CN115341753B - Template for shear key of steel structure roof support and template supporting method - Google Patents
Template for shear key of steel structure roof support and template supporting method Download PDFInfo
- Publication number
- CN115341753B CN115341753B CN202211053817.6A CN202211053817A CN115341753B CN 115341753 B CN115341753 B CN 115341753B CN 202211053817 A CN202211053817 A CN 202211053817A CN 115341753 B CN115341753 B CN 115341753B
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- positioning
- shaping box
- shear key
- template
- box
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- 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
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
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- 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
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
-
- 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
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention provides a template for a shear key of a steel structure roof support, which relates to the technical field of support shear resistance and comprises a positioning rod, a balancing weight and a shaping box capable of accommodating the shear key; the upper end of the shaping box is provided with an opening, and the balancing weight is placed in the shaping box; the locating rods are arranged in a plurality, the locating rods are horizontally and detachably connected to the upper end of the shaping box, and one end, far away from the shaping box, of each locating rod is provided with a fixing structure for fixing the locating rods on the steel structure column head. The invention also provides a method for supporting the formwork of the steel structure roof support shear key. The method solves the problem that in the prior art, the construction quality is difficult to guarantee due to the fact that shear key grooves are reserved in a mode of manufacturing a box by using a common template or adopting an embedded extruded sheet and the like.
Description
Technical Field
The invention relates to the technical field of support shearing resistance, in particular to a template for a steel structure roof support shearing key and a template supporting method.
Background
The steel structure has the characteristics of high strength, light dead weight, good overall rigidity and strong deformation resistance, so the steel structure is particularly suitable for building large-span and super-high and super-heavy buildings; the reinforced concrete structure uses the steel bars to bear the tension and the concrete to bear the pressure, and has the advantages of firmness, durability, good fireproof performance, steel saving, low cost and the like compared with the steel structure. Therefore, the steel structure and the reinforced concrete structure are combined and used in a plurality of engineering projects, so that the purposes of economy, applicability and durability are achieved by utilizing the respective performance advantages.
In the current steel structure support design, shear keys are arranged when the shearing force exceeds the friction force between a column head and concrete, a common template is generally adopted for manufacturing a box or an embedded extruded sheet is adopted for reserving shear key grooves in the support position shear key template construction site, and fillers are removed for shear key construction after concrete pouring is completed. But the quality of the general templates and the extruded sheets is smaller, disturbance deviation is very easy to receive in the construction process, meanwhile, the conditions of uncleanness in the process of removing the templates and the extruded sheets are easy to occur, and the construction quality of the shear keys of the steel structure roof is difficult to guarantee.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a template for a shear key of a steel structure roof support and a template supporting method, which solve the problem that the construction quality is difficult to guarantee due to the fact that a common template is adopted to manufacture a box or a pre-buried extruded sheet is adopted to reserve a shear key groove in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a template for a shear key of a steel structure roof support comprises a positioning rod, a balancing weight and a shaping box capable of accommodating the shear key;
the upper end of the shaping box is provided with an opening, and the balancing weight is placed in the shaping box;
the locating rods are arranged in a plurality, the locating rods are horizontally and detachably connected to the upper end of the shaping box, and one end, far away from the shaping box, of each locating rod is provided with a fixing structure for fixing the locating rods on the steel structure column head.
Preferably, the fixed knot constructs including the slider, is equipped with on the slider and supplies the through-hole that the locating lever passed, vertical fixed locating plate on the slider, the locating plate is close to one side of sizing box is close to with the slider one side of sizing box is in the coplanar, be equipped with the external screw thread on the locating lever, the cover is equipped with the spacer sleeve on the locating lever, be equipped with in the spacer sleeve with external screw thread complex internal screw thread, just the spacer sleeve is located the slider is kept away from one side of sizing box.
Preferably, the locating rod comprises two groups of locating rod groups which are vertically fixed, each group of locating rod groups comprises two locating rods which are parallel to each other, the four locating rods form a similar 'well' -shaped structure, and four sides of an opening at the upper end of the shaping box are detachably connected below the four locating rods in a one-to-one correspondence mode.
Preferably, a positioning reinforcement cage for accommodating the balancing weights is fixedly connected below the four positioning rods, and the positioning reinforcement cage is positioned in the shaping box.
The invention also provides a method for supporting the formwork of the steel structure roof support shear key, which comprises the following steps:
s1: adjusting the fixing structure to perform preliminary positioning;
s2: and pouring concrete into the column head, and reserving the concrete quantity of the shear key groove.
