CN113445620A - Novel building frame construction for civil construction engineering - Google Patents
Novel building frame construction for civil construction engineering Download PDFInfo
- Publication number
- CN113445620A CN113445620A CN202010224725.4A CN202010224725A CN113445620A CN 113445620 A CN113445620 A CN 113445620A CN 202010224725 A CN202010224725 A CN 202010224725A CN 113445620 A CN113445620 A CN 113445620A
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- main frame
- frame
- bolt
- bottom plate
- annular steel
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- 238000010276 construction Methods 0.000 title claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 230000003139 buffering effect Effects 0.000 claims description 11
- 238000010030 laminating Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 7
- 239000004567 concrete Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000011464 hollow brick Substances 0.000 description 1
- 238000009439 industrial construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011470 perforated brick Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- 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
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Abstract
The invention discloses a novel building frame structure for civil and architectural engineering, which comprises a main frame, wherein a support rod is connected inside the main frame, the bottom of the main frame is fixedly connected with a bottom plate, a bolt is connected onto the bottom plate, and the bottom plate is connected with a base plate through the bolt. The main frame is fixedly connected to the bottom plate, the bottom plate can provide a large contact area, stable supporting connection can be conveniently conducted on the main frame, the plurality of inclined supporting rods are connected to the inside of the main frame, the plurality of supporting rods form triangular supports, the main frame forms a stable supporting structure, the whole frame of the device can be supported, supporting is more stable, an annular steel mesh is arranged inside the main frame, reinforcing steel bars are connected to the inside of the annular steel mesh in a laminating mode, a pouring layer is filled inside the annular steel mesh, the annular steel mesh and the reinforcing steel bars are connected integrally, when external load is resisted, the whole resistance of the main frame can be improved, and larger external load can be borne.
Description
Technical Field
The invention belongs to the technical field of constructional engineering, and particularly relates to a novel building frame structure for civil and architectural engineering.
Background
The building engineering refers to an engineering entity formed by the construction of various building constructions and their auxiliary facilities and the installation of lines, pipelines and equipment matched with them. The house building is characterized by comprising a top cover, a beam column, a wall, a foundation and a project which can form an internal space and meet the requirements of people on production, living, study and public activities. The frame structure is formed by connecting beams and columns in a rigid connection or a hinged connection mode to form a structure of a bearing system, namely the frame formed by the beams and the columns resists horizontal load and vertical load in the using process. The building wall body of the structure does not bear load, only plays a role in enclosure and separation, is generally built or assembled by light plates such as prefabricated aerated concrete, expanded perlite, hollow bricks or perforated bricks, pumice, vermiculite, ceramsite and the like, and is also called a framework structure. The frame of the house is divided into single span and multi-span according to the span number; the coating comprises a single layer and a plurality of layers according to the number of layers; the components are symmetrical and asymmetrical according to the vertical surface; the materials are divided into steel frames, concrete frames, glued wood structural frames or steel and reinforced concrete mixed frames and the like. The most common of these are concrete frames, steel frames. The assembled and assembled integral concrete frame and steel frame is suitable for large-scale industrial construction, and has high efficiency and good engineering quality.
The existing building frame structure for civil and architectural engineering is mostly connected in a lap joint mode, the common building frame structure is simple, when coping with external load, the phenomenon of breakage easily occurs, the supporting force of the main frame is insufficient, the upper end of the building frame structure is difficult to build, and the use is not convenient enough.
Disclosure of Invention
The present invention has been made in an effort to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a novel frame structure for civil engineering works.
