Construction method of articulated irregular steel frame railway station steel roof truss

Abstract

This invention relates to a construction method for a hinged irregular-shaped steel frame railway station steel roof truss, comprising the following steps: constructing concrete columns; constructing anchor columns, with the top of the pre-embedded end connected to the hinged end two; connecting the bottom end of the steel frame column to the hinged end two of the anchor column; installing temporary cantilever bracing; and using support rods to temporarily support the cantilever steel frame. The beneficial effects of this invention are: the steel frame column and anchor column are hinged, changing the connection from a traditional fixed connection to a semi-flexible connection, reducing the risk of brittle failure at the connection point; hinged ends are set on both the steel frame column and the anchor column, making the hinged connection operation more convenient; the support trolley temporarily stabilizes the steel frame column, preventing lateral displacement and deviation, ensuring the reliability of the steel frame column connection, and the support trolley is movable, facilitating flexible positioning.

Description

Technical Field

[0001] This invention belongs to the field of railway station building steel roof truss construction technology, and particularly relates to a method for constructing a hinged irregular-shaped steel frame railway station building steel roof truss. Background Technology

[0002] The construction of steel truss roofs involves issues such as hoisting and installing the truss structure, anchoring the truss to the supporting columns, installing the cantilever sections of the truss, and temporary stabilization during installation. Further improvements to the construction methods for steel roof trusses are needed to enhance the safety, efficiency, and accuracy of the construction. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a construction method for a hinged irregular steel frame railway station steel roof truss.

[0004] The construction method for this type of articulated irregular steel frame railway station steel roof truss includes the following steps:

[0005] Step 1: Construct several rows of concrete columns to support the steel frame;

[0006] Step 2: Construct anchor columns and set embedded ends at the top of the anchor columns. Cast the anchor columns and connect the top of the embedded ends to hinged ends 2.

[0007] Step 3: Hoist the steel frame, install the secondary beams, temporarily support the steel frame columns using the support trolley, and connect the bottom end of the steel frame column to the hinged end of the anchor column.

[0008] Step 4: Install temporary cantilever bracing on a row of concrete columns at the cantilever steel frame construction location;

[0009] Step 5: Install several support rods on the top surface of the temporary cantilever support. Use the support rods to temporarily support the cantilever steel frame. After fixing the cantilever steel frame and the steel frame together, remove the temporary cantilever support.

[0010] Preferably, in step two, the embedded end is embedded in the anchor column. The embedded end includes an embedded plate at the top of the anchor column. The lower part of the embedded plate is connected to a steel pipe, a longitudinal steel plate, and a transverse steel plate. The longitudinal steel plate and the transverse steel plate are arranged perpendicularly and inserted between the steel pipe.

[0011] As a preferred option, in step three, during the construction of the connection between the steel frame column and the anchor column, a support trolley is used to temporarily fix the bottom of the steel frame column. The support trolley includes: a support base plate for installing the struts, with wheels at the bottom of the support base plate; the struts include main struts, secondary struts and cross struts; the bottom end of the main strut is fixed to the support base plate; and a fixing frame is installed at the top of the main strut, which is then clamped onto the steel frame column.

[0012] Preferably, in step three, a side connecting rod is installed on the side of the support base plate, and a stabilizing frame is provided at one end of the side connecting rod, with the stabilizing frame clamping the bottom of the anchor column.

[0013] Preferably, in step three, the two ends of the horizontal connecting rod are connected to the main support rod and the anchor column respectively, and the two ends of the secondary support rod are connected to the main support rod and the base plate of the support respectively.

[0014] As a preferred option, in step three, the bottom of the steel frame column is temporarily supported by a support trolley, and the support trolley is moved to the side of the steel frame column to be stabilized by the traveling wheels.

[0015] Preferably, in step three, the steel frame column and the anchor column are connected by a hinged end. The bottom of the steel frame column is connected to a connecting plate, and the bottom end of the connecting plate is connected to a hinged end one. Both hinged end one and hinged end two have matching through holes. Hinged end one and hinged end two are interlocked, and a pin is inserted between the through holes to realize the connection between the steel frame column and the anchor column.

[0016] As a preferred embodiment, in step four, the temporary cantilever bracing includes: a bottom frame, a middle frame, and a top frame clamped onto the concrete column; vertical reinforcing rods are inserted between the bottom frame, the middle frame, and the top frame; a support frame is clamped onto the concrete column between the top frame and the middle frame; the support frame extends horizontally; and diagonal bracing connects the support frame to the bottom frame; the support frame includes longitudinal ribs, outer transverse ribs, inner transverse ribs, and diagonal ribs.

[0017] The articulated irregular steel frame railway station building steel roof truss is obtained by any of the methods described above.

