CN115186349A - Method and system for building bridge model based on BIM technology - Google Patents
Method and system for building bridge model based on BIM technology Download PDFInfo
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Abstract
The invention provides a method and a system for constructing a bridge model based on a BIM technology, wherein the method comprises the following steps: constructing a large temporary facility model; establishing a bridge structure framework by adopting Midas Civil software based on a construction drawing, deriving bridge structure framework and bridge structure parameters, carrying out format conversion, and inputting the parameters into a BIM (building information modeling) model to serve as a basic framework and framework parameters; building a trestle BIM submodel based on the bridge structure framework in the BIM model, building a cofferdam BIM submodel based on the trestle BIM submodel, carrying out solid modeling on the cofferdam structure, and measuring the size and the spatial position of a detail component in the cofferdam BIM submodel; constructing a main bridge BIM sub-model on the upper part of the bridge structure framework based on the bridge structure framework; and (5) performing construction simulation.
Description
Technical Field
The invention relates to the technical field of bridge model construction based on a BIM (building information modeling) technology, in particular to a method and a system for constructing a bridge model based on the BIM technology.
Background
The span of a main bridge of the Changqing yellow river grand bridge of Zhengji railway is (108 +4 × 216+ 108m), the Changqing yellow river grand bridge is a first long-united multi-tower large-span cable-stayed bridge with the speed per hour of 350km in China, fills the domestic blank, and is the only controllable project of the whole Zhengji railway (Shandong segment). The glued continuous beam related to the bridge approach of the Changqing yellow river super bridge is a non-wet seam glued continuous beam structure with the largest railway scale in China at present.
Engineering features and difficulties include:
the main bridge is a multi-tower cable-stayed bridge of a kilometric long-link ballastless track of a first 350km/h high-speed railway in the world and is also the only controllable project in the whole Zhengjie high-speed railway work period.
The main bridge construction technology difficulty is as follows:
(1) Pile foundation grow up: the main bridge pile foundations are all large-diameter deep-hole drilled piles (the pile diameter is 2m, the maximum hole depth is 142 m), particularly the 249 pier riverbed surface layer is deposited silt, and the plasticity is poor; the cementing layer, the sand layer and the silty clay layer are alternately arranged within the range of 30m of the pile tip, the geological complex pore-forming is difficult, the concrete pouring volume is large, the settlement observation period is long, and the like.
(2) A bearing platform: the foundation pits of the main bridge bearing platform are all deep foundation pits with the depth of more than 11 meters, the underground water level is high, the geological condition is poor, particularly, the No. 249 water pier is located in the main river channel of the yellow river, the excavation depth is 16m, the water flow change is influenced by upstream water and sand adjustment and flood season, the short-time water level and flow rate change is obvious, and the river bed is scoured greatly. The 5m range of the bottom of the cofferdam is hard plastic, dry strength is medium powder clay, and foundation pit excavation construction organization difficulty is large.
(3) Main beam of the short-tower cable-stayed bridge: the main beam is a multi-tower long-span kilometer long-connected concrete short-tower cable-stayed bridge, the self weight of the bridge is large, and the vertical residual creep deformation of the beam is controlled within 20 mm. By adopting a cantilever casting method, the maximum cantilever casting section is 8m, the weight of a single section is 690t, the cantilever casting linearity control standard is high, the system conversion is complex, the construction period is short, and the safety risk is high.
The 3 x 56m section prefabricated assembled continuous beam is a 350km/h high-speed rail span-by-span full-rubber assembled continuous beam bridge which is firstly constructed in a large scale in the world, and a CRTSIII type slab ballastless track is adopted; a new technology of full-glue splicing and a new structure of a shear key are explored for a new technology of high-speed rail construction. The construction difficulty of the bridge is as follows:
(1) In the bridge 22, 19 links are connected on a circular curve, 2 links are connected on a gentle curve, 1 link is connected on a gentle straight line, and the difficulty in controlling the prefabrication of the beam type is high.
(2) The full-connection glue splicing has no wet joint, and has high requirements on the prefabrication precision of the beam and the linear control of splicing.
(3) The experience and the specification of the reference which can be borrowed at present are few.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a method and a system for constructing a bridge model based on the BIM technology.