In order to achieve the purpose, the invention provides the following technical scheme: a novel building frame structure for civil and architectural engineering comprises a main frame, a supporting rod is connected inside the main frame, the bottom of the main frame is fixedly connected with a bottom plate, the bottom plate is connected with a bolt, the bottom plate is connected with a base plate through the bolt, the main frame is connected with a cross rod through a bolt, the cross rod is connected with a buffering knot, the main frame is connected with a side lever, an upper inclined plate is arranged at the upper end of the main frame, sink grooves are arranged at two ends of the upper inclined plate, a connecting clamp is connected with the bottom of the upper inclined plate through bolts, the connecting clamp is clamped with the upper end of the main frame, the upper end of the upper inclined plate is connected with the corner block, the bottom of the corner block is connected with a cross beam, the crossbeam is connected with the upper end side lever, the inside of body frame is provided with the annular steel mesh, the internal connection of annular steel mesh has the reinforcing bar, the inside packing of annular steel mesh pours the layer.
Preferably, the body frame sets up to four, the internal connection of body frame has a plurality of branches, branch is the slope setting, and is a plurality of form triangular supports structure between the branch.
Preferably, the inside of horizontal pole is the cavity setting, the inside fixedly connected with a plurality of reinforcing plates of horizontal pole, connect the buffering knot that sets up just to the arc on the horizontal pole.
Preferably, the two ends of the cross rod and the side rods are connected to one side of the main frame through bolts, and the setting lengths of the cross rod and the side rods are matched with the distances between the plurality of main frames.
Preferably, sink the groove and set up the degree of depth and be greater than connecting bolt upper end nut height, sink the groove setting position and connect the clamp both ends junction phase-match, the connection clamp is the arc setting.
Preferably, the corner block is arranged at a right angle, and the two ends of the corner block are provided with clamping grooves connected with the upper inclined plate.
Preferably, the reinforcing steel bars are vertically arranged and are connected with the annular steel net in an attaching mode.
Compared with the prior art, the invention has the beneficial effects that:
(1) the utility model discloses a device for supporting the body frame, including the body frame, the body frame is connected to the bottom plate, be connected the bottom plate of rectangle symmetry on the base plate, fixedly connected with body frame on the bottom plate, the bottom plate can provide great area of contact, be convenient for carry out the outrigger connection to the body frame, there are the branch of a plurality of slopes at the internal connection of body frame, a plurality of branches form the triangular supports, let the body frame form stable bearing structure, can support device overall framework, it is more stable to support, and be provided with the annular steel mesh in the inside of body frame, the inside laminating of annular steel mesh is connected with the reinforcing bar, the inside packing of annular steel mesh has the layer of pouring, let annular steel mesh and reinforcing bar body coupling, when confrontation external load, can improve the whole resistance of body frame, can bear bigger external load, the frame is more stable.
(2) The horizontal pole is connected with between the body frame of great distance, and the horizontal pole sets up for cavity, the whole weight of reducible device, and horizontal pole internal connection has the reinforcing plate, is connected with curved buffering knot in the middle part position of horizontal pole, between the body frame of great distance, when receiving external load, the atress is great, and the buffering knot can be fine cushions, avoids great load to cause the rigidity of horizontal pole to buckle, excellent in use effect.
(3) Go up the swash plate and carry out the buildding of installing the upper end, be equipped with the heavy groove of sinking in the one end of last swash plate, carry out placing of bolt through the heavy groove of sinking and connect, can avoid the arch of bolt upper end nut, the level and smooth connection of the upper end part of being convenient for, go up the swash plate upper end intersection and connect through the hornblock, connect excessively level and smooth, the installation of the upper end part of being convenient for uses to connect convenient high-efficient.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a top connection view of the main frame of the present invention;
FIG. 3 is a cross bar connection schematic of the present invention;
fig. 4 is an enlarged view of the structure at a in fig. 1 according to the present invention.
