CN104715113A - Method and device for conducting construction simulation on steel truss arch bridge through BIM - Google Patents
Method and device for conducting construction simulation on steel truss arch bridge through BIM Download PDFInfo
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Abstract
The invention relates to the technical field of bridge construction simulation, in particular to a method and device for conducting construction simulation on a steel truss arch bridge through a BIM. The simulation method includes the steps that a construction plan document of the steel truss arch bridge is input into system software, so that a construction plan operation file is acquired, the construction plan operation file is related to a construction model of the steel truss arch bridge, and a three-dimensional construction plan model including time, resources and plans is generated; according to the three-dimensional construction plan model and the design structure of the steel truss arch bridge, embedded section construction process simulation, closure section construction process simulation, on-arch upright construction process simulation and reinforced concrete beam construction process simulation are conducted on the steel truss arch bridge. By the adoption of the method and device for conducting construction simulation on the steel truss arch bridge through the BIM, the construction process of the steel truss arch bridge to be built can be simulated so that problems existing in the bridge construction process can be found in time, and data reference is provided for actual construction of the steel truss arch bridge.
Description
Technical field
The present invention relates to bridge construction simulation technical field, realize the method and apparatus of steel truss arch bridge construction emulation in particular to a kind of BIM of utilization.
Background technology
Along with the development of bridge construction technology, Longspan Bridge is just with the situation rapid emergence maked rapid progress, and steel truss arched bridge is widely adopted because it has better cross-domain ability than pre-stress concrete bridge.
The construction of steel truss arched bridge is generally build according to design drawing, mainly comprises bridge substructure construction, bridge superstructure construction and the construction of accessory structure of bridge.In bridge construction process, need the many factors considered, as needs consider type of bridge, span, width, the conditions such as the hydrology that bridge location is in, geology, landform, also will consider the factors such as traffic, equipment, duration and cost.
And in current steel truss arched bridge process of construction, intuitively can not show bridge construction process with reference to two-dimentional drawing, problem that can not be existing in Timeliness coverage bridge construction process, for the construction of steel truss arched bridge is made troubles.
Summary of the invention
In view of this, the object of the embodiment of the present invention is to provide a kind of BIM of utilization to realize the method and apparatus of steel truss arch bridge construction emulation, the work progress treating the steel truss arched bridge of construction emulates, with Problems existing in Timeliness coverage bridge construction process, for the practice of construction construction of steel truss arched bridge provides data foundation.
First aspect, embodiments provide a kind of method that BIM of utilization realizes steel truss arch bridge construction emulation, comprise: obtain construction plan operating file by the construction plan document import system software of steel truss arched bridge, described construction plan operating file is associated with the construction model of described steel truss arched bridge, generates the three-dimensional construction plan model comprising time, resource, plan; According to the project organization of described three-dimensional construction plan model and described steel truss arched bridge, carry out the embedded section construction technology emulation of described steel truss arched bridge, the emulation of closure segment construction technology, the emulation of spandrel column construction technology and the emulation of steel reinforced concrete girder construction process respectively.
In conjunction with first aspect, embodiments provide the first possible embodiment of first aspect, wherein, the embedded section construction technology emulation carrying out described steel truss arched bridge comprises: located by vertical and horizontal jack pair rib-lifting section; By locating bridle iron and the universal stand of arch springing, locate the embedded section of described arch springing; Adopt CABLEWAY ERECTION SYSTEM by lower boom rib-hoisting to treating hoisting area, horizontal adjustment arch rib locus is to design attitude; Adopt distance analysis instrument, measure the distance of lower boom to support in real time, adopt vertical and horizontal lifting jack to adjust code board support, when the distance measured fades to 0mm, determine that described lower boom accurately lifts and put in place.
In conjunction with first aspect, embodiments provide the embodiment that the second of first aspect is possible, wherein, the closure segment construction technology emulation carrying out described steel truss arched bridge comprises: built after closure segment both sides lower boom designs a model by design drawing, pass through survey instrument, determine that closure segment both sides lower boom designs a model spacing, by that analogy, the size designed a model of other rod members of closure segment is by closing up spacing and rod member locus, both sides carries out just establishing; Through measuring the rod member physical size of closure segment both sides, record and export the data form of Model Measured, then list data being updated in the parameter list of braced arch Segment Model; Adopt the parameter list of described braced arch Segment Model, the closure segment chord member of mode to horizontal box-structure that application inside and outside splice plate clamping docking connects emulates; " X " type structure is adopted to emulate respectively to the web member of closure segment and upper bottom lateral bracing brace.
In conjunction with first aspect, embodiments provide the third possible embodiment of first aspect, wherein, the spandrel column construction technology emulation carrying out described steel truss arched bridge comprises: carry out linear measurement to the described steel truss arched bridge of design, after installing in conjunction with column, superimposed load is on linear impact, analyze the linear deviation of column at upstream and downstream two arch rib integral node plate places, to provide spandrel column bottom splice plate spiro keyhole position corrected parameter, wherein, this corrected parameter is the boring reference data that the bolt of the every block splice plate be connected with top boom is holed; Emulation installation is carried out to side, two sides by symmetrical from span centre for spandrel column.
In conjunction with first aspect, embodiments provide the 4th kind of possible embodiment of first aspect, wherein, the steel reinforced concrete girder construction process emulation carrying out described steel truss arched bridge comprises: adopt T-shape hanger successively to lift steel reinforced concrete beam node girder steel by span centre to both sides in conjunction with the lifting mode in main rope road, and described node girder steel and steel beam bearing is carried out being connected and emulate; Girder steel in the middle of the beam body of described steel reinforced concrete beam is carried out in the venue connection emulation, by span centre to end bay successively hoisting simulation.
