Raw material stacker-reclaimer rail horizontal load resisting structure and construction method

Abstract

The invention discloses a raw material stacker-reclaimer rail horizontal load resisting structure and a construction method. According to the structure, embedded bolts and anchor bolts are arranged in a rail foundation, a rail base plate is arranged on the surface of a grouting layer and fixed through the embedded bolts, and a rail is erected on the surface of the rail base plate and fixed through a rail pressing device; the force transmission plate is arranged on the surface of the resistance component, the resistance component is arranged between the track foundation and the track base plate, the anchor plates are arranged on the two sides of the resistance component and fastened through anchor bolts, the grouting layer is poured around the resistance component, and the track base plate is located on the surface of the grouting layer. The method comprises the following steps: determining the thickness of a resistance component and a force transmission plate according to process requirements, paying off, positioning and mounting embedded bolts and anchor bolts, pouring a track foundation, mounting the resistance component, the force transmission plate, the anchor plate and a track base plate, pouring a grouting layer, and mounting a track through a track pressing device and the track base plate. According to the structure and the construction method, the vertical load of the track is effectively transmitted, the capability of resisting the horizontal load is achieved, the safety and applicability of the track are improved, and potential safety hazards are eradicated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, and particularly relates to a raw material stacker-reclaimer track horizontal load resisting structure and a construction method. BACKGROUND

[0002] In the installation process of the raw material stacker-reclaimer track in the metallurgical industry, a grouting layer is arranged between the track and the base layer, and the grouting layer bears the load transmitted by the track. The conventional structure is to pour a grouting layer with a thickness of about 60-200 mm of cement-based material between the track and the foundation to form a track support. The support is commonly arranged along the longitudinal length of the track or independently arranged at the rail press position. The specific implementation scheme is to sequentially install the track pad, the rail press after the track foundation is poured (including the pre-buried bolt), pour the grouting layer, and finally install the track. In this structure, the grouting layer can only bear the vertical load transmitted by the track and cannot bear the horizontal load, and therefore is only suitable for track driving with vertical load and without horizontal load, such as a gantry crane. However, for the raw material stacker-reclaimer in the metallurgical industry, the wheels will generate a horizontal load by extruding the track in the production process of stacking, taking and flattening the material. The horizontal load is laterally transmitted to the grouting layer. Since the grouting material itself is a brittle material of cement-based material, the bending strength is only 1 / 5 of the compressive strength, and the resistance to horizontal load and deformation is poor. Under the action of the horizontal load, the grouting layer will be quickly broken, resulting in the loss of effective support of the track and the destruction of the track, and there is a serious safety hazard. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a raw material stacker-reclaimer track horizontal load resisting structure and a construction method. The structure and the construction method not only can effectively transmit the vertical load of the track, but also have the ability to resist the horizontal load, improve the safety and applicability of the raw material stacker-reclaimer track in the metallurgical industry, and eliminate the safety hazard caused by the fragmentation of the grouting layer.

[0004] To solve the above technical problems, the raw material stacker-reclaimer track horizontal load resisting structure of the present application comprises a track, a track foundation, a grouting layer, a rail press, a track pad and a plurality of pre-buried bolts. The plurality of pre-buried bolts are arranged in the track foundation. The track pad is arranged on the surface of the grouting layer and is fixed by the pre-buried bolts. The track is arranged on the surface of the track pad and is fixed by the rail press. The structure further comprises a resisting member, a force transmission plate, an anchor plate and an anchor bolt. The anchor bolt is arranged in the track foundation. The force transmission plate is arranged on the surface of the resisting member. The resisting member is arranged between the track foundation and the track pad. The anchor plate is symmetrically arranged on both sides of the resisting member and is fastened by the anchor bolt. The grouting layer is poured around the resisting member. The track pad is arranged on the surface of the grouting layer.

[0005] Furthermore, the resisting member consists of two channel steels arranged along the entire length of the track, with the two channel steels arranged back to back. The force transmission plate is welded at intervals to the upper flange of the two channel steels, and the anchor plate is symmetrically welded to the lower flange of the two channel steels.

[0006] Furthermore, the track foundation is made of reinforced concrete, and the grouting layer is made of cement-based grouting material and is set along the entire length of the track, with a width of 400mm and a thickness of 100mm.

[0007] Furthermore, the two channel steels are spaced 40mm apart back to back, and the force transmission plate is welded to the upper flange of the two channel steels in the center, so that the two channel steels form a whole.

