A method for drilling bolt holes in a mountain-shaped steel-concrete composite beam

Abstract

The application discloses a bolt hole drilling method for a mountain-shaped steel-concrete composite beam, which comprises a bottom plate connecting plate drilling step and a bottom plate drilling process. In the bottom plate connecting plate drilling step, two first connecting plates are superimposed on a second connecting plate to jointly perform numerical control programming drilling. The bottom plate drilling process comprises the following steps: the front half part of the second connecting plate is attached to and fixed on the rear end upper surface of a front bottom plate, then the front bottom plate is drilled in matched mode; the front bottom plate is connected with a matched first left web plate, a first right web plate and a first middle web plate to form a first beam segment, and a rear bottom plate is welded with a matched second left web plate, a second right web plate and a second middle web plate to form a second beam segment; the excess on the front end of the second beam segment is cut off, and the first beam segment is spliced with the second beam segment; the front half part of the two first connecting plates is attached to the rear end of the front bottom plate, and the rear bottom plate is drilled in matched mode. The application can improve the drilling precision and efficiency of the bottom plate and ensure accurate matching of the hole groups.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building, in particular to a bolt hole drilling method for a mountain-shaped steel-concrete composite beam. BACKGROUND

[0002] The conventional steel-concrete composite beam of the bridge is an H-shaped steel beam, and such a steel beam structure is simple, and the bolt hole precision is easy to control. However, in the design of a large-section beam segment, considering the need for structural strength, more and more designs adopt the form of a mountain-shaped steel-concrete composite beam. Such a mountain-shaped steel-concrete composite beam usually includes at least two beam segments that are sequentially spliced, and each beam segment usually includes a bottom plate, a left web plate, a right web plate, and a middle web plate. The left and right ends of the bottom plate are respectively welded with the left web plate and the right web plate, and the middle of the bottom plate is welded with the middle web plate, so that the bottom plate, the left web plate, the right web plate, and the middle web plate form a mountain shape. In the two adjacent beam segments that are spliced together, the two bottom plates are generally spliced in the form of a double-connection-plate joint. Since the beam segment is divided into two cavities by the middle web plate, two first connection plates are arranged on the upper side of the bottom plate, and the two first connection plates are respectively located on the left and right sides of the middle web plate. A second connection plate is arranged below the bottom plate, and a plurality of high-strength bolts are sequentially arranged through the first connection plate, the bottom plate, and the second connection plate, so as to connect the two bottom plates, the two first connection plates, and the second connection plate together. Therefore, the bottom plate, the first connection plate, and the second connection plate all need to be drilled. In the prior art, each beam segment is first welded and corrected as a whole, and then drilled at the splicing end of the two bottom plates when the two beam segments are matched and pre-assembled. Due to the complex connection joint between the two beam segments and the working condition limitation, the drilling positions of the holes on the bottom plates can only be manually marked according to the theoretical size and then drilled. This method cannot guarantee the hole group manufacturing precision on the bottom plate, cannot guarantee the accurate matching of the hole groups on the two bottom plates with the hole groups on the first connection plate or the hole groups on the second connection plate, and has low overall drilling efficiency, which cannot meet the production flow requirements and will cause process backlog. SUMMARY

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application provides a bolt hole drilling method for a mountain-shaped steel-concrete composite beam, which can improve the hole drilling precision of the bottom plate, guarantee the accurate matching of the hole groups on the two bottom plates with the hole groups on the first connection plate and the hole groups on the second connection plate, improve the hole group drilling efficiency on the bottom plate, avoid process backlog, and improve the production efficiency.

[0004] The bolt hole drilling method of the mountain-shaped steel-concrete composite beam according to the first aspect embodiment of the present application comprises a bottom plate connecting plate drilling step and a bottom plate drilling process. In the bottom plate connecting plate drilling step, two first connecting plates are stacked on a second connecting plate, and then the two first connecting plates and the second connecting plate are jointly programmed and drilled, so as to drill a plurality of first through holes in the two first connecting plates and a plurality of second through holes in the second connecting plate, and all the first through holes correspond to all the second through holes one by one. The bottom plate drilling process comprises the following steps. In the first step, two bottom plates to be spliced together are a front bottom plate and a rear bottom plate. The front end of the rear bottom plate has a surplus, and the rear end of the front bottom plate has no surplus. The front half of the second connecting plate is attached to and fixed on the rear end upper surface of the front bottom plate, and then the front bottom plate is drilled in a matched manner by using the second through holes on the front half of the second connecting plate as positioning, so as to drill a plurality of third through holes in the rear end of the front bottom plate. In the second step, the front bottom plate is connected with a first left web plate, a first right web plate and a first intermediate web plate to form a first beam segment, and the rear bottom plate is welded with a second left web plate, a second right web plate and a second intermediate web plate to form a second beam segment. In the third step, the surplus on the front end of the second beam segment is cut off, and the first beam segment and the second beam segment are spliced together so that the rear end of the front bottom plate is spliced with the front end of the rear bottom plate. In the fourth step, the front half of the two first connecting plates is attached to the rear end of the front bottom plate, and the first intermediate web plate is located between the two first connecting plates, and the rear half of the first connecting plate is located above the rear bottom plate. Then, at least two first through holes are selected from the front half of each first connecting plate, and a first fixing member is inserted into the corresponding third through hole on the front bottom plate, so that the first connecting plate is fixed on the front bottom plate, and all the third through holes are aligned with the corresponding first through holes one by one. Then, the rear bottom plate is drilled in a matched manner by using the first through holes above the rear bottom plate as positioning, so as to drill a plurality of fourth through holes in the spliced end of the rear bottom plate.

