CN113187378B

CN113187378B - Standardized extension construction method for steel member with any length

Info

Publication number: CN113187378B
Application number: CN202110416038.7A
Authority: CN
Inventors: 史广勇; 叶涛萍; 刘昌健; 杨凯
Original assignee: China Construction Second Engineering Bureau Co Ltd; First Construction Engineering Co Ltd of China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd; First Construction Engineering Co Ltd of China Construction Second Engineering Bureau Co Ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-07-05
Anticipated expiration: 2041-04-16
Also published as: CN113187378A; ZA202203758B

Abstract

The invention provides a standardized extension construction method for a steel member with any length, and belongs to the technical field of steel members. The standardized extension construction method of the steel member with any length comprises the following steps of S1: the equipment of cat ladder spare I, cat ladder spare I' S skeleton comprises two angle steel I, four steel sheet I, round steel I a plurality of and two of engaging lug board I, two angle steel I parallel arrangement, and between two angle steel I of a plurality of round steel I equidistance fixed connection, S2: cat ladder piece II 'S equipment, cat ladder piece II is provided with a plurality of sections, and every section cat ladder piece II' S skeleton comprises two angle steel II, round steel II a plurality of, two and two of steel sheet II and engaging lug board II, S3: the assembly of cat ladder spare III, cat ladder spare III's skeleton comprises two angle steel III, round steel III a plurality of and steel sheet III two. The quick and quantitative installation of different length steel members can be satisfied to this application, great acceleration the on-the-spot installation rate.

Description

Standardized extension construction method for steel member with any length

Technical Field

The invention relates to the field of steel members, in particular to a standardized extension construction method for steel members with any length.

Background

The unequal length requirements of certain steel components with the same spacing can be seen in conventional engineering projects, for example, the spacing between the crawling ladders in the vertical well and the crawling ladders in the water collecting well of the project is 300mm, and the length of each crawling ladder is 0.6-23 m. When demand length is shorter and convenient transportation, can directly process, but when demand length constantly changes, during unable production by volume, conventional practice is for dividing into the segment processing transportation that can transport, and at the scene secondary welding reinforcement, but actual site space is narrow and small, and the workman welds the difficulty, and construction quality is difficult to guarantee.

The problem of how to find a method for directly installing and lengthening any length of a steel member with the same distance on site is the current problem of the project.

Disclosure of Invention

In order to make up for the defects, the invention provides a standardized extension construction method for steel members with any length, aiming at solving the problem that the steel members with the same spacing can not be directly installed and extended on site with any length.

The invention is realized by the following steps:

the invention provides a standardized extension construction method for steel members with any length, which comprises the following steps:

s1: assembling a ladder stand part I, wherein a framework of the ladder stand part I consists of two angle steels I, four steel plates I, a plurality of round steels I and two connecting lug plates I, the two angle steels I are arranged in parallel, the round steels I are fixedly connected between the two angle steels I at equal intervals, the four steel plates I are respectively and fixedly connected to two ends of the corresponding angle steels I, each steel plate I is provided with a strip hole I in a penetrating way, the two connecting lug plates I are respectively and fixedly connected to the top ends of the two angle steels I, and the two connecting lug plates I are respectively provided with a strip hole II in a penetrating way;

the assembly of the ladder stand part I comprises the following specific steps:

a: selecting a plurality of mechanical anchor bolts I as an assembly structure, and connecting part of the mechanical anchor bolts I penetrating through the strip holes I on the two steel plates I at the bottom with an external concrete structure;

b: the other part of the mechanical anchor bolts I penetrate through the strip holes I on the two steel plates I on the upper part to be connected with an external concrete structure, and the assembly of the ladder climbing piece I is completed;

s2: assembling a ladder stand part II, wherein the ladder stand part II is provided with a plurality of sections, each section of the skeleton of the ladder stand part II is composed of two angle steels II, a plurality of round steels II, two steel plates II and two connecting lug plates II, the two angle steels II are arranged in parallel, all the round steels II are fixedly connected between the two angle steels II at equal intervals, the two steel plates II are respectively and fixedly connected to the upper ends of the two angle steels II, the two steel plates II are respectively provided with a long hole III in a penetrating manner, the two connecting lug plates II are respectively and fixedly connected to the top ends of the corresponding angle steels II, and the two connecting lug plates II are respectively provided with a long hole IV in a penetrating manner;

the assembly of the ladder stand part II comprises the following specific steps:

a: selecting a plurality of mechanical anchor bolts II and a plurality of bolts I as an assembly structure, and fixing two angle steels II and the connecting ear plate I in the step S by means of a plurality of bolts I penetrating through the strip holes II in the step S to complete the extension construction of the ladder climbing piece II and the ladder climbing piece I;

b: fixing the angle steel II corresponding to the adjacent ladder climbing piece II with the connecting ear plate II by penetrating the other part of the bolt I through the corresponding strip hole IV, and finishing the extension construction of the adjacent ladder climbing piece II;

c: sequentially connecting all the mechanical anchor bolts II with the external concrete structure by penetrating through the corresponding strip holes III on the steel plate II, and finishing the installation of all the ladder stand parts II and the external concrete structure;

s3: assembling a ladder climbing piece III, wherein a framework of the ladder climbing piece III is composed of two angle steels III, a plurality of round steels III and two steel plates III, the two angle steels III are arranged in parallel, all the round steels III are fixedly connected between the two angle steels III at equal intervals, the two steel plates III are respectively and fixedly connected to the upper ends of the two angle steels III, and the two steel plates III are respectively provided with a strip hole V in a penetrating manner;