[0008] A construction method for a horizontal load-resistant structure based on the above-mentioned material stacker-reclaimer track includes the following steps: Step 1: Determine the thickness of the resisting components and force transmission plates based on the required elevation of the track bottom surface and track foundation. Step 2: Lay out and position the track, install the pre-embedded bolts and anchors, evenly distributed along the entire length of the track, and arranged in pairs on both sides of the resistive member. The spacing between the pre-embedded bolts and anchors is 600mm, and the anchors are placed between the two sets of pre-embedded bolts. Step 3: Pour reinforced concrete track foundation, place the resisting component on a flat ground, weld the force transfer plate to the surface of the resisting component, with a spacing of 600mm between the force transfer plates, and evenly distribute them along the resisting component. Step 4: Weld anchor plates symmetrically to both sides of the bottom of the resisting member. The anchor plates are spaced 600mm apart and evenly distributed along the resisting member. The center lines of the anchor plates and the force transmission plates are on the same vertical plane. Step 5: After the track foundation has been cured to the strength required by the design, the resistive components are hoisted between the pre-embedded bolts, and the anchor plates and anchor bolts are fixed with nuts. The resistive components are then installed on the track foundation. Step 6: Place the track pad on the surface of the resistive component, with the position corresponding to the pre-embedded bolts. Pass the bolt holes of the track pad through the pre-embedded bolts and fix them with nuts. Install the rail clamp on the track pad. Step 7: Pour the grouting layer, which is 400mm wide and 100mm thick, and pour it along its entire length. Step 8: After the grouting layer has cured to the strength required by the design, install the rail using a rail clamp and rail pad.

[0009] Furthermore, the elevation of the track foundation is ±0.00m, the elevation of the bottom surface of the track is +0.10m, and the elevation of the track pad is adjusted to +0.10m.

[0010] Due to the raw material stacker track horizontal load resisting structure and construction method of the present application adopts the above technical scheme, that is, the several embedded bolts of the structure are arranged in the track foundation, the track base plate is arranged on the surface of the grouting layer and is fixed through the embedded bolts, the track is arranged on the surface of the track base plate and is fixed through the rail press; the anchor bolt is arranged in the track foundation, the force transmission plate is arranged on the surface of the resisting force component at intervals, the resisting force component is arranged between the track foundation and the track base plate, the anchor plate is arranged on both sides of the resisting force component at intervals and is fastened through the anchor bolt, the grouting layer is poured around the resisting force component, and the track base plate is located on the surface of the grouting layer. The method determines the thicknesses of the resisting force component and the force transmission plate according to the process requirements, the embedded bolts and the anchor bolt are positioned and installed, the track foundation is poured, the resisting force component, the force transmission plate, the anchor plate and the track base plate are installed, the grouting layer is poured, and the track is installed through the rail press and the track base plate. The structure and the construction method not only can effectively transmit the vertical load of the track, but also have the ability to resist the horizontal load, improve the safety and applicability of the raw material stacker track in the metallurgical industry, and eliminate the safety hazard caused by the fragmentation of the grouting layer. BRIEF DESCRIPTION OF DRAWINGS

[0011] The present application will be further described in detail below in combination with the drawings and embodiments: Figure 1 The raw material stacker track horizontal load resisting structure of the present application is shown in the figure. DETAILED DESCRIPTION

[0012] The raw material stacker track horizontal load resisting structure of the present application is shown in the figure. Figure 1 As shown in the figure, the raw material stacker track horizontal load resisting structure of the present application comprises a track 3, a track foundation 1, a grouting layer 2, a rail press 7, a track base plate 9 and several embedded bolts 10, the several embedded bolts 10 are arranged in the track foundation 1, the track base plate 9 is arranged on the surface of the grouting layer 2 at intervals and is fixed through the embedded bolts 10, and the track 3 is arranged on the surface of the track base plate 9 and is fixed through the rail press 7 and the rail press fixing bolt 6; further comprising a resisting force component 11, a force transmission plate 8, an anchor plate 4 and an anchor bolt 5, the anchor bolt 5 is arranged in the track foundation 1, the force transmission plate 8 is arranged on the surface of the resisting force component 11 at intervals, the resisting force component 11 is arranged between the track foundation 1 and the track base plate 9, the anchor plate 4 is arranged on both sides of the resisting force component 11 at intervals and is fastened through the anchor bolt 5, the grouting layer 2 is poured around the resisting force component 11, and the track base plate 9 is located on the surface of the grouting layer 2.

[0013] Preferably, the resisting force component 11 is two channel steels arranged along the length of the track 3, and the two channel steels are arranged back to back, the force transmission plate 8 is welded on the upper flanges of the two channel steels at intervals, and the anchor plate 4 is welded on the lower flanges of the two channel steels at intervals.