Second aspect, embodiments provide the device that a kind of BIM of utilization realizes steel truss arch bridge construction emulation, comprise: three-dimensional construction plan model acquisition module, for obtaining construction plan operating file by the construction plan document import system software of steel truss arched bridge, described construction plan operating file is associated with the construction model of described steel truss arched bridge, generates the three-dimensional construction plan model comprising time, resource, plan; Construction technology emulation module, for the project organization according to described three-dimensional construction plan model and described steel truss arched bridge, carry out the embedded section construction technology emulation of described steel truss arched bridge, the emulation of closure segment construction technology, the emulation of spandrel column construction technology and the emulation of steel reinforced concrete girder construction process respectively.
In conjunction with second aspect, embodiments provide the first possible embodiment of second aspect, wherein, described construction technology emulation module comprises: the first positioning unit, for being located by vertical and horizontal jack pair rib-lifting section; Second positioning unit, for the bridle iron by locating arch springing and universal stand, locates the embedded section of described arch springing; Embedded section Construction simulation unit, for adopting CABLEWAY ERECTION SYSTEM by lower boom rib-hoisting to treating hoisting area, horizontal adjustment arch rib locus is to design attitude; Adopt distance analysis instrument, measure the distance of lower boom to support in real time, adopt vertical and horizontal lifting jack to adjust code board support, when the distance measured fades to 0mm, determine that described lower boom accurately lifts and put in place.
In conjunction with second aspect, embodiments provide the embodiment that the second of second aspect is possible, wherein, described construction technology emulation module comprises: establish unit at the beginning of rod member, for having built after closure segment both sides lower boom designs a model by design drawing, by survey instrument, determine that closure segment both sides lower boom designs a model spacing, by that analogy, the size designed a model of other rod members of closure segment is undertaken just establishing by closing up spacing and rod member locus, both sides; Parameter updating block, for through measuring the rod member physical size of closure segment both sides, records and exports the data form of Model Measured, then being updated to by list data in the parameter list of braced arch Segment Model; Closure segment Construction simulation unit, for adopting the parameter list of described braced arch Segment Model, the closure segment chord member of mode to horizontal box-structure that application inside and outside splice plate clamping docking connects emulates; " X " type structure is adopted to emulate respectively to the web member of closure segment and upper bottom lateral bracing brace.
In conjunction with second aspect, embodiments provide the third possible embodiment of second aspect, wherein, described construction technology emulation module comprises: corrected parameter acquiring unit, for carrying out linear measurement to the described steel truss arched bridge of design, after installing in conjunction with column, superimposed load is on linear impact, analyze the linear deviation of column at upstream and downstream two arch rib integral node plate places, to provide spandrel column bottom splice plate spiro keyhole position corrected parameter, wherein, this corrected parameter is the boring reference data that the bolt of the every block splice plate be connected with top boom is holed; Spandrel column Construction simulation unit, for carrying out emulation installation by symmetrical from span centre for spandrel column to side, two sides.
In conjunction with second aspect, embodiments provide the 4th kind of possible embodiment of second aspect, wherein, described construction technology emulation module comprises: node steel beam lifting simulation unit, for adopting T-shape hanger successively to lift steel reinforced concrete beam node girder steel by span centre to both sides in conjunction with the lifting mode in main rope road, and described node girder steel and steel beam bearing are carried out being connected emulate; Middle steel beam lifting simulation unit, for girder steel in the middle of the beam body of described steel reinforced concrete beam is carried out connection emulation in the venue, by span centre to end bay successively hoisting simulation.
The BIM of utilization of the present invention realizes the method and apparatus of steel truss arch bridge construction emulation, according to the three-dimensional construction plan model of steel truss arched bridge and the project organization of steel truss arched bridge, to the embedded section construction technology of steel truss arched bridge, closure segment construction technology, spandrel column construction technology and steel reinforced concrete girder construction process emulate, thus the emulation realized the steel truss arch bridge construction process of building, this simulation process simulates the practice of construction process of steel truss arched bridge, the arrangement and method for construction adopted when can determine each structure construction by this emulation mode, problem that simultaneously can be existing in Timeliness coverage bridge construction process, thus provide Data support for the practice of construction construction of steel truss arched bridge.
For making above-mentioned purpose of the present invention, feature and advantage become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 shows in the embodiment of the present invention method flow diagram utilizing BIM to realize steel truss arch bridge construction emulation;
Fig. 2 shows the process flow diagram to the embedded section construction technology emulation mode of steel truss arched bridge in the embodiment of the present invention;
Fig. 3 shows in the embodiment of the present invention apparatus structure schematic diagram utilizing BIM to realize steel truss arch bridge construction emulation;
Fig. 4 shows the construction plan exploded view of the Process file imported in Delmia software in the embodiment of the present invention;
Fig. 5 shows embedded section structural representation in the embodiment of the present invention;
Fig. 6 shows the elongated web member planimetric map of closure segment in the embodiment of the present invention;
Fig. 7 shows closure segment stenogastry bar planimetric map in the embodiment of the present invention;
Fig. 8 shows closure segment structure elevation drawing in the embodiment of the present invention;
Fig. 9 shows closure segment construction process figure in the embodiment of the present invention;
Figure 10 shows the effect schematic diagram of stretch-draw 19# internode place 6# knotted rope in the embodiment of the present invention;
Figure 11 shows the effect schematic diagram of assembled 21# internode in the embodiment of the present invention;
Figure 12 shows the effect schematic diagram of stretch-draw numbering 20# internode place 7# knotted rope in the embodiment of the present invention;
Figure 13 shows the effect schematic diagram of closure segment construction in the embodiment of the present invention;
Figure 14 shows in the embodiment of the present invention effect schematic diagram completing and close up;
Figure 15 shows spandrel column typical section figure in the embodiment of the present invention;
Figure 16 shows spandrel column construction process figure in the embodiment of the present invention;
Figure 17 shows the structural representation of beam section G3+G2+G3 between girder steel in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on embodiments of the invention, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
In steel truss arched bridge process of construction, be generally build according to Bridge Design drawing, the construction of Bridge Design drawing to bridge has to be instructed with reference to effect, but intuitively can not show the work progress of bridge.