[0018] The beneficial effects of this invention are:

[0019] 1) The present invention uses a hinged connection between the steel frame column and the anchor column, which changes the connection between the two from a traditional fixed connection to a semi-flexible connection, thereby reducing the risk of brittle failure at the connection.

[0020] 2) The present invention provides hinged ends on the steel frame column and the anchor column respectively, making the hinged connection operation more convenient.

[0021] 3) This invention utilizes a support trolley to temporarily stabilize the steel frame column, preventing lateral displacement or deviation of the steel frame column, ensuring the connection reliability of the steel frame column, and the support trolley is movable, facilitating flexible positioning.

[0022] 4) This invention utilizes temporary cantilever supports to construct cantilever steel frames. The temporary cantilever supports serve as temporary load-bearing platforms for the cantilever steel frames, ensuring the temporary stability of the cantilever steel frames and the safety of the installation process. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the articulated irregular steel frame railway station steel roof truss structure of the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of node A in the middle;

[0025] Figure 3 for Figure 1 Schematic diagram of node B in the middle;

[0026] Figure 4 This is a schematic diagram of the pre-embedded end structure of the articulated irregular steel frame railway station steel roof truss of the present invention;

[0027] Figure 5 for Figure 4 Schematic diagram of node C in the middle;

[0028] Figure 6 This is a schematic diagram illustrating the construction status of the articulated irregular steel frame railway station steel roof truss of the present invention;

[0029] Figure 7 for Figure 6 Schematic diagram of node D in the middle;

[0030] Figure 8 for Figure 6 Schematic diagram of node E in the middle.

[0031] Explanation of reference numerals in the attached drawings: 1. Steel frame; 2. Steel frame column; 3. Cantilever steel frame; 4. Concrete column; 5. Secondary beam; 6. Support point; 7. Hinge end; 8. Anchor column; 9. Connecting plate; 10. Embedded plate; 11. Hinge end one; 12. Hinge end two; 13. Pin; 14. Embedded end; 15. Steel pipe; 16. Embedded plate; 17. Longitudinal steel plate; 18. Transverse steel plate; 19. Support trolley; 2 0. Traveling wheel; 21. Support base plate; 22. Stabilizing frame; 23. Horizontal connecting rod; 24. Fixed frame; 25. Main support rod; 26. Secondary support rod; 27. Side connecting rod; 28. Temporary cantilever brace; 29. ​​Bottom frame; 30. Middle frame; 31. Top frame; 32. Diagonal brace; 33. Longitudinal rib; 34. Support frame; 35. Outer transverse rib; 36. Inner transverse rib; 37. Diagonal rib; 38. Support rod; 39. Vertical support rod. Detailed Implementation

[0032] The present invention will be further described below with reference to embodiments. The description of the embodiments below is only for the purpose of helping to understand the present invention. It should be noted that those skilled in the art can make several modifications to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0033] Example 1

[0034] As one embodiment, this method for constructing the steel roof truss of a hinged irregular-shaped steel frame railway station building includes the following steps:

[0035] Step 1: Constructing Concrete Column 4

[0036] Concrete columns 4, which will support the steel frame 1, will be constructed at the designated locations.

[0037] Step 2: Construct anchor columns 8

[0038] S21. Construct anchor columns 8 and set pre-embedded ends 14 at the top of anchor columns 8; the pre-embedded ends 14 are embedded in anchor columns 8 and include pre-embedded plates at the top of anchor columns 8. The lower part of the pre-embedded plates is connected to steel pipes 15, longitudinal steel plates 17 and transverse steel plates 18. The longitudinal steel plates 17 and transverse steel plates 18 are arranged perpendicularly and inserted between steel pipes 15.

[0039] S22, Cast anchor columns 8.

[0040] S23, Pre-embedded end 14 top connection hinge end 2 12

[0041] Connect hinge end 2 12 via embedded plate.

[0042] Step 3: Install the steel frame 1

[0043] S31, Precast steel frame 1

[0044] S32, Steel Frame 1 hoisted into place

[0045] S33, Install secondary beam 5

[0046] S34. The steel frame column 2 is supported by the support trolley 19. During the connection construction between the steel frame column 2 and the anchor column 8, the bottom of the steel frame column 2 is temporarily fixed by the support trolley 19. The support trolley 19 includes: a support base plate 21 for installing the support rods, the bottom of the support base plate 21 has traveling wheels 20 for moving the support trolley 19, and the support rods include main support rods 25, secondary support rods 26, and cross connecting rods 23. The bottom end of the main support rod 25 is fixed to the support base plate 21, and a fixing frame 24 is installed at the top end of the main support rod 25, which is then clamped to the steel frame column 2. Side connecting rods 27 are installed on the side of the support base plate 21, and a stabilizing frame 22 is connected to the side connecting rods 27, which is then clamped to the bottom of the anchor column 8. A fixing frame 24 is installed at the top of the main support rod 25. The two ends of the horizontal connecting rod 23 are connected to the main support rod 25 and the anchor column 8, respectively. The two ends of the secondary support rod 26 are connected to the main support rod 25 and the support base plate 21, respectively. The two ends of the horizontal connecting rod 23 are connected to the main support rod 25 and the frame column, respectively. The bottom of the steel frame column 2 is temporarily supported and stabilized by the support trolley 19. The support trolley 19 is moved to the side of the steel frame column 2 to be stabilized by the traveling wheels 20.