[0005] According to the bolt hole drilling method of the mountain-shaped steel-concrete composite beam, at least the following beneficial effects are achieved: in the bottom plate connecting plate drilling step, two first connecting plates and a second connecting plate used for connecting the front and rear bottom plates are first overlapped together and then drilled by numerical control programming, so that the first connecting plate and the second connecting plate have high drilling precision and high drilling efficiency, and the first through hole on the first connecting plate and the corresponding second through hole on the second connecting plate are accurately matched; in the bottom plate drilling process, the drilling work of the front bottom plate is completed before the beam segment is made, so that the drilling work of the front bottom plate is not hindered by the webs, and then the front bottom plate of the two bottom plates to be spliced together is drilled through the second through hole on the front end of the second connecting plate, and then the excess on the front end of the second beam segment is cut off after the first beam segment and the second beam segment are made, so that the cumulative error between the front bottom plate and the rear bottom plate caused by the deformation during the beam segment making process can be reduced or eliminated, and the drilling work of the rear bottom plate is performed after the excess is cut off, so that the influence of the cumulative error on the drilling of the rear bottom plate can be effectively reduced, and in the drilling work of the rear bottom plate, the first connecting plate can be positioned and fixed through the cooperation of the first fixed part and the corresponding first through hole by using the third through hole drilled on the front bottom plate, and this fixing method is easy to implement and is not limited by the working conditions of the webs, and then the rear bottom plate can be drilled through the first through hole on the rear end of the first connecting plate, so that the above-mentioned bottom plate drilling process can make the front bottom plate and the rear bottom plate both be drilled through matched drilling, thereby effectively reducing the number of line drilling on the front bottom plate and the rear bottom plate, improving the drilling efficiency, and the matched drilling method can make the drilling precision of the front bottom plate and the rear bottom plate high, and the cumulative error between the two bottom plates is reduced or eliminated through cutting of the excess, thereby realizing the accurate matching of the hole groups on the two bottom plates with the hole groups on the first connecting plate and the hole groups on the second connecting plate.

[0006] According to some embodiments of the present application, before the first beam segment and the second beam segment are made, the front bottom plate and the rear bottom plate are fixed on the assembly jig in the front-rear direction, and the rear end of the front bottom plate and the front end of the rear bottom plate are abutted together, and after the excess on the front end of the second beam segment is cut off, a bolt joint is formed between the front bottom plate and the rear bottom plate fixed on the assembly jig.

[0007] According to some embodiments of the present application, in the third step, the assembly jig releases the fixation of the first beam segment and the second beam segment to release the residual stress inside the beam segment within a predetermined time, and after the stress release is completed, the assembly jig re-fixes the first beam segment and the second beam segment.

[0008] According to some embodiments of the present application, in the first step, at least two second through holes on the front half of the second connecting plate are selected as first positioning holes, and according to the position of each first positioning hole on the second connecting plate, a line is drawn on the upper surface of the rear end of the front bottom plate, and at least two second positioning holes are drilled on the front bottom plate one by one, then the front half of the second connecting plate is attached to the rear end of the front bottom plate, and then a second fixing member is inserted into each first positioning hole, and the second fixing member is inserted into the corresponding second positioning hole, so as to fix the second connecting plate on the front bottom plate.

[0009] According to some embodiments of the present application, the rear end edge of the front bottom plate is perpendicular to the front-rear direction, the length of the excess length section in the front-rear direction is L0, in the first step, a bottom plate center line in the front-rear direction is drawn on the front bottom plate, a first longitudinal center line in the front-rear direction and a first transverse center line in the left-right direction are drawn on the second connecting plate, the distance L1 from each first positioning hole to the first longitudinal center line and the distance L2 to the first transverse center line are measured, then the first transverse positioning line and the first longitudinal positioning line of the corresponding second positioning hole are drawn on the front bottom plate according to L1 and L2, and then the corresponding second positioning hole is drilled at the intersection of the first transverse positioning line and the first longitudinal positioning line, wherein the distance between the first transverse positioning line of the corresponding second positioning hole and the rear end edge of the front bottom plate is L2-0.5L0, and the distance between the first longitudinal positioning line of the corresponding second positioning hole and the bottom plate center line of the front bottom plate is L1.

[0010] According to some embodiments of the present application, the left web connecting plate drilling step includes: two third connecting plates for connecting the first left web and the second left web are first overlapped together and then jointly programmed and drilled, so as to drill a plurality of fifth through holes on each third connecting plate; and the left web drilling step includes: after the first beam section and the second beam section are spliced, the rear end of the first left web and the front end of the second left web are also spliced together, then the front and rear ends of the third connecting plate are respectively attached and fixed on the first left web and the second left web, and the first left web and the second left web are drilled in pairs by using the fifth through holes on the third connecting plate as positioning.

[0011] According to some embodiments of the present application, in the left web plate drilling step, two fifth through holes are selected as third positioning holes at the front end and the rear end of the third connecting plate respectively, and according to the position of each third positioning hole on the third connecting plate, scribe drilling is performed at the rear end of the first left web plate and the front end of the second left web plate, thereby drilling two fourth positioning holes on the first left web plate and the second left web plate respectively, then the front and rear ends of the third connecting plate are respectively pasted on the first left web plate and the second left web plate, and then a third fixing member is inserted into each third positioning hole, the third fixing member is inserted into the corresponding fourth positioning hole, thereby fixing the front and rear ends of the third connecting plate on the first left web plate and the second left web plate respectively.

