CN216340448U - Brace beam string beam - Google Patents
Brace beam string beam Download PDFInfo
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- CN216340448U CN216340448U CN202122948182.3U CN202122948182U CN216340448U CN 216340448 U CN216340448 U CN 216340448U CN 202122948182 U CN202122948182 U CN 202122948182U CN 216340448 U CN216340448 U CN 216340448U
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Abstract
The application relates to the technical field of building construction and discloses a brace beam string. The support device comprises an upper chord steel beam, a lower chord stay cable and a support rod assembly, wherein one end of the support rod assembly is hinged with the upper chord steel beam, and the other end of the support rod assembly is connected with the lower chord stay cable through a clamping plate assembly; the stay bar assembly comprises a diamond stay bar single body, the diamond stay bar single body comprises four inclined bars forming a diamond structure and a middle telescopic structure positioned on the transverse diagonal of the diamond structure, and the inclined bars are rotatable. This openly compare with traditional string beam structure, need not build stretch-draw operation platform and slip track in the work progress, practiced thrift the platform and built and demolish time and cost for the construction progress, it is convenient in grades to exert the prestressing force, but also can adjust the pulling force of cable after the cable stretch-draw is accomplished moreover, prevents that the prestressing force from relaxing. The construction process difficulty is small, the cost is low, the construction efficiency is improved, and the construction period is shortened.
Description
Technical Field
The application relates to the technical field of building construction, for example, relate to a vaulting pole beam string.
Background
The string beam structure is a large-span prestress self-balancing structure system developed in recent years, generally comprises three parts, namely an upper-string rigid compression steel beam or steel truss, a lower flexible prestress guy cable and a plurality of support rods between the upper-string rigid compression steel beam and the steel truss, and is basically characterized in that the support rods generate upward thrust by tensioning a lower-string high-strength guy cable, so that the upper-string rigid beam generates internal force opposite to that under the action of external load, the deformation of the whole structure is reduced, and the bearing capacity of the structure is improved. The beam string structure system is simple, is stressed clearly, has various structural forms, fully exerts the advantages of rigid and flexible materials, and is increasingly applied to large-span gymnasium engineering.
When the beam string structure is constructed and installed, the lower string stay cable is usually tensioned by a large tensioning jack, the requirement on equipment is high, the tensioning precision is difficult to control, and particularly for a large-span beam string structure, the stroke of the tensioning jack is large, and the equipment is more complicated.
SUMMERY OF THE UTILITY MODEL
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The utility model provides a vaulting pole opens string roof beam to the problem such as cable power lax after the cable tensioning difficulty, stretch-draw in the weakening opens string roof beam work progress provides a vaulting pole opens string roof beam structure and carries out stretch-draw to the cable, and the work progress is simple swift, can prevent that the cable power from lax.
In some embodiments, the bracing beam string comprises an upper chord steel beam, a lower chord stay and a bracing assembly, one end of the bracing assembly is hinged with the upper chord steel beam, and the other end of the bracing assembly is connected with the lower chord stay through a clamping plate assembly; the stay bar assembly comprises a diamond stay bar single body, the diamond stay bar single body comprises four inclined bars forming a diamond structure and a middle telescopic structure positioned on the transverse diagonal of the diamond structure, and the inclined bars are rotatable.
In some embodiments, the middle telescopic structure comprises a connecting pipe and a screw rod, the connecting pipe is located at two ends of the middle telescopic structure, the screw rod is in threaded connection with the connecting pipe, and a hinge point connected with the diagonal rod is arranged at the end, close to the diagonal rod, of the connecting pipe.
In some embodiments, the two ends of the screw rod are threaded in opposite directions, and the screw rod is used for adjusting the length of the middle telescopic structure.
In some embodiments, the middle telescopic structure comprises a turn buckle, the turn buckle comprises a connecting ring located in the middle and connecting rods located at two ends, the connecting rods are in threaded connection with the connecting ring, and hinge points connected with the diagonal rods are arranged at the ends, close to the diagonal rods, of the connecting rods.
