Temporary supporting system for lifting column on beam and construction method

Abstract

The invention discloses an on-beam column lifting temporary supporting system and a construction method, and the temporary supporting system comprises a transfer beam anchored on a structural floor slab; the jig frame is detachably connected to the transfer beam; the connecting beam is detachably connected to the jig frame; the distribution beams are detachably connected to the connecting beams, the distribution beams extend out of the two sides of the connecting beams, and the distribution beams are perpendicular to steel beams of the steel structure beam columns; the supporting profile steel is welded on the distribution beam and the lower end face of the steel column of the steel structure beam column; and the two inclined supports are symmetrically and obliquely welded on the distribution beam and the steel column of the steel structure beam column on the side where the inclined supports are located. The perpendicularity and stability of the steel column of the steel structure beam column can be effectively controlled, and the construction quality of column lifting on the beam can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, and in particular to a temporary support system for raising columns on beams and a construction method. Background Art

[0002] In the steel structure construction of high-rise buildings, the installation of the columns on the beams is a complex and critical link. Its construction process is: construct the steel structure beams and columns in a suspended state on the structural floor through a temporary support system, and then pour concrete in the steel beam and part of the steel column area of ​​the steel structure beams and columns to form a steel-concrete beam to the building structure, and use the steel-concrete beam connected to the building structure to support the steel column above it, and then remove the temporary support system. Its disadvantage is that the temporary support system of the prior art is a steel pipe or a disc-type scaffolding supported between the template at the lower end of the suspended steel structure beam and column and the structural floor, which is difficult to ensure the verticality and stability of the steel structure beams and columns in a suspended state. Especially in the construction process of pouring concrete in the steel beam and part of the steel column area of ​​the steel structure beam and column to form a steel-concrete beam, the steel column is easily offset or sunken by the concrete pouring construction of the steel-concrete beam, affecting the construction quality of the column structure on the beam. Summary of the invention

[0003] The purpose of the present invention is to provide a temporary support system and construction method for raising columns on beams, so as to solve the problem that steel pipes or disc-type scaffolding are difficult to maintain the verticality and stability of steel structure beams and columns when used as temporary support system and construction method for raising columns on beams, and the beam-column structure may be offset or sunk when pouring concrete on the steel beams, thus affecting the quality of the construction of the columns on beams.

[0004] In order to solve the above technical problems, the present invention provides a technical solution: a temporary support system for raising columns on beams, comprising:

[0005] transfer beams, anchored to the structural slab;

[0006] A tire frame, detachably connected to the transfer beam;

[0007] A connecting beam, detachably connected to the tire frame;

[0008] A distribution beam is detachably connected to the connection beam, the distribution beam extends from both sides of the connection beam, and the distribution beam and the steel beam of the steel structure beam column are vertically distributed to each other;

[0009] Supporting steel, welded and arranged on the lower end surface of the steel column of the distribution beam and the steel structure beam column;

[0010] The inclined supports are two in number, which are symmetrically inclined and welded on the steel columns of the distribution beam and the steel structure beam column on the same side.

[0011] Furthermore, in the temporary support system for raising columns on beams provided by the present invention, the tire frame is composed of at least one standard section.

[0012] Furthermore, in the temporary support system for raising columns on beams provided by the present invention, the detachable connection is a bolt connection.

[0013] Furthermore, in the temporary support system for raising columns on beams provided by the present invention, the axis center line of the distribution beam and the axis center line of the steel column of the steel structure beam column are arranged perpendicular to each other.

[0014] Furthermore, in the temporary support system for raising columns on beams provided by the present invention, the distribution beam is an I-beam.

[0015] Furthermore, the present invention provides a temporary support system for raising columns on beams, wherein the conversion beam comprises four columns distributed in a rectangular shape and a cross beam connected between two adjacent columns, a seat plate is vertically provided at the lower end of each column, and the conversion beam is anchored to the structural floor slab by passing through the bottom plate through anchor bolts.

[0016] Furthermore, in the temporary support system for raising columns on beams provided by the present invention, the oblique supports are steel pipes or H-shaped steels.