[0012] According to some embodiments of the present application, in the left web plate drilling step, the rear end line of the first left web plate and the front end line of the second left web plate are parallel to each other and perpendicular to the front-rear direction, wherein the process of scribing and drilling the fourth positioning holes includes: drawing a web center line along the front-rear direction on the first left web plate and the second left web plate, drawing a second transverse center line along the front-rear direction and a second longitudinal center line perpendicular to the second transverse center line on the third connecting plate; measuring the distance L3 between the rear end line of the first left web plate and the front end line of the second left web plate, and selecting two first positioning points on the upper and lower edge lines of the third connecting plate which are parallel to each other, the four first positioning points are symmetrically distributed two by two with the second longitudinal center line as the symmetry line, and the distance between each first positioning point and the second longitudinal center line is 0.5L3; measuring the distance L4 between the second transverse center line and the upper edge line or the lower edge line of the third connecting plate, and according to L4, drawing two auxiliary positioning lines on the first left web plate and the second left web plate, thereby determining two second positioning points on the rear edge line of the first left web plate and the front edge line of the second left web plate respectively, and the four second positioning points correspond one by one to the four first positioning points; selecting four fifth through holes as third positioning holes on the third connecting plate, which are in rectangular distribution with the second longitudinal center line as the symmetry line, and measuring the distance L5 between each third positioning hole and the second transverse center line, and the front-rear distance L6 between each third positioning hole and the nearest first positioning point, then according to L5, drawing a second transverse positioning line of the corresponding fourth positioning hole based on the web center line, and according to L6, drawing a second longitudinal positioning line of the corresponding fourth positioning hole based on the corresponding second positioning point, and then drilling the corresponding fourth positioning hole at the intersection of the second transverse positioning line and the second longitudinal positioning line.

[0013] According to some embodiments of the present application, the middle web plate connecting plate drilling step is the same as the left web plate connecting plate drilling step, and the middle web plate drilling step is the same as the left web plate drilling step.

[0014] According to some embodiments of the present application, the right web plate connecting plate drilling step is the same as the left web plate connecting plate drilling step, and the right web plate drilling step is the same as the right web plate drilling step.

[0015] Additional aspects and advantages of the present application will be made apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 A schematic view of a mountain-shaped steel-concrete composite beam at a connection between a first beam segment and a second beam segment, for a bolt hole drilling method of a mountain-shaped steel-concrete composite beam according to an embodiment of the present application;

[0018] Figure 2 A schematic view of a front web plate and a rear web plate, for a bolt hole drilling method of a mountain-shaped steel-concrete composite beam according to an embodiment of the present application; Figure 1 A cross-sectional view of a mountain-shaped steel-concrete composite beam at an A-A cross section, for a bolt hole drilling method of a mountain-shaped steel-concrete composite beam according to an embodiment of the present application;

[0019] Figure 3 A schematic view of a floor connecting plate drilling step, for a bolt hole drilling method of a mountain-shaped steel-concrete composite beam according to an embodiment of the present application;

[0020] Figure 4 A schematic view of a first connecting plate and a second connecting plate after the floor connecting plate drilling step, for a bolt hole drilling method of a mountain-shaped steel-concrete composite beam according to an embodiment of the present application; Figure 3 A schematic view of a first connecting plate and a second connecting plate after the floor connecting plate drilling step, for a bolt hole drilling method of a mountain-shaped steel-concrete composite beam according to an embodiment of the present application;

[0021] Figure 5 A schematic view of fixing a front web plate and a rear web plate on an assembly jig, in a floor drilling process of a bolt hole drilling method of a mountain-shaped steel-concrete composite beam according to an embodiment of the present application;

[0022] Figure 6 A schematic view of marking and drilling a second positioning hole in a front web plate, in a first step of a floor drilling process of a bolt hole drilling method of a mountain-shaped steel-concrete composite beam according to an embodiment of the present application;

[0023] Figure 7 A schematic view of drilling a third through hole in a front web plate, in a first step of a floor drilling process of a bolt hole drilling method of a mountain-shaped steel-concrete composite beam according to an embodiment of the present application;

[0024] Figure 8 A schematic view of completing a second step and a third step of a bolt hole drilling method of a mountain-shaped steel-concrete composite beam according to an embodiment of the present application;

[0025] Figure 9 A schematic diagram of a fourth step of a bolt hole drilling method for a mountain-shaped steel-concrete composite beam according to an embodiment of the present application;

[0026] Figure 10 A schematic diagram of a left web connecting plate drilling step of a bolt hole drilling method for a mountain-shaped steel-concrete composite beam according to an embodiment of the present application;

[0027] Figure 11 A schematic diagram of a third connecting plate after the left web connecting plate drilling step shown; Figure 10 A schematic diagram of a third connecting plate after the left web connecting plate drilling step shown;

[0028] Figure 12 A schematic diagram of a line drawing on a third connecting plate in a left web drilling step of a bolt hole drilling method for a mountain-shaped steel-concrete composite beam according to an embodiment of the present application;

[0029] Figure 13 A schematic diagram of a fourth positioning hole drilled on a rear bottom plate in a left web drilling step of a bolt hole drilling method for a mountain-shaped steel-concrete composite beam according to an embodiment of the present application;

[0030] Figure 14 A schematic diagram of a first left web and a second left web drilled by a third connecting plate in a left web drilling step of a bolt hole drilling method for a mountain-shaped steel-concrete composite beam according to an embodiment of the present application.