The technical scheme adopted by the invention is as follows:
the method for constructing the bridge model based on the BIM technology comprises the following steps:
step 1): establishing a temporary facility model by adopting Revit software, and setting the spatial structure relationship and the time flow relationship of each functional area in the temporary facility model to construct the continuous construction auxiliary design of the bridge;
step 2): building a bridge structure framework by using Midas Civil software based on a construction drawing, and performing stress analysis in the Midas Civil software based on the bridge structure framework to verify the structure framework; exporting a bridge structure framework and bridge structure parameters, carrying out format conversion, and inputting the converted parameters into a BIM (building information modeling) model to serve as a basic framework and framework parameters;
step 3): building a trestle BIM submodel based on the bridge structure framework in the BIM model, building a cofferdam BIM submodel based on the trestle BIM submodel, carrying out solid modeling on the cofferdam structure, and measuring the size and the spatial position of a detail component in the cofferdam BIM submodel; constructing a main bridge BIM sub-model on the upper part of the bridge structure framework based on the bridge structure framework;
step 4): compiling foundation framework construction files based on foundation frameworks and framework parameters, compiling trestle construction files based on a trestle BIM submodel, compiling cofferdam construction files based on a cofferdam BIM submodel and compiling main bridge construction files based on a main bridge BIM submodel; and respectively inputting the bridge structure framework and a foundation framework construction file corresponding to the bridge structure framework, a trestle BIM sub-model and a trestle construction file corresponding to the trestle BIM sub-model, a cofferdam BIM sub-model and a cofferdam construction file corresponding to the cofferdam BIM sub-model, a main bridge BIM sub-model and a main bridge BIM sub-model main bridge construction file into a simulation model for simulation, and performing construction simulation according to the simulation model based on the foundation parts constructed by the large temporary facility model.
In the step 1), modeling simulation construction is carried out on a steel bar processing area, a binding area, a beam manufacturing area, a maintenance area, a beam storage area and a beam lifting area of a beam yard in a large temporary facility model according to the construction requirements of continuous beams, and the spatial structure relation and the time flow relation of the processing area, the binding area, the beam manufacturing area, the maintenance area, the beam storage area and the beam lifting area are determined.
In the step 4), the foundation framework construction file, the trestle construction file, the cofferdam construction file and the main bridge construction file correspond to the time flow relation in the step 1).
The invention also provides a system for constructing a bridge model based on the BIM technology, which comprises the following steps:
setting a temporary facility model for establishing the temporary facility model by Revit software, and setting the spatial structure relationship and the time flow relationship of each functional area in the temporary facility model to construct a bridge continuous construction auxiliary design;
the basic framework construction module is used for establishing a bridge structure framework on a construction drawing by adopting Midas Civil software, and carrying out stress analysis in the Midas Civil software based on the bridge structure framework so as to verify the structure framework; exporting a bridge structure framework and bridge structure parameters, carrying out format conversion, and inputting the converted parameters into a BIM (building information modeling) model as a basic framework and framework parameters;
the bridge BIM submodel is established in the BIM model on the basis of the bridge structure framework;
the cofferdam BIM sub-model is constructed based on the trestle BIM sub-model; carrying out solid modeling on the cofferdam structure, and measuring the size and the spatial position of a detail component in a cofferdam BIM submodel;
the main bridge BIM submodel is constructed on the upper part of the bridge structure framework based on the bridge structure framework;
the simulation module is used for compiling a foundation framework construction file based on a foundation framework and framework parameters, a trestle bridge construction file based on a trestle BIM submodel, a cofferdam construction file based on a cofferdam BIM submodel and a main bridge construction file based on a main bridge BIM submodel; and respectively inputting the bridge structure framework and a foundation framework construction file corresponding to the bridge structure framework, a trestle BIM sub-model and a trestle construction file corresponding to the trestle BIM sub-model, a cofferdam BIM sub-model and a cofferdam construction file corresponding to the cofferdam BIM sub-model, a main bridge BIM sub-model and a main bridge BIM sub-model main bridge construction file into a simulation model for simulation, and performing construction simulation according to the simulation model based on the foundation parts constructed by the large temporary facility model.
Further, the basic skeleton building module comprises:
the Midas Civil software is used for establishing a structural framework in the Midas Civil software based on a construction drawing, and performing stress analysis in the Midas Civil software based on the structural framework to verify the structural framework;
the deriving unit is used for deriving the structural skeleton and skeleton parameters corresponding to the structural skeleton from the Midas Civil software;
and the importing unit is used for converting the format of the structural framework and the framework parameters corresponding to the structural framework to form a basic framework and framework parameters accepted by the BIM, and importing the basic framework and the framework parameters into the BIM.