In order to before bridge construction, bridge construction process is previewed, to determine the Specific construction scheme of each structure of bridge, simultaneously in order to can be existing in Timeliness coverage bridge construction process problem, method and device that a kind of BIM of utilization realizes steel truss arch bridge construction emulation is provided in the present invention, wherein BIM refers to BIM, this model is based on every relevant information data of construction-engineering project, by the real information that numerical information analogue simulation buildings has, thus provide Data support more accurately for bridge construction.
See Fig. 1, the main processing steps utilizing BIM to realize the method for steel truss arch bridge construction emulation provided in the embodiment of the present invention comprises:
Step S11: obtain construction plan operating file by the construction plan document import system software of steel truss arched bridge, associated by construction plan operating file with the construction model of steel truss arched bridge, generates the three-dimensional construction plan model comprising time, resource, plan;
Step S12: according to the project organization of three-dimensional construction plan model and steel truss arched bridge, carries out the embedded section construction technology emulation of steel truss arched bridge, the emulation of closure segment construction technology, the emulation of spandrel column construction technology and the emulation of steel reinforced concrete girder construction process respectively.
The emulation mode of the embodiment of the present invention is based on the project organization of three-dimensional operating technique model and steel truss arched bridge, respectively to the embedded section construction technology of steel truss arched bridge, closure segment construction technology, industrial and commercial column construction technology and steel reinforced concrete girder construction process emulate, utilize the method can simulate the overall process of steel truss arch bridge construction, the Specific construction scheme of each structure of each steel truss arched bridge can be determined in analog simulation process, construction period, problem that simultaneously can be existing in Timeliness coverage work progress, for the practice of construction construction of steel truss arched bridge provides Data support, practice of construction construction for steel truss arched bridge provides convenient, improve the efficiency that steel truss arched bridge practice of construction is built.
During steel truss arched bridge is built, embedded section is the basis of bridge construction is also crucial, in this method to the key step of the emulation mode that the embedded section construction technology of steel truss arched bridge adopts as shown in Figure 2, comprising:
Step S121: located by vertical and horizontal jack pair rib-lifting section; By locating bridle iron and the universal stand of arch springing, the embedded section of location arch springing;
Step S122: adopt CABLEWAY ERECTION SYSTEM by lower boom rib-hoisting to treating hoisting area, horizontal adjustment arch rib locus is to design attitude;
Step S123: adopt distance analysis instrument, measures the distance of lower boom to support in real time, adopts vertical and horizontal lifting jack to adjust code board support, when the distance measured fades to 0mm, determines that lower boom accurately lifts and puts in place.
Utilize this to the emulation of embedded section construction technology, in actual process of construction, based on the result of this emulation, the embedded section of arch springing and the Hoisting Position of lower boom can be determined comparatively easily, ensure the accuracy of the installation setting position of each parts of practice of construction.
When the closure segment of steel truss arched bridge refers to that steel truss arched bridge construction is constructed respectively by two ends, two ends closes up part.In this emulation mode, the method that the closure segment construction technology of steel truss arched bridge emulates is comprised: built after closure segment both sides lower boom designs a model by design drawing, pass through survey instrument, determine that closure segment both sides lower boom designs a model spacing, by that analogy, the size designed a model of other rod members of closure segment is undertaken just establishing by closing up spacing and rod member locus, both sides; Through measuring the rod member physical size of closure segment both sides, record and export the data form of Model Measured, then list data being updated in the parameter list of braced arch Segment Model; Adopt the parameter list of braced arch Segment Model, the closure segment chord member of mode to horizontal box-structure that application inside and outside splice plate clamping docking connects emulates; " X " type structure is adopted to emulate respectively to the web member of closure segment and upper bottom lateral bracing brace.
In this emulation mode, the method that the spandrel column construction technology of steel truss arched bridge emulates is comprised: linear measurement is carried out to the steel truss arched bridge of design, after installing in conjunction with column, superimposed load is on linear impact, analyze the linear deviation of column at upstream and downstream two arch rib integral node plate places, to provide spandrel column bottom splice plate spiro keyhole position corrected parameter, wherein, this corrected parameter is the boring reference data that the bolt of the every block splice plate be connected with top boom is holed; Emulation installation is carried out to side, two sides by symmetrical from span centre for spandrel column.
In this emulation mode, the method that the steel reinforced concrete girder construction process of steel truss arched bridge emulates mainly is comprised: adopt T-shape hanger successively to lift steel reinforced concrete beam node girder steel by span centre to both sides in conjunction with the lifting mode in main rope road, and node girder steel and steel beam bearing are carried out being connected emulate; Girder steel in the middle of the beam body of steel reinforced concrete beam is carried out in the venue connection emulation, by span centre to end bay successively hoisting simulation.
The corresponding above-mentioned BIM of utilization realizes the method for steel truss arch bridge construction emulation, and the embodiment of the present invention additionally provides the device that a kind of BIM of utilization realizes steel truss arch bridge construction emulation, and as shown in Figure 3, the primary structure of this device comprises:
Three-dimensional construction plan model acquisition module 31, for obtaining construction plan operating file by the construction plan document import system software of steel truss arched bridge, construction plan operating file is associated with the construction model of steel truss arched bridge, generates the three-dimensional construction plan model comprising time, resource, plan;
Construction technology emulation module 32, for the project organization according to three-dimensional construction plan model and steel truss arched bridge, carry out the embedded section construction technology emulation of steel truss arched bridge, the emulation of closure segment construction technology, the emulation of spandrel column construction technology and the emulation of steel reinforced concrete girder construction process respectively.