[0031] Reference numerals:

[0032] First connecting plate 100, first through hole 110, second connecting plate 200, second through hole 210, first positioning hole 210a, first longitudinal center line 220, first transverse center line 230, front bottom plate 310, third through hole 311, second positioning hole 311a, bottom plate center line 312, first transverse positioning line 313, first longitudinal positioning line 314, rear bottom plate 320, bolt seam 330, fourth through hole 321, excess 322, first left web 410, fourth positioning hole 411, web center line 412, auxiliary positioning line 413, second positioning point 414, second transverse positioning line 415, second longitudinal positioning line 416, second left web 420, first right web 510, second right web 520, first intermediate web 610, second intermediate web 620, third connecting plate 700, fifth through hole 710, third positioning hole 710a, second transverse center line 720, second longitudinal center line 730, first positioning point 740, fourth connecting plate 810, fifth connecting plate 820, assembly jig 900, first fixing member 910, second fixing member 920, third fixing member 930. DETAILED DESCRIPTION

[0033] Embodiments of the present application are described below in detail with reference to the accompanying drawings, wherein the same or similar components or components having the same or similar functions are denoted by the same or similar reference numerals throughout the drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and cannot be understood as a limitation of the present application.

[0034] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0035] In the description of the present application, several meanings are one or more, and the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If the first, second is described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0036] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0037] According to the bolt hole drilling method of the mountain-shaped steel-concrete composite beam according to the embodiments of the present application, the bottom plate connecting plate drilling step and the bottom plate drilling process are included, with reference to Figure 3 and Figure 4 In the bottom plate connecting plate drilling step, two first connecting plates 100 are superimposed on the second connecting plate 200, and then the two first connecting plates 100 and the second connecting plate 200 are combined to perform numerical control programming drilling, thereby drilling a plurality of first through holes 110 on the two first connecting plates 100 and a plurality of second through holes 210 on the second connecting plate 200, and all the first through holes 110 and all the second through holes 210 correspond one by one; the bottom plate drilling process includes: the first step, with reference to Figure 6 and Figure 7, two need to splice together the floor is the front floor 310, 320 back floor, the front end of the back floor 320 left over 322, the rear end of the front floor 310 no 322, the second connecting plate 200 of the front half of the front floor 310 on the upper surface of the rear end of the fixed, then use the second connecting plate 200 front half of the second hole 210 as a positioning front floor 310 for matching drilling, so that the rear end of the front floor 310 drilled a plurality of third hole 311, after the completion of the third hole 311 drilling, remove the second connecting plate 200; the second step: refer to Figure 8 , the front floor 310 and the first left web 410, 510 first right web and first intermediate web 610 connected to form the first beam section, the back floor 320 and the second left web 420, 520 second right web and second intermediate web 620 welded to form the second beam section; the third step: refer to Figure 8 , cut off the second beam section on the front end of the excess 322, the first beam section and the second beam section to make the rear end of the front floor 310 and the front end of the back floor 320 to splice; the fourth step: refer to Figure 9 , the two first connecting plate 100 of the front half of the front floor 310 on the rear end, and the first intermediate web 610 between the two first connecting plate 100, the rear half of the first connecting plate 100 above the back floor 320, then select at least two first hole 110 from the front half of each first connecting plate 100 first fixed 910, first fixed 910 inserted in the corresponding third hole 311 on the front floor 310, so that the first connecting plate 100 is fixed on the front floor 310, all the third hole 311 and the corresponding first hole 110 one by one, then use the first hole 110 above the back floor 320 as a positioning back floor 320 for matching drilling, so that the splice end of the back floor 320 drilled a plurality of fourth hole 321.

[0038] In the step of making holes in the base plate connecting plate, the two first connecting plates 100 and the second connecting plate 200 used for connecting the front and rear base plates are first overlapped together and then numerically programmed and drilled together, so that the first connecting plate 100 and the second connecting plate 200 have high drilling precision and high drilling efficiency, and the first through hole 110 on the first connecting plate 100 and the corresponding second through hole 210 on the second connecting plate 200 are precisely matched; in the base plate drilling process, the hole drilling work of the front base plate 310 is completed before the beam section is made, so that the hole drilling work of the front base plate 310 is not hindered by the various web plates, so that the second through hole 210 on the front end of the second connecting plate 200 can be used to drill the front base plate 310 of the two base plates that need to be spliced together, and then the excess amount 322 on the front end of the second beam section is cut off after the first beam section and the second beam section are made, so that the cumulative error between the front base plate 310 and the rear base plate 320 caused by the deformation during the beam section making process can be reduced or eliminated, and the hole drilling work of the rear base plate 320 is performed after the excess amount 322 is cut off, which can effectively reduce the influence of the cumulative error on the hole drilling of the rear base plate 320. In addition, in the hole drilling work of the rear base plate 320, the first connecting plate 100 can be positioned and fixed by the cooperation of the first fixed part 910 and the corresponding first through hole 110 through the third through hole 311 drilled on the front base plate 310. This fixing method is easy to implement and is not limited by various working conditions such as web plates, and the first through hole 110 on the rear end of the first connecting plate 100 can also be used to drill the rear base plate 320. In this way, the above-mentioned base plate drilling process can make the front base plate 310 and the rear base plate 320 both be drilled in a matched drilling manner, thereby effectively reducing the number of line drilling on the front base plate 310 and the rear base plate 320, improving the drilling efficiency, and the matched drilling manner can make the front base plate 310 and the rear base plate 320 have high drilling precision, and the cumulative error between the two base plates is reduced or eliminated through the cutting of the excess amount 322, thereby realizing the precise matching of the hole groups on the two base plates with the hole groups on the first connecting plate 100 and the second connecting plate 200, and effectively avoiding the problem that the cumulative error causes the hole groups on the two base plates to not be matched with the hole groups on the first connecting plate 100 and the second connecting plate 200 at the same time.

