CN212248255U - Plate-type connecting structure for double-row supporting of front wall rear piles - Google Patents
Plate-type connecting structure for double-row supporting of front wall rear piles Download PDFInfo
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- CN212248255U CN212248255U CN201922055100.5U CN201922055100U CN212248255U CN 212248255 U CN212248255 U CN 212248255U CN 201922055100 U CN201922055100 U CN 201922055100U CN 212248255 U CN212248255 U CN 212248255U
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Abstract
The application relates to a plate type connecting structure for double-row supporting of front wall and rear piles, which comprises a front row wall, rear piles and a connecting plate arranged between the front row wall and the rear piles, wherein the top of the front row wall is provided with front row wall crown beams, and the top of the rear piles is provided with rear row pile crown beams; the inner side vertical ribs of the front row wall are bent along the top of the connecting plate, the outer side of the rear row pile crown beam and the bottom of the connecting plate to form inner side P-shaped ribs of the wall; the outer vertical ribs of the front row wall are bent downwards around the rib sections, positioned at the tops of the connecting plates, of the inner P-shaped ribs of the wall; a small stirrup is arranged in the range of the top beam of the rear row pile between the pile top of the rear row pile and the connecting plate; and large stirrups are arranged in the range of the top beams of the rear rows of piles between the adjacent rear rows of piles, and all vertical longitudinal reinforcements of the rear rows of piles are bent at the tops by a certain length to form L-shaped reinforcements of the piles. The utility model discloses can guarantee to connect the rigidity of the connecting plate of front stall wall and back campshed, bear moment of flexure and shear force, can simplify the arrangement of reinforcement mode of connecting plate again greatly, show and improve the efficiency of construction.
Description
Technical Field
The utility model relates to a double plate-type connection structure who struts of stake behind front wall.
Background
At present, urban foundation pit engineering in China often has the following typical characteristics: the basement outer wall is adjacent to a building planning red line; rich storage of high groundwater in field range; and the construction planning does not use supporting structures such as anchor rods outside the red line. Although the traditional cantilever pile supporting or inner support supporting technology can be used for construction within the construction planning red line range and is not influenced by peripheral underground facilities, the depth of a cantilever pile supporting foundation pit is generally not more than 6 meters. The inner support supporting technology needs to construct a large number of reinforced concrete beams or steel structure supporting members in the plane range of foundation pit excavation, so that earthwork excavation, underground foundation and building construction are influenced, and for large foundation pits, the installation and the removal of a large number of supporting members prolong the construction period and increase the manufacturing cost. In order to reduce the influence of the underground water level on the peripheral existing buildings and underground pipe network facilities, the traditional foundation pit supporting technology needs to construct a continuous water interception curtain wall at the periphery of the foundation pit to prevent the groundwater outside the foundation pit from flowing into the foundation pit, and the construction of the water interception curtain wall greatly prolongs the construction period of the project and increases the construction cost of the project.
In order to solve the problem of the traditional foundation pit supporting technology, the supporting technology of the underground continuous wall combined with the inner support is applied to the building engineering. The method has the following advantages: (1) the supporting structures are controlled within the red line range of the building; (2) the underground continuous wall can effectively prevent groundwater outside the foundation pit from flowing into the foundation pit, and effectively control the influence of the groundwater on the surrounding environment of the foundation pit; (3) the inner support can control the deformation of the underground continuous wall.
But the supporting technology of the underground continuous wall combined with the inner support also has the following problems: (1) when the large foundation pit adopts the inner support structure, the rigidity of the middle part of the side wall of the foundation pit is low, and the deformation is overlarge. In order to enhance the rigidity, the side trusses are often adopted, so that the reinforced concrete beam is obviously increased, the construction progress is influenced, the manufacturing cost is increased, and the dismantling is extremely complicated; (2) when the depth of the foundation pit is not large, the inner support easily causes the problems of earth excavation, pouring and dismantling of the supporting beam and the like, if the inner support is cancelled, the rigidity of the wall body is often greatly increased for controlling the deformation of the underground continuous wall, so that the width or the arrangement of the reinforcement of the underground continuous wall is obviously increased, and the construction cost is greatly increased.
