Assembly type overlapped supporting beam section structure convenient to mount and dismount
By using prefabricated composite support beam segments, the problems of inconvenient construction and low material recycling value in foundation pit support are solved, enabling rapid installation and dismantling, reducing construction costs and improving the reuse rate of materials.
Patent Information
- Application Number
- CN202423294370.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Existing foundation pit support methods have problems such as limited application, inconvenient construction, long construction period, difficult dismantling, low material recycling value and high cost. Especially under high stress and tight schedule, there is a lack of prefabricated reinforced concrete support beam structures that can be quickly installed and dismantled.
The prefabricated composite support beam segment structure includes standard steel-concrete beam segments, short steel-concrete beam segments, end connecting blocks, and butt steel plates. Rapid installation and dismantling are achieved through the upper and lower composite structure and connectors. The beam segments can be prefabricated in the factory and spliced on site, using bolts and nuts for connection, and are suitable for various foundation pit shapes.
It enables rapid construction and dismantling of internal supports in foundation pits, reduces construction cycle and cost, improves material reuse rate, reduces carbon emissions, and is suitable for various foundation pit shapes and complex environments.
Smart Images
Figure CN223660849U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a foundation pit support assembly type support structure, specifically is a kind of assembly type superimposed support beam segment structure of convenient installation and dismantling. BACKGROUND
[0002] Most of the foundation pit support forms that need to be supported adopt anchor cable, cast-in-place concrete inner support, steel support and the like. These support forms have been widely applied to various projects, and the support system has been very perfect, but there are still limitations in use and inconvenience in construction and other problems. The main problems are: ①In some areas, anchor cable cannot be out of the red line or there are factors such as pipe network and building around the foundation pit, which makes the use of anchor cable support have great limitations; ②The construction period of cast-in-place concrete support is long, and the concrete curing period needs to reach the design use requirement before continuing to construct, in addition, the cast-in-place concrete support is difficult to dismantle, and the recycled value of the reinforced concrete after dismantling is low; ③Although steel support can be reused, and the construction period is short, the material price is high, and the construction cost of steel support is very high when deformation needs to be controlled in a stress area. Therefore, for the foundation pit with high stress and high deformation control requirement, under the condition of urgent construction period, it is a better choice to develop an assembly type reinforced concrete support beam structure that can be quickly installed and dismantled (see invention CN118727775A). In order to further overcome the shortcomings of the assembly type reinforced concrete support beam segment that is heavy and difficult to hoist, it is necessary to develop a new superimposed support beam segment structure. SUMMARY
[0003] The utility model aims at providing an assembly type superimposed support beam segment structure that is convenient to install and dismantle (especially convenient to hoist), the new support beam segment structure not only can shorten the construction period, but also can be recycled and reused as a whole, and truly realize green support of foundation pit.
[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: an assembly type superimposed support beam segment structure that is convenient to install and dismantle, comprising standard steel-concrete beam piece, short steel-concrete beam piece, end connecting block, butt joint steel plate, the assembly type superimposed support beam segment structure is two-layer superimposed structure, each layer is formed by splicing multiple standard steel-concrete beam pieces or standard steel-concrete beam piece and short steel-concrete beam piece; the length of the standard steel-concrete beam piece is twice the length of the short steel-concrete beam piece, and the cross-sectional dimensions of the two are the same; each splicing position of the upper layer is located at the midline position of the longitudinal length of the corresponding standard steel-concrete beam piece of the lower layer; each splicing position of the lower layer is located at the midline position of the longitudinal length of the corresponding standard steel-concrete beam piece of the upper layer; two butt joint steel plates are arranged at each splicing position to realize the connection of adjacent standard steel-concrete beam pieces or standard steel-concrete beam piece and short steel-concrete beam piece, and link two superimposed structures into a whole; two end connecting blocks are arranged at both ends of the assembly type superimposed support beam segment to realize the linkage of the end portions of two superimposed structures.
[0005] Preferably, the end of the standard steel-concrete beam piece and the end of the short steel-concrete beam piece are respectively provided with two rows of vertical connecting holes and two rows of vertical connecting holes, and two rows of vertical butt holes are symmetrically arranged on both sides of the middle line of the longitudinal length of the standard steel-concrete beam piece; the vertical connecting holes, the vertical connecting holes and the vertical butt holes have the same hole diameter, row distance and hole distance and are all through holes; the distance from one row of vertical connecting holes close to the end face of the standard steel-concrete beam piece to the end face is equal to half of the row distance of the vertical connecting holes; the distance from one row of vertical connecting holes close to the end face of the short steel-concrete beam piece to the end face is equal to half of the row distance of the vertical connecting holes.