[0039] The first fixed part 910 can include but is not limited to pins, bolts and other components, which are easy to obtain on the construction site, and the installation of these first fixed parts 910 is less limited by various working conditions such as web plates, so that the front half of the first connecting plate 100 can be easily fixed on the front base plate 310, the construction cost is low, and it is suitable for the hole drilling of all similar I-shaped steel-concrete composite beams, which has good universality.

[0040] Referring to Figure 9In the embodiment, the first connecting plate 100 is fixed by four first fixing members 910 arranged in a rectangular shape, including two pins arranged diagonally and two bolts arranged diagonally. In the fixing process of the first connecting plate 100, the first connecting plate 100 is first positioned by the two pins, and then the two bolts are tightened to completely fix the first connecting plate 100.

[0041] In the embodiment, the magnetic drill can be used to drill the front bottom plate 310 and the rear bottom plate 320 to obtain higher drilling accuracy. When the magnetic drill is used to drill the front bottom plate 310, after drilling each hole, the second connecting plate 200 and the front bottom plate 310 are carefully checked for any misalignment before drilling the next hole. If there is any misalignment, it should be adjusted in time before drilling.

[0042] Referring to Figure 6 to Figure 8 It can be imagined that in some embodiments, before the first beam segment and the second beam segment are made, the front bottom plate 310 and the rear bottom plate 320 are fixed on the assembly jig 900 in the front-rear direction, and the rear end of the front bottom plate 310 and the front end of the rear bottom plate 320 are abutted together. After cutting the excess 322 on the front end of the second beam segment, the front bottom plate 310 and the rear bottom plate 320 fixed on the assembly jig 900 form a joint 330. In this way, the abutment of the two beam segments can be achieved during the manufacture of the two beam segments. During this process, the corresponding parts of the two beam segments can be welded and corrected simultaneously, such as the front bottom plate 310 and the rear bottom plate 320 can be adjusted in time when misalignment occurs, and the first left web plate 410 and the second left web plate 420 can be adjusted in time when misalignment occurs, thereby effectively avoiding the misalignment of the corresponding parts of the two beam segments and ensuring that the two beam segments can be accurately spliced.

[0043] Referring to Figure 5 and Figure 8 In the embodiment, before the front half of the second connecting plate 200 is abutted and fixed on the rear end of the front bottom plate 310, the front bottom plate 310 and the rear bottom plate 320 are first fixed on the assembly jig 900 in the front-rear direction. In this way, the first step can be directly performed on the assembly jig 900 without the need for other ways to fix the front bottom plate 310, reducing the number of times the bottom plate is clamped during the entire bottom plate drilling process and improving efficiency.

[0044] It can be imagined that in the third step, the assembly jig 900 releases the fixing of the first beam segment and the second beam segment to release the residual stress inside the beam segment within a predetermined time, after the stress release is completed, the assembly jig 900 re-fixes the first beam segment and the second beam segment, and then the second beam segment cutting allowance 322 is performed, and the cutting allowance 322 should be strictly marked to ensure that the front edge line of the rear floor 320 is parallel to the rear edge line of the front floor 310. Through stress release and cutting allowance 322, the cumulative error between the front floor 310 and the rear floor 320 can be effectively reduced, and the floor hole drilling precision is improved.

[0045] In the specific implementation process, the welding inspection is performed on all the welds of the two beam segments before splicing, the stress release is performed after the correction is completed, and after the internal stress of the beam segment is completely released, the assembly jig 900 re-fixes the two beam segments, and then the various dimensions of the two beam segments are rechecked, and then the rear floor 320 is drilled according to the fourth step.

[0046] Referring to Figure 6 and Figure 7 It can be imagined that in some embodiments, in the first step, at least two second through holes 210 on the front half of the second connecting plate 200 are selected as first positioning holes 210a, and according to the position of each first positioning hole 210a on the second connecting plate 200, a line is drawn on the rear end upper surface of the front floor 310 and drilled, thereby drilling at least two second positioning holes 311a on the front floor 310 one by one. Then the front half of the second connecting plate 200 is attached to the rear end of the front floor 310, and then a second fixing member 920 is inserted into each first positioning hole 210a, and the second fixing member 920 is inserted into the corresponding second positioning hole 311a, thereby fixing the second connecting plate 200 on the front floor 310. The second fixing member 920 can include but is not limited to a pin, a bolt and the like, which are easy to obtain on the construction site, easy to fix the front half of the second connecting plate 200 on the front floor 310, low in construction cost, and will not hinder the drilling task of the front floor 310, suitable for drilling of all types of X-shaped steel-concrete composite beams, and good in universality.

[0047] Of course, it should be noted that in other embodiments, the second connecting plate 200 can be fixed on the front floor 310 by using a positioning clamp such as a clamp, without the interference of the webs in the first step.

