Steel structure foundation concrete straining beam integrated suspension disassembly-free device and method

Abstract

The invention provides a steel structure foundation concrete straining beam integrated suspension disassembly-free device and method.The device comprises a prefabricated concrete member, the prefabricated concrete member is of a shell structure with an opening in the upper portion, and the upper end of the prefabricated concrete member is connected with a steel wire rope; the other ends of the steel wire ropes are connected with steel structure columns at the two ends of the prefabricated concrete member, the prefabricated concrete member serves as a foundation straining beam formwork, concrete is poured into the prefabricated concrete member, and the prefabricated concrete member and post-poured concrete integrally serve as a foundation straining beam. According to the device, the precast concrete member is used as the foundation straining beam outer formwork, the formwork does not need to be dismantled after construction, the formwork dismantling labor cost is saved, and the formwork dismantling period is shortened.

Description

Technical Field

[0001] The invention relates to the field of building construction, and in particular to a steel structure foundation concrete tension beam integrated suspension non-disassembly device and method. Background Art

[0002] During the construction of prefabricated steel structure projects, the bottom surface of the foundation tie beam and the bottom surface of the foundation are often designed to be different elevations, resulting in a complex construction process for the foundation tie beam, a greater difficulty in setting up the formwork, and a longer construction period. There are two traditional methods for the construction of foundation tie beams: one method is to excavate the entire foundation trench to the foundation bottom elevation, set up formwork supports at the foundation tie beam location, and install the foundation tie beam formwork. This method consumes a large amount of materials such as formwork, wood, steel pipes, and tension screws, and is difficult to construct. After the foundation tie beam concrete is poured, it is necessary to wait until the foundation tie beam concrete strength reaches 100% before the foundation tie beam formwork and formwork supports can be removed for foundation backfilling, and the construction period is long; the other method is to excavate the foundation tie beam trench separately to the foundation tie beam bottom elevation and then cast the cushion layer, and then lay the foundation tie beam brick membrane or support the foundation tie beam formwork, which consumes a large amount of labor and materials, and the node connection with the steel structure column still needs to support the formwork support separately, and the construction difficulty is still relatively large. Summary of the invention

[0003] In view of the above problems, the present invention provides a steel structure foundation concrete tie beam integrated suspension non-disassembly device and method, which uses precast concrete components as the foundation tie beam outer formwork. The formwork does not need to be removed after construction, saving the labor cost and time of formwork removal.

[0004] A steel structure foundation concrete tie beam integrated suspension non-disassembly device comprises a precast concrete component, wherein the precast concrete component is a shell structure with an upper opening, the upper end of the precast concrete component is connected to a steel wire rope, the other end of the steel wire rope is connected to the steel structure columns at both ends of the precast concrete component, the precast concrete component serves as a foundation tie beam template, concrete is poured inside, and the precast concrete component and the post-poured concrete serve as a foundation tie beam as a whole. Preferably, the precast concrete component comprises a plurality of precast concrete panel units, and precast concrete reinforcing ribs are connected between adjacent precast concrete panel units.

[0005] Preferably, the precast concrete slab unit comprises a left slab unit, a bottom slab unit and a right slab unit which are connected in sequence, and the three slab units form a U-shaped structure. The left slab unit and the right slab unit are connected by two upper and lower first bolts, and the bottom slab unit is mounted above the lower first bolts.

[0006] Preferably, the precast concrete reinforcing ribs for connecting the left side plate unit and the precast concrete reinforcing ribs for connecting the right side plate unit are symmetrically arranged about the bottom plate unit, and the precast concrete reinforcing ribs for connecting the left and right side plate units and the precast concrete reinforcing ribs for connecting the bottom plate unit are staggered.

[0007] Preferably, the cross-sectional shape of the precast concrete panel unit is a convex shape, the wing panels on the left and right sides of the convex shape are inserted into the grooves of the precast concrete reinforcing ribs, and first threaded holes are reserved at the upper and lower ends of the left and right wing panels.

