CN114673187A - Raft plate steel bar support construction method - Google Patents
Raft plate steel bar support construction method Download PDFInfo
- Publication number
- CN114673187A CN114673187A CN202210432054.XA CN202210432054A CN114673187A CN 114673187 A CN114673187 A CN 114673187A CN 202210432054 A CN202210432054 A CN 202210432054A CN 114673187 A CN114673187 A CN 114673187A
- Authority
- CN
- China
- Prior art keywords
- support
- raft
- steel bar
- stand
- columns
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/01—Flat foundations
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/18—Spacers of metal or substantially of metal
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0026—Metals
- E02D2300/0029—Steel; Iron
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2600/00—Miscellaneous
- E02D2600/20—Miscellaneous comprising details of connection between elements
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The raft steel bar support construction method includes calculating the dead weight and total load of raft steel bars to determine the size parameters of support columns and cross beams and the space between the support columns, wherein the support columns and the cross beams are channel steel; generating a raft plate steel bar support plane arrangement diagram based on the size parameters of the support upright columns and the cross beams and the intervals of the support upright columns, popping up a position line of the support upright columns on the waterproof protective layer and a cross beam arrangement line to form a support plane arrangement net based on the raft plate steel bar support plane arrangement diagram, and positioning and setting out the raft plate steel bar support plane arrangement net based on the support plane arrangement net; arrange the concrete cushion and add the concrete cushion between the adjacent support stand on the support stand position on waterproof layer, based on the fixed raft board lower iron of concrete cushion, the support stand is fixed in raft board lower iron perpendicularly, bracing one end fixed connection support stand, and raft board lower iron is connected to the other end, and the web of crossbeam is fixed in the support stand via the bolt, and the flange board supporting raft board of crossbeam goes up iron. The method improves the stability of the raft support.
Description
Technical Field
The invention relates to the technical field of super-thick raft plate steel bar support construction, in particular to a super-high-rise raft plate steel bar support construction method.
Background
With the vigorous development of the building industry, high-rise buildings begin to emerge in large quantities, and the construction quality of the buildings is more and more emphasized by people. Because high-rise buildings are heavy, the thickness of the foundation bottom plate is larger, the reinforcement quantity is far larger than that of the foundation bottom plate of a common multi-rise building, the reinforcement quantity of the bottom plate is large, the number of layers of the reinforcement is large, and the diameter of the reinforcement is large. In the traditional method, the steel bar is easy to produce local bending and deformation as a support, the thickness of the steel bar protective layer is not easy to control, and even the whole sliding of the steel bar net piece occurs, so that safety accidents occur. The construction safety and the steel bar installation quality can be met only by designing a special steel bar support for binding and installing the steel bars. According to the characteristics and difficulties, the construction method of the super-thick raft plate steel bar support is more effective, economical, safe and environment-friendly.
The above information disclosed in this background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is well known to those of ordinary skill in the art.
Disclosure of Invention
The raft steel bar support construction method can save materials and labor cost, improve construction quality, accelerate construction progress, reduce construction cost and ensure construction safety.
In order to achieve the above purpose, the invention provides the following technical scheme:
the invention relates to a raft plate steel bar support construction method, which comprises the following steps:
calculating the self weight of reinforcing steel bars of the raft and the total load to determine the size parameters of the stand columns and the cross beams of the support and the intervals of the stand columns of the support, wherein the stand columns and the cross beams of the support are channel steel types, and the total load comprises the self weight of the reinforcing steel bars of the raft and the load of the support;
generating a raft steel bar support plane layout diagram based on the size parameters of the support columns and the cross beams and the intervals of the support columns, after pouring a waterproof protective layer, popping up position lines of the support columns and cross beam layout lines on the waterproof protective layer to form a support plane layout net based on the raft steel bar support plane layout diagram, and positioning and paying off based on the support plane layout net;
arrange the concrete cushion and add the concrete cushion between the adjacent support stand on the support stand position on waterproof layer, based on the fixed raft board of concrete cushion is indisputable down, the support stand is fixed in perpendicularly indisputable down, bracing one end fixed connection the support stand, the other end is connected the raft board is indisputable down, and the web of crossbeam is fixed in the support stand via the bolt, and the flange plate of crossbeam supports the raft board and goes up indisputable.
In the raft plate steel bar support construction method, the cross beams are connected with the adjacent cross beams through the split heads.
In the raft steel bar support construction method, the upper iron and the lower iron of the raft comprise a mesh steel bar structure.
In the raft plate steel bar support construction method, the size parameters of the support upright column and the support cross beam respectively comprise length, thickness and width.
In the raft steel bar support construction method, the flange plates and the web plates of the support upright posts are welded with the lower iron of the raft.
