CN117266612A - Structure conversion structure and process with adjustable bearing capacity - Google Patents
Structure conversion structure and process with adjustable bearing capacity Download PDFInfo
- Publication number
- CN117266612A CN117266612A CN202311262919.3A CN202311262919A CN117266612A CN 117266612 A CN117266612 A CN 117266612A CN 202311262919 A CN202311262919 A CN 202311262919A CN 117266612 A CN117266612 A CN 117266612A
- Authority
- CN
- China
- Prior art keywords
- stage
- pouring
- casting
- plate
- stage casting
- 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
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 17
- 238000005266 casting Methods 0.000 claims abstract description 57
- 238000010276 construction Methods 0.000 claims description 34
- 230000002787 reinforcement Effects 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 238000004873 anchoring Methods 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000011161 development Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0266—Enlarging
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/41—Connecting devices specially adapted for embedding in concrete or masonry
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/58—Connections for building structures in general of bar-shaped building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
- E04B1/61—Connections for building structures in general of slab-shaped building elements with each other
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/044—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres of concrete
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/20—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/30—Columns; Pillars; Struts
- E04C3/34—Columns; Pillars; Struts of concrete other stone-like material, with or without permanent form elements, with or without internal or external reinforcement, e.g. metal coverings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a structure conversion structure with adjustable bearing capacity and a process, wherein the structure comprises a first-stage casting column, a first-stage casting beam, a first-stage casting plate, a second-stage casting thick plate, a prestress system and an upper cover structure, wherein the first-stage casting column, the first-stage casting beam, the first-stage casting plate and the second-stage casting thick plate are sequentially distributed from bottom to top and are cast into a whole; the prestress system is fixedly embedded in the first-stage casting beam and extends out of the first-stage casting plate and the second-stage casting thick plate; the upper cover structure is arranged at the top of the second-stage casting thick plate. According to the invention, by adding the pre-stressing system and reasonably embedding, the adjustment of the bearing capacity of the conversion structure is realized under the condition that the secondary renewing structure (upper cover structure) is uncertain, and finally, the secondary renewing structure is realized to have a certain adjustable space, so that the secondary renewing structure is not limited by the reservation of the lower structure.
Description
Technical Field
The invention relates to the technical field of building structures and construction, in particular to a structure conversion structure with adjustable bearing capacity and a process.
Background
The problem of secondary renewal is often encountered in the construction engineering, such as the development project of the upper cover structure of the subway, the development work of the upper cover structure is usually separated from the development work of the first stage by a long time (since the development work of the first stage belongs to the subway department and the development work of the upper cover structure belongs to secondary land let-off development, the development time may be several years after the construction of the subway structure is completed), and the construction design and layout of the secondary development have a large uncertainty, although the primary stage structure takes the reservation of the load into consideration when the primary design of the whole structure, the conventional design considered house type setting is often broken through in practice, so that the conventional reserved structure may not meet the development requirement, a large amount of project transformation and reinforcement are required, however, since the subway internal area generally does not allow large-scale transformation construction, the development implementation of the upper cover has a large difficulty.
In order to solve the above problems, the conventional design method generally performs design by reserving a certain load margin, but due to the longer implementation period and uncertainty of secondary development, a large number of components still exist in the subsequent development and utilization process, and reinforcement is needed, and if the reserved load is large, the manufacturing cost of the first-stage structure is too high, and the economical efficiency is poor.
Therefore, providing a structure and process with adjustable bearing capacity for secondary reconstruction is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the invention provides a structure conversion structure and process with adjustable bearing capacity, which can realize the compatibility of construction in front and back stages, can realize the position adjustment and load change of the vertical members of the subsequent construction structure, and avoid the reinforcement and reconstruction of the built partial structure.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a bearing capacity adjustable structure conversion structure, includes first stage casting column, first stage casting beam, first stage casting plate, second stage casting thick plate, prestressing system and upper cover structure, first stage casting column, first stage casting beam, first stage casting plate and second stage casting thick plate distribute in proper order from bottom to top and pour as an organic whole; the prestress system is fixed in the first-stage casting beam in a pre-buried mode and extends out of the first-stage casting plate and the second-stage casting thick plate; the upper cover structure is arranged at the top of the second-stage casting thick plate.
By adopting the technical scheme, the invention has the beneficial effects that:
according to the invention, by adding the pre-stressing system and reasonably embedding, the adjustment of the bearing capacity of the conversion structure is realized under the condition that the secondary renewing structure (upper cover structure) is uncertain, and finally, the secondary renewing structure is realized to have a certain adjustable space, so that the secondary renewing structure is not limited by the reservation of the lower structure.