[0008] Preferably, the cross-section of the precast concrete reinforcing rib is an I-shaped shape, and grooves are provided on both the left and right sides thereof, and the wing plates of the precast concrete panel unit are inserted into the grooves. The upper and lower parts of the wing plates on both sides of the precast concrete reinforcing rib are reserved with second threaded holes of the same specification as the precast concrete panel unit, and after the precast concrete panel unit and the precast concrete reinforcing rib are inserted, the first threaded hole and the second threaded hole can be connected to each other. Preferably, the upper ends of the precast concrete reinforcing ribs for connecting the left plate unit and the upper ends of the precast concrete reinforcing ribs for connecting the right plate unit are both detachably connected with second bolts, and the lower ends of the steel wire ropes are connected to the second bolts.

[0009] Preferably, a column holding device is mounted on the upper end of the steel structure column, and the upper end of the steel wire rope is connected to the column holding device.

[0010] Preferably, the column holding device includes two U-shaped plates butted against each other, the two U-shaped plates are connected to each other by a third bolt, a rubber plate is installed inside each U-shaped plate, and each U-shaped plate is threadedly connected with a fourth bolt, the fourth bolt penetrates the U-shaped plate inwardly and is hinged to the rubber plate, and the bolt is used to adjust the pressure on the contact surface between the rubber plate and the steel structure column to ensure that the column holding device and the steel structure column are firmly fixed.

[0011] Preferably, the rubber sheet is a rubber sheet with a steel base and a wool surface.

[0012] Preferably, the column holding device is connected to the second bolt at the upper end of the precast concrete reinforcing rib by a steel wire rope and a basket bolt, and the deflection of the foundation concrete tension beam formwork is adjusted by adjusting the tightness of the steel wire rope through the basket bolt.

[0013] Preferably, a support frame is provided on the side of the steel structure column, and both ends of the precast concrete component are erected above the corresponding support frame.

[0014] The present invention also discloses a construction method for integrated suspension of concrete tension beams on a steel structure foundation without disassembly using the above device, comprising the following steps: Step 1: Before construction, prefabricate the left slab unit, bottom slab unit, right slab unit and corresponding prefabricated concrete reinforcement ribs in a standardized component processing plant according to the structural dimensions of the foundation concrete tension beam in the design drawings; Step 2: Weld the support frame at the corresponding position at the bottom of the foundation concrete tension beam on the steel structure column.

[0015] Step 3: Install the column holding device above the steel structure column, and connect the turnbuckle bolt and one end of the wire rope to the column holding device. Roughly adjust the length of the wire rope to roughly meet the distance between the column holding device and the hanging point of the precast concrete component.

[0016] Step 4: Assemble and combine the precast concrete panel units and the corresponding precast concrete reinforcement ribs on the ground, and fix the second bolts at the corresponding hanging point positions of the precast concrete reinforcement ribs.

[0017] Step 5: Use a lifting machine to lift the assembled precast concrete component and place it on the support frame of the steel structure column. The other end of the steel wire rope is connected to the second bolt on the precast concrete reinforcement rib. Adjust the basket bolt to make the bottom elevation of the precast concrete component meet the requirements.

[0018] Step 6: Install the foundation tie beam reinforcement in the precast concrete component, or hoist the foundation tie beam reinforcement that has been tied on the ground into the precast concrete component, and connect the foundation tie beam reinforcement with the steel structure column.

[0019] Step 7: Reinforce the precast concrete components, perform hidden steel bar inspection, and pour foundation tension beam concrete.

[0020] Step 8: Backfill the foundation pit to the top elevation of the foundation tension beam, and remove the second bolt, basket bolt, wire rope, and column holding device.

[0021] Compared with the prior art, the present invention has the following beneficial effects: 1. Use precast concrete components as formwork, and centrally process and manufacture them in standardized component factories to avoid waste of materials and energy, save carbon and protect the environment; the formwork does not need to be removed after construction, saving labor costs and time for formwork removal.

[0022] 2. After the foundation tie beam is cast, the foundation pit can be backfilled without waiting for the foundation tie beam concrete to reach the demolding strength, which greatly shortens the construction period of the foundation.

