CN113789714A - Concrete trestle and foundation pit connecting structure - Google Patents
Concrete trestle and foundation pit connecting structure Download PDFInfo
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- CN113789714A CN113789714A CN202111094642.9A CN202111094642A CN113789714A CN 113789714 A CN113789714 A CN 113789714A CN 202111094642 A CN202111094642 A CN 202111094642A CN 113789714 A CN113789714 A CN 113789714A
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 253
- 239000010959 steel Substances 0.000 claims abstract description 253
- 230000006978 adaptation Effects 0.000 claims description 3
- 230000008901 benefit Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 241000221535 Pucciniales Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
- E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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Abstract
The invention discloses a concrete trestle and foundation pit connecting structure, which comprises: the first vertical supporting steel frame comprises a plurality of first square steel pipe piles to form a first steel pipe network and a second steel pipe network, wherein the first square steel pipe piles in the first steel pipe network are arranged from high to low to form a first inclination angle, and the first square steel pipe piles in the second steel pipe network are arranged from low to high to form a second inclination angle; a first transverse supporting steel frame and a second transverse supporting steel frame are respectively arranged above a plurality of first square steel pipe piles in each transverse row of the first steel pipe network and the second steel pipe network, the top surfaces of the first transverse supporting frame and the second transverse supporting frame are obliquely arranged to form a first inclination angle and a second inclination angle respectively, and a first strip-shaped groove and a second strip-shaped groove are respectively arranged on the top surfaces of the first transverse supporting steel frame and the second transverse supporting steel frame; a first elongated bulge and a second elongated bulge are respectively arranged below the first longitudinal support steel frame and the second longitudinal support steel frame. The connecting structure is convenient to mount and dismount, good in stability, high in supporting strength and capable of being used repeatedly.
Description
Technical Field
The invention relates to the field of building construction. More particularly, the invention relates to a concrete trestle and foundation pit connecting structure.
Background
The foundation pit is a soil pit excavated at the design position of the foundation according to the elevation of the foundation and the plane size of the foundation. However, as the excavation area of the foundation pit is larger and deeper, the difficulty of excavation construction is also larger and larger. In the construction process of the oversized foundation pit, a supporting form of an inner support is usually adopted, but the supporting members are mostly concrete structures. In order to meet the construction requirements of earth excavation, a trestle needs to be constructed for the walking of working vehicles or the placement of equipment. The traditional trestle is generally an ordinary concrete trestle, the structure is also relatively complex, the traditional trestle is not convenient to mount and is not easy to dismount after foundation pit excavation is finished, and the stability of some trestles is also poor.
Disclosure of Invention
An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages described hereinafter.
The invention also aims to provide a concrete trestle and foundation pit connecting structure which is convenient to install, good in stability, high in supporting strength, convenient to disassemble and capable of being used repeatedly.
To achieve these objects and other advantages and in accordance with the purpose of the invention, a concrete trestle and foundation pit connection structure is provided, comprising:
the first vertical supporting steel frame comprises a plurality of first square steel pipe piles, the first square steel pipe piles form a first steel pipe network which is arranged vertically and horizontally and is close to the edge of a foundation pit and a second steel pipe network which is close to the center of the foundation pit, the heights of the first square steel pipe piles in each vertical row in the first steel pipe network are arranged from high to low to form a first inclination angle, the heights of the first square steel pipe piles in each vertical row in the second steel pipe network are arranged from low to high to form a second inclination angle, and the heights of the first square steel pipe piles in each horizontal row are the same;
the steel pipe network comprises a first transverse supporting steel frame and a second transverse supporting steel frame, wherein the first transverse supporting steel frame is arranged above a plurality of first square steel pipe piles of each transverse row of the first steel pipe network, the second transverse supporting steel frame is arranged above a plurality of first square steel pipe piles of each transverse row of the second steel pipe network, the top surfaces of the first transverse supporting steel frames are obliquely arranged to form a first inclination angle, the top surfaces of the second transverse supporting steel frames are obliquely arranged to form a second inclination angle, and a first elongated groove and a second elongated groove are respectively arranged on the top surfaces of the first transverse supporting steel frame and the second transverse supporting steel frame;
a first longitudinal supporting steel frame and a second longitudinal supporting steel frame, wherein the first longitudinal supporting steel frame is arranged above the plurality of first transverse supporting steel frames and is arranged at a first inclination angle, the second longitudinal supporting steel frames are arranged above the plurality of second transverse supporting steel frames at a second inclination angle, a plurality of first elongated bulges are arranged below the first longitudinal support steel frame at equal intervals, a plurality of second elongated bulges are arranged below the second longitudinal support steel frame, the first strip-shaped bulge and the second strip-shaped bulge are vertically and downwards arranged in the direction to ensure that the first strip-shaped bulge is positioned in the first strip-shaped groove, the second elongated protrusion is positioned in the second elongated groove, so that the first longitudinal support steel frame and the second longitudinal support steel frame are fixed conveniently, and transverse bridge decks are arranged on the first longitudinal supporting steel frame and the second longitudinal supporting steel frame.