[0017] In order to solve the above technical problems, another technical solution provided by the present invention is: a construction method for raising columns on beams, using the above temporary support system for raising columns on beams, comprising:

[0018] Conduct on-site measurement and layout on the structural floor to determine the installation positions of the steel structure beams and columns;

[0019] Anchor the transfer beam at the installation position determined on the structural floor;

[0020] A tire frame is detachably connected to the conversion beam;

[0021] A connecting beam is detachably mounted on the tire frame;

[0022] The distribution beam is detachably connected to the connection beam, and the distribution beam is extended out of both sides of the connection beam so that the distribution beam and the steel beam of the steel structure beam column are vertically distributed to each other;

[0023] Welding a plurality of evenly distributed supporting steel sections on the distribution beam;

[0024] Hoisting the steel structure beams and columns to the top of the supporting steel sections, and welding the steel columns of the steel structure beams and columns to the supporting steel sections;

[0025] Welding two oblique supports obliquely between the two ends of the distribution beam and the steel column of the steel structure beam column, so that the two oblique supports are symmetrically distributed with the steel column of the steel structure beam column as the center;

[0026] Rebar binding, formwork installation, concrete pouring and vibration are performed in the area to be poured for the steel structure beams and columns to form steel-concrete beams that wrap the steel beams and part of the steel columns and steel columns in a suspended state on the building structure;

[0027] After the concrete reaches the designed strength, the temporary support system of the columns on the beam is removed.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] The temporary support system and construction method for raising columns on beams provided by the present invention bear vertical loads on steel structure beams and columns by forming a vertical support structure composed of a conversion beam, a tire frame, a connecting beam, a distribution beam and supporting steel sections which are sequentially connected upward on the structural floor slab, and balance the tension and stress on the steel structure beams and columns by forming a diagonal support structure through two inclined supports symmetrically and obliquely welded on the distribution beam and the steel columns of the steel structure beams and columns, thereby effectively controlling the verticality of the steel columns of the steel structure beams and columns and preventing the steel structure beams and columns from tilting or shifting in the direction of the steel beams after being supported by the vertical support structure, thereby ensuring the force balance of the steel structure beams and columns and improving the overall stability of the steel structure beams and columns.

[0030] The temporary support system and construction method for raising columns on beams provided by the present invention, during the construction process of pouring concrete in the steel beam and part of the steel column area of ​​the steel structure beam and column through steel bar binding and the erection of a formwork system to form a steel-concrete beam, the gravity exerted by the concrete on the steel beam is diagonally pulled by the vertically distributed distribution beam and the diagonal support, thereby ensuring the force balance of the steel structure beam and column during the process of pouring concrete to form the steel-concrete beam, reducing the position deviation caused by the disturbance of the steel structure beam and column during the concrete pouring process, reducing or even avoiding the problem of displacement or sinking of the steel structure beam and column, and after the concrete curing reaches the design strength, the temporary support system is dismantled, thereby improving the construction quality of the raising columns on beams. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the main structure of the temporary support system for the columns on the beams;

[0032] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of the temporary support system for the columns on the beam at the middle BB;

[0033] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle;

[0034] Figure 4 yes Figure 1 Schematic diagram of the cross-section structure at CC in the middle;

[0035] As shown in the figure:

[0036] 100. Temporary support system for columns on beams;

[0037] 110, transfer beam, 111, seat plate, 112, column, 113, cross beam, 114, anchor bolt;

[0038] 120, tire frame;

[0039] 130. Connecting beam;

[0040] 140. Distribution beam;

[0041] 150. Support steel;

[0042] 160, oblique support;

[0043] 200, steel structure beams and columns, 210, steel columns, 220, steel beams;

[0044] 300. Structural floor. DETAILED DESCRIPTION

[0045] The present invention is described in detail below in conjunction with the accompanying drawings: The advantages and features of the present invention will become more apparent from the following description. It should be noted that the accompanying drawings are in very simplified form and in non-precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0046] Please refer to Figures 1 to 4 The embodiment of the present invention provides a temporary support system 100 for raising columns on beams, comprising a conversion beam 110, a tire frame 120, a connecting beam 130, a distribution beam 140, a supporting steel 150 and an inclined support 160, wherein:

[0047] The conversion beam 110 is anchored on the structural floor 300. In order to improve the stable support effect of the conversion beam 110, the conversion beam 110 includes four columns 112 distributed in a rectangular shape and a crossbeam 113 connected between two adjacent columns 112. A seat plate 111 is vertically arranged at the lower end of each column 112. The conversion beam 110 is anchored on the structural floor 300 through an anchor bolt 114 passing through the bottom plate. The anchor bolt 114 can be a chemical expansion bolt, etc. The columns 112 in the conversion beam 110 can be adapted to different heights as needed.

[0048] The tire frame 120 is detachably connected to the transfer beam 110. The tire frame 120 may be composed of at least one standard section. When the tire frame 120 is composed of two or more standard sections, adjacent standard sections are also detachably connected by high-strength bolts.

[0049] The connecting beam 130 is detachably connected to the tire frame 120. The connecting beam 130 can be a square frame structure composed of four horizontal beams to achieve reliable connection with the tire frame 120.