In some embodiments, one end of each diamond-shaped stay rod monomer is hinged with the upper chord steel beam, and the other end of each diamond-shaped stay rod monomer is connected with the lower chord stay cable through the clamping plate assembly.
In some embodiments, the brace rod assembly comprises a plurality of diamond-shaped brace rods, each diamond-shaped brace rod comprises a plurality of diamond-shaped brace rod single bodies connected in the height direction of the brace rod, one end of each diamond-shaped brace rod is hinged to the upper chord steel beam, and the other end of each diamond-shaped brace rod is connected with the lower chord stay cable through the clamping plate assembly.
In some embodiments, a plurality of diamond-shaped brace single bodies are connected through middle splint nodes.
The strut beam string provided by the embodiment of the disclosure can realize the following technical effects:
this openly compare with traditional string beam structure, need not build stretch-draw operation platform and slip track in the work progress, practiced thrift the platform and built and demolish time and cost for the construction progress, it is convenient in grades to exert the prestressing force, but also can adjust the pulling force of cable after the cable stretch-draw is accomplished moreover, prevents that the prestressing force from relaxing. The construction process difficulty is small, the cost is low, the construction efficiency is improved, and the construction period is shortened.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic structural view of a bracing beam string according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of a diamond-shaped stay bar unit according to embodiment 1 of the present invention;
FIG. 3 is a schematic diagram of a middle telescopic structure in embodiment 1 of the present invention;
FIG. 4 is a schematic view of the diagonal member connection structure of the present invention;
fig. 5 is a schematic structural view of a bracing beam string structure according to embodiment 2 of the present invention;
FIG. 6 is a schematic view of a multi-diamond brace bar according to embodiment 2 of the present invention;
FIG. 7 is a schematic view of a turn buckle according to embodiment 3 of the present invention;
FIG. 8 shows the cable stress variation for different tensioning sequences according to the present invention.
Reference numerals:
1. the steel beam comprises an upper chord steel beam, 2 lower chord stay cables, 3 diamond stay rod monomers, 31, diagonal rods, 311, diagonal rod lug plates, 32, a middle telescopic structure, 321, a connecting pipe, 322, a screw rod, 323, a connecting rod, 324, a connecting ring, 33, hinge joints, 331, a joint main body, 332, a joint lug plate, 333, a pin shaft, 4, a splint component, 5, diamond stay rod upper end hinge joints, 6, a first identification position, 7, a second identification position and 8.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.
In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
With reference to fig. 1 to 8, the embodiment of the present disclosure provides a bracing beam string, including an upper chord steel beam 1, a lower chord stay cable 2 and a bracing assembly, where one end of the bracing assembly is hinged to the upper chord steel beam 1, and the other end of the bracing assembly is connected to the lower chord stay cable 2 through a clamping plate assembly 4; the stay bar assembly comprises a diamond-shaped stay bar single body 3, the diamond-shaped stay bar single body 3 comprises four inclined bars 31 forming a diamond-shaped structure and a middle telescopic structure 32 positioned on a transverse diagonal line of the diamond-shaped structure, and the inclined bars 31 can rotate.
By adopting the stay bar beam string provided by the embodiment of the disclosure, a tensioning operation platform and a sliding track are not required to be built in the construction process, the time and the cost for building and dismantling the platform are saved, the construction progress is accelerated, the prestress application is convenient in grading, the tension of the stay rope can be adjusted after the stay rope tensioning is finished, and the prestress is prevented from being loosened. The construction process difficulty is small, the cost is low, the construction efficiency is improved, and the construction period is shortened.
Example 1
As shown in fig. 1, 2, 3 and 4, a single-diamond strut beam string is provided, in which the middle telescopic structure 32 includes connecting pipes 321 at two ends and a screw rod 322 in threaded connection with the connecting pipes 321, and the ends of the connecting pipes 321 near the diagonal rods 31 are provided with hinge points 33 connected with the diagonal rods 31. Specifically, the connecting pipe 321 is a hollow steel pipe with one end in a T shape, the T-shaped structure is provided with a hinged point 33 connected with the rhombic inclined rod 31, the other end is provided with internal threads, two ends of the screw rod 322 are provided with positive and negative threads, the length of the cross rod can be adjusted by rotating the screw rod 322, the cross rod is contracted, the rhombic support rod is extended, and pretension is applied to the pull rope.