[0047] S35. Connect the steel frame column 2 and the anchor column 8; connect the steel frame column 2 and the anchor column 8 using the hinge end 7. The bottom of the steel frame column 2 is connected to the connecting plate 9. The connecting plate 9 is connected to the hinge end 11. Both the hinge end 11 and the hinge end 2 12 have matching through holes. The hinge end 11 and the hinge end 2 12 are interlocked and connected by a pin 13 through the through holes to realize the connection between the steel frame column 2 and the anchor column 8.

[0048] Example 2

[0049] As another embodiment, this second embodiment, based on the first embodiment, proposes a more specific construction method for the steel roof truss of a hinged irregular steel frame railway station building. Step three is followed by steps four and five, specifically:

[0050] Step 4: Install temporary cantilever bracing

[0051] Temporary cantilever bracing is installed on the adjacent concrete column 4 of the cantilever steel frame 3 to be constructed. The temporary cantilever bracing includes: a bottom frame 29, a middle frame 30, and a top frame 31 clamped to the concrete column 4; vertical stiffeners 39 connecting the bottom frame 29, the middle frame 30, and the top frame 31 to the concrete column 4; a support frame 34 clamped to the concrete column 4 between the top frame 31 and the middle frame 30; and diagonal bracing 32 connecting the support frame 34 and the bottom frame 29; the support frame 34 includes longitudinal ribs 33, outer transverse ribs 35, inner transverse ribs 36, and diagonal ribs 37.

[0052] Step 5: Install the cantilever steel frame 3

[0053] Several support rods 38 are installed on the top surface of the support frame 34, and the cantilever steel frame 3 is temporarily supported on the support rods 38. After the cantilever steel frame 3 and the steel frame 1 are fixedly connected, the temporary cantilever support is removed.

[0054] It should be noted that the parts in this embodiment that are the same as or similar to those in Embodiment 1 can be referred to each other, and will not be repeated in this application.

[0055] Example 3

[0056] As another embodiment, this third embodiment is proposed based on embodiments one and two. This type of hinged irregular steel frame railway station steel roof truss, such as... Figures 1 to 8 As shown, it includes a steel frame 1, a cantilever steel frame 3, a concrete column 4 and an anchor column 8. A number of steel frame columns 2 are provided at one end of the steel frame 1. The bottom end of the steel frame column 2 is hinged to the top end of the anchor column 8. A cantilever steel frame 3 is constructed at the other end of the steel frame 1. The concrete column 4 is supported under the steel frame 1 and the cantilever steel frame 3.

[0057] like Figure 4 and Figure 5As shown, the anchor column 8 has a pre-embedded end 14, which includes a pre-embedded plate at the top of the anchor column 8. The lower part of the pre-embedded plate is connected to a steel pipe 15, a longitudinal steel plate 17 and a transverse steel plate 18. The longitudinal steel plate 17 and the transverse steel plate 18 are arranged perpendicularly and are inserted between the steel pipe 15.

[0058] like Figure 3 As shown, the steel frame column 2 and the anchor column 8 are connected by the hinge end 7. The bottom of the steel frame column 2 is connected to the connecting plate 9. The bottom end of the connecting plate 9 is connected to the hinge end 11. Both the hinge end 11 and the hinge end 2 12 are provided with matching through holes. The hinge end 11 and the hinge end 2 12 are interlocked and inserted, and a pin 13 is inserted between the through holes.

[0059] A support trolley 19 is fixed next to the anchor column 8 for temporary support of the steel frame column 2; a temporary cantilever brace is installed on the concrete column 4 below the cantilever steel frame 3 for temporary support of the cantilever steel frame 3.

[0060] like Figure 1 and Figure 2 As shown, the steel frame 1 also includes secondary beams 5, which are positioned corresponding to the concrete columns 4. One end of the cantilever steel frame 3 is fixed to the secondary beams 5, and the cantilever steel frame 3 also has secondary beams 5 corresponding to the concrete columns 4. The top of the concrete column 4 is provided with a support point 6 to support the bottom of the concrete column 4.