[0048] Referring to Figure 6 and Figure 7, specifically, the rear end edge of the front bottom plate 310 is perpendicular to the front-rear direction, and the length of the remaining portion 322 in the front-rear direction is L0, in the first step, the bottom plate center line 312 in the front-rear direction is drawn on the front bottom plate 310, the first longitudinal center line 220 in the front-rear direction and the first transverse center line 230 in the left-right direction are drawn on the second connecting plate 200, the distance L1 from each first positioning hole 210a to the first longitudinal center line 220 and the distance L2 to the first transverse center line 230 are measured, then the first transverse positioning line 313 and the first longitudinal positioning line 314 of the corresponding second positioning hole 311a are drawn on the front bottom plate 310 according to L1 and L2, and then the corresponding second positioning hole 311a is drilled at the intersection of the first transverse positioning line 313 and the first longitudinal positioning line 314, wherein the distance between the first transverse positioning line 313 of the corresponding second positioning hole 311a and the rear end edge of the front bottom plate 310 is L2-0.5L0, and the distance between the first longitudinal positioning line 314 of the corresponding second positioning hole 311a and the bottom plate center line 312 of the front bottom plate 310 is L1. Thus, the corresponding second positioning hole 311a can be drilled on the front bottom plate 310.

[0049] According to some embodiments of the present application, the left web plate connecting plate drilling step comprises: Figure 10 and Figure 11 Two third connecting plates 700 for connecting the first left web plate 410 and the second left web plate 420 are first laminated together and then jointly programmed and drilled, so that a plurality of fifth through holes 710 are drilled on each third connecting plate 700; the left web plate drilling step comprises: Figure 12 to Figure 1 ,4, after the first beam segment and the second beam segment are spliced together, the rear end of the first left web plate 410 and the front end of the second left web plate 420 are also spliced together, then, since the first left web plate 410 and the second left web plate 420 are located on the outside of the H-shaped steel-concrete composite beam, the working conditions are less restricted, therefore, the front and rear ends of the third connecting plate 700 can be respectively laminated and fixed on the first left web plate 410 and the second left web plate 420, and then the fifth through holes 710 on the third connecting plate 700 are used as positioning to drill the first left web plate 410 and the second left web plate 420 in a matched manner, wherein the matched drilling manner can make the drilling precision of the first left web plate 410 and the second left web plate 420 high, and the left web plate connecting plate drilling step is performed after the two beam segments are spliced together, which can ensure that the hole groups of the first left web plate 410 and the second left web plate 420 are accurately matched with the hole groups on the third connecting plate 700.

[0050] Referring to Figure 12 to Figure 14According to some embodiments of the present application, in the left web plate hole drilling step, two fifth through holes 710 are selected as third positioning holes 710a at the front end and the rear end of the third connecting plate 700, and according to the position of each third positioning hole 710a on the third connecting plate 700, a line is drawn on the rear end of the first left web plate 410 and the front end of the second left web plate 420, and then two fourth positioning holes 411 are drilled on the first left web plate 410 and the second left web plate 420 respectively, and then the front end and the rear end of the third connecting plate 700 are respectively attached to the first left web plate 410 and the second left web plate 420, and then a third fixing member 930 is inserted into each third positioning hole 710a, and the third fixing member 930 is inserted into the corresponding fourth positioning hole 411, so as to fix the front end and the rear end of the third connecting plate 700 on the first left web plate 410 and the second left web plate 420 respectively. The third fixing member 930 can include but is not limited to a pin, a bolt and the like, which can be easily obtained on the construction site, so as to easily fix the front half of the third connecting plate 700 on the front bottom plate 310, and the construction cost is low, which is suitable for the hole drilling of all types of mountain-shaped steel-concrete composite beams, and has good universality.

[0051] With reference to Figure 12 to Figure 14, specifically, in the left web plate hole drilling step, the rear end line of the first left web plate 410 and the front end line of the second left web plate 420 are parallel to each other and perpendicular to the front-rear direction, wherein the process of drilling the fourth positioning hole 411 includes: drawing a web center line 412 along the front-rear direction on the first left web plate 410 and the second left web plate 420, drawing a second transverse center line 720 along the front-rear direction and a second longitudinal center line 730 perpendicular to the second transverse center line 720 on the third connecting plate 700; measuring the distance L3 between the rear end line of the first left web plate 410 and the front end line of the second left web plate 420, and taking two first positioning points 740 on the upper and lower two parallel lines on the third connecting plate 700 respectively, the four first positioning points 740 are symmetrically distributed two by two with the second longitudinal center line 730 as the line of symmetry, and the distance between each first positioning point 740 and the second longitudinal center line 730 is 0.5L3; measuring the distance L4 between the second transverse center line 720 and the upper edge line or the lower edge line of the third connecting plate 700, and drawing two auxiliary positioning lines 413 on the first left web plate 410 and the second left web plate 420 according to L4, thereby determining two second positioning points 414 on the rear edge line of the first left web plate 410 and the front edge line of the second left web plate 420 respectively, and the four second positioning points 414 correspond one by one to the four first positioning points 740; selecting four fifth through holes 710 as third positioning holes 710a on the third connecting plate 700 which are distributed in a rectangular shape with the second longitudinal center line 730 as the line of symmetry, and measuring the distance L5 between each third positioning hole 710a and the second transverse center line 720, and the front-rear distance L6 between each third positioning hole 710a and the nearest first positioning point 740, then drawing the second transverse positioning line 415 of the corresponding fourth positioning hole 411 based on the web center line 412 according to L5, and drawing the second longitudinal positioning line 416 of the corresponding fourth positioning hole 411 according to the corresponding second positioning point 414 according to L6, and then drilling the corresponding fourth positioning hole 411 at the position where the second transverse positioning line 415 and the second longitudinal positioning line 416 intersect. By using the above arrangement, the fourth positioning hole 411 can be accurately drilled on the first left web plate 410 and the second left web plate 420, so that when the third connecting plate 700 is fixed on the first left web plate 410 and the second left web plate 420, the second longitudinal center line 730 of the third connecting plate 700 can be accurately located at the middle position between the first left web plate 410 and the second left web plate 420, and the second transverse center line 720 of the third connecting plate 700 can be accurately coincided with the web center line 412, thereby realizing accurate fixing of the third connecting plate 700 and ensuring the drilling accuracy of the first left web plate 410 and the second left web plate 420.

