CN112412002B - A leaping formwork support system - Google Patents
A leaping formwork support system Download PDFInfo
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- CN112412002B CN112412002B CN202011272247.0A CN202011272247A CN112412002B CN 112412002 B CN112412002 B CN 112412002B CN 202011272247 A CN202011272247 A CN 202011272247A CN 112412002 B CN112412002 B CN 112412002B
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- 238000009415 formwork Methods 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 156
- 239000010959 steel Substances 0.000 claims abstract description 156
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 101150054854 POU1F1 gene Proteins 0.000 description 12
- 238000010276 construction Methods 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- 230000002787 reinforcement Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000004566 building material Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/02—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for rooms as a whole by which walls and floors are cast simultaneously, whole storeys, or whole buildings
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
- Foundations (AREA)
Abstract
本发明涉及一种跨越式模板支撑系统，包括基坑，所述基坑底面铺设有筏板基础，基坑坡面铺设有护坡，所述护坡上端延伸至基坑顶面以构成护坡翻边，护坡翻边和筏板基础之间搭设有工字钢平台；所述工字钢平台包括铺垫工字钢、若干组支撑框以及直条钢筋，所述支撑框上端搭设在铺垫工字钢上；多组支撑框之间焊接有直条钢筋，支撑框上端还设置有若干钢筋支撑脚；相邻两组支撑框之间焊接有钢管剪刀撑；所述工字钢平台和筏板基础上均搭设有满堂支撑架。本发明通过在高低差区域、跨越基坑支护斜坡区域上方搭设平整的工字钢平台，使其可作为模板支撑系统或是高大模板支撑系统的平整基础。
The present invention relates to a straddling formwork support system, including a foundation pit, wherein the bottom surface of the foundation pit is paved with a raft foundation, the slope surface of the foundation pit is paved with a slope protection, the upper end of the slope protection extends to the top surface of the foundation pit to form a slope protection flange, and an I-beam platform is set up between the slope protection flange and the raft foundation; the I-beam platform includes a paved I-beam, a plurality of groups of support frames and straight steel bars, and the upper end of the support frame is set up on the paved I-beam; straight steel bars are welded between the plurality of groups of support frames, and a plurality of steel bar support feet are also arranged at the upper end of the support frame; steel pipe scissor braces are welded between two adjacent groups of support frames; full-height support frames are set up on the I-beam platform and the raft foundation. The present invention can be used as a formwork support system or a flat foundation of a tall formwork support system by setting up a flat I-beam platform in a height difference area and above a slope area spanning the foundation pit support.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a spanning type formwork support system.
Background
In the engineering construction process, the situation that a hall support frame is erected under various conditions is unavoidable, the foundation of a common formwork support system is required to be flat and solid, the foundation height difference required by a common formwork support frame is not more than 1000mm, the vertical rod spacing is generally about 900mm, the concrete needs to be determined through calculation, however, as the existing building types develop towards the directions of high, large, fine and sharp, a part of special parts always need to be erected with a special formwork support system, even under special conditions, a tall and big formwork support system is erected under special conditions, for example, in a stadium building, compared with a common building structure, an upward floor has a structure cantilever member to pick out the edge of a lower floor, the hall support frame is required to be erected outside a main building, the height is erected until the cantilever member of the topmost structure is erected, and the type of the frame is still a tall and big formwork support system.
Under the above circumstances, the formwork support system at a part of the positions is likely to span a large height difference and span a foundation pit support slope area to carry out erection of a high-size formwork support system, however, the slope protection slope of the foundation pit support is not high in strength, and according to relevant specifications, the foundation requirement of the full-hall support frame is flat and solid, and the slope protection slope of the foundation pit support can not be obviously used as the foundation of the vertical pole of the full-hall support frame. To this end, a spanning formwork support system is proposed.