Preferably, the concrete trestle and foundation pit connection structure further comprises:
two side edges of the upper end of the second vertical supporting steel frame are respectively provided with a first inclined groove matched with the port of the cross section of the first longitudinal supporting steel frame and a second inclined groove matched with the port of the cross section of the second longitudinal supporting steel frame, so that the end head of the first longitudinal supporting steel frame is positioned in the first inclined groove, and the end head of the second longitudinal supporting steel frame is positioned in the second inclined groove;
and the arc-shaped connecting block is arranged above the second vertical supporting steel frame and is used for connecting the transverse bridge deck positioned above the first vertical supporting steel frame and the transverse bridge deck positioned above the second vertical supporting steel frame.
Preferably, in the concrete trestle and foundation pit connecting structure, a square groove is formed in each of four surfaces of the plurality of first square steel pipe piles at the same height;
further comprising: the inclined support steel frame comprises a first part, a second part and a third part, wherein the first part is arranged at the upper end of the inclined support steel frame and matched with the square groove, the second part is connected with the first part in an inclined mode, the third part is arranged at the bottom end of the inclined support steel frame and connected with the second part, and the first parts of the four inclined support steel frames are respectively located in the four square grooves of the first steel pipe pile to support the first steel pipe pile.
Preferably, in the concrete trestle and foundation pit connection structure, a first groove or a first protrusion is arranged on the outward side surface of the third part of each inclined support steel frame, one of the third parts of two adjacent inclined support steel frames is provided with the first groove, and the other one is provided with the first protrusion, so that the first protrusion is just positioned in the first groove, and the stability of the first steel pipe network and the second steel pipe network is further strengthened.
Preferably, concrete trestle and foundation ditch connection structure, first horizontal support steelframe with the concrete setting mode of second horizontal support steelframe does: every be provided with the cross recess on the top of first square steel tubular pile first horizontal support steelframe with the equidistant cross arch that is provided with a plurality of and cross recess looks adaptation in the bottom surface of second horizontal support steelframe makes the cross arch is located in the cross recess.
Preferably, concrete trestle and foundation ditch connection structure in the first rectangular shape recess of first horizontal support steelframe with the impartial interval is provided with a plurality of circular recess in the second rectangular shape recess of second horizontal support steelframe first longitudinal support steelframe first rectangular shape bellied below with the second longitudinal support steelframe second rectangular shape bellied below all is provided with the circular arch with circular recess looks adaptation, be convenient for with first longitudinal support steelframe with the second longitudinal support steelframe location.
Preferably, in the concrete trestle and foundation pit connecting structure, the width of the transverse bridge deck on the first longitudinal support steel frame is alternatively arranged from narrow to wide, and the buffer strip is arranged on the narrow transverse bridge deck.
Preferably, the concrete trestle and the foundation pit are connected, and the first inclination angle is larger than the second inclination angle.
Preferably, in the connection structure of the concrete trestle and the foundation pit, the first inclination angle ranges from 20 degrees to 40 degrees, and the second inclination angle is smaller than 8 degrees.