In the application, the design and construction integration application based on the BIM is adopted, the BIM design standard and the construction application standard are determined, and the refined BIM model of the whole structure is established. A BIM model of a design end is carried from a construction end, BIM modeling is adopted for auxiliary design, modeling simulation construction is carried out on six functional areas such as a reinforcing steel bar processing area, a binding area, a beam manufacturing area (a long and short line method is combined with a pedestal), a maintenance area, a beam storage area (128 sections), a beam lifting area and the like of a beam yard according to the construction requirements of continuous beams, and the spatial structure relation and the time flow relation of each functional area are visually analyzed.
Drawings
The invention is illustrated and described only by way of example and not by way of limitation in the scope of the invention as set forth in the following drawings, in which:
FIG. 1 is a diagram of the method of the present invention;
fig. 2 is a schematic diagram of the system framework of the present invention.
Detailed Description
In order to make the objects, technical solutions, design methods, and advantages of the present invention more apparent, the present invention will be further described in detail by specific embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 2, the present invention provides a system for constructing a bridge model based on BIM technology, including:
setting a temporary facility model for establishing the temporary facility model by adopting Revit software, and setting the spatial structure relationship and the time flow relationship of each functional area in the temporary facility model to construct the continuous construction auxiliary design of the bridge;
the infrastructure construction module is used for establishing a bridge structure framework in a construction drawing by adopting Midas Civil software, and carrying out stress analysis in the Midas Civil software based on the bridge structure framework so as to verify the structure framework; exporting a bridge structure framework and bridge structure parameters, carrying out format conversion, and inputting the converted parameters into a BIM (building information modeling) model to serve as a basic framework and framework parameters;
the bridge BIM submodel is established in the BIM model on the basis of the bridge structure framework;
the cofferdam BIM submodel is constructed based on the trestle BIM submodel; carrying out solid modeling on the cofferdam structure, and measuring the size and the spatial position of a detail component in a cofferdam BIM submodel;
the main bridge BIM submodel is constructed on the upper part of the bridge structure framework based on the bridge structure framework;
the simulation module is used for compiling foundation framework construction files based on a foundation framework and framework parameters, compiling trestle construction files based on a trestle BIM submodel, compiling cofferdam construction files based on a cofferdam BIM submodel and compiling main bridge construction files based on a main bridge BIM submodel; and respectively inputting the bridge structure framework and a foundation framework construction file corresponding to the bridge structure framework, a trestle BIM sub-model and a trestle construction file corresponding to the trestle BIM sub-model, a cofferdam BIM sub-model and a cofferdam construction file corresponding to the cofferdam BIM sub-model, a main bridge BIM sub-model and a main bridge BIM sub-model main bridge construction file into a simulation model for simulation, and performing construction simulation according to the simulation model based on the foundation parts constructed by the large temporary facility model.
Further, the basic skeleton building module comprises:
the Midas Civil software is used for establishing a structural framework in the Midas Civil software based on a construction drawing, and performing stress analysis in the Midas Civil software based on the structural framework to verify the structural framework;
the deriving unit is used for deriving the structural skeleton and skeleton parameters corresponding to the structural skeleton from the Midas Civil software;
and the importing unit is used for converting the format of the structural framework and the framework parameters corresponding to the structural framework to form a basic framework and framework parameters accepted by the BIM model and importing the basic framework and the framework parameters into the BIM model.
In the application, the design and construction integration application based on the BIM is adopted, the BIM design standard and the construction application standard are determined, and the refined BIM model of the whole structure is established. A BIM model of a design end is carried from a construction end, BIM modeling is adopted for auxiliary design, modeling simulation construction is carried out on six functional areas such as a reinforcing steel bar processing area, a binding area, a beam manufacturing area (a long and short line method is combined with a pedestal), a maintenance area, a beam storage area (128 sections), a beam lifting area and the like of a beam yard according to the construction requirements of continuous beams, and the spatial structure relation and the time flow relation of each functional area are visually analyzed.