Further, the prestress system comprises a prestress pipeline, prestress steel bars and an anchoring system, wherein the prestress pipeline is pre-buried and fixed in the first-stage pouring beam, and two ends of the prestress pipeline extend into the first-stage pouring plate and the second-stage pouring thick plate; the prestressed reinforcement is arranged in the prestressed pipeline in a penetrating way, and two ends of the prestressed reinforcement extend out of the prestressed pipeline; the anchoring systems are arranged at two ends of the prestressed reinforcement and anchored on the second-stage casting thick plate.
Further, a connecting structure is arranged at the top of the first-stage pouring plate.
The beneficial effect that adopts the further technical scheme to produce is for the connection between first stage pouring board and the second stage pouring thick plate is more reliable stable.
Further, the connecting structure is a key, a reserved protrusion or a reserved notch.
Further, the upper cover structure is a frame structure or a frame shear wall structure or a shear wall structure.
The process for converting the structure with adjustable bearing capacity comprises the following steps of:
1) Construction of a first-stage structure: constructing a first-stage pouring column, a first-stage pouring beam and a first-stage pouring plate, pre-burying a pre-stressed pipeline in the first-stage pouring beam according to the preliminary position of the upper cover structure, enabling two ends of the pre-stressed pipeline to extend out of the first-stage pouring plate, and then pouring the formed whole;
2) Carrying out bearing capacity rechecking on the first-stage pouring beam according to the determined position of the upper cover structure, and finding out the first-stage pouring beam with insufficient bearing capacity caused by the position adjustment of the upper cover structure;
3) And (3) construction of a second stage structure: pouring the second-stage pouring thick plate on the first-stage pouring plate, and extending two ends of the prestressed reinforcement out of the second-stage pouring thick plate;
4) And (3) pre-stress construction: stretching the prestressed reinforcement inside the first-stage pouring beam with insufficient bearing capacity, and anchoring the prestressed reinforcement in the second-stage pouring thick plate;
5) And performing construction of the upper cover structure.
By adopting the technical scheme, the invention has the beneficial effects that:
the construction steps are simple, the continuity of the construction of the structure in the front and rear stages is realized, and the construction method is suitable for the secondary continuous construction process.
Furthermore, in the construction of the second stage structure, the dowel bars are reserved and installed in the second stage casting thick plate.
The vertical component (shear wall, column) for supporting the upper cover structure is prepared for the renewal of the upper cover structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
FIG. 1 is a plan view of a load-bearing adjustable structural conversion structure according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a view in section B-B of FIG. 1;
FIG. 4 is a schematic structural view of a connection structure according to the present invention;
FIG. 5 is a schematic view of another connecting structure according to the present invention;
FIG. 6 is a schematic view of another connecting structure according to the present invention;
FIG. 7 is a plan view of the first stage structure of the present invention after construction;
FIG. 8 is a cross-sectional view taken along line A-A of FIG. 7;
FIG. 9 is a plan view of the second stage construction and the prestressed construction according to the present invention; .
FIG. 10 is a cross-sectional view taken along line A-A of FIG. 9;
fig. 11 is an enlarged schematic view of the portion a in fig. 10.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-11, the embodiment of the invention discloses a structure conversion structure with adjustable bearing capacity, which comprises a first-stage casting column 1, a first-stage casting beam 2, a first-stage casting plate 3, a second-stage casting thick plate 4, a prestress system 5 and an upper cover structure 6, wherein the first-stage casting column 1, the first-stage casting beam 2, the first-stage casting plate 3 and the second-stage casting thick plate 4 are sequentially distributed from bottom to top and are integrally cast; the prestress system 5 is fixedly embedded in the first-stage casting beam 2 and extends out of the first-stage casting plate 3 and the second-stage casting thick plate 4; the upper cover structure 6 is arranged on top of the second stage casting thick plate 4. According to the invention, the prestress system 5 is added and reasonably embedded, so that the adjustment of the bearing capacity of the conversion structure is realized under the condition that the secondary reconstruction structure (the upper cover structure 6) is uncertain, and finally, the secondary reconstruction structure is provided with a certain adjustable space, so that the secondary reconstruction structure is not limited by the reservation of the lower structure.