[0006] Preferably, the width of the butt steel plate is equal to the width of the standard steel-concrete beam piece or the short steel-concrete beam piece, and the butt steel plate is arranged with four rows of holes which are matched with the vertical butt holes of the standard steel-concrete beam piece.
[0007] Preferably, the structure of the splicing position has two kinds: one is that the holes of the upper and lower butt steel plates and the four rows of vertical connecting holes in one layer and the vertical butt holes in another layer of the two-layer superimposed structure of the splicing position form through holes one by one, and a vertical screw is inserted in each through hole, the both ends of the vertical screw extend out of the upper and lower butt steel plates, and the extending parts are provided with vertical screw nuts; the other is that the holes of the upper and lower butt steel plates and the two rows of vertical connecting holes and the two rows of vertical connecting holes in one layer and the vertical butt holes in another layer of the two-layer superimposed structure of the splicing position form through holes one by one, and a vertical screw is inserted in each through hole, the both ends of the vertical screw extend out of the upper and lower butt steel plates, and the extending parts are provided with vertical screw nuts.
[0008] Preferably, the end side of the standard steel-concrete beam piece and the end side of the short steel-concrete beam piece are respectively provided with two rows of horizontal butt holes and horizontal connecting holes, and two rows of horizontal contact holes are symmetrically arranged on both sides of the middle line of the longitudinal length of the standard steel-concrete beam piece; the horizontal butt holes, the horizontal connecting holes have the same hole diameter, the same hole distance and the same row distance and are all through holes, and the distance from one row of horizontal butt holes or horizontal connecting holes close to the end face of the standard steel-concrete beam piece or the short steel-concrete beam piece to the end face is equal to the row distance, and the distance between the two rows of holes in the middle of the horizontal contact holes is twice the row distance of the two rows of holes on the side; the horizontal butt holes and the vertical connecting holes do not intersect, the horizontal connecting holes and the vertical connecting holes do not intersect, and the horizontal contact holes and the vertical butt holes do not intersect.
[0009] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:
[0010] Firstly, the utility model provides a kind of assembled superimposed support beam section structure of convenient installation and removal, realizes the assembled construction of support in foundation pit, eliminates the reinforcing bar binding, concrete curing process of support in foundation pit, shortens the construction period of support in foundation pit, saves time cost.
[0011] The utility model provides a kind of assembled composite support beam segment structure of convenient installation and dismantling, realize the prefabrication of support beam segment in factory, prefabricated foundation pit concrete support beam segment can be directly used after being transported to construction site, the speed of in-situ construction of inner support of foundation pit is accelerated, and the construction cycle of inner support of foundation pit is shortened.
[0012] Three, the utility model adopts composite beam support, can the beam segment is divided into multiple segment beams and spliced, so as to reduce the weight and volume of single standard segment beam, more convenient transportation, hoisting, splicing and dismantling.
[0013] Four, the utility model can be recycled after use, and the foundation pit support beam segment can be reused, greatly reduce the cost of inner support of foundation pit, also greatly reduce carbon emissions.
[0014] Five, the utility model can be used as support component alone, also can be used as main support, cooperate with steel auxiliary support, and the formed inner support plane structure can also be various, can be used in various foundation pit shapes, with good economic benefit, has wide application prospect. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is the structure schematic view of standard steel concrete beam piece.
[0016] Figure 2 It is the structure schematic view of short steel concrete beam piece.
[0017] Figure 3 It is the structure schematic view of butt joint steel plate and end connecting block.
[0018] Figure 4 It is the structure schematic view of composite support beam segment structure spliced by standard steel concrete beam piece and short steel concrete beam piece.
[0019] Figure 5 It is the structure schematic view of H-shaped steel auxiliary support connected in two parallel composite support beam segments.
[0020] In the drawing: 1, standard steel concrete beam piece;101, vertical connecting hole;102, horizontal contact hole;103, vertical butt joint hole;104, horizontal butt joint hole;2, short steel concrete beam piece;201, vertical connecting hole;202, horizontal connecting hole;3, end connecting block;4, butt joint steel plate;401, hole;5, vertical screw;6, vertical nut;7, H-shaped steel;8, side connecting steel plate;9, horizontal nut;10, horizontal screw. DETAILED DESCRIPTION
[0021] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.
[0022] As shown in the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application. Figures 1-4 The assembled laminated support beam segment structure is a two-layer laminated structure, each layer is spliced by a plurality of standard steel-concrete beam pieces 1 or a standard steel-concrete beam piece 1 and a short steel-concrete beam piece 2; the length of the standard steel-concrete beam piece 1 is twice the length of the short steel-concrete beam piece 2, and the cross-sectional dimensions of the two are the same; each splicing position of the upper layer is located at the midline position of the longitudinal length of the corresponding standard steel-concrete beam piece 1 of the lower layer; each splicing position of the lower layer is located at the midline position of the longitudinal length of the corresponding standard steel-concrete beam piece 1 of the upper layer; the two blocks of butt-joint steel plates 4 arranged at each splicing position realize the connection of the adjacent standard steel-concrete beam pieces 1 or the standard steel-concrete beam piece 1 and the short steel-concrete beam piece 2, and link the two-layer laminated structure into a whole; the two blocks of end connection blocks 3 arranged at the two ends of the assembled laminated support beam segment realize the linking of the end portions of the two-layer laminated structure.