In the work progress of steel truss arched bridge, be the division according to bridge structure, respectively each several part constructed, as the embedded section to bridge, closure segment, spandrel column and steel reinforced concrete beam are constructed respectively.In order to truly reflect the detailed process that bridge each several part is constructed, being also the division according to bridge Each part in the embodiment of the present invention, constructing respectively.
In the present invention, in order to realize the emulation to steel truss arched bridge embedded section construction technology, comprise with lower unit at construction technology emulation module: the first positioning unit, for being located by vertical and horizontal jack pair rib-lifting section; Second positioning unit, for the bridle iron by locating arch springing and universal stand, the embedded section of location arch springing; Embedded section Construction simulation unit, for adopting CABLEWAY ERECTION SYSTEM by lower boom rib-hoisting to treating hoisting area, horizontal adjustment arch rib locus is to design attitude; Adopt distance analysis instrument, measure the distance of lower boom to support in real time, adopt vertical and horizontal lifting jack to adjust code board support, when the distance measured fades to 0mm, determine that lower boom accurately lifts to put in place, by the cooperation of said units, realize the emulation to steel truss arched bridge embedded section construction technology.
In steel truss arch bridge construction process, construct respectively from bridge two ends, the part of closing up of two ends construction is called closure segment, in order to realize the emulation to closure segment work progress, comprise at construction technology emulation module: at the beginning of rod member, establish unit, for having built after closure segment both sides lower boom designs a model by design drawing, pass through survey instrument, determine that closure segment both sides lower boom designs a model spacing, by that analogy, the size designed a model of other rod members of closure segment is undertaken just establishing by closing up spacing and rod member locus, both sides; Parameter updating block, for through measuring the rod member physical size of closure segment both sides, records and exports the data form of Model Measured, then being updated to by list data in the parameter list of braced arch Segment Model; Closure segment Construction simulation unit, for adopting the parameter list of braced arch Segment Model, the closure segment chord member of mode to horizontal box-structure that application inside and outside splice plate clamping docking connects emulates; " X " type structure is adopted to emulate respectively to the web member of closure segment and upper bottom lateral bracing brace.
In the present invention, in order to realize the emulation to spandrel column construction technology, comprise at construction technology emulation module: corrected parameter acquiring unit, for carrying out linear measurement to the steel truss arched bridge of design, after installing in conjunction with column, superimposed load is on linear impact, analyze the linear deviation of column at upstream and downstream two arch rib integral node plate places, to provide spandrel column bottom splice plate spiro keyhole position corrected parameter, wherein, this corrected parameter is the boring reference data that the bolt of the every block splice plate be connected with top boom is holed; Spandrel column Construction simulation unit, for carrying out emulation installation by symmetrical from span centre for spandrel column to side, two sides.
In order to realize the emulation to steel reinforced concrete girder construction process in the present invention, comprise at construction technology emulation module: node steel beam lifting simulation unit, for adopting T-shape hanger successively to lift steel reinforced concrete beam node girder steel by span centre to both sides in conjunction with the lifting mode in main rope road, and node girder steel and steel beam bearing are carried out being connected emulate; Middle steel beam lifting simulation unit, for girder steel in the middle of the beam body of steel reinforced concrete beam is carried out connection emulation in the venue, by span centre to end bay successively hoisting simulation.
Also to receive boundary river bridge in the present invention, the Construction simulation method of steel truss arched bridge is described in detail.
Original boundary river Bridge Construction schedule of receiving adopts project document to work out, and embodies concrete engineering time and resource planning.
During concrete emulation, exploitation plug-in unit is imported by special project document, original project construction plan document is imported in Delmia software and forms process file, and receive boundary river bridge BIM construction model and associate, finally form the three-dimensional construction plan comprising time, resource, plan.
Concrete importing process and correlation technique: project document is imported delmia plug-in unit and opens, select the project plan that will import.
The process file that selection will import, developing instrument automatically can be resolved mpp file and be formed plan preview,
As shown in Figure 4, developing instrument automatically can be opened Delmia software and form the construction plan being directed into Process file, and shows concrete title and the planned time of each construction task in each process filename.
The three-dimensional construction plan with resource information is formed after inserting resource corresponding to each process:
The gant figure utilizing Delmia software to carry intuitively can check the resource situation of task and the logical relation between them, and judge that whether the resource arrangement in the same time is reasonable intuitively, convenient plan is again planned and adjusts.
By receiving in boundary river Bridge Construction schedule importing DELMIA software, with receive boundary river bridge BIM construction model and associate, previewed by the virtual emulation of arrangement and method for construction, the plan of checking construction scheme, task conflict possible during minimizing practice of construction, contribute to the reduction of erection time, reduce construction cost.
Be described in detail to the Construction simulation process of steel truss arched bridge various piece below.
The bridge arch of boundary river bridge received is formed by symmetrical 21 sections of internode structures are assembled successively, wherein by arch bottom to dome portions, internode structure distinguishes called after 1# internode, 2# internode, 3# internode ... 21# internode.