[0023] 3. The components of the suspension system, such as the wire rope, basket bolt, second bolt, column holding device, etc., can be dismantled and reused, and the materials can be recycled to save costs.

[0024] 4. The formwork construction process does not use wood or wooden formwork, which avoids wood cutting operations, noise and dust generation, is energy-saving and environmentally friendly, and meets green construction requirements.

[0025] 5. The integrated suspension system of concrete tension beams in steel structure foundation is simple to operate and easy to work, saving construction costs and construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 yes Figure 1 Middle AA section view; Figure 3 yes Figure 1 Middle BB section view; Figure 4 It is a schematic top view of the overall structure of the present invention; Figure 5 It is a schematic diagram of the structure of precast concrete components; Figure 6 It is a schematic diagram of the precast concrete reinforcement rib structure; In the figure, 1, steel structure column, 2, steel wire rope, 3, second bolt, 4, precast concrete component, 5, left plate unit, 6, bottom plate unit, 7, first bolt, 8, nut, 9, precast concrete reinforcement rib, 10, support frame, 11, right plate unit, 12, U-shaped plate, 13, rubber plate, 14, fourth bolt, 15, third bolt. DETAILED DESCRIPTION

[0028] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0029] like Figures 1 to 6As shown, the present invention discloses a steel structure foundation concrete tie beam integrated suspension non-disassembly device, which requires the production and processing of precast concrete thin-walled plates and precast concrete reinforcing ribs 9, and the thin-walled plates and precast concrete reinforcing ribs 9 are connected by screws to form a precast concrete component 4, which is a U-shaped structure and can be directly used as a casting template for the foundation tie beam. The installed steel structure column 1 is used as the anchor point of the precast concrete component 4 (at this time, the building steel structure has completed the installation of steel columns and steel beams to form a stable structural system, and the installation of the foundation concrete tie beam integrated suspension non-disassembly system will not cause the steel column to tilt and deform), and the column holding device is installed on the steel structure column 1, and the precast concrete reinforcing ribs 9 in the precast concrete component 4 are tied by steel wire ropes 2 and basket bolts. Angle steel is welded on the steel structure column 1 as a support frame 10, and the two ends of the precast concrete component 4 are supported and the template is positioned to form a foundation tie beam template suspension system, which is used as a support system for the foundation tie beam casting construction. The template and the post-cast concrete are used as part of the foundation tie beam. After the foundation tie beam is cast, the precast concrete component 4 is no longer removed. After the foundation tie beam is constructed, the foundation pit can be backfilled. Since the entire system is a suspension system, no material is buried in the soil after backfilling, causing material waste. The column holding device at the upper end of the steel structure column and the steel wire rope 2, basket bolts, second bolts 3 and other materials can be removed for turnover.

[0030] The precast concrete component 4 is made of a plurality of precast concrete panel units, and adjacent precast concrete panel units are connected with precast concrete reinforcing ribs 9. Figure 6 As shown, the cross section of the precast concrete reinforcing rib 9 is an I-shaped structure, and grooves are provided on the left and right sides of the precast concrete reinforcing rib 9. The precast concrete panel unit is inserted into the corresponding grooves, and the two are fastened by the first bolt 7 after insertion. The precast concrete panel unit includes a left panel unit 5, a bottom panel unit 6 and a right panel unit 11. The three parts of the precast concrete panel unit form a U-shaped structure. The left panel unit 5 and the right panel unit 11 are connected by the first bolt 7. The two ends of the first bolt protrude from the precast concrete panel unit and are fastened with nuts 8. The upper and lower first bolts 7 are installed on each left panel unit 5 and right panel unit 11. The bottom panel unit 6 is mounted above the first bolt 7 below to support the bottom panel unit 6.