[0014] Preferably, the track foundation 1 is casted by reinforced concrete, and the grouting layer 2 is casted by cement-based grouting material, and is arranged along the length of the track 3, with a width of 400 mm and a thickness of 100 mm.

[0015] Preferably, the distance between the two channel steels in back-to-back arrangement is 40 mm, and the force transmission plate 8 is welded in the middle of the upper flanges of the two channel steels, so that the two channel steels form a whole.

[0016] In the structure, the track foundation is casted by reinforced concrete with a strength grade of C40. The grouting layer is casted by cement-based grouting material, and is arranged along the length of the track, with a width of 400 mm and a thickness of 100 mm. The track is of QU100 type. The anchor plate is a steel plate with a specification of 100x100x10 mm and a thickness of 10 mm. The anchor bolt is embedded into the track foundation with a specification of M10x250. The rail presser fixing bolt and the rail presser are matched with the track. The force transmission plate is a steel plate with a specification of 120x120x20 mm and a thickness of 20 mm. The track pad is a steel plate with a specification of 250x250x10 mm and a thickness of 10 mm. The embedded bolt is embedded into the track foundation with a specification of M12x300. The resistance component is composed of two channel steels with a distance of 40 mm between the two channel steels.

[0017] The resistance component is a load-bearing component for resisting the horizontal load and vertical load transmitted by the track, and is composed of two channel steels in back-to-back arrangement. The height of the resistance component is determined according to the distance between the track pad and the track foundation.

[0018] The anchor plate is arranged on the resistance component in an interval by welding, and the anchor bolt and the anchor plate fix the resistance component on the track foundation. The anchor plate and the anchor bolt are arranged in pairs on both sides of the resistance component.

[0019] The force transmission plate is a component for connecting the resistance component into a whole and transmitting the load of the track to the resistance component, and is arranged on the upper surface of the resistance component in an interval. The force transmission plate is connected with the two channel steels by welding. The thickness of the force transmission plate is determined according to the distance between the track and the resistance component.

[0020] The track is fixed by the rail presser, and the rail presser is fixed on the track pad by the rail presser fixing bolt. The track pad is placed on the resistance component and is fixed on the track foundation by the embedded bolt.

[0021] The components of the structure are installed from the bottom to the top of the track foundation, in which the embedded bolt and the anchor bolt are embedded in the foundation during the construction of the track foundation. The force transmission plate and the anchor plate are installed on the resistance component by welding. After the resistance component is fixed, the track pad and the rail presser are installed. Then, the grouting layer is casted. Finally, the track is installed.

[0022] A construction method based on the above raw material stacker track horizontal load resisting structure includes the following steps: Step one, according to the process requirements of the track bottom elevation and track foundation elevation, determine the thickness of the resistance component and the force transfer plate; Step two, setting out, installing embedded bolts and anchor bolts, uniformly arranging along the full length of the track, each pair is arranged on both sides of the resistance component, the spacing of the embedded bolts and anchor bolts is 600mm, and the anchor bolt is arranged between the two groups of embedded bolts; Step three, pouring reinforced concrete track foundation, placing the resistance component on the flat ground, welding the force transfer plate on the surface of the resistance component, the spacing of the force transfer plate is 600mm, and the force transfer plate is uniformly arranged along the resistance component; Step four, symmetrically welding anchor plates on both sides of the bottom of the resistance component, the spacing of the anchor plates is 600mm, and the anchor plates are uniformly arranged along the resistance component, and the center lines of the anchor plates and the force transfer plates are in the same vertical plane; Step five, after the track foundation is maintained to the strength required by the design, hoist the resistance component between the embedded bolts, and fix the anchor plate with the anchor bolt with a nut, and install the resistance component on the track foundation; Step six, placing the track pad on the surface of the resistance component, the position corresponds to the embedded bolt, fixing the bolt hole of the track pad through the embedded bolt with a nut, and installing the rail press on the track pad; Step seven, pouring the grouting layer, the grouting layer has a width of 400mm and a thickness of 100mm, and is poured along the length; Step eight, after the grouting layer is maintained to the strength required by the design, install the track through the rail press and the track pad.

[0023] Preferably, the track foundation elevation is ±0.00m, the track bottom elevation is +0.10m, and the track pad elevation is adjusted to +0.10m.