Embedded section process simulation
(1) arch springing embedded section critical process together with in the whole structure of main bridge Construction control of construction and accurate location of 1# internode, is that can main bridge rib-lifting section install the decision link with safe mass smoothly.As shown in Figure 5, the main bridge of this bridge is deck type hand basket steel braced arch structure.Steel braced arch by up and down totally four chord members form, between adopt web member, cross bar and upper bottom lateral bracing etc. to connect into N font space structure, main truss chord member steel material adopts the excellent Q370qE of welding performance, and web member adopts Q345qE.The long 8.45m of arch springing embedded section top boom, the long 9.0057m of lower boom; The long 7.9285m of 1# internode top boom, the long 5.5707m of lower boom.Chord member sectional dimension is wide 1.6m × high 1.2m, and arch springing place two panels arch rib centre distance is 27m, and arch axis center line is catenary in vertical plane, arch axis coefficient m=1.5, rise f=65.1959m, arch rib leaning angle β=8.37867 °.Arch rib facade projection of vault place purlin height 8.0m, arch rib facade projection of arch springing place purlin height 13.0m, internode horizontal projection length 8.2333m.
Due to the initial sections that arch springing embedded section is whole steel braced arch, affect the installation accuracy of each arch section in the linear and process of the arching of whole arch.Former construction technology installs braced arch the first two sections after-pouring concrete arch springing concrete to complete location.Concrete technological process is as follows:
1) employing carries out accurate adjustment location by vertical and horizontal jack pair rib-lifting section, ensure that arch springing embedded section can realize accurate adjustment location smoothly, bridle iron and universal stand, as main load supporting construction, ensure operability and the security of vaulted beam.
2) adopt CABLEWAY ERECTION SYSTEM by lower boom rib-hoisting to treating hoisting area, artificial horizontal adjustment arch rib locus is to the Position Approximate of design.Can open the distance analysis of analysis tool under DELMIA simulated environment, in simulation process, measurement lower boom keeps upset condition to the numeral of support always.
3) slowly put into preassembled code board support, vertical and horizontal lifting jack is installed and carries out accurate adjustment.Accurately located by vernier devices such as lifting jack, when the distance measured fades to 0mm, represent that lower boom accurately lifts and put in place.
4) due to arch springing embedded section truss is assembled complete after can not form a complete arch rib space structure, comparatively large for the assembled relative error of later stage internode, therefore adopt universal rod body to set up assembling support to carry out the assembling construction of first section of space nodes at the 1# internode preset.
After completing embedded section Construction simulation, in order to improve installation accuracy, be altered to after first three sections of braced arch is installed and build arch springing concrete again, the embedded section construction technological process by DELMIA analogue simulation, explore the digitalized artificial checking new way that application BIM virtual reality technology provides construction technology under computer environment, also for the prioritization scheme of BIM technology in construction technology provides data reference and data supporting.
(2) closure segment construction technology emulation
As Fig. 6 shows the elongated web member planimetric map of closure segment, as Fig. 7 shows closure segment stenogastry bar planimetric map, as Fig. 8 shows closure segment structure elevation drawing.
With reference to figure 6 to Fig. 8, closure segment is positioned at steel truss arched bridge center, main truss rod member is assembled complete after namely two sides 21# internode (referring to that two sides close up part) is assembled complete after, medium design reserves 3.323m space, installs for closure segment.Closure segment chord member (A22A22 '/E22E22 ') is horizontal box-structure, adopts inside and outside splice plate clamping docking to connect.Closure segment web member adopts " X " type structure, lower boom E21 ' node and the top boom A21 node of 21# internode have been installed in elongated web member A21-E21 ' connection, other 2 shorter web members are E21-0 ' and A21 '-0 ', connect to form " X " type structure with elongated web member A21-E21 '; On closure segment, bottom lateral bracing brace is also " X " type structure, and connected mode is identical with diagonal web member.
A, closure segment critical construction technology control measured data and design data contrasts.
Closure segment is the assembled final tache of whole arch, but causes actual closure segment practice of construction need do corresponding interim technical arrangement plan due to factors such as site environment temperature, the deformation of member, practice of construction deviation accumulations.By simulation parameter BIM model in DELMIA, explore the last measured data of application and drive construction BIM model, carry out Data Comparison with original model and derive analysis report, instructing closure segment technique adjustment.
Concrete checking procedure is as follows: built after closure segment both sides lower boom designs a model by design drawing, pass through survey instrument, determine that the lower boom spacing that designs a model in closure segment both sides is 1132.6mm, this provides reliable basis for closure section design model, by that analogy, the size designed a model of other rod members of closure segment is undertaken just establishing by closing up spacing and rod member locus, both sides.
Through measuring the rod member physical size of closure segment both sides, record and export the data form of Model Measured, then in the middle of the parametrization form of catia model list data being updated to braced arch sections.
Once the parametrization form associated with model data changes, software automatically can carry out reminder-data to model data and change, and the model data of model data after renewal is measured data.
On the basis of Model Measured data, closing up distance between chord member by survey instrument again measuring, is 1032.604mm, can calculate thus to design a model and difference spacing between measured data has 99.996mm.
Utilize catia software to the comparing function of the product (referring to design size and actual measurement size here) of different release, the position difference designed a model with Model Measured can be seen very soon.Green expression exceeds part, and yellow is release's lap, and red expression is not enough.
Select the picture and text contrast situation to two release's files, the renewal utilizing correlation data to design a model to closure segment again provides reliable data supporting.
B, closure segment construction technology emulate.
According to receiving boundary river grand bridge bridge district topographic condition and main bridge steel braced arch structure design characteristic, use for reference the experience of other unit in charge of construction domestic, in conjunction with our unit be engaged in the experience of cable-hoisting construction engineering, be foundation based on above-mentioned boundary river grand bridge design document and the correlation computations achievement received, work out this bridge main bridge steel braced arch closure construction scheme.
Scheme first closes up lower boom and bottom lateral bracing with closure segment, then closes up diagonal web member, then closes up top boom and top bracing, and its construction process is see Fig. 9.
The hoisting of closure segment construction process figure closure segment is complicated, " people, machine, the material " that relate to and process links are all many, depend merely on two-dimentional instrument and artificial experience anticipation communication directly perceived, difficult, under the 1:1 high simulated environment of DELMIA, preview whole process (even can the careful position to a spanner), explore and carry out by BIM technology the new paragon that project plan comparison, displaying and man-machine accessibility analogue simulation judge.