The double-row support structure of the front wall and the rear pile is a novel double-row support structure which can replace the combined support of an underground continuous wall and an inner support. The double-row support for the front wall and the rear pile consists of a front row wall and a front row wall crown beam formed by underground continuous walls, a rear row pile and a rear row pile crown beam formed by reinforced concrete cast-in-place piles arranged at certain pile intervals, and a member for connecting the front row wall and the rear row pile. The front row wall and the rear row pile can fully exert the effect of jointly resisting horizontal load and controlling deformation by the front row wall and the rear row pile only by forming a portal rigid frame structure. Therefore, the connection of the front row wall and the rear row pile is extremely important for the supporting effect of the double-row supporting structure of the front wall and the rear pile.
Accordingly, the present inventors have made extensive studies to solve the above problems and have made the present invention.
SUMMERY OF THE UTILITY MODEL
When the excavation supporting adopts front-seat underground continuous wall and back row concrete to fill and jointly strut, can form good rigid frame structure system for guaranteeing front-seat wall and back row stake, the utility model provides a board-like connection structure that stake double was strutted behind front wall. By adopting the connecting structure, the rigidity of the connecting plate for connecting the front row wall and the rear row pile can be ensured, the bending moment and the shearing force are borne, the reinforcement mode of the connecting plate can be greatly simplified, and the construction efficiency is obviously improved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a plate type connecting structure for double-row supporting of front-wall rear piles comprises a front-row wall, rear-row piles and a connecting plate arranged between the front-row wall and the rear-row piles, wherein the connecting plate extends along the arrangement direction of all the rear-row piles, a front-row wall crown beam is arranged at the top of the front-row wall, and a rear-row pile crown beam is arranged at the top of each rear-row pile; the inner side vertical ribs of the front row wall are bent along the top of the connecting plate, the outer side of the rear row pile crown beam and the bottom of the connecting plate to form inner side P-shaped ribs of the wall; the outer vertical ribs of the front row wall are bent downwards around the rib sections, positioned at the tops of the connecting plates, of the inner P-shaped ribs of the wall; inside the P-shaped ribs on the inner side of the wall, a connecting plate is longitudinally provided with a first longitudinal rib and a second longitudinal rib along the front row wall within the range of a front row wall crown beam, the connecting plate is longitudinally provided with an in-plate erection rib within the range between the front row wall crown beam and a rear row pile crown beam, and the connecting plate is longitudinally provided with a third longitudinal rib and a fourth longitudinal rib along the rear row pile crown beam within the range of the rear row pile crown beam; a small stirrup is arranged in the range of the rear row pile crown beam between the bottom of the rear row pile crown beam and the connecting plate; in the rear row pile crown beam range between adjacent rear row piles, a large stirrup is arranged, all vertical longitudinal ribs of the rear row piles are bent at the top by a certain length to form pile L-shaped ribs, and rear row pile crown beams corresponding to small stirrups and large stirrups are also provided with rear crown beam longitudinal ribs extending along the longitudinal direction.
As an optimal mode of the utility model, inboard P type muscle of wall includes integrative first muscle section, second muscle section, third muscle section and the fourth muscle section of buckling and forming, and first muscle section is followed the bottom of front stall wall extends to the top of front stall wall crown roof beam, and second muscle section is followed the inboard at front stall wall crown roof beam top extends to the outside at back row pile crown roof beam top, and third muscle section is followed the top in the back row pile crown roof beam outside extends to the bottom of back row pile crown roof beam, and the fourth muscle section is followed the outside of back row pile crown roof beam bottom extends to the inboard of front stall wall crown roof beam is buckled.
As a preferred mode of the utility model, stake L type muscle is the multiunit, and every group includes the stake L type muscle of two relative settings.
