CN111424820B - Concrete beam with vibration adjustment structure and construction method thereof - Google Patents
Concrete beam with vibration adjustment structure and construction method thereof Download PDFInfo
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- CN111424820B CN111424820B CN202010371417.4A CN202010371417A CN111424820B CN 111424820 B CN111424820 B CN 111424820B CN 202010371417 A CN202010371417 A CN 202010371417A CN 111424820 B CN111424820 B CN 111424820B
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- steel beam
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- 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
- E04B1/30—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts being composed of two or more materials; Composite steel and concrete constructions
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- 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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- 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
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/293—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being steel and concrete
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Environmental & Geological Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a concrete beam with a vibration adjusting structure and a construction method thereof, wherein the concrete beam with the vibration adjusting structure comprises a concrete beam arranged between two concrete columns and a first steel beam arranged between the two concrete columns, wherein the first steel beam and the concrete beam are arranged at intervals up and down, and the concrete beam is connected with the first steel beam through a second steel beam which is symmetrically arranged; one end of each second steel beam is fixedly connected to the concrete beam, the other end of each second steel beam is obliquely arranged from the second steel beam to the first steel beam, each second steel beam is arranged in a gap with the first steel beam, and the second steel beams are connected with the first steel beam through vibration reduction connecting assemblies. The invention has the advantages of ingenious structure, simple construction, good vibration reduction effect and high safety, and the first steel beam and the second steel beam are fastened to form a whole after being stressed and deformed, and vertical pre-stressing between the first steel beam and the second steel beam can bear vibration deformation energy generated by production equipment, so that the vibration energy of the concrete beam is reduced.
Description
Technical Field
The invention relates to the field of buildings, in particular to a concrete beam with a vibration adjusting structure and a construction method of the concrete beam.
Background
Along with the rapid development of industry, the existing industrial building also has a traditional single-layer industrial factory building developed into a multi-layer or high-layer concrete frame factory building, so that production equipment is correspondingly transferred onto the floor slab of the concrete frame factory building from the ground of the traditional factory building. However, the production equipment often produces certain vibration to the concrete beam that can periphery in the operation in-process, produces resonance effect even with the concrete beam, not only influences the precision of production equipment, still seriously influences the structural stability of concrete beam, has great potential safety hazard, brings the discomfort to the staff in the factory building. Therefore, the rigidity is often improved by enlarging the cross sections of the concrete beam and the concrete column in actual construction, the damping effect is poor, and larger vibration still can be generated in actual production. Thus, how to reduce vibration of the Shanghai concrete beam is an important problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a concrete beam with a vibration adjusting structure, and also provides a construction method of the concrete beam, so that vibration reduction of the concrete beam is realized, and the vibration reduction effect is good.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The concrete beam with the vibration reduction adjusting structure comprises a concrete beam arranged between two concrete columns and a first steel beam arranged between the two concrete columns, wherein the first steel beam and the concrete beam are arranged at intervals up and down, and the concrete beam is connected with the first steel beam through a second steel beam which is symmetrically arranged;
One end of each second steel beam is fixedly connected to the concrete beam, the other end of each second steel beam is in clearance arrangement with the first steel beam, the other end of each second steel beam is connected with the first steel beam through a vibration reduction connecting assembly, the vibration reduction connecting assembly comprises a connecting steel plate and at least two adjusting screws, the connecting steel plate is fixedly connected with a web plate of the second steel beam through at least two connecting bolts, the end parts of the connecting steel plate are welded with the first steel beam, each adjusting screw sequentially penetrates through the second steel beam and the first steel beam which are close to the connecting steel plate, and the end parts of the adjusting screws are in threaded connection with adjusting nuts.
The two ends of the first steel beam are respectively fixedly connected with a first steel plate pre-buried on the concrete column, and one end of the second steel beam is fixedly connected with a second steel plate pre-buried on the concrete beam.
And stiffening ribs for increasing strength are arranged on the first steel beam at intervals.
At least two elongated bolt holes matched with the connecting bolts are formed in the connecting steel plate.