The invention at least comprises the following beneficial effects:
first, two inclination angles, a first inclination angle and a second inclination angle are arranged in the invention. The first longitudinal support steel frame is inclined at a first inclination angle, so that the transverse bridge deck arranged on the first longitudinal support steel frame is inclined at the first inclination angle, and the operation vehicle can conveniently run to the deep part and the middle part of the foundation pit. Thereby the second vertical support steelframe is the second inclination and makes the horizontal decking that sets up above be the second inclination slope, the benefit of so setting is, if meet surrounding environment and climate change, during like wind, rain and snow weather, when the operation vehicle gets off from the decking that is first inclination, sometimes can stop not live the car, can directly dash on the decking on the vertical support steel sheet of second, very easy emergence is dangerous, be the setting of second inclination with the decking on the vertical support steel sheet of second, the speed that can slow down operation vehicle to a certain extent, avoid dangerous emergence.
And secondly, a plurality of cross-shaped bulges matched with the cross-shaped grooves are equidistantly arranged on the bottom surfaces of the first transverse supporting steel frame and the second transverse supporting steel frame.
The top surface of the first transverse supporting steel frame and the top surface of the second transverse supporting frame are arranged to be inclined surfaces, so that the first longitudinal supporting steel frame and the second longitudinal supporting steel frame can be conveniently arranged to be in an inclined state, the contact surfaces of the first transverse supporting steel frame and the first longitudinal supporting steel frame and the contact surfaces of the second transverse supporting steel frame and the second longitudinal supporting steel frame are more attached, and the combination between the first transverse supporting steel frame and the second longitudinal supporting steel frame is more stable. The top surfaces of the first transverse supporting steel frame and the second transverse supporting steel frame are respectively provided with a first strip-shaped groove and a second strip-shaped groove, and the inclination angles of the top surfaces of the first transverse supporting frame and the second transverse supporting frame are different, so that the height difference of two side walls of the two strip-shaped grooves is different. The steel frame support structure comprises a first longitudinal support steel frame, a plurality of first strip-shaped bulges, a plurality of second strip-shaped bulges, a first strip-shaped bulge and a second strip-shaped bulge, wherein the first strip-shaped bulges and the second strip-shaped bulges are arranged below the second longitudinal support steel frame at equal intervals, the first strip-shaped bulges are arranged in first strip-shaped grooves, the second strip-shaped bulges are arranged in second strip-shaped grooves, the first strip-shaped bulges and the second strip-shaped bulges are arranged vertically downwards, the first longitudinal support steel frame can be easily fixed on the first transverse support steel frame, the second longitudinal support steel frame is fixed on the second transverse support steel frame, the steel frame support structure can not be used for a long time, and the positions of the first longitudinal support steel frame and the second longitudinal support steel frame can not be moved.
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 structural diagram of a connection structure of a concrete trestle and a foundation pit according to an embodiment of the invention;
fig. 2 is a schematic side view of a connection structure of a concrete trestle and a foundation pit according to another embodiment of the invention.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description text.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 and 2, an embodiment of the present invention provides a concrete trestle and foundation pit connection structure, including: the first vertical supporting steel frame comprises a plurality of first square steel pipe piles 1, the first square steel pipe piles 1 form a first steel pipe network which is arranged in a longitudinal and transverse mode and is close to the edge of a foundation pit and a second steel pipe network which is close to the center of the foundation pit, the first square steel pipe piles in each longitudinal row in the first steel pipe network are arranged from high to low to form a first inclination angle, the first square steel pipe piles in each longitudinal row in the second steel pipe network are arranged from low to high to form a second inclination angle, the first square steel pipe piles in each transverse row are the same in height, the first inclination angle is larger than the second inclination angle, and a cross groove 4 is formed in the top end of each first square steel pipe pile; a first transverse supporting steel frame 2 and a second transverse supporting steel frame 3, wherein the first transverse supporting steel frame 2 is arranged above the plurality of first square steel pipe piles 1 in each transverse row of the first steel pipe network, the second transverse supporting steel frames 3 are arranged above the plurality of first square steel pipe piles 1 in each transverse row of the second steel pipe network, a plurality of cross bulges 5 matched with the cross grooves are arranged on the bottom surfaces of the first transverse supporting steel frame 2 and the second transverse supporting steel frame 3 at equal intervals, so that the cross bulges 5 are positioned in the cross grooves 4, wherein the top surfaces of the first transverse supporting steel frames 2 are obliquely arranged to form a first inclination angle, the top surfaces of the second transverse supporting steel frames 3 are obliquely arranged to form a second inclination angle, a first strip-shaped groove 6 and a second strip-shaped groove 7 are respectively arranged on the top surfaces of the first transverse supporting steel frame 2 and the second transverse supporting steel frame 3; a first longitudinal supporting steel frame 8 and a second longitudinal supporting steel frame 9, wherein the first longitudinal supporting steel frame 8 is arranged above the plurality of first transverse supporting steel frames 2 and is arranged at a first inclination angle, the second longitudinal supporting steel frame 9 is arranged above the plurality of second transverse supporting steel frames 3 and is arranged at a second inclination angle, a plurality of first elongated protrusions 10 are arranged below the first longitudinal supporting steel frame 8 at equal intervals, a plurality of second elongated protrusions 11 are arranged below the second longitudinal supporting steel frame 9, the directions of the first elongated protrusions 10 and the second elongated protrusions 11 are vertically and downwards arranged, so that the first elongated protrusions 10 are positioned in the first elongated grooves 6, the second elongated protrusions 11 are positioned in the second elongated grooves 7, and the first longitudinal supporting steel frame 8 and the second longitudinal supporting steel frame 9 are fixed conveniently, and a transverse bridge deck 12 is arranged on the first longitudinal supporting steel frame 8 and the second longitudinal supporting steel frame 9.