[0023] Preferably, the end portions of the standard steel-concrete beam piece 1 and the short steel-concrete beam piece 2 are respectively provided with two rows of vertical connection holes 101 and two rows of vertical connection holes 201, and the standard steel-concrete beam piece 1 is symmetrically provided with two rows of vertical butt-joint holes 103 on both sides of the midline of the longitudinal length; the hole diameters, row distances and hole distances of the vertical connection holes 101, the vertical connection holes 201 and the vertical butt-joint holes 103 are the same and are all through holes; the distance from the row of vertical connection holes 101 close to the end face of the standard steel-concrete beam piece 1 to the end face is equal to half of the row distance of the vertical connection holes 101; the distance from the row of vertical connection holes 201 close to the end face of the short steel-concrete beam piece 2 to the end face is equal to half of the row distance of the vertical connection holes 201.
[0024] Preferably, the width of the butt-joint steel plate 4 is equal to the width of the standard steel-concrete beam piece 1 or the short steel-concrete beam piece 2, and the butt-joint steel plate 4 is arranged with four rows of hole holes 401, which are matched with the vertical butt-joint holes 103 of the standard steel-concrete beam piece 1.
[0025] Preferably, there are two types of structures at the splicing position: one type is where the holes 401 of the two upper and lower connecting steel plates 4 correspond one-to-one with the four rows of vertical connecting holes 101 in one layer and the vertical connecting holes 103 in the other layer of the two-layer composite structure at the splicing position to form through holes, and a vertical screw 5 is inserted into each through hole, with both ends of the vertical screw 5 extending beyond the upper and lower connecting steel plates 4, and the extended part has a tightening vertical nut 6; the other type is where the holes 401 of the two upper and lower connecting steel plates 4 correspond one-to-one with the two rows of vertical connecting holes 101 and two rows of vertical connecting holes 201 in one layer of the two-layer composite structure at the splicing position and the vertical connecting holes 103 in the other layer to form through holes, and a vertical screw 5 is inserted into each through hole, with both ends of the vertical screw 5 extending beyond the upper and lower connecting steel plates 4, and the extended part has a tightening vertical nut 6.
[0026] Preferably, the end sides of the standard steel-concrete beam 1 and the short steel-concrete beam 2 are respectively provided with two rows of transverse butt holes 104 and transverse connecting holes 202. Two rows of transverse connecting holes 102 are symmetrically arranged on both sides of the centerline of the longitudinal length of the standard steel-concrete beam 1. The transverse butt holes 104 and transverse connecting holes 202 have the same hole diameter, the same hole spacing, the same row spacing, and are all through holes. The distance from the end face of the row of transverse butt holes 104 or transverse connecting holes 202 close to the end face of the standard steel-concrete beam 1 or the short steel-concrete beam 2 is equal to the row spacing. The spacing between the middle two rows of transverse connecting holes 102 is twice the row spacing of the adjacent two rows of holes. The transverse butt holes 104 do not intersect with the vertical connecting holes 101, the transverse connecting holes 202 do not intersect with the vertical connecting holes 201, and the transverse connecting holes 102 do not intersect with the vertical butt holes 103.
[0027] like Figure 5 This is a schematic diagram of the installation of the utility model as a main support and a steel structure auxiliary support. Two parallel, overlapping support beam segments are connected by an H-beam 7 as an auxiliary support. At this time, after the holes 401 on the side connecting steel plate 8 correspond one-to-one with the transverse connecting holes 202 and transverse mating holes 104 at the splicing position to form through holes, transverse screws 10 are inserted and fixed with transverse nuts 9; the end face of the connecting H-beam 7 is welded to the side connecting steel plate 8.
[0028] remove Figure 5 In addition to the embodiments described above, this utility model can also be used in conjunction with steel pipe or channel steel auxiliary supports, and two auxiliary supports can be connected to either side of each node.
[0029] In the foundation pit site installation, first prepare the lattice column and the corbel, and set the bracket and the bearing platform on the corbel. Prepare the temporary bracket, use the crane to hoist the standard steel concrete beam piece 1 and the short steel concrete beam piece 2 piece by piece and assemble into a root assembly type superimposed support beam section one by one with the vertical screw rod 5 and the vertical screw nut 6, make the beam section end head place on the bearing platform, the middle part place on the lattice column, form the main support. After the main support construction, the steel structure auxiliary support between the construction support, the construction sequence is first fixed the side connection steel plate 8 with the horizontal screw rod 10 and the horizontal screw nut 9, then weld the steel structure auxiliary support's skeleton piece on the side connection steel plate 8.