As the utility model discloses an optimal mode, every group stake L type muscle is in back row pile crown roof beam top is walked around behind the inboard P type muscle of wall, buckle 90 back in opposite directions and draw together the overlap joint in opposite directions, overlap joint length is not less than 10 times of stake L type muscle diameter.
The utility model also provides a construction method of the plate type connecting structure with the double-row structure of the front wall and the rear pile, which comprises the following steps,
A. pile L-shaped ribs of the rear row of piles are reserved as full-length longitudinal ribs, after construction of the rear row of piles is completed, earthwork between a front row wall crown beam and a rear row pile crown beam is excavated to the elevation of the bottom of a connecting plate, earthwork in the range of the rear row pile crown beam is excavated to the elevation of the bottom of the rear row pile crown beam, and concrete of the rear row piles in the range of the rear row pile crown beam is chiseled;
B. manufacturing a P-shaped rib on the inner side of the front row wall by using the vertical rib of the front row wall according to design requirements, and bending the top end of the vertical longitudinal rib on the outer side of the wall to enable the hook to pull the P-shaped rib on the inner side of the wall, thereby finishing the manufacturing of the steel bar of the front row wall;
C. carry out the groove section excavation construction to front stall wall design position, then put into the reinforcing bar of front stall wall to design elevation, pack into first muscle of indulging in wall inboard P type muscle, muscle and the built-in muscle of putting up of second longitudinal tie and inboard, little stirrup and big stirrup are put to the design position of back stall stake crown beam, then penetrate back stall roof beam in the back stall stake crown beam and indulge the muscle, the muscle is indulged to the third and the muscle is indulged to the fourth and the ligature is firm, it is firm to bend stake L type muscle and overlap joint ligature according to the design requirement again, pour the front stall wall, front stall wall crown beam, the concrete of connecting plate and back stall stake crown beam, form board-type connection structure.
After adopting above-mentioned structure, two big difficult problems have been solved:
(1) the problem of front row underground continuous wall and back row irrigation stake rigid connection is solved, the interior P type muscle of wall of front row wall is as connecting plate upper and lower stress muscle concurrently, constitutes a whole, has guaranteed the rigidity of the connecting plate of connecting front row wall and back row stake for the connecting plate can bear great moment of flexure and shear force.
(2) The complicated reinforcement construction difficult problem of front row wall and back row pile has been solved: because the front row wall adopts the inboard P type muscle of wall to directly be connected front row wall and back row stake, the inboard P type muscle of wall is regarded as connecting plate top atress muscle and bottom atress muscle concurrently, need not to dispose the connecting plate atress muscle alone again, has simplified the arrangement of reinforcement mode of connecting plate greatly. The L-shaped ribs of the piles can effectively restrain the P-shaped ribs on the inner side of the wall, so that the configuration of the using amount of stirrups can be omitted, and the steel bars are saved. The L-shaped ribs of the piles can be directly bent by adopting a handheld steel bar bending machine on the piles in the back row respectively, and the construction is convenient. Therefore, the structure remarkably improves the construction efficiency.
Drawings
Fig. 1 is a schematic plane structure diagram of a plate-type connecting structure for double-row supporting of front wall and rear pile of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;
fig. 3 is a cross-sectional view of the cross-section B-B of fig. 1 according to the present invention.
In the figure:
First longitudinal rib 15 and second longitudinal rib 16
Front crown beam longitudinal rib 17 and front row wall horizontal longitudinal rib 18
Connecting plate 2 inner frame vertical rib 21
Pile L-shaped rib 33 third longitudinal rib 34
Fourth longitudinal rib 35 small stirrup 36
Detailed Description
In order to further explain the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings. The inner side of the middle front row wall 11 of the utility model refers to the side of the front row wall 11 far away from the rear row piles 31, and the outer side of the front row wall 11 refers to the side of the front row wall 11 near the rear row piles 31; the inner side of the rear row pile 31 refers to the side of the rear row pile 31 close to the front row wall 11, and the outer side of the rear row pile 31 refers to the side of the rear row pile 31 far away from the front row wall 11, and the position 4 represents the ground in the figure.