Specifically, the pre-stressing system 5 comprises a pre-stressing pipeline 51, pre-stressing steel bars 52 and an anchoring system 53, wherein the pre-stressing pipeline 51 is pre-buried and fixed in the first-stage pouring beam 2, and two ends of the pre-stressing pipeline extend into the first-stage pouring plate 3 and the second-stage pouring thick plate 4; the prestressed reinforcement 52 is penetrated in the prestressed pipe 51, and both ends thereof extend out of the prestressed pipe 51; an anchor system 53 is mounted on both ends of the pre-stressed steel bar 52 and is anchored to the second stage casting slab 4.
Specifically, the top of the first-stage pouring plate 3 is provided with a connection structure, and in this embodiment, the connection structure is a pin key 7 or a reserved protrusion 8 or a reserved notch 9, so that the connection between the first-stage pouring plate 3 and the second-stage pouring thick plate 4 is more reliable and stable.
Specifically, the upper cover structure 6 is a frame structure or a frame shear wall structure or a shear wall structure.
The embodiment of the invention also discloses a process for converting the structure with adjustable bearing capacity, which comprises the following steps:
1) Construction of a first-stage structure: constructing a first-stage pouring column 1, a first-stage pouring beam 2 and a first-stage pouring plate 3, pre-burying a pre-stressed pipeline 51 in the first-stage pouring beam 2 according to the preliminary position of an upper cover structure 6, enabling two ends of the pre-stressed pipeline to extend out of the first-stage pouring plate 3, and then pouring the formed whole;
2) Carrying out bearing capacity rechecking on the first-stage pouring beam 2 according to the determined position of the upper cover structure 6 (the dotted line in the figure is the determined position of the upper cover structure 6), and finding out the first-stage pouring beam 2 with insufficient bearing capacity caused by the position adjustment of the upper cover structure 6; in this embodiment, the specific review process: after the final construction scheme of the upper cover structure 6 is determined, modifying a calculation model according to the final construction scheme, performing calculation analysis, and comparing the obtained result with a reserved result;
3) And (3) construction of a second stage structure: pouring the second-stage pouring thick plate 4 on the first-stage pouring plate 3, and extending two ends of the prestressed reinforcement 52 out of the second-stage pouring thick plate 4; in order to prepare for the renewal of the upper cover structure 6, the second stage pouring thick plate 4 is reserved with a dowel bar for supporting the vertical components (shear walls and columns) required by the upper cover structure 6;
4) And (3) pre-stress construction: tensioning the prestressed reinforcement 52 in the first-stage pouring beam 2 with insufficient bearing capacity, and anchoring the prestressed reinforcement to the second-stage pouring thick plate 4; the specific process is as follows: penetrating a pre-buried pre-stressing force steel bar 52 in a pre-buried pre-stressing force pipeline 51, fixing anchors at two ends of the pre-stressing force steel bar 52, tensioning the pre-stressing force steel bar 52 by using a tensioning jack, and finally fixing the pre-stressing force steel bar 52 and the anchors together by using clamping pieces and taking protective measures;
5) The construction of the upper cover structure 6 is performed, namely, the construction is performed according to the conventional building construction flow, and the pouring thick plate 4 at the second stage corresponds to the basic part of the conventional construction structure.
The invention has simple construction steps, realizes the continuity of the construction of the structure in the front and back stages, and is suitable for the secondary renewing process.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The structure conversion structure with the adjustable bearing capacity is characterized by comprising a first-stage casting column, a first-stage casting beam, a first-stage casting plate, a second-stage casting thick plate, a prestress system and an upper cover structure, wherein the first-stage casting column, the first-stage casting beam, the first-stage casting plate and the second-stage casting thick plate are sequentially distributed from bottom to top and are cast into a whole; the prestress system is fixed in the first-stage casting beam in a pre-buried mode and extends out of the first-stage casting plate and the second-stage casting thick plate; the upper cover structure is arranged at the top of the second-stage casting thick plate.
2. The adjustable-bearing-capacity structure conversion structure according to claim 1, wherein the prestress system comprises a prestress pipe, a prestress steel bar and an anchoring system, wherein the prestress pipe is pre-buried and fixed in the first-stage casting beam, and two ends of the prestress pipe extend into the first-stage casting plate and the second-stage casting thick plate; the prestressed reinforcement is arranged in the prestressed pipeline in a penetrating way, and two ends of the prestressed reinforcement extend out of the prestressed pipeline; the anchoring systems are arranged at two ends of the prestressed reinforcement and anchored on the second-stage casting thick plate.
3. A load-bearing adjustable structural conversion structure according to claim 1 or 2, wherein the first stage casting plate top is provided with a connecting structure.