In the above embodiment, the first steel pipe network and the second steel pipe network which are arranged in a horizontal and vertical manner are not specifically limited with respect to the number of the first square steel pipe piles which are arranged in a horizontal manner and the number of the first square steel pipe piles which are arranged in a vertical manner, and may be specifically set according to actual conditions. In fig. 1, it is shown that the number of the first square steel pipe piles longitudinally arranged in the first steel pipe network is 5, and the number of the first square steel pipe piles longitudinally arranged in the second steel pipe network is 3.
In the above embodiment, the size of the cross groove 4 and the size of the cross protrusion 5 are not specifically limited in the embodiment of the present invention, and may be specifically limited according to the size of the transverse area of the first square steel pipe pile 1 in actual setting, preferably, the width of the cross groove is half of the length of the side of the cross section of the first square steel pipe pile, and the depth of the cross groove and the height of the cross protrusion are preferably set to be 15-20 cm, and if the cross groove and the cross protrusion are particularly high, transportation is not facilitated. The length of the first elongated groove and the second elongated groove is determined according to the length of the arranged transverse supporting steel frame, the width is preferably half of the width of the transverse supporting steel frame, and the depth is preferably half of the height of the transverse supporting steel frame, or slightly more than half.
In order to make the junction between the horizontal bridge deck disposed on the first longitudinal supporting steel frame and the bridge deck disposed on the second longitudinal supporting steel frame more compact and to make the whole connection structure more firm, in one embodiment, the concrete trestle and foundation pit connection structure further includes: a first inclined groove 14 matched with the port of the cross section of the first longitudinal support steel frame and a second inclined groove 15 matched with the port of the cross section of the second longitudinal support steel frame are respectively arranged on two side edges of the upper end of the second vertical support steel frame 13, so that the end of the first longitudinal support steel frame 8 is positioned in the first inclined groove 14, and the end of the second longitudinal support steel frame 9 is positioned in the second inclined groove 15; and the arc-shaped connecting block 16 is arranged above the second vertical supporting steel frame 13 and is used for connecting a transverse bridge deck positioned above the first vertical supporting steel frame 8 and a transverse bridge deck positioned above the second vertical supporting steel frame 9.
In the above-described embodiment, the arc-shaped connection plate 16 is provided in such an arc shape that the connection portion is made as gentle as possible and the work vehicle travels more stably. And the arrangement of the first inclined groove 14 and the second inclined groove 15 makes the first longitudinal support steel frame 8 and the second longitudinal support steel frame 9 more stable and firm, and further enhances the bearing capacity and stability of the whole connecting structure. The inclination angle of the groove wall of the first inclined groove 14 is the same as the first inclination angle, and the inclination angle of the groove wall of the second inclined groove 15 is the same as the second inclination angle. In addition, the number of the second vertical supporting steel frames 13 is equal to the number of the first vertical supporting steel frames and the second vertical supporting steel frames.