Disclosure of Invention
The invention provides a spanning type formwork support system, which aims to solve the problems that when a foundation pit supporting slope area is spanned by a large height difference area and a foundation pit supporting slope area is spanned, the bottom of a full-hall support frame is free of a flat foundation and inconvenient to set up.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
The crossing type formwork support system comprises a foundation pit, wherein a raft foundation is laid on the bottom surface of the foundation pit, a slope protection is laid on the slope surface of the foundation pit, the upper end of the slope protection extends to the top surface of the foundation pit to form a slope protection flanging, and an I-shaped steel platform is erected between the slope protection flanging and the raft foundation;
the I-steel platform comprises a laying I-steel arranged on the slope protection turnup, a plurality of groups of supporting frames with triangular structures and straight steel bars, wherein the supporting frames are vertically arranged at intervals along the side edges of the foundation pit, and the upper ends of the supporting frames are erected on the laying I-steel;
A plurality of steel bar supporting feet are further arranged at the upper ends of the supporting frames, and steel pipe scissor struts which are arranged in an X shape are welded between two adjacent groups of supporting frames so as to strengthen the supporting frames;
The horizontal rods of the full-hall support frames on the raft foundation extend to the position of the support frame and are welded with the horizontal rods to form a first node, and the vertical rods of the full-hall support frames on the I-steel platform are inserted on the reinforcing steel bar support feet to prevent lateral movement.
Further, foundation pit slopes are distributed between the top surface of the foundation pit and the bottom surface of the foundation pit, the I-steel platform is located above the foundation pit slopes, and the I-steel platform, the top surface of the foundation pit and the bottom surface of the foundation pit are arranged in parallel.
The support frames are arranged in a triangular structure, each support frame comprises an I-shaped steel column, an I-shaped steel beam and an I-shaped steel diagonal brace, the I-shaped steel columns are vertically arranged on a raft foundation, the I-shaped steel beams are welded between the laying I-shaped steel and the I-shaped steel columns, and the I-shaped steel diagonal braces are welded between the I-shaped steel beams and the I-shaped steel columns.
Further, a square steel backing plate is welded at the bottom of the I-shaped steel column to disperse the stress of the I-shaped steel column, and the upper end of the I-shaped steel diagonal bracing is welded at the middle part of the I-shaped steel beam and the lower end of the I-shaped steel diagonal bracing is welded at the bottom of the I-shaped steel column.
Further, the straight steel bars are welded among the I-shaped steel beams of the plurality of groups of supporting frames so as to ensure that the positions of the I-shaped steel beams are not changed, the steel bar supporting feet are welded on the I-shaped steel beams, and the steel bar supporting feet are vertically distributed;
And the steel pipe scissor struts are welded between the I-shaped steel columns of the two adjacent groups of supporting frames and are used for maintaining the stability of the I-shaped steel columns.
Further, the horizontal rods of the full-hall support frame on the raft foundation extend to the positions of the I-shaped steel columns and are welded and fixed with the I-shaped steel columns to form a first node.
Further, structural columns are arranged on the raft foundation, the positions of the structural columns correspond to those of the I-shaped steel columns, and the full-hall support frames are arranged on the periphery of the structural columns in a surrounding mode;
the steel pipe is used for holding the structural column, extends to the position of the I-shaped steel column and forms a second joint with the I-shaped steel column through welding fixation.
Through the technical scheme, the invention has the beneficial effects that:
The invention has reasonable structural design, provides a supporting system for setting up a full hall frame in a crossing slope area, can solve the problem that the conventional template supporting system cannot solve in the prior art that the full hall frame is set up in a special part, and the problem that the full hall supporting system is set up in a crossing slope area with high and large templates, and can be used as a vertical pole foundation of a flat and solid template supporting system by manually setting up an I-steel platform so as to set up a full hall supporting frame on the I-steel platform.
According to the invention, the integral I-steel platform is built by using the common I-steel materials in the construction site, the original building materials in the construction site are fully utilized, other building materials are not required to be newly added, the construction is convenient and quick, the cost is saved, and the parts of the I-steel platform are strongly reinforced, so that the I-steel platform is used as a foundation of a formwork support system or even a high and large formwork support system, is convenient to be matched and built to fill a hall support frame, and is safe and reliable in practical engineering application, so that a good effect of solving a large problem with low cost is achieved.
Drawings
FIG. 1 is a schematic view of the overall structure of a cross-over form support system of the present invention.
Fig. 2 is a schematic view of a cross-over form support system of the present invention, shown in fig. 1, with a distributed view of the steel tube stumps.