[0031] The upper ends of the precast concrete reinforcing ribs 9 for connecting the left plate unit 5 and the upper ends of the precast concrete reinforcing ribs 9 for connecting the right plate unit 11 are both detachably connected with the second bolt 3, which is preferably a lifting eye screw, and the lower end of the steel wire rope 2 is connected to the second bolt 3. The upper end of the steel structure column 1 is provided with a column holding device, and the upper end of the steel wire rope 2 is connected to the column holding device. The column holding device includes two U-shaped plates 12 that are butt-jointed with each other, and the two U-shaped plates 12 are connected to each other by a third bolt 15. A rubber sheet 13 is installed inside each U-shaped plate 12, and the rubber sheet is preferably a rubber sheet with a steel bottom and a rough surface. Each U-shaped plate 12 is threadedly connected with a fourth bolt 14, and the fourth bolt 14 is hinged to the rubber sheet 13 after penetrating the U-shaped plate 12 inwardly. The fourth bolt 14 is used to adjust the pressure of the contact surface between the rubber sheet 13 and the steel structure column 1, so that the column holding device and the steel structure column 1 are firmly fixed. The column holding device is arranged at the upper end of the steel structure column 1, and is provided with fastening bolts and pull rings; the long ring at the upper end of the precast concrete reinforcing rib 9 and the pull ring of the column holding device are connected with the wire rope 2 and the basket bolts to realize the suspension of the foundation concrete tension beam.

[0032] The present invention also discloses a construction method for integrated suspension of concrete tension beams on a steel structure foundation without disassembly using the above device, comprising the following steps: Step 1: Before construction, prefabricate the left slab unit, bottom slab unit, right slab unit and corresponding prefabricated concrete reinforcement ribs in a standardized component processing plant according to the structural dimensions of the foundation concrete tension beam in the design drawings; Step 2: Weld the support frame at the corresponding position at the bottom of the foundation concrete tension beam on the steel structure column.

[0033] Step 3: Install the column holding device above the steel structure column, and connect the basket bolt and one end of the wire rope to the column holding device. Roughly adjust the length of the wire rope to roughly meet the distance from the column holding device to the hanging point of the precast concrete component of the foundation concrete tension beam.

[0034] Step 4: Assemble and combine the precast concrete panel units and the corresponding precast concrete reinforcement ribs on the ground, and fix the second bolts at the corresponding hanging point positions of the precast concrete reinforcement ribs.

[0035] Step 5: Use a lifting machine to lift the assembled precast concrete component of the foundation tension beam and place it on the support frame of the steel structure column. Connect the other end of the steel wire rope to the second bolt on the precast concrete reinforcement rib, and adjust the basket bolt to make the bottom elevation of the precast concrete component meet the requirements.

[0036] Step 6: Install the foundation tie beam reinforcement in the precast concrete component of the foundation tie beam, or hoist the foundation tie beam reinforcement tied on the ground into the precast concrete component, and connect the foundation tie beam reinforcement with the steel structure column.

[0037] Step 7: Reinforce the precast concrete components, perform hidden steel bar inspection, and pour foundation tension beam concrete.

[0038] Step 8: Backfill the foundation pit to the top elevation of the foundation tension beam, and remove the second bolt, basket bolt, wire rope, and column holding device.

[0039] The above description is only the preferred implementation of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steel structure foundation concrete tension beam integrated suspension non-disassembly device, characterized in that: The invention comprises a precast concrete component (4), wherein the precast concrete component (4) is a shell structure with an upper opening, wherein the upper end of the precast concrete component (4) is connected to a steel wire rope (2), and the other end of the steel wire rope (2) is connected to steel structure columns (1) at both ends of the precast concrete component (4); the precast concrete component (4) serves as a foundation tension beam template, and concrete is poured inside; the precast concrete component (4) and the post-poured concrete serve as a foundation tension beam as a whole.

2. The steel structure foundation concrete tension beam integrated suspension non-disassembly device according to claim 1 is characterized in that: The precast concrete component (4) comprises a plurality of precast concrete slab units, and precast concrete reinforcing ribs (9) are connected between adjacent precast concrete slab units.

3. The steel structure foundation concrete tension beam integrated suspension non-disassembly device according to claim 2 is characterized in that: The precast concrete slab unit comprises a left slab unit (5), a bottom slab unit (6) and a right slab unit (11) which are connected in sequence, the three slab units forming a U-shaped structure, the left slab unit (5) and the right slab unit (6) being connected via upper and lower first bolts (7), and the bottom slab unit (6) being mounted above the lower first bolts (7).