Referring to fig. 1-3, the connecting plate for double-row supporting of the front wall and the rear pile comprises a connecting plate 2, a front row wall 11 and a rear row pile 31, wherein a front row wall crown beam 12 is arranged at the top of the front row wall 11, and a rear row pile crown beam 32 is arranged at the top of the rear row pile 31; and two ends of the connecting plate 2 are respectively connected with the front row wall crown beam 12 and the rear row pile crown beam 32. The connecting plate 2, the front row wall 11, the rear row piles 31, the front row wall crown beams 12 and the rear row pile crown beams 32 include concrete and steel bars (steel bar frames or steel bar nets) arranged in the concrete, for example, the front row wall 11 is provided with the front row wall horizontal longitudinal bars 18, the front row wall crown beams 12 are provided with the front row beam longitudinal bars 19, and the connecting plate 2 spans all the rear row piles 31, which are conventional means in the building field and are not the focus of the present application, and the present application does not show details, and the present application focuses on the connecting structure between the supporting structures.
In the utility model, the inner vertical rib of the front row wall 11 forms the inner P-shaped rib 13 of the wall along the top of the connecting plate 2, the outer side of the rear row pile crown beam 32 and the bottom of the connecting plate 2; the outer vertical ribs of the front row wall 11 are bent downwards around the rib sections of the inner P-shaped ribs 13 of the wall, which are positioned at the top of the connecting plate 2, and are hooked on the inner P-shaped ribs 13 of the wall; inside the P-shaped ribs 13 on the inner side of the wall, the connecting plate 2 is provided with first longitudinal ribs 15 and second longitudinal ribs 16 in the range of the front row wall crown beam 12 along the longitudinal direction (arrow direction in fig. 1) of the front row wall 11, the first longitudinal ribs 15 and the second longitudinal ribs 16 are arranged up and down, the connecting plate 2 is provided with in-plate frame vertical ribs 21 in the range between the front row wall crown beam 12 and the rear row pile crown beam 32 along the longitudinal direction, in the embodiment, 3 in-plate frame vertical ribs 21 are arranged in the connecting plate 2 up and down, the connecting plate 2 is provided with third longitudinal ribs 34 and fourth longitudinal ribs 35 in the range of the rear row pile crown beam 32 along the longitudinal direction of the rear row pile crown beam 32, and the third longitudinal ribs 34 and the fourth longitudinal ribs 35 are arranged up and down; a small stirrup 36 is arranged in the range of the rear row pile crown beam 32 between the bottom of the rear row pile crown beam 32 and the connecting plate 2; and large stirrups 37 are arranged in the range of the rear row pile crown beams 32 between the adjacent rear row piles 31, and all vertical longitudinal reinforcements of the rear row piles 31 are bent at the tops by a certain length to form pile L-shaped reinforcements 33. In the present application, a rear row pile crown beam longitudinal rib 38 extending in the longitudinal direction is further provided in the rear row pile crown beam 32 corresponding to the small stirrup 36 and the large stirrup 38.
The inner side vertical rib of the front row wall 11 is bent along the top of the connecting plate 2, the outer side of the rear row pile crown beam 32 and the bottom of the connecting plate 2 to form a wall inner side P-shaped rib 13; specifically, the inboard P type muscle of wall includes first muscle section 131, second muscle section 132, third muscle section 133 and the fourth muscle section 134 that integrative bending type formed, and first muscle section 131 is followed the bottom of front stall wall 11 extends to the top of front stall wall crown roof beam 12, and second muscle section 132 is followed the inboard at front stall wall crown roof beam 12 top extends to the outside at back row pile crown roof beam 32 top, and third muscle section 133 is followed the top in the back row pile crown roof beam 32 outside extends to the bottom of back row pile crown roof beam 32, and fourth muscle section 134 is followed the outside of back row pile crown roof beam 32 bottom extends to the inboard and the buckling of front stall wall crown roof beam 12 bottom.
