CN109359342A - A kind of method of culvert BIM model cutting roadbed BIM model - Google Patents
A kind of method of culvert BIM model cutting roadbed BIM model Download PDFInfo
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- CN109359342A CN109359342A CN201811100189.6A CN201811100189A CN109359342A CN 109359342 A CN109359342 A CN 109359342A CN 201811100189 A CN201811100189 A CN 201811100189A CN 109359342 A CN109359342 A CN 109359342A
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Abstract
The invention discloses a kind of methods of culvert BIM model cutting roadbed BIM model, comprising the following steps: respectively generates a wire frame at the both ends of each culvert segment, which coincides with culvert segment outer profile；A wire frame is respectively generated on the outside of the barricade of culvert both ends；Using the wire frame of step I as input element, the space curved surface to coincide with culvert main structure outer surface is generated；Using the wire frame of step I as input element, generation can be with the space curved surface in gap between envelope culvert main structure；Using the wire frame of step I and step II as input element, generation can be with the space curved surface of envelope culvert both ends barricade；The space curved surface that step III, IV, V generate is merged, the space curved surface after merging is done into boolean's additive operation with roadbed BIM model.The present invention realizes cutting of the culvert BIM model to roadbed BIM model, and high degree of automation is practical, can greatly improve design efficiency and quality of achievement, has apparent application value.
Description
Technical field
The invention belongs to fields, and in particular to a kind of method of culvert BIM model cutting roadbed BIM model.
Background technique
Building Information Model is the new tool of architecture, engineering science and civil engineering.Building Information Model (Building
Information Modeling, abbreviation BIM), it is defined as by constituting completely with insufficient information to support life cycle management,
And it can be by building or architectural engineering information model that computer applied algorithm is directly explained.In short, i.e. digital technology support
Life cycle management to architectural environment.
Multi-specialized collaborative design is a significant application value of BIM technology, and in conventional two-dimensional design, roadbed is set with culvert
Meter carries out respectively, and when culvert design, roadbed information is embodied in culvert two-dimensional arrangement figure in the form of broken line type section；
When roadbed design, culvert length, width and the angle of intersection are only showed by culvert surrounding edge wire body in roadbed floor plan
The information of degree, in this case, culvert pass through the reduction of roadbed filling engineering quantity caused by roadbed, need in engineering quantity
It is calculated when calculating by working out simplified formula.And in BIM design, roadbed is cooperateing under the same platform with culvert
Result of design, the expression way of engineering structure also become threedimensional model from two-dimentional drawing, and roadbed is continuous three-dimensional geometry body, contain
Hole is made of several apertured discontinuous entities between each other.
Roadbed, the culvert collaboration BIM carried out on this basis is designed, since the three-dimensional geometry body of the two has the portion being overlapped
Point, it needs to cut culvert occupied space in roadbed body, to accurately show roadbed, the space geometry at culvert intersection location
Relationship, while the engineering quantity of roadbed filling can also be quickly and accurately calculated in such a way that volume is inquired, this sets with two dimension
Meter is compared in the presence of very big advantage.Since roadbed BIM model is continuous three-dimensional space solid, and culvert BIM model be by
Several discontinuous three-dimensional geometry bodies apertured between each other are constituted, so that culvert solid can not to the cutting of roadbed solid
It is directly realized by by geometry Boolean calculation, therefore, a kind of method for being badly in need of studying culvert BIM model cutting roadbed BIM model.
Summary of the invention
The present invention proposes that the purpose is to provide a kind of culvert BIM model cutting in order to solve the problems existing in the prior art
The method of roadbed BIM model.
The technical scheme is that a kind of method of culvert BIM model cutting roadbed BIM model, comprising the following steps:
I respectively generates a wire frame at the both ends of each culvert segment, which coincides with culvert segment outer profile；
II respectively generates a wire frame on the outside of the barricade of culvert both ends；
III generates the space curved surface to coincide with culvert main structure outer surface using the wire frame of step I as input element；
For IV using the wire frame of step I as input element, generation can be with the space curved surface in gap between envelope culvert main structure；
For V using the wire frame of step I and step II as input element, generation can be with the space curved surface of envelope culvert both ends barricade；
VI merges the space curved surface that step III, IV, V generate, and the space curved surface after merging is boolean with roadbed BIM model
Additive operation.
It is specific as follows that at each culvert segment both ends a wire frame is respectively generated in step I: according to culvert segment space layout
Information and culvert sectional dimension information respectively generate a space wire frame, these lines at each culvert segment both ends by BIM software
Frame coincides with culvert segment both ends outer profile.
It is specific as follows that a wire frame is respectively generated in step II on the outside of the barricade of culvert both ends: according to culvert segment space layout
Information, culvert sectional dimension information and barricade dimension information respectively generate a space wire frame by BIM software on the outside of barricade,
These wire frames consider the increase of wire frame width caused by barricade angle of flare, coincide with barricade outboard wheel profile.