And the end part of each adjusting screw is penetrated with a cushion block with a triangular structure, and the inclined surface of each cushion block is attached to the flange plate of the second steel beam.
The invention provides a construction method of a concrete beam with a vibration reduction adjusting structure, which comprises the following steps:
Pouring a concrete beam between two concrete columns, pre-burying a first steel plate on each concrete column according to a designed position, and pre-burying a second steel plate on the concrete beam;
secondly, hanging and installing a first steel beam, and welding two ends of the first steel beam with a first steel plate respectively;
Thirdly, hanging and installing a second steel beam, welding one end of the second steel beam on a second steel plate, setting a gap between the other end of the second steel beam and the first steel beam, and obliquely extending the second steel beam from the concrete beam to the first steel beam;
Welding one end of the connecting steel plate on the first steel beam according to the design position, then sequentially penetrating through the cushion block, the second steel beam and the first steel beam close to the connecting steel plate by using the adjusting screw, fastening the first steel beam and the second steel beam together by using the adjusting nut to enable the adjusting screw to be in a stress state;
and fifth, repeating the third step and the fourth step, welding one end of the other second steel beam on the second steel plate, and fixedly connecting the other end of the second steel beam with the first steel beam by using the connecting steel plate and the adjusting screw.
The invention has the advantages of ingenious structure and simple construction, the first steel beam and the second steel beam are horizontally arranged between the concrete beam and the concrete column, and are fastened to form a whole after being stressed and deformed, and the vertical pre-stress between the first steel beam and the second steel beam can bear the vibration deformation energy generated by production equipment, so that the vibration energy of the concrete beam is reduced, the vibration reduction effect is good, and the safety is high. Meanwhile, the optimal deformation of the first steel beam and the second steel beam can be adjusted by adjusting the fastening strength of the nuts on the screw rods, so that the optimal vertical pre-stressing force between the first steel beam and the second steel beam is determined.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is an enlarged view of the junction of the first steel beam and the second steel beam.
Fig. 3 is a schematic perspective view of the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings, and the embodiments and specific operation procedures are given by the embodiments of the present invention under the premise of the technical solution of the present invention, but the scope of protection of the present invention is not limited to the following embodiments.
As shown in fig. 1-3, the concrete beam with the vibration reduction adjusting structure comprises a concrete beam 2 and a first steel beam 3 which are arranged between two concrete columns 1, wherein the first steel beam 3 is arranged above the concrete beam 2 in parallel (of course, according to actual requirements, the concrete beam 2 and the first steel beam 3 can also be arranged below the concrete beam 2), the concrete beam 2 and the first steel beam 3 are connected through two symmetrically arranged second steel beams 4, and the first steel beam 3 and the second steel beam 4 are I-shaped steel beams;
The two ends of the first steel beam 3 are respectively welded with a first steel plate 5 (the anchor bars of the first steel plate 5 are bound with the steel bars of the concrete column 1) pre-buried at the side surface of the concrete column 1;
the bottoms of the two second steel beams 4 are welded on a second steel plate 6 at the middle part of the concrete beam 2, each second steel beam 4 obliquely extends from the middle part of the concrete to the first steel beam 3, and the two second steel beams 4 are of a V-shaped structure;
The top of each second steel beam 4 is arranged at a gap with the first steel beam 3, the top of each second steel beam 4 is connected with the first steel beam 3 through a vibration reduction connecting assembly, the vibration reduction connecting assembly comprises a connecting steel plate 7.1 and two adjusting screws 7.2 which are vertically arranged, the top of the connecting steel plate 7.1 is welded on the lower flange plate of the first steel beam 3, the connecting steel plate 7.1 is fixedly connected with the web plate of the second steel beam 4 through two connecting bolts 7.3, each adjusting screw 7.2 sequentially penetrates through a cushion block 7.4 (the inclined surface of the cushion block is attached to the upper flange plate of the second steel plate 6) in a triangular structure from bottom to top, the upper flange plate of the second steel beam 4 close to the connecting steel plate 7.1 and the lower flange plate of the first steel beam 3, the adjusting nuts 7.5 for adjusting the deformation of the first steel beam 3 and the second steel beam 4 are screwed on the upper portions of the adjusting screws 7.2, vibration energy born by the concrete beam 2 is adjusted through the fastening degree of the adjusting nuts 7.5, vibration energy generated by production equipment is transmitted to the first steel beam 3 and the second steel beam 4, the vibration energy generated by the production equipment is well distributed symmetrically, and the vibration reduction effect of the two adjusting screws 7.2 is guaranteed.