In the technical scheme, the raft steel bar support construction method provided by the invention has the following beneficial effects: a raft steel bar support construction method through adopting the shaped steel support to replace current steel bar support, adopt the channel-section steel to carry out whole braced system's setting, support stand bottom adopts welding mode and raft board lower iron to fix, the reinforcing bar bracing adopts welded mode to weld channel-section steel web edge of a wing and raft board lower iron, the stand is consolidated through bolted connection with the crossbeam, the bottom adopts high-grade mortar cushion to support, protected the waterproof layer not destroyed, the bracing has been set up simultaneously, further strengthen whole braced system stability. But the reinforcing bar bearing capacity is little, easily buckle, unfavorable conditions such as deformation in having improved current steel bar support way, provides safer, more stable construction platform in the bottom plate construction, simultaneously, assurance raft construction safety quality and construction production efficiency that also can be better.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic plan view of raft reinforcing steel bar support construction method.
Fig. 2 is a schematic view of connection of a support column and a cross beam in a raft plate steel bar support construction method.
Fig. 3 is a schematic view of connection between a support column and a raft lower iron in the raft steel bar support construction method.
Fig. 4 is a schematic perspective view of a support column and raft lower iron in the raft steel bar support construction method.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, in one embodiment, in a raft steel bar support construction method of the present invention,
calculating the dead weight and the total load of reinforcing steel bars of the raft to determine the size parameters of the support upright columns 1 and the cross beams 2 and the space between the support upright columns 1, wherein the support upright columns 1 and the cross beams 2 are channel steel types; further, total load includes permanent load and live load, and wherein, the permanent load includes reinforcing bar dead weight and support load, and the live load includes construction load and concrete placement load, and the construction load includes operating personnel load.
Generating a raft steel bar support plane layout diagram based on the size parameters of the support columns 1 and the cross beams 2 and the intervals of the support columns 1, popping up position lines of the support columns 1 and arrangement lines of the cross beams 2 on the waterproof protective layer to form a support plane arrangement net based on the raft steel bar support plane layout diagram after the waterproof protective layer is poured, and positioning and paying off based on the support plane arrangement net;
arrange concrete cushion 3 and add concrete cushion 3 between the adjacent support stand 1 on waterproof layer's support stand 1 position, based on iron 4 under 3 fixed rafts of concrete cushion, support stand 1 is fixed in perpendicularly iron 4 under the raft, 6 one end fixed connection of bracing support stand 1, the other end is connected iron 4 under the raft, the web of crossbeam 2 is fixed in support stand 1 via the bolt, iron 5 on the flange plate supporting raft of crossbeam 2.
In the preferred embodiment of the raft steel bar support construction method, the cross beams 2 are connected with the adjacent cross beams 2 through the split heads.
In the preferred embodiment of the raft steel bar support construction method, the upper raft iron 5 and the lower raft iron 4 comprise net-shaped steel bar structures.
In the preferred embodiment of the raft plate steel bar support construction method, the size parameters of the support upright column 1 and the cross beam 2 respectively comprise length, thickness and width.
In the preferred embodiment of the raft steel bar support construction method, the flange plates and the webs of the support upright posts 1 are welded with the raft lower iron 4.
In one embodiment, the construction method of the super-thick raft steel bar support comprises the steps of analysis and checking in advance, three-dimensional arrangement design, in-plant preprocessing, on-site line positioning and paying off, cushion block 3 setting, column mounting, inclined strut 6 setting, cross beam 2 mounting, steel bar laying and the like. The construction steps are as follows:
the method comprises the following steps: carrying out load calculation, analyzing the model selection of the bracket, and determining the model number and the arrangement interval of the section steel;
step two: three-dimensional arrangement design, and preprocessing in a factory;
step three: positioning and paying off on site to form a plane arrangement net, and paving an upright post cushion block 3 according to the plane arrangement net;
step four: binding reinforcing steel bars of a lower net of the raft, installing the upright column, and back-welding the bottom of the upright column with the upper iron 5 of the lower net;
step five: short steel bars are adopted to weld the inclined struts 6, and the three-direction inclined struts 6 are arranged in parallel along the flange and the web of the channel steel respectively to reinforce the upright posts, so that the stability is improved;
step six: the beam 2 and the upright post are connected and reinforced by bolts according to design deepening in the middle of the upright post;
step seven: the connection of the steel bar beam 2 deepens according to the design, and the beam 2 and the upright post are connected and reinforced by bolts;
step eight: binding the net-laying steel bars of the raft, pouring concrete and curing.
In one embodiment, the load borne by the steel bar support is calculated in advance through a design drawing and comprises the self weight of the steel bar on the upper layer, and the loads of constructors and construction equipment. The material of steel bar support is confirmed according to the size of upper and lower layer reinforcing bar interval and the size of load, confirms the site operation shaped steel and arranges the interval, and the step is arranged to crossbeam 2, and 6 bearing heights of bracing. In one embodiment, the raft lower iron is raft lower rebar.