1) stretch-draw 19# internode place 6# knotted rope
As shown in Figure 10, complete the 5th group, the 17# internode place knotted rope stretch-draw of setting at firm braced arch after, continue free cantilever erection and be numbered 18#, 19#, 20# internode, be positioned at the 6th group of knotted rope at 19# internode place according to the stretch-draw of monitored instruction value.
2) free cantilever erection No. 21 internodes
As shown in figure 11, complete the observation of laggard trip temperature in the stretch-draw of 19# internode 6# knotted rope, simultaneously assembled 21# internode, and complete the construction of high bolt.To determine joining temperature and numbering 7# knotted rope stretching control force.
3) stretch-draw numbering 20# internode place 7# knotted rope
As shown in figure 12, the 7th group, 20# internode place knotted rope is completed according to the stretch-draw of monitored instruction value; After stretch-draw completes, again when joining temperature, the void size and design load of closing up button are compared, if error is less of drawing top ancillary method fine setting to reach construction requirement.
4) closure segment construction
As shown in figure 13, one-sided installation lower boom: splice plate is formed inverted U mouth and put into 21# internode joint, personnel enter arch box inside by people hole and carry out splice plate installation.
After inner side splice plate is in place, workmen pushes outside splice plate to chord member bottom, closure segment both sides splice plate again in the middle of closure segment, and punch location is squeezed in outside, fixes with plain bolt.
After completing the executing and twist of closure segment side lower boom plain bolt, adopt the installment work of the lower boom other end that used the same method, until after both sides lower boom completes installation, the joining temperature determined, installs each rod member of bottom lateral bracing.
One-sided web member is installed: remove 21# internode web member temporarily, and closure segment web member adopts the long web member of " entering " type structure hoisting and bottom stenogastry bar, structure to be combined hang in closed position and fixing after, recover 21# web member position, after fixedly completing, hang in top stenogastry bar again.
Adopt the lifting opposite side closure segment diagonal web member that uses the same method, after completing web member lifting, lifting closure segment both sides top boom also completes bolted.
5) complete and close up: as shown in figure 14, the lifting each rod member of top bracing fixed space position, complete and close up.Finally all for closure segment plain bolts are replaced with high-strength bolt and complete closure segment construction.
Closure segment construction is the difficult point engineering of whole bridge construction, is also and the construction procedure of key, carries out Construction simulation in advance in software, advise and prioritization scheme to closure segment construction method by BIM technology.For digitizing operating technique provides instruction.Also for the closure segment construction of later bridge of the same type provides reference.
(3) spandrel column construction technology emulation
Full-bridge is arranged symmetrically with 12 road spandrel columns along span centre, and 1-6# column lays respectively at 5#, 8#, 11#, 14#, 17#, 20# internode top boom integral node plate place, gross weight 952 tons.As Figure 15 shows the typical section figure of spandrel column.The inclined angle of spandrel column 8.37867 °, 1# ~ 5# column head piece center elevation is 1223.016m, and pier top column transverse width is that pier head piece do not established by 6.72m, 6# pier, and pier top column transverse width is 6.3m.1# column height 37.432m, 2# spandrel column height 25.625m, 3# spandrel column height 16.357m, 4# spandrel column height 9.520m, 5# spandrel column height 5.087m, 6# spandrel column height 2.671m.
After buckling and hanging system has been removed, linear measurement is carried out to steel braced arch, after installing in conjunction with column, superimposed load is on linear impact, analyze the linear deviation of column at upstream and downstream two arch rib integral node plate places, to provide spandrel column bottom splice plate spiro keyhole position corrected parameter.Steel braced arch rod member and splice plate size all manufacture in factory according to design size, on the every block splice plate be connected with top boom half bolt hole factory in portal by design, second half according to position, hole corrected parameter scene boring.Spandrel column is symmetrical from span centre to be installed to side, two sides, and two 6# columns that namely first setting height(from bottom) is shorter, then install 5#, 4#, 3#, 2#, 1# column successively.According to weight and version, 6# column adopts single-piece lifting, and 5#, 4# column adopts entire combination lifting, the mode that 3#, 2#, 1# column adopts single-piece lifting+combined hanging to combine.
Spandrel column carries out assembled toward bank 1# column from span centre 6# column successively, and its construction process is see Figure 16:
The emulation of spandrel column construction technology carries out construction simulation in strict accordance with arrangement and method for construction, for the construction of similar bridge spandrel column provides the three-dimensional document that can consult.
1) knotted rope is removed: after overall bridge closure section completes and closes up, and completes after deadweight break-in until bridge,
Start the dismounting operation of knotted rope, remove sequence requirement according to knotted rope and remove knotted rope from closure segment successively to arch springing.
2) two 6# spandrel columns are installed
Due to 6# spandrel column lighter in weight, therefore adopt the single lifting respectively in single group main rope road two single spandrel column rod member D6ZH without bracing.
3) two 5# spandrel columns are installed
The 5# column adopting two groups of main rope road overall times to lift two columns (D5ZH) and a horizontal connection structure (D5H1) to form.
4) two 4# spandrel columns are installed
The 5# column adopting two groups of main rope road overall times to lift two columns (D4ZH) and a horizontal connection structure (D4H1) to form.
5) two 3# spandrel columns are installed
The load designed due to this cable crane be the general assembly (TW) of 50T, 3# spandrel column beyond 50T, so 3# spandrel column, adopt two groups of main rope roads to divide upper and lower two sections to lift for twice.
The column that lifting bottom sections is connected with chord member and horizontal-associate D3Z1, D3H1, D3H2, D3H3, D3H4 encircle 6 rod members.