The utility model discloses in, stake L type muscle is the multiunit, and every group includes the stake L type muscle of two relative settings, every group stake L type muscle is in back row pile crown roof beam 32 top is walked around behind the inboard P type muscle 13 of wall, buckle 90 back in opposite directions and draw together the overlap joint in opposite directions, overlap joint length is not less than 10 times of stake L type muscle diameter.
In order to solve the problems that in a front wall and rear pile double-row supporting structure, a front-row underground continuous wall and a rear-row grouting pile are rigidly connected and the reinforcement mode of a connecting plate is simplified, so that the construction efficiency is obviously improved, the following measures are taken:
first, the inner vertical ribs of the front row wall 11 are bent along the top of the connecting plate 2, the outer side of the rear row pile crown beam 32 and the bottom of the connecting plate 2 to form the inner P-shaped ribs 13 of the wall. The inner side P-shaped ribs 13 of the wall are adopted to directly penetrate through the front row wall crown beam 12, the connecting plate 2 and the rear row pile crown beam 32, so that the bearing capacity of the connecting plate 2 for connecting the front row wall 11 and the rear row pile 31 is ensured, complicated independent rib arrangement on the connecting plate 2 can be replaced, and the construction efficiency is improved.
Second, back row pile 31 sets up a L type muscle for the multiunit, and every group includes two relative stake L type muscle that set up, every group stake L type muscle is in back row pile crown beam 32 top is walked around behind the inboard P type muscle of wall, buckle 90 back in opposite directions and draw together the overlap joint in opposite directions, and overlap joint length is not less than 10 times of stake L type muscle diameter, the inboard P type muscle 13 at stake L type muscle 33 ability effective restraint top saves the configuration of part stirrup, simplifies the arrangement of reinforcement mode greatly, improves the efficiency of construction.
The specific construction method comprises the following steps:
(1) pile L-shaped ribs 33 of the rear row of piles 31 are reserved as full-length longitudinal ribs, after the construction of the rear row of piles 31 is finished, earthwork between the front row of wall crown beams 12 and the rear row of pile crown beams 32 is excavated to the bottom elevation of the connecting plate 2 within a specified time, earthwork within the range of the rear row of pile crown beams 32 is excavated to the bottom elevation of the rear row of pile crown beams 32, and concrete of the rear row of piles 31 within the range of the rear row of pile crown beams 32 is chiseled.
(2) And manufacturing P-shaped ribs 13 on the inner side of the front row wall 11 by using the vertical ribs according to the design requirements, and bending the top ends of the vertical longitudinal ribs 14 on the outer side of the wall to enable the hooks to pull the P-shaped ribs 13 on the inner side of the wall, thereby completing the manufacturing of the reinforcing steel bars of the front row wall 11.
(3) The construction method comprises the steps of carrying out groove section excavation construction on the design position of a front row wall 11, then putting steel bars of the front row wall 11 to the design elevation, putting first longitudinal bars 15, second longitudinal bars 16 and in-plate frame vertical bars 21 into P-shaped bars 13 on the inner side of the wall, putting small stirrups 36 and large stirrups 37 at the design position of a rear row pile crown beam 32, then penetrating third longitudinal bars 34 and fourth longitudinal bars 35 into the rear row pile crown beam 32 and binding firmly, bending pile L-shaped bars 33 according to design requirements and binding firmly in an overlapping mode, pouring concrete of the front row wall 11, the front row wall crown beam 12, a connecting plate 2 and the rear row pile crown beam 32, and forming a plate type connecting structure.
After adopting above-mentioned structure: (1) the P-shaped ribs 13 on the inner side of the front row wall 11 penetrate through the front row wall crown beams 12, the top and the bottom of the connecting plate 2 and the rear row pile crown beams 32 to form continuous stress ribs, so that the rigidity and the bearing capacity of the connecting plate 2 are ensured. (2) The P-shaped ribs on the inner side of the wall are used as the top stress ribs and the bottom stress ribs of the connecting plate 2 at the same time, and the stress ribs of the connecting plate 2 do not need to be configured independently; the L-shaped ribs 33 of the piles can effectively restrain the P-shaped ribs on the inner side of the wall, so that the configuration of partial stirrups can be omitted, and the reinforcement arrangement mode of the connecting plate 2 is greatly simplified. And the L-shaped ribs of the piles can be directly bent on the piles 31 in the back row by adopting a handheld steel bar bending machine, so that the construction is convenient. Therefore, the structure remarkably improves the construction efficiency.