S3: placing the sizing box and the positioning reinforcement cage in the column head, and adjusting the fixing structure to accurately position;
s4: placing a balancing weight;
s5: and taking out the template.
Preferably, in the step S1, 30mm is reserved between the positioning plate and the column head during preliminary positioning.
Preferably, in the step S4, after the balancing weight is placed, the concrete condition in the column head is checked, and the poured concrete is timely supplemented.
Preferably, in the step S5, the fixing structure is removed first, and then the balancing weight, the positioning rod and the positioning reinforcement cage are removed, without removing the shaping box.
Compared with the prior art, the invention has the following beneficial effects:
the fixing structure is adopted, so that the position can be conveniently adjusted on site according to the size of the column head, and the positioning is accurate; by adopting the detachable shaping box, when the template is removed, the shaping box is not required to be removed, the condition that the removal is not clean easily occurs in the removal process is avoided, and the construction quality of the shear key of the steel structure roof is ensured.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a schematic diagram of an embodiment of the present invention.
FIG. 3 is a schematic diagram of an embodiment of the present invention.
In the above figures: 1. a positioning rod; 2. balancing weight; 3. a shaping box; 41. a slide block; 411. a through hole; 42. a positioning plate; 43. a positioning sleeve; 5. and positioning the reinforcement cage.
Detailed Description
In order to make the technical means, creation characteristics, achievement of the purpose and function of the present invention more clear and easy to understand, the technical scheme of the present invention is further described below with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to 3, the embodiment of the invention provides a formwork for a shear key of a steel structure roof support, which comprises a positioning rod 1, a balancing weight 2 and a shaping box 3 capable of accommodating the shear key; the upper end of the shaping box 3 is provided with an opening, and the balancing weight 2 is placed in the shaping box 3; the locating rods 1 are provided with a plurality of locating rods 1, the locating rods 1 are horizontally and detachably connected to the upper end of the shaping box 3, and one end, away from the shaping box 3, of each locating rod 1 is provided with a fixing structure for fixing the locating rods 1 on a steel structure column.
The sizing box 3 gives room for installing the shear keys; the positioning rods 1 are arranged and used for fixing the sizing boxes 3, when the number of the positioning rods 1 is at least two, and the number of the positioning rods 1 is two, the end parts, which are not connected with the sizing boxes 3, of the positioning rods 1 are limited on the column head through the fixing structure, so that the movement of the sizing boxes 3 in the horizontal direction is limited to a certain extent, the movement of the sizing boxes 3 is avoided, the positions can be adjusted on site according to requirements, and the construction size and the positioning accuracy of the shear key grooves are well ensured; the shaping box 3 is detachably connected with the positioning rod 1, so that the positioning rod 1 can be detached without detaching the shaping box 3 when the template is detached, and the condition that the detachment is not clean in the detachment process is avoided; the fixing structure can be convenient to detach and repeatedly use for many times, so that the cost is saved; the balancing weight 2 can provide gravity, plays a certain role in fixing the position of the shaping box 3, and the balancing weight 2 can play a role in extruding concrete, so that not only can the gap possibly caused by the original mode of reserving the template filler be avoided, but also the compactness of concrete at other positions except for the shear key groove can be better ensured.
The method comprises the steps of constructing a shear key groove size length width shrinkage ruler according to requirements to manufacture a balancing weight 2, and putting the balancing weight 2 into a sizing box 3 smoothly; the shaping box 3 is manufactured by using a disassembly-free metal template and can be bound with the positioning rod 1 through steel wires.
As shown in fig. 1 to 3, the fixing structure comprises a sliding block 41, a through hole 411 for passing through the positioning rod 1 is formed in the sliding block 41, a positioning plate 42 is vertically fixed on the sliding block 41, one side, close to the shaping box 3, of the positioning plate 42 is in the same plane with one side, close to the shaping box 3, of the sliding block 41, an external thread is formed in the positioning rod 1, a positioning sleeve 43 is sleeved on the positioning rod 1, an internal thread matched with the external thread is formed in the positioning sleeve 43, and the positioning sleeve 43 is located on one side, far away from the shaping box 3, of the sliding block 41. The sliding block 41 can move on the positioning rod 1, and the positioning plate 42 is arranged, so that when positioning is performed, the sliding block 41 and the positioning plate 42 are in contact with the column head, and are in threaded fit with the positioning rod 1 through the positioning sleeve 43, and the positioning sleeve 43 and the column head clamp and fix the positioning plate 42 so as to prevent the positioning rod 1 from driving the positioning box 3 to move horizontally.