[0024] A raw material stacker of a certain steel enterprise adopts QU100 type track, during the production process of the stacker, the grab equipment performs the actions of stacking, taking and horizontally leveling the material pile, the stacker will squeeze the track to generate vertical load and horizontal load during the production process, and the existing grouting layer between the track and the foundation can only bear the vertical load, the horizontal load destroys the grouting layer, after the grouting layer is broken, the track loses effective support and appears deviation in straightness and levelness, the track is broken at serious parts, and the production of the stacker cannot be carried out normally. The application of the structure and the construction method can form a structure system resisting horizontal load at the support part of the track, and solve the problem of insufficient integrity and stiffness of the track support structure.

[0025] The structure and construction method improves the overall rigidity of the track support structure and the ability to resist horizontal load by designing an intervening steel structure construction system in the track grouting layer to form a steel-concrete composite structure. It remedies the defect that the track grouting layer support of the raw material stacker-reclaimer cannot resist horizontal load, effectively solves the problem of cracking and loss of function of the grouting layer under the horizontal load caused by track extrusion. It can greatly reduce the deformation and damage of the track of the raw material stacker-reclaimer in the metallurgical industry, reduce the repair work of the grouting layer, reduce the maintenance cost, and eliminate safety hazards.

Claims

1. A horizontal load-resistant structure for a raw material stacker-reclaimer track, comprising a track, a track foundation, a grouting layer, a rail clamp, a track pad, and a plurality of pre-embedded bolts, wherein the plurality of pre-embedded bolts are disposed within the track foundation, the track pads are spaced apart on the surface of the grouting layer and fixed by the pre-embedded bolts, and the track is mounted on the surface of the track pads and fixed by the rail clamp, characterized in that: It also includes a resisting component, a force transmission plate, an anchor plate, and anchor bolts. The anchor bolts are installed inside the track foundation. The force transmission plates are spaced apart on the surface of the resisting component. The resisting component is located between the track foundation and the track pad. The anchor plates are symmetrically spaced on both sides of the resisting component and fastened with anchor bolts. The grouting layer is poured around the resisting component, and the track pad is located on the surface of the grouting layer.

2. The horizontal load-resistant structure of the raw material stacker-reclaimer track according to claim 1, characterized in that: The resisting member consists of two channel steels arranged along the entire length of the track, with the two channel steels arranged back to back. The force transmission plate is welded at intervals to the upper flange of the two channel steels, and the anchor plate is symmetrically welded to the lower flange of the two channel steels.

3. The horizontal load-resistant structure of the raw material stacker-reclaimer track according to claim 1 or 2, characterized in that: The track foundation is made of reinforced concrete, and the grouting layer is made of cement-based grouting material and is set along the entire length of the track, with a width of 400mm and a thickness of 100mm.

4. The horizontal load-resistant structure of the raw material stacker-reclaimer track according to claim 2, characterized in that: The two channel steels are back-to-back with a spacing of 40mm. The force transmission plate is welded to the upper flange of the two channel steels in the center, so that the two channel steels form a whole.

5. A construction method for a horizontal load-resistant structure for a stacker-reclaimer track as described in any one of claims 1 to 4, characterized in that... Includes the following steps: Step 1: Determine the thickness of the resisting components and force transmission plates based on the required elevation of the track bottom surface and track foundation. Step 2: Lay out and position the track, install the pre-embedded bolts and anchors, evenly distributed along the entire length of the track, and arranged in pairs on both sides of the resistive member. The spacing between the pre-embedded bolts and anchors is 600mm, and the anchors are placed between the two sets of pre-embedded bolts. Step 3: Pour reinforced concrete track foundation, place the resisting component on a flat ground, weld the force transfer plate to the surface of the resisting component, with a spacing of 600mm between the force transfer plates, and evenly distribute them along the resisting component. Step 4: Weld anchor plates symmetrically to both sides of the bottom of the resisting member. The anchor plates are spaced 600mm apart and evenly distributed along the resisting member. The center lines of the anchor plates and the force transmission plates are on the same vertical plane. Step 5: After the track foundation has been cured to the strength required by the design, the resistive components are hoisted between the pre-embedded bolts, and the anchor plates and anchor bolts are fixed with nuts. The resistive components are then installed on the track foundation. Step 6: Place the track pad on the surface of the resistive component, with the position corresponding to the pre-embedded bolts. Pass the bolt holes of the track pad through the pre-embedded bolts and fix them with nuts. Install the rail clamp on the track pad. Step 7: Pour the grouting layer, which is 400mm wide and 100mm thick, and pour it along its entire length. Step 8: After the grouting layer has cured to the strength required by the design, install the rail using a rail clamp and rail pad.

6. The construction method of the horizontal load-resistant structure of the raw material stacker-reclaimer track according to claim 5, characterized in that: The track foundation elevation is ±0.00m, the track bottom elevation is +0.10m, and the track pad elevation is adjusted to +0.10m.

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