[0061] Example 4

[0062] As another embodiment, this fourth embodiment is proposed based on the third embodiment. This type of hinged irregular steel frame railway station steel roof truss, such as... Figure 6 and Figure 7 As shown, the support trolley 19 includes: a support base plate 21 for mounting the support rods, with wheels 20 at the bottom of the support base plate 21; the support rods include a main support rod 25, a secondary support rod 26, and a cross link 23; the bottom end of the main support rod 25 is fixed to the support base plate 21, and a fixing frame 24 is installed at the top end of the main support rod 25; the fixing frame 24 is clamped to the steel frame column 2; the two ends of the cross link 23 are respectively connected to the main support rod 25 and the anchor column 8; and the two ends of the secondary support rod 26 are respectively connected to the main support rod 25 and the support base plate 21.

[0063] A side connecting rod 27 is installed on the side of the bracket base plate 21. One end of the side connecting rod 27 is provided with a stabilizing frame 22, which is clamped to the bottom of the anchor column 8.

[0064] like Figure 8As shown, the temporary cantilever bracing includes: a bottom frame 29, a middle frame 30, and a top frame 31 clamped to the concrete column 4; vertical support rods 39 are inserted between the bottom frame 29, the middle frame 30, and the top frame 31; a support frame 34 is clamped on the concrete column 4 between the top frame 31 and the middle frame 30; the support frame 34 extends horizontally; and a diagonal brace 32 connects the support frame 34 and the bottom frame 29; the support frame 34 includes longitudinal ribs 33, outer transverse ribs 35, inner transverse ribs 36, and diagonal ribs 37; and several support rods 38 are provided on the top surface of the support frame 34, which are supported below the cantilever steel frame 3.

[0065] It should be noted that the parts in this embodiment that are the same as or similar to those in Embodiment 3 can be referred to each other, and will not be repeated in this application.

[0066] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

Claims

1. A construction method for a hinged, irregularly shaped steel frame railway station steel roof truss, characterized in that, Includes the following steps: Step 1: Construct several rows of concrete columns to support the steel frame; Step 2: Construct anchor columns and set embedded ends at the top of the anchor columns. Cast the anchor columns and connect the top of the embedded ends to hinged ends 2. Step 3: Hoist the steel frame, install the secondary beams, and temporarily support the steel frame columns using a support trolley. Connect the bottom of the steel frame columns to the hinged ends of the anchor columns. During the connection construction between the steel frame columns and the anchor columns, the support trolley is used to temporarily fix the bottom of the steel frame columns. The support trolley includes: a support base plate for installing the struts, with wheels at the bottom; the struts include main struts, secondary struts, and cross struts; the bottom of the main struts is fixed to the support base plate, and a fixing frame is installed at the top of the main struts, which is then clamped onto the steel frame columns; side struts are installed on the sides of the support base plate, with a stabilizing frame at one end, which is clamped onto the bottom of the anchor columns; the two ends of the cross struts are connected to the main struts and the anchor columns respectively, and the two ends of the secondary struts are connected to the main struts and the support base plate respectively. Step 4: Install temporary cantilever bracing on a row of concrete columns at the cantilever steel frame construction location; the temporary cantilever bracing includes: a bottom frame, a middle frame, and a top frame clamped to the concrete columns, with vertical support rods passing through the bottom frame, middle frame, and top frame; a support frame clamped to the concrete column between the top frame and the middle frame; the support frame extends horizontally; and diagonal bracing connects the support frame to the bottom frame; the support frame includes longitudinal ribs, outer transverse ribs, inner transverse ribs, and diagonal ribs; Step 5: Install several support rods on the top surface of the temporary cantilever support. Use the support rods to temporarily support the cantilever steel frame. After fixing the cantilever steel frame and the steel frame together, remove the temporary cantilever support.

2. The construction method for the articulated irregular steel frame railway station steel roof truss according to claim 1, characterized in that, In step two, the embedded end is embedded in the anchor column. The embedded end includes an embedded plate at the top of the anchor column. The lower part of the embedded plate is connected to a steel pipe, a longitudinal steel plate and a transverse steel plate. The longitudinal steel plate and the transverse steel plate are arranged perpendicularly and inserted between the steel pipe.

3. The construction method for the articulated irregular-shaped steel frame railway station steel roof truss according to claim 1, characterized in that, In step three, the bottom of the steel frame column is temporarily supported by the support trolley, and the support trolley is moved to the side of the steel frame column to be stabilized by the traveling wheels.

4. The construction method for the articulated irregular-shaped steel frame railway station steel roof truss according to claim 1, characterized in that, In step three, the steel frame column and the anchor column are connected by hinged ends. A connecting plate is connected to the bottom of the steel frame column, and a hinged end one is connected to the bottom of the connecting plate. Both hinged end one and hinged end two have matching through holes. Hinged end one and hinged end two are interlocked, and a pin is inserted between the through holes to realize the connection between the steel frame column and the anchor column.

5. A hinged, irregularly shaped steel frame for railway station roof trusses, characterized in that: Obtained by the method described in any one of claims 1 to 4.

Images