As shown in fig. 2, two rectangular bolt holes 7.6 are symmetrically formed in the connecting steel plate 7.1, the top of the second steel beam 4 is of a U-shaped structure, the installation is convenient, and the quick connection between the connecting steel plate 7.1 and the second steel beam 4 can be realized. Stiffening ribs 8 are welded on the first steel beam 3 at intervals, so that the strength of the first steel beam 3 is increased.
The construction method of the concrete beam comprises the following steps:
Firstly, constructing a concrete column 1, embedding a first steel plate 5 (an anchor bar of the first steel plate 5 is overlapped with a steel bar of the concrete column 1) at a design position of the concrete column 1, constructing a concrete beam 2, and embedding a second steel plate 6 at a middle design position of the concrete beam 2;
Secondly, hanging and installing the first steel beam 3, welding stiffening ribs 8 on the first steel beam 3 at intervals during installation to increase the strength of the first steel beam 3, and then respectively welding two ends of the first steel beam 3 on the first steel plate 5;
Thirdly, hanging and installing a second steel beam 4, cutting the bottom of the second steel beam 4 down according to the design inclination angle of the second steel beam 4, cutting off the same sides of two flange plates at the upper end of the second steel beam to form a U-shaped structure, polishing a web plate of the second steel beam 4 corresponding to the U-shaped structure, polishing and reserving two bolt holes, and then welding the bottom of the second steel beam 4 on a second steel plate 6;
Welding the top of a connecting steel plate 7.1 at the design position of a lower flange plate of a first steel beam 3, sequentially penetrating through a triangular cushion block 7.4, an upper flange plate of a second steel beam 4 and a lower flange plate of the first steel beam 3 from bottom to top, fastening the two adjusting screw rods 7.2 by adjusting nuts 7.5 to enable the second steel beam 4 and the first steel beam 3 to be in a stressed deformation state, fastening a web plate of the second steel beam 4 and the connecting steel plate 7.1 together by bolts (generally high-strength bolts), and releasing the adjusting nuts 7.5 to enable the adjusting screw rods 7.2 to be in a non-stressed state;
and fifth, repeating the third step and the fourth step, welding one end of the other second steel beam 4 on the second steel plate 6, and fixedly connecting the other end of the other second steel beam with the first steel beam 3 by using a connecting steel plate and an adjusting screw. After the construction is completed, the two second steel beams are symmetrically distributed in a V-shaped structure.
The invention makes the first steel beam and the second steel beam in a deformed state by fastening the nuts on the adjusting screw rods during installation, and then fastens the first steel beam and the second steel beam into a whole by utilizing the high-strength bolts. When the concrete beam vibrates, vibration energy generated by production equipment is jointly born by the first steel beam and the second steel beam, and vibration energy born by the concrete beam is reduced.
In the description of the present invention, it should be noted that the terms "front", "rear", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
Claims (4)
1. The concrete beam with the vibration reduction adjusting structure is characterized by comprising a concrete beam arranged between two concrete columns and a first steel beam arranged between the two concrete columns, wherein the first steel beam and the concrete beam are arranged at intervals up and down, and the concrete beam is connected with the first steel beam through a second steel beam which is symmetrically arranged;
One end of each second steel beam is welded on a second steel plate in the middle of the concrete beam, each second steel beam extends obliquely from the middle of the concrete to the first steel beam, and the two second steel beams are of a V-shaped structure;
Each second steel beam is in clearance arrangement with the first steel beam, each second steel beam is connected with the first steel beam through a vibration reduction connecting assembly, the vibration reduction connecting assembly comprises a connecting steel plate and at least two adjusting screws, the connecting steel plate is fixedly connected with a web plate of the second steel beam through at least two connecting bolts, and the end parts of the connecting steel plate are welded with the first steel beam;
The two ends of the first steel beam are respectively fixedly connected with a first steel plate pre-buried on the concrete column, and stiffening ribs for increasing strength are arranged on the first steel beam at intervals.