[0052] Referring to Figure 1 and Figure 2In the mountain-shaped steel-concrete composite beam, the first intermediate web and the second intermediate web are spliced by two fourth connecting plates 810, and the first right web and the second right web are spliced by two fifth connecting plates 820.

[0053] Referring to Figure 10 to Figure 14 According to some embodiments of the present application, the intermediate web connecting plate drilling step and the intermediate web drilling step are included, the intermediate web connecting plate drilling step is the same as the left web connecting plate drilling step, and the intermediate web drilling step is the same as the left web drilling step, so the intermediate web connecting plate drilling step and the intermediate web drilling step are not described in detail.

[0054] The present application solves the problem of matching of various connecting plates, various webs and various bottom plate hole groups through the novel design of the hole drilling process of the mountain-shaped steel-concrete composite beam, obtains high hole drilling efficiency under the condition of full hole group precision, avoids process backlog and improves production efficiency. Meanwhile, the present application has high operability, wide application range and is suitable for hole drilling of all types of mountain-shaped steel-concrete composite beams, greatly improving the processing efficiency of such components.

[0055] The technical features of the above-described embodiments can be combined arbitrarily, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictions, they should be considered as the scope of the present application.

[0056] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A method of making bolt holes in a channel section steel and concrete composite beam, characterized by, Comprise: The bottom plate connecting plate hole drilling step: two first connecting plates (100) are superimposed on the second connecting plate (200), and then the two first connecting plates (100) and the second connecting plate (200) are combined to carry out numerical control programming drilling, so that a plurality of first through holes (110) are drilled on the two first connecting plates (100), a plurality of second through holes (210) are drilled on the second connecting plate (200), and all the first through holes (110) correspond to all the second through holes (210) one by one; The bottom plate hole drilling process comprises: The first step: two bottom plates to be spliced together are front bottom plate (310) and rear bottom plate (320), the front end of the rear bottom plate (320) is provided with a surplus (322), the rear end of the front bottom plate (310) is not provided with a surplus (322), the front half of the second connecting plate (200) is attached and fixed to the upper surface of the rear end of the front bottom plate (310), and then the second through holes (210) on the front half of the second connecting plate (200) are used as positioning to drill the front bottom plate (310) in a matched manner, so that a plurality of third through holes (311) are drilled on the rear end of the front bottom plate (310); The second step: the front bottom plate (310) is connected with the matched first left web plate (410), the first right web plate (510) and the first intermediate web plate (610) to form a first beam segment, and the rear bottom plate (320) is welded with the matched second left web plate (420), the second right web plate (520) and the second intermediate web plate (620) to form a second beam segment; The third step: the surplus (322) on the front end of the second beam segment is cut off, and the first beam segment is spliced with the second beam segment so that the rear end of the front bottom plate (310) is spliced with the front end of the rear bottom plate (320); The fourth step: the front half of the two first connecting plates (100) is attached to the rear end of the front bottom plate (310), and the first intermediate web plate (610) is located between the two first connecting plates (100), and the rear half of the first connecting plate (100) is located above the rear bottom plate (320), then at least two first through holes (110) are selected from the front half of each first connecting plate (100) to insert a first fixing piece (910), the first fixing piece (910) is inserted into the corresponding third through hole (311) on the front bottom plate (310), so that the first connecting plate (100) is fixed on the front bottom plate (310), and all the third through holes (311) are aligned with the corresponding first through holes (110) one by one, then the first through holes (110) above the rear bottom plate (320) are used as positioning to drill the rear bottom plate (320) in a matched manner, so that a plurality of fourth through holes (321) are drilled on the spliced end of the rear bottom plate (320); Before the first beam segment and the second beam segment are made, the front bottom plate (310) and the rear bottom plate (320) are fixed on an assembly jig (900) in the front-rear direction, and the rear end of the front bottom plate (310) and the front end of the rear bottom plate (320) are abutted together, after the excess (322) on the front end of the second beam segment is cut, the front bottom plate (310) and the rear bottom plate (320) fixed on the assembly jig (900) form a doweled joint (330) therebetween.

2. The method of claim 1, wherein, In the third step, the assembly jig (900) releases the fixation of the first beam segment and the second beam segment to release the residual stress inside the beam segment, after the stress release is completed, the assembly jig (900) re-fixes the first beam segment and the second beam segment.

3. The method of claim 1, wherein the method is characterized by: In the first step, at least two second through holes (210) on the front half of the second connecting plate (200) are selected as first positioning holes (210a), and according to the position of each first positioning hole (210a) on the second connecting plate (200), a line is drawn and a hole is drilled on the upper surface of the rear end of the front bottom plate (310), thereby at least two second positioning holes (311a) are drilled on the front bottom plate (310) one by one, then the front half of the second connecting plate (200) is attached to the rear end of the front bottom plate (310), and then a second fixing member (920) is inserted into each first positioning hole (210a), the second fixing member (920) is inserted into the corresponding second positioning hole (311a), thereby the second connecting plate (200) is fixed on the front bottom plate (310).