4. The steel structure foundation concrete tension beam integrated suspension non-disassembly device according to claim 3 is characterized in that: The precast concrete reinforcing ribs (9) for connecting the left side plate unit (5) and the precast concrete reinforcing ribs (9) for connecting the right side plate unit (11) are symmetrically arranged with respect to the bottom plate unit (6), and the precast concrete reinforcing ribs (9) for connecting the left and right side plate units and the precast concrete reinforcing ribs (9) for connecting the bottom plate unit (6) are arranged alternately.

5. The steel structure foundation concrete tension beam integrated suspension non-disassembly device according to claim 3 is characterized in that: The cross-sectional shape of the left and right side plate units is a convex shape, and the wing plates on the left and right sides of the convex shape are inserted into the grooves of the precast concrete reinforcing ribs (9).

6. The steel structure foundation concrete tension beam integrated suspension non-disassembly device according to claim 5, characterized in that: The cross-sectional shape of the precast concrete reinforcing rib (9) is an I-shaped rib, and grooves are provided on both the left and right sides thereof, and the wing plates of the precast concrete panel unit are inserted into the grooves.

7. The steel structure foundation concrete tension beam integrated suspension non-disassembly device according to claim 3 is characterized in that: The upper ends of the precast concrete reinforcing ribs (9) used to connect the left side plate unit (5) and the upper ends of the precast concrete reinforcing ribs (9) used to connect the right side plate unit (11) are both detachably connected with second bolts (3), and the lower ends of the steel wire ropes (2) are connected to the second bolts (3).

8. The steel structure foundation concrete tension beam integrated suspension non-disassembly device according to claim 3 is characterized in that: The upper end of the steel structure column (1) is provided with a column holding device, and the upper end of the steel wire rope (2) is connected to the column holding device.

9. The steel structure foundation concrete tension beam integrated suspension non-disassembly device according to claim 8, characterized in that: The column holding device comprises two U-shaped plates (12) butted against each other, a rubber plate (13) being installed inside each U-shaped plate (12), and a fourth bolt (14) being threadedly connected to each U-shaped plate (12), the fourth bolt (14) penetrating inwardly through the U-shaped plate (12) and then being hingedly connected to the rubber plate (13).

10. A construction method for steel structure foundation concrete tie beam integrated suspension non-disassembly using the steel structure foundation concrete tie beam integrated suspension non-disassembly device according to claim 9, comprising the following steps: Step 1: Before construction, prefabricate the left slab unit (5), the bottom slab unit (6), the right slab unit (11) and the corresponding prefabricated concrete reinforcing ribs (9) in a standardized component processing plant according to the structural dimensions of the foundation concrete tension beam in the design drawings; Step 2, welding a support frame (10) at a corresponding position at the bottom of the foundation concrete tension beam on the steel structure column (1); Step 3: Install a column holding device above the steel structure column (1), connect the turnbuckle bolt and one end of the steel wire rope (2) to the column holding device, and roughly adjust the length of the steel wire rope to meet the distance between the column holding device and the hanging point of the precast concrete component (4); Step 4: Assemble and combine the precast concrete panel units and the corresponding precast concrete reinforcing ribs (9) on the ground, and fix the second bolts (3) at the corresponding hanging point positions of the precast concrete reinforcing ribs (9); Step 5: Use a lifting machine to lift the assembled precast concrete component (4) and place it on the support frame (10) of the steel structure column (1), and connect the other end of the steel wire rope (2) to the second bolt (3); Step 6: Install the foundation tie beam reinforcement in the precast concrete component, or hoist the foundation tie beam reinforcement that has been tied on the ground into the precast concrete component (4), and connect the foundation tie beam reinforcement to the steel structure column; Step 7: Strengthen the precast concrete components, conduct hidden steel bar inspection and pour foundation tension beam concrete; Step 8: Backfill the foundation pit to the top elevation of the foundation tension beam, and remove the second bolt, basket bolt, wire rope, and column holding device.

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