In one embodiment, after the model, specification and arrangement distance of the support material are determined, the length of each support beam 2 and the positioning of the connecting part can be determined through three-dimensional arrangement design, and factory preprocessing is realized. After the three-dimensional arrangement design is completed, a positioning line can be released on the waterproof roll, and a prefabricated high-grade concrete block which is manufactured in advance is placed. Can carry out the column mouting after the reinforcement that rolls down after accomplishing, the stand bottom is consolidated with the welding of mesh reinforcement back down, also needs to set up bracing 6 simultaneously and consolidates. Middle connection crossbeam 2 carries out two-sided full weld with the stand and consolidates, forms a whole with whole raft support, reduces the stand stride, prevents that the stand from buckling, and the height strides the position and adopts the short channel steel to consolidate. 2 webs of top crossbeam weld in the stand top, and the welding of multiplicable short steel bar forms wholly in the middle of the adjacent crossbeam 2, and the position is striden to height adds short channel steel welding reinforcement. After the support construction is completed, the water and electricity pipelines are pre-buried, and raft plate concrete pouring and maintenance can be carried out after the upper iron 5 is laid.
The super-thick raft plate steel bar support construction method is characterized in that the perpendicularity of 1 erection pile of the support stand column is noticed, the bottom of the stand column is free of suspension phenomenon, a welding point is firm, the welding point is full and free of slag inclusion and welding leakage, the step pitch must be strictly controlled according to a calculation result in the setting of the middle connection cross beam 2, the height and the setting angle of the inclined strut 6 meet the design requirements, and the elevation of the top cross beam 2 is strictly controlled.
In one embodiment, the steel bar distribution and the protective layer thickness of a construction drawing are fully considered, the protective layer thicknesses of all the steel bar distribution and the protective layer thicknesses can be intuitively reflected through a three-dimensional arrangement design, after the situation that the steel bar distribution and the protective layer thicknesses are confirmed to be correct is deeply determined, the steel bar distribution and the protective layer thicknesses are fed back to a processing plant to be preprocessed in the plant, the steel bar distribution and the protective layer thicknesses are pulled to the site before being used in the site, the site is fixed by welding and fixing the stand columns, and the cross rods are connected and reinforced through bolts. Adopt the construction of shaped steel support, increased interval between the support than the tradition, reduced work load, middle part contact crossbeam 2 also can regard as the split heads support, reduces raft reinforcing bar packway and lays, the constructor operation of also being convenient for, the channel-section steel welding adds bolted connection more convenient, reliable. Use precast concrete cushion 3 in the middle of stand bottom and the adjacent stand, can guarantee mesh reinforcement protective layer thickness down, simultaneously, the upper portion load also can guarantee that the waterproof layer does not receive destruction through stand direct action on cushion 3, and iron 4 welding reinforcement under stand one side flange board and the web can and the raft board simultaneously. The vertical bracing 6 that adopts of stand consolidates, and the welding of 6 one end of bracing is on net reinforcing bar down, and one end welding can form three direction bracing on the edge of a wing or web, and adjacent stand highly adopts the channel-section steel to carry out bolted connection according to the design, makes the support form truss structure, increases the stability of monolith support. Adopt shaped steel as the support, reduce the support reinforcing bar quantity by a wide margin, reduce the engineering man-hour, material saving cost and cost of labor increase raft support stability, the shaped steel deflection is less simultaneously, guarantees construction safety and construction quality.
Finally, it should be noted that: the embodiments described are only a few embodiments of the present application, not all embodiments, and all other embodiments that can be obtained by one skilled in the art without making any inventive effort based on the embodiments in the present application are intended to be covered by the present application.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (5)
1. A raft plate steel bar support construction method is characterized by comprising the following steps:
calculating the self weight of reinforcing steel bars of the raft and the total load to determine the size parameters of the stand columns and the cross beams of the support and the intervals of the stand columns of the support, wherein the stand columns and the cross beams of the support are channel steel types, and the total load comprises the self weight of the reinforcing steel bars of the raft and the load of the support;
generating a raft steel bar support plane layout diagram based on the size parameters of the support columns and the cross beams and the intervals of the support columns, after pouring a waterproof protective layer, popping up position lines of the support columns and cross beam layout lines on the waterproof protective layer to form a support plane layout net based on the raft steel bar support plane layout diagram, and positioning and paying off based on the support plane layout net;
arrange the concrete cushion and add the concrete cushion between the adjacent support stand on the support stand position on waterproof layer, based on the fixed raft board of concrete cushion is indisputable down, the support stand is fixed in perpendicularly indisputable down, bracing one end fixed connection the support stand, the other end is connected the raft board is indisputable down, and the web of crossbeam is fixed in the support stand via the bolt, and the flange plate of crossbeam supports the raft board and goes up indisputable.