Respectively single installation upper segment horizontal-associate the 2nd, 3,4 part D3H5, D3H6, D3H7 totally 3 rod members.
Adopting two groups of main rope road overall times to lift the column of upper segment top cap V part and cross bar D3ZH D3H8, to encircle 8 rod members composition overall.
6) two 2# spandrel columns are installed
Two groups of main rope road overall times are adopted to lift the entirety of the column of the part 1 that bottom sections is connected with chord member and horizontal-associate D2Z2, D2Z1, D2H1, D2H2, D2H3, D2H4, D2H5 totally 9 rod member compositions.
Respectively single install upper segment horizontal-associate the 2nd, 3,4 part D2H6, D2H7, D2H8 totally 3 rod members.
Adopt two groups of main rope road monolithic hoistings again integral hoisting be connected with steel reinforced concrete bondbeam upper segment V part column and cross bar D2ZH, D2H9 totally 3 rod members.
7) two 1# spandrel columns are installed
Connect D1Z4 and D1Z3 two rod members as the road integral hoisting of part 1 list group main rope
4 horizontal-associate rod members D1H1, D1H2, D1H3, D1H4 of single lifting part 2.
Two groups of main rope road overall times are adopted to lift the entirety of the 3rd part D1Z1, D1Z2, D1H5, D1H6, D1H7, D1H8, D1H9 totally 6 rod members composition.
Adopt the single single horizontal white silk of 1# three rod members D1H10, D1H11, D1H12 lifting the 4th part respectively in group main rope road.
Adopt column cap D1ZH D1H12 totally three rod members of main rope road monolithic hoisting V part, before lifting D1ZH, install 1# column top end holder so that the construction of steel reinforced concrete beam.
(4) steel reinforced concrete girder construction process emulation
The lifting of steel reinforced concrete bondbeam by span centre to both sides hoisting steel beam node girder steel (G4 and G5) successively, and it to be connected with steel beam bearing; Again beam body center section (in across being G3+G2+G3, end bay is G1+G2+G3) three sections being connected in the venue, being lifted successively to end bay by span centre.The arrangement and method for construction that the lifting of steel reinforced concrete bondbeam adopts " without support temporary aerial ropeway " two groups of 2, main rope roads to carry out lifting.G4 steel beam lifting, by the boring of two side wing edge places, is adopted T-shape hanger to lift in conjunction with main rope road, is connected after in place by bearing with girder steel; In the middle part of beam body three sections after ground has connected, utilize wire rope to bundle, the mode that two groups of main rope roads lift.
In hoisting process, in when lifting across " G3+G2+G3 " girder construction, aloft carry out being connected rear loose hook with front and back G4 girder steel; During the lifting of end bay " G1+G2+G3 " beam body, G3 girder steel side is connected with 2# girder steel place G4, and G1 girder steel side is connected by bearing with T structure end bay bondbeam side bracket; Because the duration arranges, when lifting steel reinforced concrete beam end bay, T structure is failed construction and is completed, then need to arrange hood type bracket at 1# girder steel crossbeam place, places end bay steel reinforced concrete bondbeam G1 girder steel side temporarily, after having constructed in T structure bondbeam side, then removal bracket.After T structure has been constructed, then carry out steel reinforced concrete beam bridge floor slab Reinforced Concrete Construction
1) step one:
1. first lift 6# column top girder steel G5 beam section, G5 girder steel lifting preparation need arrange hanger respectively at girder steel two ends, fixes so that funicular system does lifting;
2. again by 5# column to 2# column successively symmetrical hoisting steel beam top girder steel G4 beam section circulate above-mentioned installation process complete 3-4# steel reinforced concrete beam install, the above-mentioned installation process that circulates complete 2-3# steel reinforced concrete beam install.
2) step 2:
1. as shown in figure 17, on moulding bed, between assembled girder steel, beam section G3+G2+G3 carries out in the venue, and completes high-strength bolt connection and top board welding procedure;
2. lift beam section G3+G2+G3 between steel reinforced concrete bondbeam girder steel successively by span centre to end bay, and be connected with G4, G5 beam on column, complete high-strength bolt and connect and top board welding procedure.
3) step 3:
1. in the venue on moulding bed between assembled girder steel girder steel beam section G1+G2+G3 carry out, and complete high-strength bolt and connect and top board welding procedure;
2. between 1-2# column, steel reinforced concrete beam is installed, and lifting end bay steel reinforced concrete beam G1+G2+G3, G1 part is positioned on the support of 1# column head piece temporarily, and G3 and 2# column G4 connects.
4) step 4:
1. after T structure has been constructed, remove the falsework on 1# girder steel.
2. support arm and model in bridge deck concrete is installed, construction bridge floor reinforced concrete and other affiliated facility of bridge floor.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.
If function using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part of the part that technical scheme of the present invention contributes to prior art in essence in other words or this technical scheme can embody with the form of software product, this computer software product is stored in a storage medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of each embodiment method of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection domain of claim.
Claims (10)
1. utilize BIM to realize a method for steel truss arch bridge construction emulation, it is characterized in that, comprising:
Obtain construction plan operating file by the construction plan document import system software of steel truss arched bridge, described construction plan operating file is associated with the construction model of described steel truss arched bridge, generate the three-dimensional construction plan model comprising time, resource, plan;
According to the project organization of described three-dimensional construction plan model and described steel truss arched bridge, carry out the embedded section construction technology emulation of described steel truss arched bridge, the emulation of closure segment construction technology, the emulation of spandrel column construction technology and the emulation of steel reinforced concrete girder construction process respectively.
