CN100513727C - Prestressed bracing arrangement - Google Patents
Prestressed bracing arrangement Download PDFInfo
- Publication number
- CN100513727C CN100513727C CNB2007101772907A CN200710177290A CN100513727C CN 100513727 C CN100513727 C CN 100513727C CN B2007101772907 A CNB2007101772907 A CN B2007101772907A CN 200710177290 A CN200710177290 A CN 200710177290A CN 100513727 C CN100513727 C CN 100513727C
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- CN
- China
- Prior art keywords
- steel column
- fixedly connected
- plate
- support frame
- top board
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- 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.)
- Expired - Fee Related
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Abstract
The invention relates to a prestressed support device, which comprises a braced frame which is constituted by a bottom plate, a left lateral plate, a right lateral plate, and a top plate. A plurality of connection boards which are used for connecting the left lateral board and the right lateral board are arranged on both sides of the left lateral board and the right lateral board along the vertical direction, through holes are arranged on the four corners of the top plate, a big hole is arranged on the center of the top plate, a steel column is arranged in the braced frame, which is sleeved in the big hole of the top plate of the braced frame, both sides on the lower end of the steel column are fixedly connected with two steel column feet which are arranged on the outer side of the braced frame, a prestressed steel strand wire is respectively sleeved through two ends of each steel column foot, the lower end of each prestressed steel strand wire is fixedly connected with a crimping anchorage for supporting steel column feet, the upper ends of the four prestressed steel strand wires are respectively traversed through the four through holes of the top plate of the braced frame and are fixedly connected with clipping anchorages. The invention can provide anchorage force with high accuracy and excellent stability for supported constructions, and provides a prestressed support device which is easy for construction.
Description
Technical field
The present invention relates to the bracing or strutting arrangement in a kind of construction work, refer to a kind of prestressed bracing arrangement especially.
Background technology
Often use bracing or strutting arrangement in the work progress of construction work, bracing or strutting arrangement at present commonly used has the scaffold of setting up to support and jack adds the combined support of steel column.
Wherein, scaffold supports and belongs to passive bracing or strutting arrangement, promptly owing to after the structure stress distortion load is imposed on this device, it is just played a supporting role, this kind support is mainly used in the wet trade process of civil engineering structure, or the structural element that goes wrong is carried out protectiveness support, prevent aspects such as the further expansion of problem, but scaffold supports and can't apply support force accurately to works;
The combined support that jack adds steel column belongs to the Active support device, promptly with the support force effect structurally by jack, this kind bracing or strutting arrangement can be used in the work such as off-load of structural strengthening, but the combined support that jack adds steel column is in accuracy and apply aspect the degree of controllability in the process relatively poor, the support force error that promptly provides is very big, and work progress is not easy to operate; And the jack combined support that adds steel column structure is applied finish support force after, the continuous stability of this support force is difficult to control, deforms at strong point place as structure, support force can take place significantly to slacken.After this situation of generation, if will append support force at the former strong point, how accurately calculating is appended the size of power and how to be realized applying this power and all has very big difficulty.
Summary of the invention
The purpose of this invention is to provide a kind of support force that precision height, good stability can be provided supported structure, and constructing operation is easy to prestressed bracing arrangement.
For achieving the above object, the present invention takes following design scheme:
A kind of prestressed bracing arrangement is characterized in that, it comprises:
A support frame of forming by base plate, left plate, right plate and top board, the both sides of described left plate and right plate vertically are provided with some horizontal junction plates that are connected described left plate and right plate, described top board respectively is provided with a through hole for four jiaos, and described top board middle part is provided with a macropore;
A steel column that is positioned at support frame inside, described steel column is arranged in the macropore of the top board of described support frame, both sides are fixedly connected with two steel column foots that are positioned at the described support frame outside by steel column base plate upper side before and after the described steel column lower end, the two ends of each steel column foot self are equipped with a prestressing force steel hinge line respectively, and the lower end of the described prestressing force steel hinge line of each root is fixedly connected with an Extrusion anchor ground tackle that is used to push described steel column foot; The upper end of four prestressing force steel hinge lines pass respectively described support frame top board four through holes and fixedly connected with the intermediate plate ground tackle.
The top of described steel column is fixedly connected with the gripper shoe of an area greater than the cross-sectional area at described steel column top, is fixedly connected with stiffener between described gripper shoe bottom and the described steel column.
Advantage of the present invention is: the present invention is owing to adopt above design scheme, jack pair prestress wire by the support frame top carries out stretch-draw generation stretching force, this power is delivered to steel column foot by prestress wire, pass to steel column by the steel column base plate again, steel column is passed to power supported structure at last.The stretching force on support frame top is passed to ground by support frame.Prestressed bracing arrangement of the present invention utilizes the prestressing force steel hinge line to provide numerical value accurate support force for prestressed bracing arrangement, and support device structure is simple, good stability, constructing operation are simple and easy.