As shown in fig. 1, the positioning rod 1 includes two sets of positioning rods fixed vertically, each set of positioning rods includes two positioning rods 1 parallel to each other, four positioning rods 1 form a structure similar to a "well" shape, and the four positioning rods 1 are matched with a fixing structure provided at an end portion, so that a fixing effect can be improved; the four sides of the upper end opening of the shaping box 3 are detachably connected below the four positioning rods 1 in a one-to-one correspondence mode, and the balancing weight 2 is conveniently placed in the shaping box.
As shown in fig. 2, a positioning reinforcement cage 5 for accommodating the balancing weights 2 is fixedly connected below the four positioning rods 1, and the positioning reinforcement cage 5 is positioned in the shaping box 3. The positioning reinforcement cage 5 is manufactured by a steel reduced scale with the diameter of 10mm by 20 mm; when dismantling, after dismantling the sizing box 3, can take out location reinforcement cage 5 together with balancing weight 2 through upwards moving locating lever 1, be convenient for remove balancing weight 2.
The invention also provides a method for supporting the formwork of the steel structure roof support shear key, which comprises the following steps:
s1: adjusting the fixing structure to perform preliminary positioning;
s2: and pouring concrete into the column head, and reserving the concrete quantity of the shear key groove.
S3: placing the sizing box 3 and the positioning reinforcement cage 5 in the column head, and adjusting the fixing structure to accurately position;
s4: placing a balancing weight 2;
s5: and taking out the template.
In the step S1, 30mm is reserved between the positioning plate 42 and the column head during preliminary positioning. And a reserved amount is reserved, so that the accurate adjustment of the positioning is convenient to follow.
In the step S2, the concrete quantity of the shear key groove cannot be accurately reserved, so that the defect of the concrete quantity is overcome, and in the step S4, after the balancing weight 2 is placed, the condition of the concrete in the column head is checked, and the poured concrete is timely supplemented. After the balancing weight 2 is placed, the concrete vibrating rod can be matched to extrude the concrete around, so that the compactness of the concrete is ensured.
In the step S5, the fixing structure is removed firstly, then the balancing weight 2, the positioning rod 1 and the positioning steel bar framework 5 are taken out, the forming box 3 does not need to be taken out, and quality risks of slag inclusion, unclean rejection and the like of the original template and the filler are avoided.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (5)
1. A template for steel construction roofing support shear key, its characterized in that: comprises a positioning rod (1), a balancing weight (2) and a shaping box (3) which can accommodate shear keys;
the upper end of the shaping box (3) is provided with an opening, and the balancing weight (2) is placed in the shaping box (3);
the positioning rods (1) are arranged in a plurality, the positioning rods (1) are horizontally and detachably connected to the upper end of the shaping box (3), and a fixing structure for fixing the positioning rods (1) on a steel structure column head is arranged at one end, away from the shaping box (3), of the positioning rods (1);
the fixing structure comprises a sliding block (41), a through hole (411) for the positioning rod (1) to pass through is formed in the sliding block (41), a positioning plate (42) is vertically fixed on the sliding block (41), one side, close to the shaping box (3), of the positioning plate (42) is located on the same plane with one side, close to the shaping box (3), of the sliding block (41), external threads are formed in the positioning rod (1), a positioning sleeve (43) is sleeved on the positioning rod (1), internal threads matched with the external threads are formed in the positioning sleeve (43), and the positioning sleeve (43) is located on one side, far away from the shaping box (3), of the sliding block (41);
the positioning rods (1) comprise two groups of positioning rod groups which are vertically fixed, each group of positioning rod groups comprises two positioning rods (1) which are parallel to each other, the four positioning rods (1) form a similar 'well' -shaped structure, and four sides of an opening at the upper end of the shaping box (3) are detachably connected below the four positioning rods (1) in a one-to-one correspondence mode respectively;
the positioning reinforcement cage (5) for accommodating the balancing weights (2) is fixedly connected below the four positioning rods (1), and the positioning reinforcement cage (5) is positioned in the shaping box (3).
2. A method of bracing a formwork for a steel structural roofing support shear key as claimed in claim 1, comprising the steps of:
s1: adjusting the fixing structure to perform preliminary positioning;
s2: pouring concrete into the column head, and reserving the concrete quantity of the shear key groove;
s3: placing the sizing box (3) and the positioning reinforcement cage (5) in the column head, and adjusting the fixing structure to accurately position;
s4: placing a balancing weight (2);
s5: and taking out the template.