4. The method of claim 3, wherein, The rear end edge of the front bottom plate (310) is perpendicular to the front-rear direction, the length of the excess (322) on the front end of the rear bottom plate (320) in the front-rear direction is L0, in the first step, a bottom plate center line (312) in the front-rear direction is drawn on the front bottom plate (310), a first longitudinal center line (220) in the front-rear direction and a first transverse center line (230) in the left-right direction are drawn on the second connecting plate (200), the distance L1 from each first positioning hole (210a) to the first longitudinal center line (220) and the distance L2 to the first transverse center line (230) are measured, then the first transverse positioning line and the first longitudinal positioning line (314) of the corresponding second positioning hole (311a) are drawn on the front bottom plate (310) according to L1 and L2, then the corresponding second positioning hole (311a) is drilled at the intersection of the first transverse positioning line and the first longitudinal positioning line (314), wherein the distance between the first transverse positioning line of the corresponding second positioning hole (311a) and the rear end edge of the front bottom plate (310) is L2-0.5L0, and the distance between the first longitudinal positioning line (314) of the corresponding second positioning hole (311a) and the bottom plate center line (312) of the front bottom plate (310) is L1.

5. The method of claim 1, wherein, Comprise: The left web plate connecting plate drilling step comprises: two third connecting plates (700) for connecting the first left web plate (410) and the second left web plate (420) are first laminated together and then drilled by numerical control programming, so that a plurality of fifth through holes (710) are drilled on each third connecting plate (700); The left web plate drilling step comprises: after the first beam segment and the second beam segment are spliced, the rear end of the first left web plate (410) and the front end of the second left web plate (420) are also spliced together, then the front and rear ends of the third connecting plate (700) are respectively laminated and fixed on the first left web plate (410) and the second left web plate (420), and the first left web plate (410) and the second left web plate (420) are drilled in pairs by using the fifth through holes (710) on the third connecting plate (700) as positioning.

6. The method of claim 5, wherein the method is characterized by: In the left web plate drilling step, two fifth through holes (710) are selected as third positioning holes (710a) at the front end and the rear end of the third connecting plate (700), and according to the positions of each third positioning hole (710a) on the third connecting plate (700), line drilling is performed on the rear end of the first left web plate (410) and the front end of the second left web plate (420), so that two fourth positioning holes (411) are respectively drilled on the first left web plate (410) and the second left web plate (420), then the front and rear ends of the third connecting plate (700) are respectively laminated on the first left web plate (410) and the second left web plate (420), and then a third fixing member (930) is inserted into each third positioning hole (710a), the third fixing member (930) is inserted into the corresponding fourth positioning hole (411), so that the front and rear ends of the third connecting plate (700) are respectively fixed on the first left web plate (410) and the second left web plate (420).

7. The method of claim 6, wherein the method is characterized by: In the left web plate drilling step, the rear end line of the first left web plate (410) and the front end line of the second left web plate (420) are parallel to each other and perpendicular to the front-rear direction, and the process of line drilling the fourth positioning hole (411) comprises: drawing a web center line (412) along the front-rear direction on the first left web plate (410) and the second left web plate (420), and drawing a second transverse center line (720) along the front-rear direction and a second longitudinal center line (730) perpendicular to the second transverse center line (720) on the third connecting plate (700); measuring the distance L3 between the rear end line of the first left web plate (410) and the front end line of the second left web plate (420), and taking two first positioning points (740) on the upper and lower lines parallel to each other on the third connecting plate (700), the four first positioning points (740) are symmetrically distributed two by two with the second longitudinal center line (730) as the line of symmetry, and the distance between each first positioning point (740) and the second longitudinal center line (730) is 0.5L3; Measuring the distance L4 between the second transverse center line (720) and the upper or lower edge line of the third connecting plate (700), drawing two auxiliary positioning lines (413) on the first left web plate (410) and the second left web plate (420) according to L4, so as to determine two second positioning points (414) on the rear edge line of the first left web plate (410) and the front edge line of the second left web plate (420) respectively, and the four second positioning points (414) correspond to the four first positioning points (740) one by one; Selecting four fifth through holes (710) distributed in a rectangular shape with the second longitudinal center line (730) as the line of symmetry on the third connecting plate (700) as third positioning holes (710a), measuring the distance L5 between each third positioning hole (710a) and the second transverse center line (720) and the front and back distance L6 between each third positioning hole (710a) and the nearest first positioning point (740), then drawing the second transverse positioning line (415) of the corresponding fourth positioning hole (411) based on the web center line (412) according to L5, drawing the second longitudinal positioning line (416) of the corresponding fourth positioning hole (411) according to the corresponding second positioning point (414) according to L6, and then drilling the corresponding fourth positioning hole (411) at the position where the second transverse positioning line (415) and the second longitudinal positioning line (416) intersect.

8. The method according to any one of claims 5 to 7, wherein the method is a method of making bolt holes in a web-steel-concrete composite beam, characterized in that, The method comprises a middle web connecting plate hole making step and a middle web hole making step, the middle web connecting plate hole making step is the same as the left web connecting plate hole making step, and the middle web hole making step is the same as the left web hole making step.

9. The method of claim 5 to 7, wherein the method is characterized in that, The method comprises a right web connecting plate hole making step and a right web hole making step, the right web connecting plate hole making step is the same as the left web connecting plate hole making step, and the right web hole making step is the same as the right web hole making step.

Images