2. The concrete beam with the vibration reduction adjusting structure according to claim 1, wherein the connecting steel plate is provided with at least two strip-shaped bolt holes matched with the connecting bolts.
3. The concrete beam with the vibration reduction adjusting structure according to claim 1, wherein the end part of each adjusting screw rod is provided with a cushion block in a penetrating way, and the inclined surface of the cushion block is attached to the flange plate of the second steel beam.
4. The method for constructing a concrete beam according to claim 1, comprising the steps of:
Pouring a concrete beam between two concrete columns, pre-burying a first steel plate on each concrete column according to a designed position, and pre-burying a second steel plate on the concrete beam;
secondly, hanging and installing a first steel beam, and welding two ends of the first steel beam with a first steel plate respectively;
Thirdly, hanging and installing a second steel beam, welding one end of the second steel beam on a second steel plate, setting a gap between the other end of the second steel beam and the first steel beam, and obliquely extending the second steel beam from the concrete beam to the first steel beam;
Welding one end of the connecting steel plate on the first steel beam according to the design position, then sequentially penetrating through the cushion block, the second steel beam and the first steel beam close to the connecting steel plate by using the adjusting screw, fastening the first steel beam and the second steel beam together by using the adjusting nut to enable the adjusting screw to be in a stress state;
and fifth, repeating the third step and the fourth step, welding one end of the other second steel beam on the second steel plate, and fixedly connecting the other end of the second steel beam with the first steel beam by using the connecting steel plate and the adjusting screw.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010371417.4A CN111424820B (en) | 2020-05-06 | 2020-05-06 | Concrete beam with vibration adjustment structure and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010371417.4A CN111424820B (en) | 2020-05-06 | 2020-05-06 | Concrete beam with vibration adjustment structure and construction method thereof |
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| CN111424820A CN111424820A (en) | 2020-07-17 |
| CN111424820B true CN111424820B (en) | 2025-03-04 |
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| CN115341712A (en) * | 2022-09-20 | 2022-11-15 | 苏州思萃融合基建技术研究所有限公司 | Steel joint concrete precast beam component and installation and construction method thereof |
| CN117988566A (en) * | 2024-03-18 | 2024-05-07 | 中建钢构股份有限公司 | Vibration rod pre-tightening construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN212153711U (en) * | 2020-05-06 | 2020-12-15 | 机械工业第六设计研究院有限公司 | Concrete beam with damping adjustment structure |
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| JP5189275B2 (en) * | 2006-11-10 | 2013-04-24 | 株式会社ジェイアール総研エンジニアリング | Installation method of seismic reinforcement members |
| JP2009228276A (en) * | 2008-03-21 | 2009-10-08 | Tokai Rubber Ind Ltd | Vibration control damper and mounting structure thereof |
| CN202831237U (en) * | 2012-09-12 | 2013-03-27 | 清华大学 | Shaft flange joint structure for assembly-type cold rolled section steel structure connection |
| DE102013103042A1 (en) * | 2013-03-26 | 2014-10-02 | Dorma Gmbh + Co. Kg | Mobile wall element |
| CN105780994B (en) * | 2016-03-30 | 2018-12-04 | 南昌大学 | The accentric support steel frame composite floor and its construction method of Self-resetting after a kind of shake |
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| CN212153711U (en) * | 2020-05-06 | 2020-12-15 | 机械工业第六设计研究院有限公司 | Concrete beam with damping adjustment structure |
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