[0050] The distribution beam 140 is detachably connected to the connection beam 130. The distribution beam 140 extends from both sides of the connection beam 130. The distribution beam 140 and the steel beam 220 of the steel structure beam column 200 are perpendicular to each other. In order to facilitate disassembly and recycling, high-strength bolts can be used to detachably connect the upper and lower adjacent components. In order to improve the structural strength of the distribution beam 140, the distribution beam 140 can be an I-beam.

[0051] The support steel 150 is welded on the lower end surface of the steel column 210 of the distribution beam 140 and the steel structure beam column 200. Welding can improve the reliability of the connection between the distribution beam 140 and the steel column 210, and avoid the problem that the bolts are easily loosened and affect the verticality of the steel column 210. When dismantling later, it is removed by cutting. The height of the support steel 150 can also be adjusted according to the height clearance requirements to improve the reliability of its connection.

[0052] The inclined supports 160 are two, symmetrically inclined and welded on the distribution beam 140 and the steel column 210 of the steel structure beam column 200 on the side. The inclined supports can be steel pipes or H-shaped steels.

[0053] Please refer to Figure 1 to Figure 2 The embodiment of the present invention further provides a method for constructing a column on a beam, using the above-mentioned temporary support system 100 for constructing a column on a beam, comprising:

[0054] Step 401 , conduct on-site measurement and layout on the structural floor 300 to determine the installation position of the steel structure beam column 200 .

[0055] Step 402 : anchoring the transfer beam 110 at a determined installation position on the structural floor 300 .

[0056] Step 403 , detachably connect the tire frame 120 to the conversion beam 110 .

[0057] Step 404 , detachably mounting the connecting beam 130 on the tire frame 120 .

[0058] Step 405 , the distribution beam 140 is detachably connected to the connection beam 130 , and the distribution beam 140 is extended out of both sides of the connection beam 130 , so that the distribution beam 140 and the steel beam 220 of the steel structure beam column 200 are arranged perpendicular to each other.

[0059] Step 406 , welding a plurality of evenly distributed supporting steel sections 150 on the distribution beam 140 .

[0060] Step 407 , hoisting the steel structure beam column 200 to the top of the supporting steel 150 , and welding the steel column 210 of the steel structure beam column 200 to each of the supporting steel 150 .

[0061] Step 408 , two oblique supports 160 are welded obliquely between the two ends of the distribution beam 140 and the steel column 210 of the steel structure beam column 200 , so that the two oblique supports 160 are symmetrically distributed around the steel column 210 of the steel structure beam column 200 . The oblique supports 160 are welded close to the upper part of the steel column 210 .

[0062] Step 409, in the area to be poured of the steel structure beam column 200, steel reinforcement is tied, formwork is installed, concrete is poured, and vibrated to form a steel-concrete beam that wraps the steel beam 220 and part of the steel column 210, and the steel column 210 is in a suspended state. The formwork is independently set at the lower end of the steel column 210 of the steel structure beam column 200, and does not need to form an integrated erection structure with the temporary support system 100 for raising the column on the beam, which has the effect of facilitating disassembly and adjustment of the installation position, and avoids the problem that the formwork must be installed as a whole following the erection of the temporary support system 100 for raising the column on the beam, which makes the installation and adjustment of the formwork difficult.

[0063] Step 410: after the concrete reaches the designed strength, the temporary support system 100 for raising columns on the beam is removed. The temporary support system 100 for raising columns on the beam can be removed by a hoisting device or a forklift.

[0064] Please refer to Figure 2 In order to ensure force balance, in the temporary support system 100 for raising columns on beams provided by the embodiment of the present invention, the axis line of the distribution beam 140 and the axis line of the steel column 210 of the steel structure beam column 200 are arranged perpendicular to each other. Figure 2 The inclined support 160 is not obtained, and only the axis of the inclined support 160 is illustrated. At this time, the inclined support 160 coincides with the axis of the distribution beam 140, and the distribution beam 140 and the inclined support 160 are both perpendicular to the axis of the steel column 210. The steel column 210 of the steel structure beam column 200 can be a square column.

[0065] The temporary support system and construction method 100 for raising columns on beams provided in the embodiment of the present invention forms a vertical support structure by means of a conversion beam 110, a tire frame 120, a connecting beam 130, a distribution beam 140 and a supporting steel section 150 which are sequentially connected upward on the structural floor 300 to bear vertical loads on the steel structure beam column 200, and forms a diagonal support structure by means of two inclined supports 160 symmetrically and obliquely welded on the distribution beam 140 and the steel column 210 of the steel structure beam column 200 to balance the tension and stress on the steel structure beam column 200, thereby effectively controlling the verticality of the steel column 210 of the steel structure beam column 200, and preventing the steel structure beam column 200 from tilting or shifting in the direction of the steel structure beam 220 after being supported by the vertical support structure, thereby ensuring the force balance of the steel structure beam column 200 and improving the overall stability of the steel structure beam column 200.