FIG. 3 is a schematic diagram of a joist steel platform construction of a cross-over formwork support system of the present invention.
Fig. 4 is a schematic diagram of the connection of a column holding steel tube and an i-steel column of a spanning type formwork support system of the present invention.
FIG. 5 is a schematic view of node distribution of a cross-over formwork support system according to the present invention.
Fig. 6 is a top view of fig. 5 of a cross-over formwork support system in accordance with the present invention.
Fig. 7 is a schematic view of a full-hall support frame construction of a spanning formwork support system according to the present invention.
FIG. 8 is a schematic diagram of a node-distribution of a cross-over formwork support system in accordance with the present invention.
In the drawing, the reference numeral 1 is a foundation pit, 2 is a raft foundation, 3 is a slope protection flanging, 4 is a bedding I-shaped steel, 5 is a straight steel bar, 6 is a steel bar supporting leg, 7 is a steel pipe scissor support, 8 is a full-hall support frame, 9 is an I-shaped steel column, 10 is an I-shaped steel beam, 11 is an I-shaped steel diagonal support, 12 is a steel base plate, 13 is a node I, 14 is a structural column, 15 is a column holding steel pipe, 16 is a node II, and 17 is a slope protection.
Detailed Description
The following detailed description of specific embodiments of the invention refers to the accompanying drawings:
as shown in fig. 1-8, a spanning type formwork support system comprises a foundation pit 1, wherein a raft foundation 2 is laid on the bottom surface of the foundation pit 1, the raft foundation 2 is an internal foundation of a main building, namely one of supports of an integral i-steel platform, a slope protection 17 is laid on the slope of the foundation pit 1, and the upper end of the slope protection 17 extends to the top surface of the foundation pit 1 to form a slope protection flanging 3;
The foundation pit is characterized in that the slope of the foundation pit 1 is distributed between the top surface of the foundation pit 1 and the bottom surface of the foundation pit 1, the slope of the foundation pit 1 is the part which needs to be spanned by a full support system, an I-steel platform is erected between the slope protection flange 3 and the raft foundation 2, and the I-steel platform is positioned above the slope of the foundation pit 1, and the I-steel platform, the top surface of the foundation pit 1 and the bottom surface of the foundation pit 1 are arranged in parallel.
The I-steel platform is a foundation of a tall and big formwork support system which is erected by adopting I-steel manually, one end of the I-steel platform is supported on the raft foundation 2, the other end of the I-steel platform is supported on the slope protection flanging 3, and all support points are on a solid foundation, so that the possibility of sinking of the I-steel platform is avoided.
In this embodiment, as shown in fig. 3, the i-steel platform includes a laying i-steel 4 disposed on the slope protection flange 3, a plurality of groups of supporting frames having a triangular structure, and straight bars 5, the laying i-steel 4 is a second support of the integral i-steel platform, the length direction of the laying i-steel 4 is consistent with the arrangement direction of the plurality of groups of supporting frames, the plurality of groups of supporting frames are vertically spaced along the side edges of the foundation pit 1, and the upper ends of the supporting frames are erected on the laying i-steel 4.
Specifically, each group of supporting frames comprises an I-steel column 9, an I-steel beam 10 and an I-steel diagonal brace 11 which are connected in a triangular structure in a combined mode, the I-steel column 9 is vertically arranged on the raft foundation 2, the I-steel column 9 is supported by the I-steel beam 10, a square steel backing plate 12 is welded at the bottom of the I-steel column 9 for dispersing stress of the I-steel column 9, and the contact area between the I-steel column 9 and the raft foundation 2 can be increased by the steel backing plate 12.
The I-beam 10 is welded between the bedding I-beam 4 and the I-beam column 9, the I-beam 10 is used as a vertical rod foundation of a formwork support system, the I-beam 10 is arranged in parallel with the raft foundation 2, and the I-beam diagonal bracing 11 is welded between the I-beam 10 and the I-beam column 9, namely the upper end of the I-beam diagonal bracing 11 is welded at the middle part of the I-beam 10, and the lower end of the I-beam diagonal bracing is welded at the bottom of the I-beam column 9;
The I-steel diagonal bracing 11 is reinforced into a middle supporting point of the I-steel beam 10, one end of the I-steel diagonal bracing is fully welded with the I-steel beam 10 for reinforcement, the other end of the I-steel diagonal bracing is fully welded with the I-steel column 9 for reinforcement, a stable triangular supporting system is formed, and the middle supporting point of the I-steel beam 10 is increased, so that the span of the I-steel beam 10 is reduced, and the safety of the whole I-steel platform is ensured.