Description of drawings
Fig. 1 represents perspective view of the present invention
Fig. 2 represents master's TV structure schematic diagram of the present invention
Fig. 3 is the A-A cross-sectional schematic of Fig. 2
Fig. 4 is the B-B cross-sectional schematic of Fig. 2
Fig. 5 is the C-C cross-sectional schematic of Fig. 2
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, a kind of prestressed bracing arrangement of the present invention is characterized in that it comprises:
A support frame of forming by base plate 1, left plate 2, right plate 3 and top board 4, the both sides of left plate 2 and right plate 3 vertically are provided with some horizontal junction plates 5 that are connected left plate 2 and right plate 3, top board respectively is provided with a through hole 6 for 4 four jiaos, and top board 4 middle parts are provided with a macropore 7;
A steel column 8 that is positioned at support frame inside, steel column 8 is arranged in the macropore 7 of the top board of support frame, both sides are fixedly connected with two steel column foots 10 that are positioned at the support frame outside by steel column base plate 9 upper sides before and after steel column 8 lower ends, the two ends of each steel column foot 10 self are equipped with a prestressing force steel hinge line 11 respectively, and the lower end of each root prestressing force steel hinge line 11 is fixedly connected with an Extrusion anchor ground tackle 12 that is used to push steel column foot 10; The upper end of four prestressing force steel hinge lines 11 pass respectively support frame top board 4 four through holes 6 and fixedly connected with intermediate plate ground tackle 13.
The top of steel column 8 is fixedly connected with the gripper shoe 16 of an area greater than the cross-sectional area at steel column top, is fixedly connected with stiffener 14 between gripper shoe 16 bottoms and the steel column 8.
Groundwork step of the present invention and principle are as follows:
1, calculates the stretching force of every prestress wire 11 according to the needed support force of supported structure;
2, according to the intensity of stretching force and prestress wire 11, the stretch-draw length that modulus of elasticity calculates prestress wire 11;
3, calculate steel column 8 according to support force and support the axial compression distortion of tank bracket under the support force effect, and with this distortion numerical value all add calculate in the 2nd step stretch-draw length, as final stretch-draw length;
4, the utility model bracing or strutting arrangement assembling is finished, carried out stretch-draw (can be divided into several steps finish stretch-draw) by 15 pairs of prestress wires of jack 11.
5, to finish be after support force applies in stretch-draw, adopt the pulling force of vibratory string method at-once monitor prestress wire 11, the pulling force sum of all prestress wires 11 is compared with the required support force of supported structure, judge whether support force slackens, thereby determine whether to take stretch-draw measure once more, guarantee the stable of support force.
Claims (2)
1, a kind of prestressed bracing arrangement is characterized in that, it comprises:
A support frame of forming by base plate, left plate, right plate and top board, the both sides of described left plate and right plate vertically are provided with some horizontal junction plates that are connected described left plate and right plate, described top board respectively is provided with a through hole for four jiaos, and described top board middle part is provided with a macropore;
A steel column that is positioned at support frame inside, described steel column is arranged in the macropore of the top board of described support frame, both sides are fixedly connected with two steel column foots that are positioned at the described support frame outside by steel column base plate upper side before and after the described steel column lower end, the two ends of each steel column foot self are equipped with a prestressing force steel hinge line respectively, and the lower end of the described prestressing force steel hinge line of each root is fixedly connected with an Extrusion anchor ground tackle that is used to push described steel column foot; The upper end of four prestressing force steel hinge lines pass respectively described support frame top board four through holes and fixedly connected with the intermediate plate ground tackle.
2, prestressed bracing arrangement according to claim 1, it is characterized in that: the top of described steel column is fixedly connected with the gripper shoe of an area greater than the cross-sectional area at described steel column top, is fixedly connected with stiffener between described gripper shoe bottom and the described steel column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101772907A CN100513727C (en) | 2007-11-13 | 2007-11-13 | Prestressed bracing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101772907A CN100513727C (en) | 2007-11-13 | 2007-11-13 | Prestressed bracing arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101187262A CN101187262A (en) | 2008-05-28 |
| CN100513727C true CN100513727C (en) | 2009-07-15 |
Family
ID=39479819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101772907A Expired - Fee Related CN100513727C (en) | 2007-11-13 | 2007-11-13 | Prestressed bracing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100513727C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101629456B (en) * | 2009-08-18 | 2010-10-13 | 北京城建精工钢结构工程有限公司 | Three-dimensional steel truss assembling support frame shaped like a Chinese character qie and construction method for assembling steel truss |
| CN103075014A (en) * | 2013-02-06 | 2013-05-01 | 全恩懋 | Tensional anchoring system for secondary clamping of prestressed sheets |
-
2007
- 2007-11-13 CN CNB2007101772907A patent/CN100513727C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101187262A (en) | 2008-05-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA METALLURGICAL BUILDING GENERAL RESEARCH INST Free format text: FORMER OWNER: BEIJING CHINA METALLURGICAL ENGINEERING LTD. Effective date: 20091204 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091204 Address after: Beijing city Haidian District Xitucheng Road 33, zip code: 100088 Co-patentee after: China Jingye Engineering Technology Co., Ltd. Patentee after: China metallurgy Architecture Research Institute Co., Ltd. Address before: Beijing city Haidian District Xitucheng Road 33, zip code: 100088 Co-patentee before: Wu Mingchao Patentee before: China Jing Ye Engineering Technology Co., Ltd. Co-patentee before: Shang Renjie Co-patentee before: Liu Gang |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20141113 |
|
| EXPY | Termination of patent right or utility model |