[0066] The temporary support system and construction method 100 for raising columns on beams provided by the embodiment of the present invention, during the construction process of pouring concrete in the steel beam 220 and part of the steel column 210 area of ​​the steel structure beam column 200 through steel bar binding and formwork system erection to form a steel-concrete beam, the gravity exerted by the concrete on the steel beam 220 is diagonally pulled by the vertically distributed distribution beam 140 and the diagonal support 160, thereby ensuring the force balance of the steel structure beam column 200 during the process of pouring concrete to form the steel-concrete beam, reducing the position deviation caused by the disturbance of the steel structure beam column 200 during the concrete pouring process, reducing or even avoiding the problem of displacement or sinking of the steel structure beam column 200, and after the concrete curing reaches the design strength, the temporary support system 100 is dismantled, thereby improving the construction quality of raising columns on beams.

[0067] The temporary support system and construction method 100 for raising columns on beams provided in the embodiment of the present invention can remove the temporary support system 100 by uniformly unloading in stages and steps, thereby reducing the secondary disturbance caused to the steel columns 210 that have been constructed and are in a suspended state, and reducing the construction risk. When hoisting the steel structure beam column 200, a four-point hoisting method can be used to improve the stability of the hoisting process.

[0068] The present invention is not limited to the above-mentioned specific implementation modes. Obviously, the above-mentioned embodiments are only some embodiments of the embodiments of the present invention, but not all embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention. Those skilled in the art can make other levels of modifications and changes to the present invention. In this way, if these modifications and changes of the present invention fall within the scope of the claims of the present invention, the present invention is also intended to include these changes and changes.

Claims

1. A temporary support system for columns on beams, characterized in that: include: transfer beams, anchored to the structural slab; A tire frame, detachably connected to the transfer beam; A connecting beam, detachably connected to the tire frame; A distribution beam is detachably connected to the connection beam, the distribution beam extends from both sides of the connection beam, and the distribution beam and the steel beam of the steel structure beam column are vertically distributed to each other; Supporting steel, welded and arranged on the lower end surface of the steel column of the distribution beam and the steel structure beam column; There are two inclined supports, which are symmetrically inclined and welded on the steel columns of the distribution beam and the steel structure beam column on the side.

2. The temporary support system for raising columns on beams according to claim 1 is characterized in that: The tire frame is composed of at least one standard section.

3. The temporary support system for raising columns on beams according to claim 1 is characterized in that: The detachable connection is a bolt connection.

4. The temporary support system for raising columns on beams according to claim 1 is characterized in that: The axis center line of the distribution beam and the axis center line of the steel column of the steel structure beam column are arranged perpendicular to each other.

5. The temporary support system for columns on beams according to claim 1 is characterized in that: The distribution beam is an I-beam.

6. The temporary support system for raising columns on beams according to claim 1 is characterized in that: The conversion beam comprises four columns distributed in a rectangular shape and a cross beam connected between two adjacent columns. A seat plate is vertically arranged at the lower end of each column. The conversion beam is anchored to the structural floor slab by passing through the bottom plate through anchor bolts.

7. The temporary support system for raising columns on beams according to claim 1 is characterized in that: The inclined support is a steel pipe or H-shaped steel.

8. A method for constructing columns on beams, characterized in that: The temporary support system for raising columns on beams according to any one of claims 1 to 7 comprises: Conduct on-site measurement and layout on the structural floor to determine the installation positions of the steel structure beams and columns; Anchor the transfer beam at the installation position determined on the structural floor; A tire frame is detachably connected to the transfer beam; A connecting beam is detachably mounted on the tire frame; The distribution beam is detachably connected to the connection beam, and the distribution beam is extended out of both sides of the connection beam so that the distribution beam and the steel beam of the steel structure beam column are vertically distributed to each other; Welding a plurality of evenly distributed supporting steel sections on the distribution beam; Hoisting the steel structure beams and columns to the top of the supporting steel sections, and welding the steel columns of the steel structure beams and columns to the supporting steel sections; Welding two oblique supports obliquely between the two ends of the distribution beam and the steel column of the steel structure beam column, so that the two oblique supports are symmetrically distributed with the steel column of the steel structure beam column as the center; Rebar binding, formwork installation and concrete pouring are carried out in the area to be poured on the steel structure beams and columns, and vibrating is performed to form steel-concrete beams that wrap part of the steel columns and steel columns in a suspended state on the building structure; After the concrete reaches the designed strength, the temporary support system of the columns on the beam is removed.

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