In order to further improve the stability of the plurality of first square steel pipe piles, in one specific embodiment, in the concrete trestle and foundation pit connection structure, a square groove 17 is formed in each of four surfaces of the plurality of first square steel pipe piles 1 at the same height;
further comprising: the inclined support steel frame 18 comprises a first part 181 arranged at the upper end and matched with the square groove 17, a second part 182 connected with the first part and arranged in an inclined mode, and a third part 183 arranged at the bottom end and connected with the second part, wherein the first parts 181 of the four inclined support steel frames 18 are respectively located in the four square grooves 17 of a first steel pipe pile to support the first square steel pipe pile 1.
In the above-mentioned embodiment, every first square steel pipe pile 1 all has four bearing diagonal steelframes 18 to it is fixed, and the firm mode between bearing diagonal steelframe 18 and the first square steel pipe pile 1 does not use parts such as bolt, and the installation of being convenient for, also convenient to detach can also reuse in addition afterwards, also can not lead to reasons such as the bolt rusts because of long-term construction and make the dismantlement difficult, can not used repeatedly.
In one specific embodiment, in the concrete trestle and foundation pit connection structure, a first groove 184 or a first protrusion 185 is arranged on the outward side surface of the third part 183 of the inclined support steel frame 18, one of the third parts 183 of two adjacent inclined support steel frames is provided with the first groove 184, and the other one is provided with the first protrusion 185, so that the first protrusion 185 is just positioned in the first groove 184, the stability of the first steel pipe network and the second steel pipe network is further strengthened, and the overall bearing capacity is also enhanced. The size of the first groove and the first protrusion is not particularly limited in the embodiments of the present invention, and may be specifically set according to actual situations.
In order to facilitate the first longitudinal support steel frame and the second longitudinal support steel frame to find the set position quickly without adjustment, in one specific embodiment, the concrete trestle and the foundation pit connecting structure is provided with a plurality of circular grooves in the first elongated grooves 6 of the first transverse support steel frame 2 and the second elongated grooves 7 of the second transverse support steel frame 3, and circular protrusions 19 matched with the circular grooves are arranged below the first elongated protrusions 10 of the first longitudinal support steel frame 8 and below the second elongated protrusions 11 of the second longitudinal support steel frame 9, so that the first longitudinal support steel frame 8 and the second longitudinal support steel frame 9 can be positioned conveniently.
In the above embodiment, the depth of the circular groove is preferably 3 to 4 cm. The circular groove and the circular protrusion are convenient for positioning the first longitudinal support steel frame and the second longitudinal support steel frame, and the stability of the transverse support steel frame and the longitudinal support steel frame is further enhanced to a certain extent.
In one specific embodiment, in the concrete trestle and foundation pit connection structure, the width of the transverse bridge deck on the first longitudinal support steel frame 8 is set in a manner of alternating narrow and wide, and the buffer strip is arranged on the narrow transverse bridge deck. The buffer zone can increase the safety of the working vehicle.
In one specific embodiment, in the concrete trestle and foundation pit connection structure, the first inclination angle ranges from 20 degrees to 40 degrees, and the second inclination angle is smaller than 8 degrees. The first inclination angle that sets up can not be too big, and the purpose is in order to play the cushioning effect, if the too big of setting, just can not place construction equipment on the horizontal decking on the second vertical support steelframe.
As mentioned above, the invention has the advantages of convenient installation, good stability, high supporting strength, convenient disassembly and repeated use.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (9)
1. Concrete trestle and foundation ditch connection structure, its characterized in that includes:
the first vertical supporting steel frame comprises a plurality of first square steel pipe piles, the first square steel pipe piles form a first steel pipe network which is arranged vertically and horizontally and is close to the edge of a foundation pit and a second steel pipe network which is close to the center of the foundation pit, the heights of the first square steel pipe piles in each vertical row in the first steel pipe network are arranged from high to low to form a first inclination angle, the heights of the first square steel pipe piles in each vertical row in the second steel pipe network are arranged from low to high to form a second inclination angle, and the heights of the first square steel pipe piles in each horizontal row are the same;
the steel pipe network comprises a first transverse supporting steel frame and a second transverse supporting steel frame, wherein the first transverse supporting steel frame is arranged above a plurality of first square steel pipe piles of each transverse row of the first steel pipe network, the second transverse supporting steel frame is arranged above a plurality of first square steel pipe piles of each transverse row of the second steel pipe network, the top surfaces of the first transverse supporting steel frames are obliquely arranged to form a first inclination angle, the top surfaces of the second transverse supporting steel frames are obliquely arranged to form a second inclination angle, and a first elongated groove and a second elongated groove are respectively arranged on the top surfaces of the first transverse supporting steel frame and the second transverse supporting steel frame;
a first longitudinal supporting steel frame and a second longitudinal supporting steel frame, wherein the first longitudinal supporting steel frame is arranged above the plurality of first transverse supporting steel frames and is arranged at a first inclination angle, the second longitudinal supporting steel frames are arranged above the plurality of second transverse supporting steel frames at a second inclination angle, a plurality of first elongated bulges are arranged below the first longitudinal support steel frame at equal intervals, a plurality of second elongated bulges are arranged below the second longitudinal support steel frame, the first strip-shaped bulge and the second strip-shaped bulge are vertically and downwards arranged in the direction to ensure that the first strip-shaped bulge is positioned in the first strip-shaped groove, the second elongated protrusion is positioned in the second elongated groove, so that the first longitudinal support steel frame and the second longitudinal support steel frame are fixed conveniently, and transverse bridge decks are arranged on the first longitudinal supporting steel frame and the second longitudinal supporting steel frame.