3. A method of bracing a formwork for a steel structural roofing support shear key as claimed in claim 2, wherein: in the step S1, 30mm is reserved between the positioning plate (42) and the column head during preliminary positioning.
4. A method of bracing a formwork for a steel structural roofing support shear key as claimed in claim 2, wherein: in the step S4, after the balancing weight (2) is placed, the concrete condition in the column head is checked, and the pouring concrete is timely supplemented.
5. A method of bracing a formwork for a steel structural roofing support shear key as claimed in claim 2, wherein: in the step S5, the fixing structure is removed firstly, and then the balancing weight (2), the positioning rod (1) and the positioning steel bar framework (5) are taken out, so that the forming box (3) does not need to be taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211053817.6A CN115341753B (en) | 2022-08-31 | 2022-08-31 | Template for shear key of steel structure roof support and template supporting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211053817.6A CN115341753B (en) | 2022-08-31 | 2022-08-31 | Template for shear key of steel structure roof support and template supporting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115341753A CN115341753A (en) | 2022-11-15 |
| CN115341753B true CN115341753B (en) | 2023-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211053817.6A Active CN115341753B (en) | 2022-08-31 | 2022-08-31 | Template for shear key of steel structure roof support and template supporting method |
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| CN (1) | CN115341753B (en) |
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| CN202718135U (en) * | 2012-08-28 | 2013-02-06 | 冯计锁 | Prestress baffle type assembly prefabricated reinforced concrete tower crane foundation |
| CN103835303A (en) * | 2012-11-20 | 2014-06-04 | 贵阳铝镁设计研究院有限公司 | Shear resisting method and structure for cast-in-place reinforced concrete |
| CN105113353A (en) * | 2015-08-11 | 2015-12-02 | 江苏万融工程科技有限公司 | Novel rapid-assembly type anti-shearing concrete pavement |
| CN205077352U (en) * | 2015-08-11 | 2016-03-09 | 江苏万融工程科技有限公司 | Novel anti -shearing concrete road surface of rapid Assembly formula |
| CN107097330A (en) * | 2017-07-03 | 2017-08-29 | 安徽宝业建工集团有限公司 | Possess the PC wallboard moulds that framework of steel reinforcement integrally enters mould function |
| CN112127546A (en) * | 2020-09-11 | 2020-12-25 | 浙江工业大学 | End plate connection type assembly type prefabricated reinforced concrete beam and design method thereof |
| CN215803205U (en) * | 2021-06-25 | 2022-02-11 | 中国十七冶集团有限公司 | A customization box that is used for steel construction column bottom shear key preformed groove |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100510254B1 (en) * | 2005-04-13 | 2005-08-26 | 주식회사 인터컨스텍 | Precasting method of spliced prestressed concrete girder segment and the segment precasted by above method |
-
2022
- 2022-08-31 CN CN202211053817.6A patent/CN115341753B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202718135U (en) * | 2012-08-28 | 2013-02-06 | 冯计锁 | Prestress baffle type assembly prefabricated reinforced concrete tower crane foundation |
| CN103835303A (en) * | 2012-11-20 | 2014-06-04 | 贵阳铝镁设计研究院有限公司 | Shear resisting method and structure for cast-in-place reinforced concrete |
| CN105113353A (en) * | 2015-08-11 | 2015-12-02 | 江苏万融工程科技有限公司 | Novel rapid-assembly type anti-shearing concrete pavement |
| CN205077352U (en) * | 2015-08-11 | 2016-03-09 | 江苏万融工程科技有限公司 | Novel anti -shearing concrete road surface of rapid Assembly formula |
| CN107097330A (en) * | 2017-07-03 | 2017-08-29 | 安徽宝业建工集团有限公司 | Possess the PC wallboard moulds that framework of steel reinforcement integrally enters mould function |
| CN112127546A (en) * | 2020-09-11 | 2020-12-25 | 浙江工业大学 | End plate connection type assembly type prefabricated reinforced concrete beam and design method thereof |
| CN215803205U (en) * | 2021-06-25 | 2022-02-11 | 中国十七冶集团有限公司 | A customization box that is used for steel construction column bottom shear key preformed groove |
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| Publication number | Publication date |
|---|---|
| CN115341753A (en) | 2022-11-15 |
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