In order to ensure that the I-shaped steel beams 10 do not move, the straight steel bars 5 are welded among the I-shaped steel beams 10 of the plurality of groups of supporting frames, so that the position of the I-shaped steel beams 10 is not changed, the steel bar supporting feet 6 are welded on the I-shaped steel beams 10, and the steel bar supporting feet 6 are vertically distributed.
In order to play a role in reinforcing adjacent supporting frames, steel pipe scissor supports 7 which are arranged in an X shape are welded between the I-shaped steel columns 9 of the adjacent two groups of supporting frames, one end of each steel pipe scissor support 7 is fully welded with the upper end of one I-shaped steel column 9 for reinforcement, the other end of each steel pipe scissor support 7 is fully welded with the lower end of one adjacent I-shaped steel column 9 for reinforcement, and the steel pipe scissor supports 7 serve as reinforcing members of the I-shaped steel columns 9 and are used for maintaining stability of the I-shaped steel columns 9.
The I-steel platform and the raft foundation 2 are respectively provided with a full-hall support frame 8, the vertical rods of the full-hall support frames 8 on the I-steel platform are inserted into the steel bar support feet 6, the side shift is prevented by the action of the steel bar support feet 6, and the full-hall support frames 8 on the raft foundation 2 are the full-hall support frames 8 in the main building;
As shown in fig. 8, when the raft foundation 2 is not provided with the structural columns 14, the horizontal rods of the full-hall support frames 8 on the raft foundation 2 extend to the positions of the i-steel columns 9 and are welded and fixed with the i-steel columns to form a first node 13, so that the function of connecting and supporting is achieved;
As shown in fig. 4-6, when the raft foundation 2 is provided with the structural columns 14, when the structural columns 14 correspond to the i-steel columns 9 in position, the full-hall support frame 8 is surrounded on the periphery of the structural columns 14, at this time, the surrounding side of the structural columns 14 is provided with the surrounding column steel pipes 15, the surrounding column steel pipes 15 are used for surrounding the structural columns 14, the adjacent surrounding column steel pipes are fastened through connecting fasteners, and one surrounding column steel pipe 15 extends to the i-steel columns 9 and forms a second node 16 with the i-steel columns 9 in a welded and fixed manner, so that the function of connecting and supporting is also achieved.
The invention provides a crossing height difference, a full hall supporting system is erected in a crossing slope area, a vertical pole foundation of a formwork supporting system is converted into a flat and solid foundation from a high-low span and slope area, an integral I-steel platform is erected manually, the I-steel platform structure is stable, and the I-steel platform can be used as a flat foundation for formwork supporting systems and even for building high and large formwork supporting systems.
The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention, so that all equivalent changes or modifications of the structure, characteristics and principles described in the claims should be included in the scope of the present invention.
Claims (6)
1. The crossing type formwork support system comprises a foundation pit (1), and is characterized in that a raft foundation (2) is laid on the bottom surface of the foundation pit (1), a slope protection (17) is laid on the slope surface of the foundation pit (1), the upper end of the slope protection (17) extends to the top surface of the foundation pit (1) to form a slope protection flanging (3), and an I-steel platform is erected between the slope protection flanging (3) and the raft foundation (2);
The foundation pit is characterized in that a slope surface of the foundation pit (1) is distributed between the top surface of the foundation pit (1) and the bottom surface of the foundation pit (1), the I-steel platform is positioned above the slope surface of the foundation pit (1), the I-steel platform, the top surface of the foundation pit (1) and the bottom surface of the foundation pit (1) are arranged in parallel, the I-steel platform comprises a laying I-steel (4) arranged on a slope protection flanging (3), a plurality of groups of supporting frames with triangular structures and straight steel bars (5), the supporting frames are vertically arranged at intervals along the side edges of the foundation pit (1), the upper ends of the supporting frames are erected on the laying I-steel (4), and the length direction of the laying I-steel (4) is consistent with the arrangement direction of the supporting frames;
A plurality of steel bar supporting feet (6) are further arranged at the upper end of the supporting frame, and a steel pipe scissor brace (7) which is arranged in an X shape is welded between two adjacent groups of supporting frames so as to strengthen the supporting frames;
the horizontal rods of the full-hall support frames (8) on the raft foundation (2) extend to the positions of the support frames and are welded with the horizontal rods to form a first node (13), and the vertical rods of the full-hall support frames (8) on the I-steel platform are inserted into the reinforcing steel bar support feet (6) to prevent lateral movement.