2. method according to claim 1, is characterized in that, the embedded section construction technology emulation carrying out described steel truss arched bridge comprises:
Located by vertical and horizontal jack pair rib-lifting section;
By locating bridle iron and the universal stand of arch springing, locate the embedded section of described arch springing;
Adopt CABLEWAY ERECTION SYSTEM by lower boom rib-hoisting to treating hoisting area, horizontal adjustment arch rib locus is to design attitude;
Adopt distance analysis instrument, measure the distance of lower boom to support in real time, adopt vertical and horizontal lifting jack to adjust code board support, when the distance measured fades to 0mm, determine that described lower boom accurately lifts and put in place.
3. method according to claim 1, is characterized in that, the closure segment construction technology emulation carrying out described steel truss arched bridge comprises:
Build after closure segment both sides lower boom designs a model by design drawing, pass through survey instrument, determine that closure segment both sides lower boom designs a model spacing, by that analogy, the size designed a model of other rod members of closure segment is by closing up spacing and rod member locus, both sides carries out just establishing;
Through measuring the rod member physical size of closure segment both sides, record and export the data form of Model Measured, then list data being updated in the parameter list of braced arch Segment Model;
Adopt the parameter list of described braced arch Segment Model, the closure segment chord member of mode to horizontal box-structure that application inside and outside splice plate clamping docking connects emulates; " X " type structure is adopted to emulate respectively to the web member of closure segment and upper bottom lateral bracing brace.
4. method according to claim 1, is characterized in that, the spandrel column construction technology emulation carrying out described steel truss arched bridge comprises:
Linear measurement is carried out to the described steel truss arched bridge of design, after installing in conjunction with column, superimposed load is on linear impact, analyze the linear deviation of column at upstream and downstream two arch rib integral node plate places, to provide spandrel column bottom splice plate spiro keyhole position corrected parameter, wherein, this corrected parameter is the boring reference data that the bolt of the every block splice plate be connected with top boom is holed;
Emulation installation is carried out to side, two sides by symmetrical from span centre for spandrel column.
5. method according to claim 1, is characterized in that, the steel reinforced concrete girder construction process emulation carrying out described steel truss arched bridge comprises:
Adopt T-shape hanger successively to lift steel reinforced concrete beam node girder steel by span centre to both sides in conjunction with the lifting mode in main rope road, and described node girder steel and steel beam bearing are carried out being connected emulate;
Girder steel in the middle of the beam body of described steel reinforced concrete beam is carried out in the venue connection emulation, by span centre to end bay successively hoisting simulation.
6. utilize BIM to realize a device for steel truss arch bridge construction emulation, it is characterized in that, comprising:
Three-dimensional construction plan model acquisition module, for obtaining construction plan operating file by the construction plan document import system software of steel truss arched bridge, described construction plan operating file is associated with the construction model of described steel truss arched bridge, generates the three-dimensional construction plan model comprising time, resource, plan;
Construction technology emulation module, for the project organization according to described three-dimensional construction plan model and described steel truss arched bridge, carry out the embedded section construction technology emulation of described steel truss arched bridge, the emulation of closure segment construction technology, the emulation of spandrel column construction technology and the emulation of steel reinforced concrete girder construction process respectively.
7. device according to claim 6, is characterized in that, described construction technology emulation module comprises:
First positioning unit, for locating by vertical and horizontal jack pair rib-lifting section;
Second positioning unit, for the bridle iron by locating arch springing and universal stand, locates the embedded section of described arch springing;
Embedded section Construction simulation unit, for adopting CABLEWAY ERECTION SYSTEM by lower boom rib-hoisting to treating hoisting area, horizontal adjustment arch rib locus is to design attitude; Adopt distance analysis instrument, measure the distance of lower boom to support in real time, adopt vertical and horizontal lifting jack to adjust code board support, when the distance measured fades to 0mm, determine that described lower boom accurately lifts and put in place.
8. device according to claim 6, is characterized in that, described construction technology emulation module comprises:
Unit is established at the beginning of rod member, for having built after closure segment both sides lower boom designs a model by design drawing, pass through survey instrument, determine that closure segment both sides lower boom designs a model spacing, by that analogy, the size designed a model of other rod members of closure segment is undertaken just establishing by closing up spacing and rod member locus, both sides;
Parameter updating block, for through measuring the rod member physical size of closure segment both sides, records and exports the data form of Model Measured, then being updated to by list data in the parameter list of braced arch Segment Model;
Closure segment Construction simulation unit, for adopting the parameter list of described braced arch Segment Model, the closure segment chord member of mode to horizontal box-structure that application inside and outside splice plate clamping docking connects emulates; " X " type structure is adopted to emulate respectively to the web member of closure segment and upper bottom lateral bracing brace.
9. device according to claim 6, is characterized in that, described construction technology emulation module comprises:
Corrected parameter acquiring unit, for carrying out linear measurement to the described steel truss arched bridge of design, after installing in conjunction with column, superimposed load is on linear impact, analyze the linear deviation of column at upstream and downstream two arch rib integral node plate places, to provide spandrel column bottom splice plate spiro keyhole position corrected parameter, wherein, this corrected parameter is the boring reference data that the bolt of the every block splice plate be connected with top boom is holed;
Spandrel column Construction simulation unit, for carrying out emulation installation by symmetrical from span centre for spandrel column to side, two sides.
10. device according to claim 6, is characterized in that, described construction technology emulation module comprises:
Node steel beam lifting simulation unit, for adopting T-shape hanger successively to lift steel reinforced concrete beam node girder steel by span centre to both sides in conjunction with the lifting mode in main rope road, and is undertaken being connected by described node girder steel and steel beam bearing and emulates;
Middle steel beam lifting simulation unit, for girder steel in the middle of the beam body of described steel reinforced concrete beam is carried out connection emulation in the venue, by span centre to end bay successively hoisting simulation.
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