2. The raft steel reinforcement support construction method of claim 1, wherein the cross beam and the adjacent cross beam are connected via a split heads support.
3. The method of claim 1, wherein the upper and lower iron plates of the raft comprise a mesh-shaped steel bar structure.
4. The raft steel bar support construction method of claim 1, wherein the dimensional parameters of the support columns and the support beams respectively comprise length, thickness and width.
5. The method of claim 1, wherein the flanges and webs of the vertical columns of the support are welded to the lower iron of the raft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210432054.XA CN114673187A (en) | 2022-04-22 | 2022-04-22 | Raft plate steel bar support construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210432054.XA CN114673187A (en) | 2022-04-22 | 2022-04-22 | Raft plate steel bar support construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114673187A true CN114673187A (en) | 2022-06-28 |
Family
ID=82081081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210432054.XA Pending CN114673187A (en) | 2022-04-22 | 2022-04-22 | Raft plate steel bar support construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114673187A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984205A (en) * | 2019-12-11 | 2020-04-10 | 中国十七冶集团有限公司 | Manufacturing method of large-volume concrete raft plate steel bar support |
| CN213268605U (en) * | 2020-09-10 | 2021-05-25 | 中冶建工集团有限公司 | Steel bar support and raft foundation steel bar structure comprising same |
| CN215858626U (en) * | 2021-08-12 | 2022-02-18 | 中国建筑第四工程局有限公司 | Super thick raft foundation multilayer steel bar support frame |
| CN114215089A (en) * | 2021-12-08 | 2022-03-22 | 中铁二十局集团第六工程有限公司 | Shaped steel supporting structure for supporting raft plate reinforcing steel bars |
-
2022
- 2022-04-22 CN CN202210432054.XA patent/CN114673187A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110984205A (en) * | 2019-12-11 | 2020-04-10 | 中国十七冶集团有限公司 | Manufacturing method of large-volume concrete raft plate steel bar support |
| CN213268605U (en) * | 2020-09-10 | 2021-05-25 | 中冶建工集团有限公司 | Steel bar support and raft foundation steel bar structure comprising same |
| CN215858626U (en) * | 2021-08-12 | 2022-02-18 | 中国建筑第四工程局有限公司 | Super thick raft foundation multilayer steel bar support frame |
| CN114215089A (en) * | 2021-12-08 | 2022-03-22 | 中铁二十局集团第六工程有限公司 | Shaped steel supporting structure for supporting raft plate reinforcing steel bars |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212534174U (en) | Raft foundation steel bar supporting tool | |
| CN110886227B (en) | Main tower cast-in-place lower cross beam support system and construction method | |
| CN110409624B (en) | Reverse calculation and construction method for large equipment installation and main body structure | |
| CN111411721A (en) | Assembly type prefabricated floor slab secondary beam combined component | |
| CN212897482U (en) | Construction platform for high-rise building overhanging structural layer | |
| CN111424948A (en) | Construction method and construction platform for cantilever structure layer of high-rise building | |
| CN217105184U (en) | Raft board steel bar support structure | |
| CN218596920U (en) | Face empty assembled concrete bent cap cast-in-place construction support | |
| CN114673187A (en) | Raft plate steel bar support construction method | |
| CN215887884U (en) | Be applied to bailey frame steel trestle of deep basal pit construction | |
| CN213203667U (en) | Supporting structure for post-cast strip-striding temporary lane of top plate of ground depot | |
| CN210396277U (en) | Steel structure factory building with cross transition channel | |
| CN211645995U (en) | Composite hoop support structure | |
| CN112144660A (en) | Herringbone stiff column base structure and construction method thereof | |
| CN221077312U (en) | High-level water tank bracket and system for indirect air cooling system | |
| CN110388088A (en) | A kind of increasing of steel-structure factory building is across remodeling method | |
| CN217781699U (en) | River-crossing steel structure bridge | |
| CN218437171U (en) | Elevator foundation construction structure | |
| CN217232222U (en) | Shaped steel structure beam column node beam reinforcing bar anchor structure | |
| CN219931554U (en) | Cantilever steel structure construction platform with formwork system | |
| CN212452288U (en) | Steel-concrete composite beam concrete bridge deck construction support | |
| CN219732766U (en) | Large-span beam string formwork supporting structure | |
| CN220725378U (en) | Novel assembled equivalent steel-concrete combined structure | |
| CN114658031B (en) | Basement roof returning supporting structure of overweight steel structure truss and construction method | |
| CN217151146U (en) | Super 5 meters girder steel subassembly of encorbelmenting of concrete form support system that encorbelments |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |