CN210439565U - A split heads structure for supporting raft foundation reinforcing bar - Google Patents
A split heads structure for supporting raft foundation reinforcing bar Download PDFInfo
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- CN210439565U CN210439565U CN201921035871.1U CN201921035871U CN210439565U CN 210439565 U CN210439565 U CN 210439565U CN 201921035871 U CN201921035871 U CN 201921035871U CN 210439565 U CN210439565 U CN 210439565U
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Abstract
The utility model discloses a split heads structure for supporting raft foundation steel bars, comprising a group of top main rods which are horizontally and parallelly arranged, top auxiliary rods which are vertically connected between the adjacent top main rods, a vertical rod which is vertically connected below the top main rods, a bottom rod which is connected at the bottom end of the vertical rod, and an inclined rod which is connected between the top auxiliary rods and the bottom rod; wherein, each member connecting node is detachably connected through a node sleeve; the bottom rods are respectively connected with a detachable limiting piece between the raft foundation interlayer reinforcing steel bar lower layer horizontal ribs or vertical ribs; the limiting part comprises a hoop, an arc-shaped plate connected to one end part of the hoop and parallel baffle plates connected to two ends of the arc-shaped plate. The utility model is beneficial to the encryption arrangement of local areas, the full-length arrangement of the top main rod is beneficial to the whole even stress of the raft foundation; the interlayer thickness of different raft foundation steel bars can be adapted or local adjustment can be carried out through adjustment and change of the vertical rods; through the design of locating part, guarantee wholeness and stability at the raft board in-process of pouring.
Description
Technical Field
The utility model relates to a raft foundation reinforcement engineering technical field, in particular to split heads structure for supporting raft foundation reinforcing bar.
Background
In the building construction, because the building object volume is great, self load is heavier, the foundation bearing capacity is less than the circumstances such as weak, can often adopt raft foundation. The raft foundation is formed by combining bottom plates, beams and other members, has better integrity, and can effectively resist the unevenness and settlement of the foundation. In addition, the raft foundation is formed by connecting independent foundations below the columns or strip foundations by connecting beams.
When the raft foundation is constructed, the steel bar engineering is one of key links. During the construction of the original raft foundation steel bars, a split heads can be used as supports of the interlayer steel bars, the split heads are mostly in a shape like a Chinese character 'ji' and can not bear upper load or cause uneven stress of the local interlayer steel bars; at raft foundation thickness change department, can not effectual adaptation and fixed, and with reserve main muscle or vertical muscle department can not effectual connection and spacing, consequently, need provide one kind can effectively, evenly support raft foundation reinforcing bar, and be convenient for height adjustment and with the spacing split heads structure of vertical muscle.
SUMMERY OF THE UTILITY MODEL
The utility model provides a split heads structure for supporting raft foundation reinforcing bar for solve raft foundation reinforcing bar's even atress, be convenient for install, the height under bracing and with the spacing fixed technical problem of vertical muscle.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a split heads structure for supporting raft foundation steel bars comprises a group of top main rods which are horizontally and parallelly arranged, vertical rods which are vertically connected below the top main rods, and bottom rods which are connected to the bottom ends of the vertical rods; the device also comprises a group of top auxiliary rods vertically connected between the adjacent top main rods and an inclined rod connected between the top auxiliary rods and the bottom rod, wherein the top auxiliary rods and the inclined rod are at least arranged at two ends of the top main rods in the longitudinal direction; the connecting nodes of the top main rod, the top auxiliary rod, the bottom rod, the vertical rod and the inclined rod are detachably connected through node sleeves; the bottom rods are respectively connected with a detachable limiting piece between the raft foundation interlayer reinforcing steel bar lower layer horizontal ribs or vertical ribs; the locating part contains the cuff, connects in the arc of cuff one end portion and connects in the parallel baffle at arc both ends, the end bar is connected to the cuff and cuff internal diameter adapts to the end bar external diameter.
Furthermore, the inside diameter of the node sleeve is larger than the outside diameters of the top main rod, the top auxiliary rod, the bottom rod, the vertical rod and the diagonal rod which are correspondingly connected, and an anti-skidding sleeve is arranged inside the node sleeve.
Furthermore, the top main rod is positioned below the upper layer steel bars in the raft foundation steel bar layer and the full length of the top main rod is arranged on the length direction of the raft foundation steel bars.
Furthermore, pole setting height adaptation supports raft foundation rebar layer height, and the height of different poles settings is according to the reinforcing bar difference adjustment of the place support raft foundation rebar position.
Furthermore, the diagonal rods are symmetrically arranged on two sides of the vertical rod, and the vertical rod is arranged in the upward direction of the top main rod at intervals.
Furthermore, the hoop is connected to the back of the arc-shaped plate, and the axis direction of the hoop is parallel to the arc line of the arc-shaped plate.
Furthermore, the hoop is connected to the back of the arc-shaped plate, and the axis direction of the hoop is perpendicular to the arc line of the arc-shaped plate.
Furthermore, the radian of the arc-shaped plate is adapted to the outer diameter of a lower-layer horizontal rib or a vertical rib of the reinforcing steel bar between the raft foundation layers; the distance between the parallel baffle plates is adapted to the outer diameter of the lower layer horizontal rib or the vertical rib of the reinforcing steel bar between the raft foundation layers.
Furthermore, the locating part can also be arranged between vertical ribs of the reinforcing steel bars between the vertical rod and the raft foundation layer, and between upper horizontal ribs or vertical ribs of the reinforcing steel bars between the top main rod and the raft foundation layer, or between upper horizontal ribs or vertical ribs of the reinforcing steel bars between the top auxiliary rod and the raft foundation layer.
The beneficial effects of the utility model are embodied in:
1) the utility model is convenient to install through the arrangement of the node sleeves among the top main rod, the top auxiliary rod, the bottom rod, the vertical rod and the inclined rods, and is beneficial to the encrypted arrangement of local areas during design and construction, wherein, the full-length arrangement of the top main rod is beneficial to the integral uniform stress of the raft foundation;
2) the utility model, through the arrangement of the top auxiliary rod and the diagonal brace, on one hand, ensures the integrity of the split heads structure, and on the other hand, enhances the stress performance of the split heads structure; the interlayer thickness of different raft foundation steel bars can be adapted or local adjustment can be carried out through adjustment and change of the vertical rods;
3) the utility model discloses a locating part's design, vertical muscle, upper muscle and lower floor's muscle between split heads structure of being convenient for and raft foundation layer carry on spacing fixedly to guarantee to pour wholeness and stability of in-process at the raft.
In addition, the utility model has simple components, is easy to be constructed and manufactured on site and is suitable for being installed on site, and can effectively ensure the construction quality; additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention; the primary objects and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description.
Drawings
Fig. 1 is a schematic structural view of a steel bar split heads for supporting raft foundation;
FIG. 2 is a schematic view a of a connection structure of a position limiting member;
fig. 3 is a schematic view b of the connection structure of the position limiting member.
Reference numerals: 1-top main rod, 2-top auxiliary rod, 3-vertical rod, 4-diagonal rod, 5-bottom rod, 6-node sleeve, 7-limiting piece, 71-hoop, 72-arc plate and 73-parallel baffle plate.
Detailed Description
Take raft foundation reinforcing bars as double-layer bars as an example, the raft reinforcing bars are arranged into double-layer bidirectional C25 reinforcing bars. As shown in fig. 1, a split heads structure for supporting raft foundation steel bars comprises a group of top main rods 1 arranged horizontally and in parallel, top sub-rods 2 vertically connected between adjacent top main rods 1, vertical rods 3 vertically connected below the top main rods 1, bottom rods 5 connected to the bottom ends of the vertical rods 3, and inclined rods 4 connected between the top sub-rods 2 and the bottom rods 5 at the longitudinal ends of the top main rods 1; the top auxiliary rod 2 and the inclined rod 4 can be arranged at intervals in the longitudinal range according to the stress of the top main rod 1; the connecting nodes of the top main rod 1, the top auxiliary rod 2, the bottom rod 5, the vertical rod 3 and the diagonal rod 4 are detachably connected through a node sleeve 6; the bottom rod 5 is connected with a detachable limiting part 7 between the raft foundation layer and the lower-layer horizontal rib or the vertical rib of the reinforcing steel bar.
In the embodiment, the height of the split heads = the thickness of the foundation, the upper and lower protective layers, the diameter of the upper-layer bidirectional steel bar and the diameter of the lower-layer bidirectional steel bar; the top main rods 1 are arranged at intervals, a row of top main rods is arranged at least at intervals of 0.9m, and the side of each top main rod 1 is connected with a top auxiliary rod 2; the vertical rods 3 are connected at the joints of the top main rod 1 and the intersection of the top main rod 1 and the top auxiliary rod 2, and the vertical rods 3 are required to be arranged at four corners of a raft foundation or four corners of local encrypted steel bars; the inclined rods 4 are symmetrically arranged on two sides of the vertical rod 3, and the inclined rods 4 are arranged at intervals in the length direction of the top main rod 1; wherein, the top main rod 1, the top auxiliary rod 2, the bottom rod 5, the upright rod 3 and the diagonal rod 4 are made of steel pipes or steel bars.
In this embodiment, three-port node sleeve 6 is sleeved at the joint of the top main rod 1 and the vertical rod 3, an anti-slip sleeve is arranged inside the node sleeve, five-port node sleeve 6 is sleeved at the joint of the top main rod 1, the top auxiliary rod 2 and the vertical rod 3, seven-port or eight-port connecting sleeve is sleeved between the top main pipe, the top auxiliary rod 2, the vertical rod 3 and the diagonal rod 4, and the like, the node sleeve 6 has more patterns and the same pattern, so that the node sleeve can be prefabricated in advance in batches according to the connecting node pattern between the components, and the construction and installation time is prolonged.
In the embodiment, the top main rod 1 is positioned inside a raft foundation steel bar layer, is positioned below an upper layer of steel bars and is arranged in the length direction of the raft foundation steel bars; the bottom rod 5 is positioned inside the raft foundation steel bar layer and above the lower layer steel bar, and the bottom rod 5 is vertically arranged with the top main rod 1; bottom bar 5 adopts 0.9m interval arrangement, and the pole setting 3 high adaptation that bottom bar 5 is connected supports raft foundation rebar layer height, and the difference in height adjustment of the reinforcing bar height of the raft foundation rebar position is supported according to the place to the height of different pole settings 3.
As shown in fig. 2 and 3, the stopper 7 comprises a ferrule 71, an arc plate 72 connected to one end of the ferrule 71, and parallel baffles 73 connected to both ends of the arc plate 72, wherein the inner diameter of the ferrule 71 is adapted to the outer diameter of the bottom rod 5; when locating part 7 cup joints with sill bar 5, the external diameter of the lower floor level muscle or the vertical muscle of reinforcing bar between raft foundation layer is adapted to the radian of arc 72, and the external diameter of reinforcing bar lower floor level muscle or the vertical muscle between parallel baffle 73 is adapted to the distance between raft foundation layer. Wherein the ferrule 71 is made of steel plate or steel pipe, and the arc-shaped plate 72 and the parallel baffle 73 are made of steel plate.
In addition, when the limiting member 7 is arranged between the vertical bars of the vertical rod 3 and the reinforcing steel bars between the raft foundation layers, the radian of the arc-shaped plate 72 is adapted to the outer diameter of the corresponding vertical bar at the vertical rod 3, and the distance between the parallel baffles 73 is adapted to the outer diameter of the corresponding vertical bar at the vertical rod 3;
when locating part 7 sets up between the upper level horizontal muscle or the vertical muscle of top mobile jib 1 and raft foundation layer reinforcing bar, the radian of arc 72 adapts to the external diameter of the upper level horizontal muscle or the corresponding vertical muscle of raft foundation layer reinforcing bar, and the distance between parallel baffle 73 adapts to the external diameter of upper level horizontal muscle or the corresponding vertical muscle in the raft foundation layer reinforcing bar.
When locating part 7 sets up between the upper level horizontal muscle or the vertical muscle of top assistant's pole 2 and raft foundation layer reinforcing bar, the external diameter of the upper level horizontal muscle or the corresponding vertical muscle of reinforcing bar between raft foundation layer is adapted to the radian of arc 72, and the external diameter of upper level horizontal muscle or corresponding vertical muscle in the reinforcing bar between parallel baffle 73 is adapted to raft foundation layer.
In this embodiment, the limiting member 7 has two connection forms, the ferrule 71 is connected to the back of the arc-shaped plate 72, and the axial direction of the ferrule 71 is parallel to the arc line of the arc-shaped plate 72; or the ferrule 71 is connected to the back of the arc-shaped plate 72, and the axial direction of the ferrule 71 is perpendicular to the arc line of the arc-shaped plate 72.
The above description is only for the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be considered by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention.