4. A structure conversion structure with adjustable bearing capacity according to claim 3, wherein the connecting structure is a key or a reserved protrusion or a reserved notch.
5. The structure conversion structure with adjustable bearing capacity according to claim 1, wherein the upper cover structure is a frame structure or a frame shear wall structure or a shear wall structure.
6. A process for a load-bearing adjustable structural conversion structure according to claim 2, comprising the steps of:
1) Construction of a first-stage structure: constructing a first-stage pouring column, a first-stage pouring beam and a first-stage pouring plate, pre-burying a pre-stressed pipeline in the first-stage pouring beam according to the preliminary position of the upper cover structure, enabling two ends of the pre-stressed pipeline to extend out of the first-stage pouring plate, and then pouring the formed whole;
2) Carrying out bearing capacity rechecking on the first-stage pouring beam according to the determined position of the upper cover structure, and finding out the first-stage pouring beam with insufficient bearing capacity caused by the position adjustment of the upper cover structure;
3) And (3) construction of a second stage structure: pouring the second-stage pouring thick plate on the first-stage pouring plate, and extending two ends of the prestressed reinforcement out of the second-stage pouring thick plate;
4) And (3) pre-stress construction: stretching the prestressed reinforcement inside the first-stage pouring beam with insufficient bearing capacity, and anchoring the prestressed reinforcement in the second-stage pouring thick plate;
5) And performing construction of the upper cover structure.
7. A process according to claim 6, wherein, during the second stage structure construction,
and reserving and installing the dowel bars in the second-stage casting thick plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311262919.3A CN117266612A (en) | 2023-09-27 | 2023-09-27 | Structure conversion structure and process with adjustable bearing capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311262919.3A CN117266612A (en) | 2023-09-27 | 2023-09-27 | Structure conversion structure and process with adjustable bearing capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117266612A true CN117266612A (en) | 2023-12-22 |
Family
ID=89210119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311262919.3A Pending CN117266612A (en) | 2023-09-27 | 2023-09-27 | Structure conversion structure and process with adjustable bearing capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117266612A (en) |
-
2023
- 2023-09-27 CN CN202311262919.3A patent/CN117266612A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211775739U (en) | Detachable formwork structure for cast-in-place concrete slab | |
| CN111549658A (en) | Continuous bridge joint structure and continuous box girder bridge structure | |
| CN111501525A (en) | Prefabricated bridge pier column and bearing platform connecting structure with pier base and construction method thereof | |
| CN105780922A (en) | Construction method for segmental formwork hoisting system of large-span steel reinforced concrete transfer truss | |
| CN110644806A (en) | External prestress assembly type concrete frame-energy dissipation support reinforcing structure of existing structure | |
| CN221053267U (en) | Structure conversion structure with adjustable bearing capacity | |
| CN112376689A (en) | Prefabricated wallboard of assembled and precast beam | |
| CN117248442A (en) | Double-column pier and construction method thereof | |
| CN209958813U (en) | Reinforced concrete column transformation reinforced structure | |
| CN117266612A (en) | Structure conversion structure and process with adjustable bearing capacity | |
| CN114575451B (en) | Construction method of assembled reinforced concrete frame | |
| CN209260960U (en) | It is a kind of to facilitate the wall for installing interim bearing diagonal | |
| CN204780635U (en) | Super wide nonprismatic continuous beam 0# piece concreties and relieves construction structures | |
| CN214939401U (en) | Be used for pushing away permanent mound top and enlarge structure | |
| CN210483171U (en) | Prestressing force assembled UHPC bicycle shed structure | |
| CN113430934A (en) | Enlarged buckling tower foundation structure combined with pier body capping beam and construction method | |
| CN112709349A (en) | Assembled shear force wall of longitudinal tie bar in both sides of circular steel tube concrete | |
| CN218862179U (en) | Conversion structure for realizing flexible arrangement of upper part continuous building | |
| CN221142519U (en) | Bearing platform type socket joint type secondary concrete platform plate structure | |
| CN205476466U (en) | Formwork system is hoisted in segmentation of large -span shaped steel concrete conversion truss | |
| CN216766526U (en) | Steel column and concrete cushion cap connection structure | |
| CN220414314U (en) | Formwork support structure for concrete retaining wall construction | |
| CN114809072B (en) | Underground space prestress steel reinforced concrete top cover under oversized span heavy load | |
| CN216787148U (en) | Deep foundation pit composite type supporting structure | |
| CN220247177U (en) | Connecting node of prefabricated steel tube type steel concrete column and steel concrete beam |
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 |