The invention also provides a method for constructing a bridge model based on the BIM technology, which comprises the following steps:
step 1): establishing a temporary facility model by adopting Revit software, and setting the spatial structure relationship and the time flow relationship of each functional area in the temporary facility model to construct the continuous construction auxiliary design of the bridge; the method comprises the following steps of carrying out auxiliary design by adopting BIM modeling, carrying out modeling simulation construction on six functional areas such as a steel bar processing area, a binding area, a beam manufacturing area (a long and short line method is combined with a pedestal), a maintenance area, a beam storage area (128 sections), a beam lifting area and the like of a beam yard according to the construction requirements of continuous beams, and visually analyzing the spatial structure relationship and the time flow relationship of each functional area;
step 2): building a bridge structure framework by using Midas Civil software based on a construction drawing, and performing stress analysis in the Midas Civil software based on the bridge structure framework to verify the structure framework; exporting a bridge structure framework and bridge structure parameters, carrying out format conversion, and inputting the converted parameters into a BIM (building information modeling) model as a basic framework and framework parameters;
step 3): building a trestle BIM submodel based on the bridge structure skeleton in a BIM model, building a cofferdam BIM submodel based on the trestle BIM submodel, performing solid modeling on a cofferdam structure, and measuring the size and the spatial position of a detail component in the cofferdam BIM submodel; constructing a main bridge BIM sub-model on the upper part of the bridge structure framework based on the bridge structure framework;
the engineering main bridge spans two banks of the yellow river, wherein the pier 248# is positioned on the south bank of the yellow river, the pier 249# is positioned in the river channel of the yellow river, and the piers 250#, 251#, and 252# are positioned on the north bank of the yellow river. In order to ensure the traffic of construction vehicles, a trestle passage crossing the yellow river needs to be built for auxiliary construction. And (4) building a BIM (building information modeling) model of the trestle by adopting Dasuo software, and carrying out engineering calculation and construction guidance. And (4) compiling a safe construction scheme of the trestle by comprehensive analysis and guiding field construction.
The main bridge 249# underwater pier is located in the main river channel of the yellow river, the excavation depth is 16m, the water flow change is influenced by upstream water and sand adjustment and flood season, the short-time water level and flow rate change is obvious, and the river bed is scoured greatly. The 5m range of the bottom of the cofferdam is hard plastic, medium powder clay in dry strength. The pier lower structure is difficult to construct and tight in construction period, and is a control node of the whole pipe section. And (4) establishing a BIM sub-model of the steel cofferdam by adopting Dasuo software, and comparing and selecting the scheme. And analyzing the advantages and disadvantages of the double-wall steel cofferdam and the lock catch steel pipe pile cofferdam from the aspects of safety, technology and economy, and finally selecting the lock catch steel pipe pile cofferdam for construction. The cofferdam is successfully bottomed, so that the cost is saved, and the construction period is shortened. Plays a key role in engineering construction. And (4) adopting a steel cofferdam BIM submodel to guide construction. The cofferdam structure is subjected to solid modeling, the size and the spatial position of detail components can be visually measured in the cofferdam BIM submodel, and the site construction can be conveniently and rapidly guided.
And step 4): compiling a foundation framework construction file based on a foundation framework and framework parameters, a trestle bridge construction file based on a trestle BIM submodel, a cofferdam construction file based on a cofferdam BIM submodel and a main bridge construction file based on a main bridge BIM submodel; and respectively inputting the bridge structure framework and foundation framework construction files corresponding to the bridge structure framework, trestle BIM submodels and trestle construction files corresponding to the trestle BIM submodels, cofferdam BIM submodels and cofferdam construction files corresponding to the cofferdam BIM submodels, main bridge BIM submodels and main bridge BIM submodels into a simulation model for simulation, and performing construction simulation according to the simulation model based on foundation parts constructed by a large temporary facility model.
A geometrical model and a construction process model of the main bridge are established through a BIM technology, so that real-time, interactive and vivid simulation is carried out on a construction scheme, and the construction scheme is verified, optimized and perfected. In the three-dimensional simulation operation of the construction process, the problems possibly encountered in the actual construction process are predicted, the phenomena of rework and resource waste are avoided and reduced in advance, the construction scheme is optimized, construction resources are reasonably configured, the construction cost is saved, the construction progress is accelerated, the construction quality is controlled, and the purpose of improving the construction efficiency is achieved.
In the method, the whole bridge splicing continuous beam construction process guidance animation is manufactured through simulation, the 4D bottom crossing of the whole bridge is realized, the construction process of section beam erection is simulated, the construction process is transparent, the progress is visual, the scene is vivid, and the key steps and the specific control key points of section beam erection are integrated.
In the step 4), the foundation framework construction file, the trestle construction file, the cofferdam construction file and the main bridge construction file correspond to the time flow relation in the step 1).
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or technical improvements to the market, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.