2. The spanning formwork support system according to claim 1, wherein each group of the support frames comprises an i-beam column (9), an i-beam (10) and an i-beam diagonal brace (11) which are connected in a triangular structure combination, the i-beam column (9) is vertically arranged on the raft foundation (2), the i-beam (10) is welded between the laying i-beam (4) and the i-beam column (9), and the i-beam diagonal brace (11) is welded between the i-beam column (9) and the i-beam column (10).
3. A spanning formwork support system as claimed in claim 2, wherein a square steel backing plate (12) is welded to the bottom of the i-beam column (9) to distribute the stress of the i-beam column (9);
The upper end of the I-shaped steel diagonal brace (11) is welded at the middle part of the I-shaped steel beam (10), and the lower end of the I-shaped steel diagonal brace is welded at the bottom of the I-shaped steel column (9).
4. The spanning formwork support system according to claim 2, wherein the straight bars (5) are welded between the i-beams (10) of the plurality of groups of support frames to ensure that the positions of the i-beams (10) do not change, the i-beams (10) are welded with the bar support feet (6), and the bar support feet (6) are vertically arranged;
and the steel pipe scissor struts (7) are welded between the I-shaped steel columns (9) of two adjacent groups of supporting frames and are used for maintaining the stability of the I-shaped steel columns (9).
5. A spanning formwork support system according to claim 2, wherein the horizontal bar of the full-span support frame (8) on the raft foundation (2) extends to the position of the i-beam column (9) and is welded and fixed with the i-beam column to form a first joint (13).
6. The spanning formwork support system according to claim 5, wherein the raft foundation (2) is provided with a structural column (14), the structural column (14) corresponds to the i-steel column (9) in position, and the full-hall support frame (8) is arranged around the structural column (14);
the structure column (14) is provided with a column holding steel pipe (15) on the periphery side, and is used for holding the structure column (14), and the column holding steel pipe (15) extends to the position of the I-shaped steel column (9) and is welded and fixed with the I-shaped steel column to form a second node (16).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011272247.0A CN112412002B (en) | 2020-11-14 | 2020-11-14 | A leaping formwork support system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011272247.0A CN112412002B (en) | 2020-11-14 | 2020-11-14 | A leaping formwork support system |
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| CN112412002A CN112412002A (en) | 2021-02-26 |
| CN112412002B true CN112412002B (en) | 2025-02-14 |
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| CN202011272247.0A Active CN112412002B (en) | 2020-11-14 | 2020-11-14 | A leaping formwork support system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114319821B (en) * | 2022-02-08 | 2024-01-23 | 中建七局第四建筑有限公司 | Stair-room overhanging I-steel installation method with protection function |
| CN114575370B (en) * | 2022-04-01 | 2024-04-02 | 北京市第五建筑工程集团有限公司 | High-low span foundation structure and construction method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN214144681U (en) * | 2020-11-14 | 2021-09-07 | 宝冶(郑州)建筑工程有限公司 | Striding type template support system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6442908B1 (en) * | 2000-04-26 | 2002-09-03 | Peter A. Naccarato | Open web dissymmetric beam construction |
| CN101538896B (en) * | 2009-04-03 | 2011-05-11 | 标力建设集团有限公司 | Construction method for jettied structure at high attitude of high-rise building |
| CN205955205U (en) * | 2016-08-29 | 2017-02-15 | 成都市第四建筑工程公司 | Formwork supporting device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN214144681U (en) * | 2020-11-14 | 2021-09-07 | 宝冶(郑州)建筑工程有限公司 | Striding type template support system |
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