The product form of the present invention is not limited to the drawings and embodiments of the present application, and any person can properly change or modify the product form of the present invention without departing from the scope of the present invention.
Claims (3)
1. The utility model provides a plate-type connection structure that stake double was strutted behind preceding wall which characterized in that: the pile foundation structure comprises a front row wall, a plurality of rear row piles and a connecting plate arranged between the front row wall and the rear row piles, wherein the connecting plate extends along the arrangement direction of all the rear row piles, the top of the front row wall is provided with a front row wall crown beam, and the top of each rear row pile is provided with a rear row pile crown beam; the inner side vertical ribs of the front row wall are bent along the top of the connecting plate, the outer side of the rear row pile crown beam and the bottom of the connecting plate to form inner side P-shaped ribs of the wall; the outer vertical ribs of the front row wall are bent downwards around the rib sections, positioned at the tops of the connecting plates, of the inner P-shaped ribs of the wall; inside the P-shaped ribs on the inner side of the wall, a connecting plate is arranged in the range of a front row wall crown beam, first longitudinal ribs and second longitudinal ribs are longitudinally arranged along the front row wall, the first longitudinal ribs and the second longitudinal ribs are vertically arranged, an in-plate erection ribs are longitudinally arranged at the position of the connecting plate between the front row wall crown beam and a rear row pile crown beam, and third longitudinal ribs and fourth longitudinal ribs are longitudinally arranged in the range of the rear row pile crown beam along the rear row pile crown beam; a small stirrup is arranged in the range of the rear row pile crown beam between the bottom of the rear row pile crown beam and the connecting plate; in the rear row pile crown beam range between adjacent rear row piles, a large stirrup is arranged, all vertical longitudinal ribs of the rear row piles are bent at the top by a certain length to form pile L-shaped ribs, and rear row pile crown beams corresponding to small stirrups and large stirrups are also provided with rear crown beam longitudinal ribs extending along the longitudinal direction.
2. The plate type connecting structure of a double-row support of front wall and rear pile as claimed in claim 1, characterized in that: the inboard P type muscle of wall includes integrative first muscle section, second muscle section, third muscle section and the fourth muscle section of buckling and forming, and first muscle section is followed the bottom of front stall wall extends to the top of front stall wall crown roof beam, and the second muscle section is followed the inboard at front stall wall crown roof beam top extends to the outside at back row pile crown roof beam top, and the third muscle section is followed the top in back row pile crown roof beam outside extends to the bottom of back row pile crown roof beam, and the fourth muscle section is followed the outside of back row pile crown roof beam bottom extends to the inboard of front stall wall crown roof beam.
3. The plate type connecting structure of a double-row support of front wall and rear pile as claimed in claim 2, characterized in that: the L-shaped ribs of the piles are multiple groups, and each group comprises two oppositely-arranged L-shaped ribs of the piles.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922055100.5U CN212248255U (en) | 2019-11-25 | 2019-11-25 | Plate-type connecting structure for double-row supporting of front wall rear piles |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922055100.5U CN212248255U (en) | 2019-11-25 | 2019-11-25 | Plate-type connecting structure for double-row supporting of front wall rear piles |
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| CN212248255U true CN212248255U (en) | 2020-12-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847191A (en) * | 2019-11-25 | 2020-02-28 | 华侨大学 | Plate type connecting structure for double-row supporting of front wall and rear pile and construction method of plate type connecting structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847191A (en) * | 2019-11-25 | 2020-02-28 | 华侨大学 | Plate type connecting structure for double-row supporting of front wall and rear pile and construction method of plate type connecting structure |
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