[0030] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A prefabricated composite support beam segment structure which is convenient to install and remove, comprising a standard steel-concrete beam piece (1), a short steel-concrete beam piece (2), an end connecting block (3), and a butt joint steel plate (4), characterized in that: The prefabricated composite support beam segment structure is a two-layer composite structure, each layer is spliced together by multiple standard steel-concrete beam segments (1) or standard steel-concrete beam segments (1) and short steel-concrete beam segments (2); the length of the standard steel-concrete beam segment (1) is twice that of the short steel-concrete beam segment (2), and the two have the same cross-sectional dimensions; each splicing position of the upper layer is located at the centerline of the longitudinal length of the lower layer standard steel-concrete beam segment (1) corresponding to the splicing position; each splicing position of the lower layer is located at the centerline of the longitudinal length of the upper layer standard steel-concrete beam segment (1) corresponding to the splicing position; each splicing position is provided with two butt joint steel plates (4) across the joint to connect adjacent standard steel-concrete beam segments (1) or standard steel-concrete beam segments (1) and short steel-concrete beam segments (2) and connect the two layers of composite structure into a whole; two end connecting blocks (3) are provided at both ends of the prefabricated composite support beam segment to connect the ends of the two layers of composite structure.
2. The prefabricated composite support beam segment structure of claim 1, wherein: The standard steel-concrete beam (1) and the short steel-concrete beam (2) have two rows of vertical connecting holes (101) and two rows of vertical connecting holes (201) at their ends, respectively. Two rows of vertical connecting holes (103) are symmetrically arranged on both sides of the centerline of the longitudinal length of the standard steel-concrete beam (1). The diameter, row spacing and hole spacing of the vertical connecting holes (101), vertical connecting holes (201) and vertical connecting holes (103) are the same and are all through holes. The distance from the row of vertical connecting holes (101) near the end face of the standard steel-concrete beam (1) to the end face is equal to half of the row spacing of the vertical connecting holes (101). The distance from the row of vertical connecting holes (201) near the end face of the short steel-concrete beam (2) to the end face is equal to half of the row spacing of the vertical connecting holes (201).
3. The prefabricated composite support beam segment structure of claim 2, wherein: The width of the connecting steel plate (4) is equal to the width of the standard steel-concrete beam (1) or the short steel-concrete beam (2). The connecting steel plate (4) is arranged with four rows of holes (401), which are adapted to the vertical connecting holes (103) of the standard steel-concrete beam (1).
4. The prefabricated composite support beam segment structure of claim 2, wherein: There are two types of structures for the splicing position: one type is that the holes (401) of the two upper and lower steel plates (4) correspond one-to-one with the four rows of vertical connecting holes (101) in one layer of the two-layer composite structure of the splicing position and the vertical connecting holes (103) in the other layer to form through holes, and a vertical screw (5) is inserted into each through hole. The two ends of the vertical screw (5) extend beyond the upper and lower steel plates (4), and the extended part has a tightening vertical nut (6); the other type is that the holes (401) of the two upper and lower steel plates (4) correspond one-to-one with the two rows of vertical connecting holes (101) and two rows of vertical connecting holes (201) in one layer of the two-layer composite structure of the splicing position and the vertical connecting holes (103) in the other layer to form through holes, and a vertical screw (5) is inserted into each through hole. The two ends of the vertical screw (5) extend beyond the upper and lower steel plates (4), and the extended part has a tightening vertical nut (6).
5. The prefabricated composite support beam segment structure of claim 2, wherein: The standard steel-concrete beam (1) and the short steel-concrete beam (2) are provided with two rows of transverse butt holes (104) and transverse connecting holes (202) on the end sides respectively. Two rows of transverse connecting holes (102) are symmetrically arranged on both sides of the centerline of the longitudinal length of the standard steel-concrete beam (1). The transverse butt holes (104) and transverse connecting holes (202) have the same hole diameter, the same hole spacing, the same row spacing and are all through holes, and are close to the standard steel-concrete beam (1) or the short steel-concrete beam (2). The distance from a row of transverse connecting holes (104) or transverse connecting holes (202) on the end face to the end face is equal to the row spacing. The spacing between the two middle rows of transverse connecting holes (102) is twice the row spacing of the two adjacent rows of holes. The transverse connecting holes (104) do not intersect with the vertical connecting holes (101), the transverse connecting holes (202) do not intersect with the vertical connecting holes (201), and the transverse connecting holes (102) do not intersect with the vertical connecting holes (103).