Claims (9)
1. A split heads structure for supporting raft foundation steel bars is characterized by comprising a group of top main rods (1) which are horizontally and parallelly arranged, vertical rods (3) which are vertically connected below the top main rods (1), and bottom rods (5) which are connected to the bottom ends of the vertical rods (3); the device also comprises a group of top auxiliary rods (2) vertically connected between the adjacent top main rods (1) and an inclined rod (4) connected between the top auxiliary rods (2) and the bottom rod (5), wherein the top auxiliary rods (2) and the inclined rod (4) are at least arranged at two ends of the top main rods (1) in the length direction; the connecting nodes of the top main rod (1), the top auxiliary rod (2), the bottom rod (5), the upright rod (3) and the diagonal rod (4) are detachably connected through a node sleeve (6); the bottom rods (5) are respectively connected with the lower-layer horizontal ribs or the vertical ribs of the reinforcing steel bars between the raft foundation layers through detachable limiting pieces (7); the limiting piece (7) comprises a hoop (71), an arc-shaped plate (72) connected to one end of the hoop (71) and parallel baffle plates (73) connected to two ends of the arc-shaped plate (72), the hoop (71) is connected with the bottom rod (5), and the inner diameter of the hoop (71) is adaptive to the outer diameter of the bottom rod (5).
2. The split heads structure for supporting raft foundation steel bars according to claim 1, wherein the inside diameter of the node sleeves (6) is larger than the outside diameters of the top main rod (1), the top auxiliary rod (2), the bottom rod (5), the vertical rods (3) and the inclined rods (4) which are correspondingly connected, and anti-skid sleeves are arranged inside the node sleeves (6).
3. A split heads structure for supporting raft foundation tendons as claimed in claim 1, wherein the top main rods (1) are located below the upper tendons in the raft foundation tendons and the full length is set up above the length of the raft foundation tendons.
4. The split heads structure for supporting raft foundation rebars according to claim 1, wherein the height of the vertical rods (3) is adapted to the height of the supporting raft foundation rebars, and the heights of different vertical rods (3) are adjusted according to the difference of the heights of the rebars at the positions of the supporting raft foundation rebars.
5. The split heads structure for supporting raft foundation rebars according to claim 1, wherein the inclined rods (4) are symmetrically arranged on both sides of the vertical rod (3), and the vertical rods (3) are arranged at intervals in the length direction of the top main rod (1).
6. The split heads structure for supporting raft foundation reinforcement of claim 1, wherein the hoop (71) is connected to the back of the curved plate (72), and the axial direction of the hoop (71) is parallel to the arc of the curved plate (72).
7. The split heads structure for supporting raft foundation reinforcement of claim 1, wherein the hoop (71) is connected to the back of the curved plate (72), and the axial direction of the hoop (71) is perpendicular to the arc of the curved plate (72).
8. A split heads structure for supporting raft foundation tendons as claimed in claim 1, characterised in that the radian of the arcs (72) is adapted to the outer diameter of the lower horizontal or vertical tendons of raft foundation inter-storey tendons; the distance between the parallel baffles (73) is adapted to the outer diameter of the lower layer horizontal rib or the vertical rib of the reinforcing steel bar between the raft foundation layers.
9. The split heads structure for supporting raft foundation rebars of claim 1, wherein the position-limiting member (7) is further disposed between the vertical rod (3) and the vertical ribs of the raft foundation inter-layer rebars, between the top main rod (1) and the upper horizontal ribs or the vertical ribs of the raft foundation inter-layer rebars, or between the top auxiliary rod (2) and the upper horizontal ribs or the vertical ribs of the raft foundation inter-layer rebars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921035871.1U CN210439565U (en) | 2019-07-04 | 2019-07-04 | A split heads structure for supporting raft foundation reinforcing bar |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921035871.1U CN210439565U (en) | 2019-07-04 | 2019-07-04 | A split heads structure for supporting raft foundation reinforcing bar |
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| CN210439565U true CN210439565U (en) | 2020-05-01 |
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| CN201921035871.1U Active CN210439565U (en) | 2019-07-04 | 2019-07-04 | A split heads structure for supporting raft foundation reinforcing bar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434353A (en) * | 2022-09-30 | 2022-12-06 | 上海核工程研究设计院有限公司 | Design and construction method of fabricated nuclear island raft foundation reinforcement truss structure |
-
2019
- 2019-07-04 CN CN201921035871.1U patent/CN210439565U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434353A (en) * | 2022-09-30 | 2022-12-06 | 上海核工程研究设计院有限公司 | Design and construction method of fabricated nuclear island raft foundation reinforcement truss structure |
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