In the figure: 1. a main frame; 2. a strut; 3. a base plate; 4. a bolt; 5. a substrate; 6. a cross bar; 7. a reinforcing plate; 8. a buffer knot; 9. a side lever; 10. an upper sloping plate; 11. sinking the tank; 12. connecting a clamp; 13. A corner block; 14. a cross beam; 15. an annular steel mesh; 16. reinforcing steel bars; 17. and (6) pouring the layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a novel building frame structure for civil engineering, including a main frame 1, a support rod 2 connected inside the main frame 1, a bottom plate 3 fixedly connected to the bottom of the main frame 1, a bolt 4 connected to the bottom plate 3, a base plate 5 connected to the bottom plate 3 via the bolt 4, a cross bar 6 connected to the main frame 1 via the bolt, a buffer knot 8 connected to the cross bar 6, a side rod 9 connected to the main frame 1, an upper inclined plate 10 disposed on the upper end of the main frame 1, lower sinking slots 11 disposed on both ends of the upper inclined plate 10, a connection clamp 12 connected to the bottom of the upper inclined plate 10, a connection clamp 12 connected to the upper end of the main frame 1, a corner block 13 connected to the upper end of the upper inclined plate 10, a cross beam 14 connected to the bottom of the corner block 13, the cross beam 14 connected to the side rod 9, an annular steel mesh 15 disposed inside the main frame 1, and a steel bar 16 connected to the annular steel mesh 15, the annular steel net 15 is internally filled with a casting layer 17.
Specifically, as shown in fig. 1-4, the main frame 1 is set to four, the internal connection of the main frame 1 has a plurality of struts 2, the struts 2 are inclined, a triangular support structure is formed between the struts 2, the overall support of the frame structure is performed through the four main frames 1, and the plurality of struts 2 form a triangular support structure which can increase the stability of the main frame 1 and increase the overall strength of the device.
Specifically, as shown in fig. 1-4, the inside of horizontal pole 6 is the cavity setting, and a plurality of reinforcing plates 7 of the inside fixedly connected with of horizontal pole 6, connect on the horizontal pole 6 just to the buffering knot 8 that the arc set up, carry out the connection between two body framves 1 through horizontal pole 6, and the cavity of horizontal pole 6 sets up reducible device's whole weight, and inside reinforcing plate 7 is strengthened, when receiving load impact, curved buffering knot 8 can cushion, avoids the rigidity of device to buckle, and resistance performance is better.
Specifically, as shown in fig. 1 to 4, both ends of a cross bar 6 and a side bar 9 are connected to one side of the main frames 1 by bolts, the set length of the cross bar 6 and the side bar 9 is matched with the distance of a plurality of main frames 1, and the cross bar 6 and the side bar 9 are used for connecting components.
Specifically, as shown in fig. 1 to 4, the setting depth of the sink groove 11 is greater than the height of a nut at the upper end of the connecting bolt, the setting position of the sink groove 11 is matched with the joint at the two ends of the connecting clamp 12, the connecting clamp 12 is arranged in an arc shape, and the hidden connection of the connecting bolt is carried out through the sink groove 11, so that the connection of subsequent parts is prevented from being influenced by the protrusion caused by the connecting part at the upper end.
Specifically, as shown in fig. 1 to 4, the corner block 13 is arranged at a right angle, the two ends of the corner block 13 are provided with clamping grooves connected with the upper inclined plate 10, the upper inclined plates 10 at the two sides are connected through the corner block 13, the corner block 13 can fix the joint, and meanwhile, the smoothness of the corner is ensured, so that the subsequent components can be conveniently mounted and connected.
Specifically, as shown in fig. 1 to 4, the reinforcing bars 16 are vertically arranged, the reinforcing bars 16 are attached to and connected with the steel ring net 15, the vertically arranged reinforcing bars 16 can improve vertical tensile strength, and when an impact load is applied to the outside, the stability of the device is improved, so that the device is more stably connected.
