * | 2021-03-24 | 2021-06-29 | 中铁十六局集团有限公司 | Bridge engineering construction method |
| CN113106873A (en) * | 2021-04-14 | 2021-07-13 | 中铁二局第一工程有限公司 | Standardized construction system of large-span steel trestle |
| CN114908673A (en) * | 2022-05-16 | 2022-08-16 | 中铁四局集团第一工程有限公司 | Construction method of deepwater foundation trestle and drilling platform |
| CN114908673B (en) * | 2022-05-16 | 2023-10-20 | 中铁四局集团第一工程有限公司 | Deep water foundation trestle and drilling platform construction method |
| CN117071557A (en) * | 2023-08-07 | 2023-11-17 | 保利长大工程有限公司 | Tubular pile sinking construction method of water trestle |
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Application publication date: 20201229 |