Claims (5)
1. The method for constructing the bridge model based on the BIM technology is characterized by comprising the following steps:
step 1): establishing a temporary facility model by adopting Revit software, and setting the spatial structure relationship and the time flow relationship of each functional area in the temporary facility model to construct the continuous construction auxiliary design of the bridge;
step 2): building a bridge structure framework by using Midas Civil software based on a construction drawing, and performing stress analysis in the Midas Civil software based on the bridge structure framework to verify the structure framework; exporting a bridge structure framework and bridge structure parameters, carrying out format conversion, and inputting the converted parameters into a BIM (building information modeling) model as a basic framework and framework parameters;
step 3): building a trestle BIM submodel based on the bridge structure skeleton in a BIM model, building a cofferdam BIM submodel based on the trestle BIM submodel, performing solid modeling on a cofferdam structure, and measuring the size and the spatial position of a detail component in the cofferdam BIM submodel; constructing a main bridge BIM sub-model on the upper part of the bridge structure framework based on the bridge structure framework;
step 4): compiling a foundation framework construction file based on a foundation framework and framework parameters, a trestle bridge construction file based on a trestle BIM submodel, a cofferdam construction file based on a cofferdam BIM submodel and a main bridge construction file based on a main bridge BIM submodel; and respectively inputting the bridge structure framework and foundation framework construction files corresponding to the bridge structure framework, trestle BIM submodels and trestle construction files corresponding to the trestle BIM submodels, cofferdam BIM submodels and cofferdam construction files corresponding to the cofferdam BIM submodels, main bridge BIM submodels and main bridge BIM submodels into a simulation model for simulation, and performing construction simulation according to the simulation model based on foundation parts constructed by a large temporary facility model.
2. The method for constructing the bridge model based on the BIM technology as claimed in claim 1, wherein in step 1), modeling simulation construction is performed on the steel bar processing area, the binding area, the beam making area, the maintenance area, the beam storage area and the beam lifting area of the beam yard in the temporary facility model according to the continuous beam construction requirements, and the spatial structure relationship and the time flow relationship of the processing area, the binding area, the beam making area, the maintenance area, the beam storage area and the beam lifting area are determined.
3. The method for constructing a bridge model based on the BIM technology as claimed in claim 1, wherein in step 4), the infrastructure construction file, the trestle construction file, the cofferdam construction file and the main bridge construction file are corresponded to the time flow relationship in step 1).
4. System based on BIM technique founds bridge model, its characterized in that includes:
setting a temporary facility model for establishing the temporary facility model by adopting Revit software, and setting the spatial structure relationship and the time flow relationship of each functional area in the temporary facility model to construct the continuous construction auxiliary design of the bridge;
the basic framework construction module is used for establishing a bridge structure framework on a construction drawing by adopting Midas Civil software, and carrying out stress analysis in the Midas Civil software based on the bridge structure framework so as to verify the structure framework; exporting a bridge structure framework and bridge structure parameters, carrying out format conversion, and inputting the converted parameters into a BIM (building information modeling) model as a basic framework and framework parameters;
the bridge BIM submodel is established in the BIM model on the basis of the bridge structure framework;
the cofferdam BIM sub-model is constructed based on the trestle BIM sub-model; carrying out solid modeling on the cofferdam structure, and measuring the size and the spatial position of a detail component in a cofferdam BIM submodel;
the main bridge BIM submodel is constructed on the upper part of the bridge structure framework based on the bridge structure framework;
the simulation module is used for compiling foundation framework construction files based on a foundation framework and framework parameters, compiling trestle construction files based on a trestle BIM submodel, compiling cofferdam construction files based on a cofferdam BIM submodel and compiling main bridge construction files based on a main bridge BIM submodel; and respectively inputting the bridge structure framework and foundation framework construction files corresponding to the bridge structure framework, trestle BIM submodels and trestle construction files corresponding to the trestle BIM submodels, cofferdam BIM submodels and cofferdam construction files corresponding to the cofferdam BIM submodels, main bridge BIM submodels and main bridge BIM submodels into a simulation model for simulation, and performing construction simulation according to the simulation model based on foundation parts constructed by a large temporary facility model.
5. The BIM technology-based bridge model building system of claim 4, wherein the basic skeleton building module comprises:
the Midas Civil software is used for establishing a structural framework in the Midas Civil software based on a construction drawing, and performing stress analysis in the Midas Civil software based on the structural framework to verify the structural framework;
the deriving unit is used for deriving the structural skeleton and skeleton parameters corresponding to the structural skeleton from the Midas Civil software;
and the importing unit is used for converting the format of the structural framework and the framework parameters corresponding to the structural framework to form a basic framework and framework parameters accepted by the BIM model and importing the basic framework and the framework parameters into the BIM model.
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