The working principle and the using process of the invention are as follows: when the device is used, the rectangular symmetrical bottom plates 3 are connected on the base plate 5, the main frame 1 is fixedly connected on the bottom plates 3, the bottom plates 3 can provide a larger contact area to facilitate stable supporting connection of the main frame 1, the plurality of inclined support rods 2 are connected inside the main frame 1, the plurality of support rods 2 form triangular supports, the main frame 1 forms a stable supporting structure to support the whole frame of the device, the supporting is more stable, the annular steel mesh 15 is arranged inside the main frame 1, the reinforcing steel bars 16 are connected inside the annular steel mesh 15 in a laminating manner, the annular steel mesh 15 is filled with a pouring layer, the annular steel mesh 15 and the reinforcing steel bars 16 are integrally connected, when external load is resisted, the whole resistance of the main frame 1 can be improved, larger external load can be borne, the cross bars 6 are connected between the main frames 1 at a larger distance, the cross bars 6 are hollow, and the whole weight of the device can be reduced, 6 internally connected with reinforcing plate 7 of horizontal pole, middle part position at horizontal pole 6 is connected with curved buffering knot 8, between the body frame 1 of great distance, when receiving external load, the atress is great, buffering that buffering knot 8 can be fine, avoid great load to cause the rigidity of horizontal pole 6 to buckle, go up swash plate 10 and put up of the upper end of installing, the one end of going up swash plate 10 is equipped with sink groove 11 down, carry out placing of bolt through sink groove 11 and connect, can avoid the arch of bolt upper end nut, the level and smooth connection of the upper end part of being convenient for, it connects through hornblock 13 to go up swash plate 10 upper end intersection, it is excessively level and smooth to connect, the installation of the upper end part of being convenient for, use and connect convenient high efficiency.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a novel building frame construction for civil engineering and building engineering, includes body frame (1), its characterized in that: the inner connection of the main frame (1) is provided with a support rod (2), the bottom of the main frame (1) is fixedly connected with a bottom plate (3), the bottom plate (3) is connected with a bolt (4), the bottom plate (3) is connected with a base plate (5) through the bolt (4), the main frame (1) is connected with a cross rod (6) through the bolt, the cross rod (6) is connected with a buffering knot (8), the main frame (1) is connected with a side rod (9), the upper end of the main frame (1) is provided with an upper inclined plate (10), the two ends of the upper inclined plate (10) are provided with a lower sinking groove (11), the bottom of the upper inclined plate (10) is connected with a connecting clamp (12) through a bolt, the connecting clamp (12) is connected with the upper end of the main frame (1) in a clamping manner, the upper end of the upper inclined plate (10) is connected with a corner block (13), the bottom of the corner block (13) is connected with a cross beam (14), the main frame is characterized in that the cross beam (14) is connected with an upper end side rod (9), an annular steel mesh (15) is arranged inside the main frame (1), a reinforcing steel bar (16) is connected inside the annular steel mesh (15), and a pouring layer (17) is filled inside the annular steel mesh (15).
2. A novel frame structure for civil engineering works as claimed in claim 1, wherein: the main frame (1) sets up to four, the internal connection of main frame (1) has a plurality of branch (2), branch (2) are the slope setting, and are a plurality of form triangular supports structure between branch (2).
3. A novel frame structure for civil engineering works as claimed in claim 1, wherein: the inside of horizontal pole (6) is the cavity setting, the inside fixedly connected with a plurality of reinforcing plates (7) of horizontal pole (6), connect on horizontal pole (6) just to buffering knot (8) that the arc set up.
4. A novel frame structure for civil engineering works as claimed in claim 1, wherein: both ends of the cross rod (6) and the side rods (9) are connected to one side of the main frame (1) through bolts, and the setting lengths of the cross rod (6) and the side rods (9) are matched with the distances of the plurality of main frames (1).
5. A novel frame structure for civil engineering works as claimed in claim 1, wherein: sink groove (11) and set up the degree of depth and be greater than connecting bolt upper end nut height, sink groove (11) and set up position and connect clamp (12) both ends junction phase-match, connect clamp (12) and set up for the arc.
6. A novel frame structure for civil engineering works as claimed in claim 1, wherein: the angle block (13) is arranged at a right angle, and the two ends of the angle block (13) are provided with clamping grooves connected with the upper inclined plate (10).