2. The concrete trestle and foundation pit connection structure of claim 1, further comprising:
two side edges of the upper end of the second vertical supporting steel frame are respectively provided with a first inclined groove matched with the port of the cross section of the first longitudinal supporting steel frame and a second inclined groove matched with the port of the cross section of the second longitudinal supporting steel frame, so that the end head of the first longitudinal supporting steel frame is positioned in the first inclined groove, and the end head of the second longitudinal supporting steel frame is positioned in the second inclined groove;
and the arc-shaped connecting block is arranged above the second vertical supporting steel frame and is used for connecting the transverse bridge deck positioned above the first vertical supporting steel frame and the transverse bridge deck positioned above the second vertical supporting steel frame.
3. The concrete trestle and foundation pit connecting structure of claim 2, wherein a square groove is formed on each of four faces of the first square steel pipe piles at the same height;
further comprising: the inclined support steel frame comprises a first part, a second part and a third part, wherein the first part is arranged at the upper end of the inclined support steel frame and matched with the square groove, the second part is connected with the first part in an inclined mode, the third part is arranged at the bottom end of the inclined support steel frame and connected with the second part, and the first parts of the four inclined support steel frames are respectively located in the four square grooves of the first steel pipe pile to support the first steel pipe pile.
4. The concrete trestle and foundation pit connection structure of claim 3, wherein a first groove or a first protrusion is arranged on the outward side surface of the third part of the inclined support steel frame, one of the third parts of two adjacent inclined support steel frames is provided with a first groove, and the other one is provided with a first protrusion, so that the first protrusion is just positioned in the first groove, and the stability of the first steel pipe network and the second steel pipe network is further strengthened.
5. The concrete trestle and foundation pit connection structure of claim 1, wherein the specific arrangement of the first and second lateral support steel frames is as follows: every be provided with the cross recess on the top of first square steel tubular pile first horizontal support steelframe with the equidistant cross arch that is provided with a plurality of and cross recess looks adaptation in the bottom surface of second horizontal support steelframe makes the cross arch is located in the cross recess.
6. The concrete trestle and foundation pit connection structure of claim 1, wherein a plurality of circular grooves are equally spaced in the first elongated groove of the first transverse support steel frame and in the second elongated groove of the second transverse support steel frame, and circular protrusions matched with the circular grooves are arranged below the first elongated protrusion of the first longitudinal support steel frame and below the second elongated protrusion of the second longitudinal support steel frame, so that the first longitudinal support steel frame and the second longitudinal support steel frame can be conveniently positioned.
7. The concrete trestle and foundation pit connection structure of claim 2, wherein the width of the transverse deck slab above the first longitudinal support steel frame is arranged in an alternating manner of narrow and wide, and the buffer strip is arranged on the narrow transverse deck slab.
8. The concrete trestle and foundation pit connection structure of claim 1, wherein the first angle of inclination is greater than the second angle of inclination.
9. The concrete trestle and foundation pit connection structure of claim 8, wherein the first angle of inclination ranges from 20 degrees to 40 degrees, and the second angle of inclination is less than 8 degrees.
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Application publication date: 20211214 |