Using the wire frame of step I as input element in step III, the sky to coincide with culvert main structure outer surface is generated
Between curved surface it is specific as follows: by BIM software, using the wire frame at each culvert segment both ends as input element, generate one can wrap
The space curved surface of culvert segment where network.
Using the wire frame of step I as input element in step IV, generation can be with the sky in gap between envelope culvert main structure
Between curved surface it is specific as follows: by BIM software, using the culvert wire frame at each segment gap both ends as input element, generate one can
With the space curved surface in culvert segment gap where envelope.
Using the wire frame of step I and step II as input element in step V, generation can be with the sky of envelope culvert both ends barricade
Between curved surface it is specific as follows: lower culvert of ordinary circumstance is there are two barricade, by BIM software, extraction step I generate with it is each
The nearest culvert segment wire frame of barricade generates space curved surface using the wire frame and barricade outermost wire frame as input element, these are empty
Between curved surface can distinguish the barricade at envelope culvert both ends.
The space curved surface that step III, IV, V generate is merged in step VI, by the space curved surface and roadbed BIM after merging
It is specific as follows that model does boolean's additive operation: step iii generates the discrete space curved surface for capableing of each culvert segment of envelope, step
Iv, which is generated, is capable of discrete space curved surface, the step v in each culvert segment of envelope gap generate being capable of envelope culvert both ends barricade
Discrete space curved surface, these three discrete space curved surfaces are merged by BIM software, using after the merging space curved surface with
Roadbed BIM model executes Boolean subtraction calculation, to realize the cutting for the matrix that satisfies the need.
The present invention is based on digitlization culvert segment location coordinate, culvert segment space layout information and culvert sectional dimension
Information is stored in table, according to the information in table successively Mass production be capable of each culvert segment of envelope discrete space it is bent
Face, the discrete space curved surface for capableing of each culvert segment of envelope gap, the discrete space curved surface for capableing of envelope culvert both ends barricade.It will
Three kinds of Discrete Surfaces can be used as a continuous three-dimensional geometry body after merging, to realize the cutting for the matrix that satisfies the need.
The present invention realizes cutting of the culvert BIM model to roadbed BIM model, and high degree of automation is practical, can be big
Width improves design efficiency and quality of achievement, has apparent application value.
Detailed description of the invention
Fig. 1 is flow chart of the method for the present invention.
Specific embodiment
Hereinafter, referring to drawings and examples, the present invention is described in detail:
As shown in Figure 1, a kind of method of culvert BIM model cutting roadbed BIM model, comprising the following steps:
I. a wire frame is respectively generated at the both ends of each culvert segment, the wire frame and culvert segment outer profile coincide S1.
It is described respectively to generate a wire frame at each culvert segment both ends and include, according to culvert segment space layout information and culvert
Hole sectional dimension information respectively generates a space wire frame, these wire frames and culvert at each culvert segment both ends by BIM software
Segment both ends outer profile coincides.
Ii. a wire frame S2 is respectively generated on the outside of the barricade of culvert both ends.
It is described respectively to generate a wire frame on the outside of the barricade of culvert both ends and include, according to culvert segment space layout information, contain
Hole sectional dimension information and barricade dimension information respectively generate a space wire frame, these wire frames by BIM software on the outside of barricade
The increase of wire frame width caused by barricade angle of flare is considered, is coincided with barricade outboard wheel profile；
Iii. using the wire frame of step i as input element, the space curved surface S3 to coincide with culvert main structure outer surface is generated.
The space song that using the wire frame of step i as input element, generation coincides with culvert main structure outer surface
Face includes, and by BIM software, using the wire frame at each culvert segment both ends as input element, generate one can be to contain where envelope
The space curved surface of hole segment；
Iv. using the wire frame of step i as input element, generation can be with the space curved surface S4 in gap between envelope culvert main structure.
It is described using the wire frame of step i as input element, generating can be bent with the space in gap between envelope culvert main structure
Face includes by BIM software, and using the culvert wire frame at each segment gap both ends as input element, generating one can be where envelope
The space curved surface in culvert segment gap.
V. using the wire frame of step i and step ii as input element, generation can be with the space curved surface of envelope culvert both ends barricade
S5。
It is described using the wire frame of step i and step ii as input element, generating can be bent with the space of envelope culvert both ends barricade
Face includes that there are two barricades for lower culvert of ordinary circumstance, and by BIM software, extraction step i is generated nearest with each barricade
Culvert segment wire frame, using the wire frame and barricade outermost wire frame as input element, generate space curved surface, these space curved surface energy
Enough distinguish the barricade at envelope culvert both ends.
Vi. the space curved surface generated step iii, iv, v merges, and the space curved surface after merging is done with roadbed BIM model
Boolean's additive operation S6.