7. A novel frame structure for civil engineering works as claimed in claim 1, wherein: the reinforcing steel bars (16) are vertically arranged, and the reinforcing steel bars (16) are attached to and connected with the annular steel net (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010224725.4A CN113445620B (en) | 2020-03-26 | 2020-03-26 | Novel building frame construction for civil and architectural engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010224725.4A CN113445620B (en) | 2020-03-26 | 2020-03-26 | Novel building frame construction for civil and architectural engineering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113445620A true CN113445620A (en) | 2021-09-28 |
| CN113445620B CN113445620B (en) | 2022-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010224725.4A Expired - Fee Related CN113445620B (en) | 2020-03-26 | 2020-03-26 | Novel building frame construction for civil and architectural engineering |
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| Country | Link |
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| CN (1) | CN113445620B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116950235A (en) * | 2023-08-09 | 2023-10-27 | 合肥水泥研究设计院有限公司 | Large-span prestress frame structure |
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|---|---|---|---|---|
| WO2017067115A1 (en) * | 2015-10-21 | 2017-04-27 | 苏文藏 | Shock-absorbing steel casting for constructional engineering |
| CN107419802A (en) * | 2017-08-10 | 2017-12-01 | 中冶天工集团天津有限公司 | A kind of Precast Concrete Frame and construction method |
| CN207032475U (en) * | 2017-06-30 | 2018-02-23 | 宿迁市明远建筑安装工程有限公司 | A kind of building iron building materials junction fastener |
| CN208299582U (en) * | 2018-05-10 | 2018-12-28 | 广东汉岂工业技术研发有限公司 | A kind of sealing structure of motor antidetonation cast-aluminum end cover |
| CN109372283A (en) * | 2018-11-22 | 2019-02-22 | 江西科技师范大学 | A kind of construction wall with seismic hardening performance |
| CN109538247A (en) * | 2018-12-28 | 2019-03-29 | 江苏建筑职业技术学院 | It is a kind of for building the concrete filled steel tube arch of gallery supporting |
| CN209670195U (en) * | 2019-01-30 | 2019-11-22 | 沈阳建筑大学 | A kind of assembling frame structure stress system |
| CN210104957U (en) * | 2019-05-21 | 2020-02-21 | 重庆建筑工程职业学院 | Assembled steel construction building |
-
2020
- 2020-03-26 CN CN202010224725.4A patent/CN113445620B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017067115A1 (en) * | 2015-10-21 | 2017-04-27 | 苏文藏 | Shock-absorbing steel casting for constructional engineering |
| CN207032475U (en) * | 2017-06-30 | 2018-02-23 | 宿迁市明远建筑安装工程有限公司 | A kind of building iron building materials junction fastener |
| CN107419802A (en) * | 2017-08-10 | 2017-12-01 | 中冶天工集团天津有限公司 | A kind of Precast Concrete Frame and construction method |
| CN208299582U (en) * | 2018-05-10 | 2018-12-28 | 广东汉岂工业技术研发有限公司 | A kind of sealing structure of motor antidetonation cast-aluminum end cover |
| CN109372283A (en) * | 2018-11-22 | 2019-02-22 | 江西科技师范大学 | A kind of construction wall with seismic hardening performance |
| CN109538247A (en) * | 2018-12-28 | 2019-03-29 | 江苏建筑职业技术学院 | It is a kind of for building the concrete filled steel tube arch of gallery supporting |
| CN209670195U (en) * | 2019-01-30 | 2019-11-22 | 沈阳建筑大学 | A kind of assembling frame structure stress system |
| CN210104957U (en) * | 2019-05-21 | 2020-02-21 | 重庆建筑工程职业学院 | Assembled steel construction building |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116950235A (en) * | 2023-08-09 | 2023-10-27 | 合肥水泥研究设计院有限公司 | Large-span prestress frame structure |
| CN116950235B (en) * | 2023-08-09 | 2024-03-29 | 合肥水泥研究设计院有限公司 | Large-span prestress frame structure |
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| Publication number | Publication date |
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| CN113445620B (en) | 2022-05-20 |
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