Example 2
As shown in fig. 5 and 6, the multi-diamond brace beam string structure is mainly different from the embodiment 1 in that the brace of the multi-diamond brace 8 string beam structure is a multi-diamond brace 8 formed by connecting a plurality of diamond brace single bodies 3 along the height direction of the brace, one end of the multi-diamond brace 8 is hinged to the upper chord steel beam 1, and the other end of the multi-diamond brace 8 is fixedly connected with the lower chord stay 2 through the clamping plate assembly 4. The positions of the diamond-shaped stay bar single bodies 3 which are connected with each other are hinged through the middle splint node. Many rhombus vaulting pole 8 accessible are adjusted a plurality of crossbeams length and are adjusted many rhombus vaulting pole 8's length, compare single rhombus vaulting pole string roof beam, and many rhombus vaulting pole string roof beam's control range is bigger, and the range of application is wider.
Example 3
The middle telescopic structure 32 in embodiments 1 and 2 may be a turn buckle as shown in fig. 7. The turn buckle comprises a connecting ring 324 at the middle and a connecting rod 323 at both ends, the connecting rod 323 is in threaded connection with the connecting ring 324, and the end of the connecting rod 323 near the diagonal rod 31 is provided with a hinge point 33 connected with the diagonal rod 31.
Specifically, the turn buckle may be formed by connecting two sections of round steel at both ends through a connecting ring 324 at the middle portion, one end of the round steel is T-shaped and has a hinge point 33 connected with the rhombic diagonal rod 31, the other end has an external thread, and the length of the cross rod can be adjusted by rotating the connecting ring 324 at the middle portion.
The following description will be given, taking example 1 as an example, of a construction and installation method of a bracing beam string, including:
and 7, sequentially extending the rhombic struts from one end to the other end. The screw rod 322 is rotated to the second identification position 7, the cross rod is contracted, the diamond-shaped stay bar is extended, and pretension is applied to the stay rope.
step 9, sequentially extending other rhombic supporting rods;
and step 10, rechecking the pretension force of the stay cable, and adjusting the length of the cross rod of the diamond stay bar at the middle part of the span string beam to enable the pretension force of the stay cable to meet the design requirement.
In addition, when the stay bar is used for tensioning the chord girder, the stay rope stress is controlled by adjusting the length of the middle telescopic structure of the diamond stay bar, the stay rope stress does not exceed the tensile strength of the stay rope in the construction process by adjusting, and the stay rope stress is the tensioning control stress after tensioning is finished.
The tensioning method of the guy cable of the beam string structure can be divided into the following steps: symmetrically extending the stay bars from two ends to the middle; symmetrically extending the stay bars from the middle to the two ends; the struts are extended in sequence from one end to the other. The inhaul cable stress generated by the stretching sequence of symmetrically stretching the supporting rods from the middle to the two ends is relatively high, but the inhaul cable stress limit value generated by symmetrically stretching the supporting rods from the two ends to the middle is maximum, and the inhaul cable stress change of three different stretching sequences can finally achieve the aim of controlling the stretching stress.
This openly compare with traditional string beam structure, need not build stretch-draw operation platform and slip track in the work progress, practiced thrift the platform and built and demolish time and cost for the construction progress, it is convenient in grades to exert the prestressing force, but also can adjust the pulling force of cable after the cable stretch-draw is accomplished moreover, prevents that the prestressing force from relaxing. The construction process difficulty is small, the cost is low, the construction efficiency is improved, and the construction period is shortened.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. The stay bar beam string is characterized by comprising an upper chord steel beam (1), a lower chord stay rope (2) and a stay bar component, wherein one end of the stay bar component is hinged with the upper chord steel beam (1), and the other end of the stay bar component is connected with the lower chord stay rope (2) through a clamping plate component (4);
the support rod assembly comprises a rhombic support rod single body (3), the rhombic support rod single body (3) comprises four inclined rods (31) forming a rhombic structure and a middle telescopic structure (32) located on a transverse diagonal of the rhombic structure, and the inclined rods (31) can rotate.