The space curved surface that step iii, iv, v are generated merges, by the space curved surface and roadbed BIM model after merging
It is boolean and mutually cuts operation and include, step iii, which is generated, is capable of discrete space curved surface, the step iv of each culvert segment of envelope and generates
Discrete space curved surface, the step v for capableing of each culvert segment of envelope gap generate the discrete sky for capableing of envelope culvert both ends barricade
Between curved surface.These three discrete space curved surfaces are merged by BIM software, use the space curved surface and roadbed BIM after the merging
Model executes Boolean subtraction calculation, to realize the cutting for the matrix that satisfies the need.
The present invention is based on digitlization culvert segment location coordinate, culvert segment space layout information and culvert sectional dimension
Information is stored in table, according to the information in table successively Mass production be capable of each culvert segment of envelope discrete space it is bent
Face, the discrete space curved surface for capableing of each culvert segment of envelope gap, the discrete space curved surface for capableing of envelope culvert both ends barricade.It will
Three kinds of Discrete Surfaces can be used as a continuous three-dimensional geometry body after merging, to realize the cutting for the matrix that satisfies the need.
The present invention realizes cutting of the culvert BIM model to roadbed BIM model, and high degree of automation is practical, can be big
Width improves design efficiency and quality of achievement, has apparent application value.
Claims (7)
1. a kind of method of culvert BIM model cutting roadbed BIM model, it is characterised in that: the following steps are included:
(I) respectively generates a wire frame at the both ends of each culvert segment, which coincides with culvert segment outer profile；
(II) respectively generates a wire frame on the outside of the barricade of culvert both ends；
(III) generates the space curved surface to coincide with culvert main structure outer surface using the wire frame of step (I) as input element；
(IV) using the wire frame of step (I) as input element, generation can be with the space curved surface in gap between envelope culvert main structure；
(V) using the wire frame of step (I) and step (II) as input element, generating can be bent with the space of envelope culvert both ends barricade
Face；
(VI) merges the space curved surface that step (III), (IV), (V) generate, by the space curved surface and roadbed BIM mould after merging
Type does boolean's additive operation.
2. a kind of method of culvert BIM model cutting roadbed BIM model according to claim 1, it is characterised in that: step
It is specific as follows that at each culvert segment both ends a wire frame is respectively generated in (I): according to culvert segment space layout information and culvert
Sectional dimension information respectively generates a space wire frame, these wire frames and culvert section at each culvert segment both ends by BIM software
Section both ends outer profile coincides.
3. a kind of method of culvert BIM model cutting roadbed BIM model according to claim 1, it is characterised in that: step
It is specific as follows that a wire frame is respectively generated in (II) on the outside of the barricade of culvert both ends: according to culvert segment space layout information, culvert
Sectional dimension information and barricade dimension information, a space wire frame is respectively generated by BIM software on the outside of barricade, these wire frames are examined
The increase of wire frame width caused by barricade angle of flare is considered, has coincided with barricade outboard wheel profile.
4. a kind of method of culvert BIM model cutting roadbed BIM model according to claim 1, it is characterised in that: step
Using the wire frame of step (I) as input element in (III), generates the space curved surface to coincide with culvert main structure outer surface and have
Body is as follows: by BIM software, using the wire frame at each culvert segment both ends as input element, generate one can be to contain where envelope
The space curved surface of hole segment.
5. a kind of method of culvert BIM model cutting roadbed BIM model according to claim 1, it is characterised in that: step
Using the wire frame of step (I) as input element in (IV), generating can be with the space curved surface tool in gap between envelope culvert main structure
Body is as follows: by BIM software, using the culvert wire frame at each segment gap both ends as input element, generating one can be with envelope institute
Space curved surface in culvert segment gap.
6. a kind of method of culvert BIM model cutting roadbed BIM model according to claim 1, it is characterised in that: step
Using the wire frame of step (I) and step (II) as input element in (V), generation can be with the space curved surface of envelope culvert both ends barricade
Specific as follows: lower culvert of ordinary circumstance is there are two barricade, and by BIM software, extraction step (I) is generating with each barricade
Nearest culvert segment wire frame generates space curved surface using the wire frame and barricade outermost wire frame as input element, these spaces are bent
Face can distinguish the barricade at envelope culvert both ends.
7. a kind of method of culvert BIM model cutting roadbed BIM model according to claim 1, it is characterised in that: step
The space curved surface that step (III), (IV), (V) generate is merged in (VI), by the space curved surface and roadbed BIM model after merging
It is specific as follows to do boolean's additive operation: step (iii) generates the discrete space curved surface for capableing of each culvert segment of envelope, step
(iv) generating the discrete space curved surface for capableing of each culvert segment of envelope gap, step, (v) generate being capable of envelope culvert both ends
These three discrete space curved surfaces are merged by the discrete space curved surface of barricade by BIM software, bent using the space after the merging
Face and roadbed BIM model execute Boolean subtraction calculation, to realize the cutting for the matrix that satisfies the need.
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