2. The beam string of brace member according to claim 1,
middle part extending structure (32) including be located connecting pipe (321) at both ends and with connecting pipe (321) threaded connection's lead screw (322), the tip that connecting pipe (321) are close to down tube (31) is provided with hinge point (33) be connected with down tube (31).
3. The beam string of brace member according to claim 2,
the thread directions of two ends of the screw rod (322) are opposite, and the screw rod (322) is used for adjusting the length of the middle telescopic structure (32).
4. The beam string of brace member according to claim 1,
the middle telescopic structure (32) comprises a turn buckle, the turn buckle comprises a connecting ring (324) positioned in the middle and connecting rods (323) positioned at two ends, the connecting rods (323) are in threaded connection with the connecting ring (324), and hinged points (33) connected with the inclined rods (31) are arranged at the end parts, close to the inclined rods (31), of the connecting rods (323).
5. The beam string stay according to any one of claims 1 to 4,
a plurality of one end of the rhombic stay bar single body (3) is hinged with the upper chord steel beam (1), and the other end of the rhombic stay bar single body is connected with the lower chord inhaul cable (2) through the clamping plate component (4).
6. The beam string stay according to any one of claims 1 to 4,
the vaulting pole subassembly includes many rhombus vaulting poles (8), many rhombus vaulting poles (8) include a plurality of that connect along vaulting pole direction of height rhombus vaulting pole monomer (3), the one end of many rhombus vaulting poles (8) with last string girder steel (1) is articulated, and the other end passes through splint subassembly (4) and is connected with last string cable (2).
7. The beam string of brace member according to claim 6,
the rhombic stay bar single bodies (3) are hinged through middle splint nodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122948182.3U CN216340448U (en) | 2021-11-29 | 2021-11-29 | Brace beam string beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122948182.3U CN216340448U (en) | 2021-11-29 | 2021-11-29 | Brace beam string beam |
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| CN216340448U true CN216340448U (en) | 2022-04-19 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898074A (en) * | 2021-10-26 | 2022-01-07 | 江苏科技大学 | Improve tensile membrane structure creep lax boundary support |
| CN115608817A (en) * | 2022-08-31 | 2023-01-17 | 山东智航数控设备有限公司 | Adjustable supercharging device |
| WO2023231073A1 (en) * | 2022-05-31 | 2023-12-07 | 长沙理工大学 | Combined reinforcing device and method for achieving prestress self-tensioning and secondary regulation and control |
| CN117386062A (en) * | 2023-12-12 | 2024-01-12 | 上海卓欧建筑(集团)有限公司 | Assembled symmetrical string roof beam bearing structure that props |
-
2021
- 2021-11-29 CN CN202122948182.3U patent/CN216340448U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113898074A (en) * | 2021-10-26 | 2022-01-07 | 江苏科技大学 | Improve tensile membrane structure creep lax boundary support |
| WO2023231073A1 (en) * | 2022-05-31 | 2023-12-07 | 长沙理工大学 | Combined reinforcing device and method for achieving prestress self-tensioning and secondary regulation and control |
| CN115608817A (en) * | 2022-08-31 | 2023-01-17 | 山东智航数控设备有限公司 | Adjustable supercharging device |
| CN115608817B (en) * | 2022-08-31 | 2023-12-29 | 山东智航数控设备有限公司 | Adjustable supercharging device |
| CN117386062A (en) * | 2023-12-12 | 2024-01-12 | 上海卓欧建筑(集团)有限公司 | Assembled symmetrical string roof beam bearing structure that props |
| CN117386062B (en) * | 2023-12-12 | 2024-02-20 | 上海卓欧建筑(集团)有限公司 | Assembled symmetrical string roof beam bearing structure that props |
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