the specific steps of assembly of the ladder stand piece III are as follows:

a: selecting a plurality of mechanical anchor bolts III and bolts II, and fixing the connecting ear plate II and the angle steel III by penetrating all the bolts II through the strip holes IV in the step S in sequence to finish the extension construction of the ladder stand piece III and the ladder stand piece II;

b: sequentially connecting all the mechanical anchor bolts III with an external concrete structure by penetrating through the corresponding strip holes V to complete the connection of the ladder climbing piece III and the concrete structure;

in the implementation process, part of the mechanical anchor bolts I are taken firstly to penetrate through the strip holes I on the two steel plates I at the bottom to be connected with the external concrete structure, the other part of the mechanical anchor bolts I are taken to penetrate through the strip holes I on the two steel plates I at the upper part to be connected with the external concrete structure, the ladder stand part I is conveniently and quickly fixed to the inner bottom of the water collecting well (or the vertical well), two angle steel II are fixed with the connecting lug plate I by means of the strip holes II penetrated by the bolts I, the extension construction of the ladder stand part II at the bottommost and the ladder stand part I is completed, the angle steel II corresponding to the adjacent ladder stand part II is fixed with the connecting lug plate II by means of the strip holes IV penetrated by the bolts I at the other part, the extension construction of the adjacent ladder stand part II is completed, the ladder stand parts II with the proper number can be selected for the extension construction according to the depth of the water collecting well (or the vertical well), all the mechanical anchor bolts II are sequentially penetrated through the strip holes III on the corresponding steel plates II to be connected with the external concrete structure Accomplish all cat ladder spare II and external concrete structure's installation, realize the fixed of all cat ladder spare II and sump pit (or shaft) inner wall promptly, then run through rectangular hole IV with the help of all bolt II in proper order and will connect otic placode II and angle steel III fixed, accomplish cat ladder spare III and cat ladder spare II's the construction of connecing long, run through corresponding rectangular hole V with all mechanical crab-bolt III in proper order and be connected with external concrete structure, accomplish cat ladder spare III and concrete structure's being connected, realize cat ladder spare III and sump pit (or shaft) inner wall's fixed promptly, it does benefit to quantization production to be provided with like this, great quickening the site erection speed.

In a specific embodiment, the round steel I in step S1, the round steel II in step S2, and the round steel III in step S3 are both U-shaped, and the specifications of the round steel I in step S1, the round steel II in step S2, and the round steel III in step S3 are the same.

In the above-mentioned realization in-process, round steel III can realize that the foot steps on the effect of climbing, and round steel III is provided with for the U shape simultaneously and does benefit to the realization and climb the better support of in-process people hand, has promoted the stability of climbing indirectly.

In a specific embodiment, the distances between the adjacent round bars I in the step S1 are the same, the distances between the adjacent round bars II in the step S2 are the same, the distances between the adjacent round bars III in the step S3 are the same, and the distance between the topmost round bar I in the step S1 and the bottommost round bar II in the step S2 is equal to the distance between the adjacent round bars I, and the distance between the topmost round bar II in the step S2 and the bottommost round bar III in the step S3 is also equal to the distance between the adjacent round bars I.

In a specific implementation process, the distance mentioned in the upper section can be selected to be 300mm, which is beneficial to realizing the climbing safety.

In a specific embodiment, the round steel I and the round steel II and the round steel III are welded and fixed to the angle steel I in the step S1, the angle steel II in the step S2, and the angle steel III in the step S3 by a welding machine.

In the implementation process, the connection mode is favorable for realizing the stability and the use safety of the steel member structure.

In a specific embodiment, the elongated holes I provided in each steel plate I in the step S1, the elongated holes III provided in each steel plate II in the step S2, and the elongated holes V provided in each steel plate III in the step S3 are all punched by a hole puncher, and all of the elongated holes I and III and the elongated holes V are rectangular and have the same specification.

In the above-mentioned realization process, the setting that utilizes rectangular hole I is convenient for mechanical crab-bolt I and external concrete structure to be connected, thereby be convenient for be connected steel sheet I and sump pit (or shaft) inner wall bottom, be convenient for mechanical crab-bolt II and external concrete structure to be connected with the help of setting up of rectangular hole V, thereby be convenient for be connected steel sheet II and sump pit (or shaft) inner wall bottom, the setting that utilizes rectangular hole IV is convenient for be connected mechanical crab-bolt III and external concrete structure, thereby be convenient for be connected steel sheet III and sump pit (or shaft) inner wall bottom, be convenient for like this with steel member and sump pit (or shaft) fixed.

In a specific embodiment, both ends of each angle steel I in step S1 are fixed to the corresponding steel plate I by using a welding machine, the upper end of each angle steel II in step S2 is also connected to the corresponding steel plate II by using a welding machine, the axial lengths of all the angle steels II in step S2 are the same, the axial lengths of the angle steel I in step S1 are also the same as the axial lengths of the angle steel II in step S2, and the upper end of each angle steel III in step S3 is also fixedly connected to the corresponding steel plate III by using a welding machine.

In a specific embodiment, the size of the bolt I in step S1 is the same as that of the bolt II in step S3, the lower portion of the angle steel II in step S2 and the lower portion of the angle steel III in step S3 are both provided with round holes adapted to the bolt I, and all the round holes are perforated by a hole opener.

In the implementation process, the bolt I penetrates through the strip hole II and the corresponding round hole in the angle steel II to be fixed, so that the adjacent angle steel II or the angle steel II and the angle steel I can be quickly connected and fixed.

In a specific embodiment, the outer walls of the bolt I in the step S1 and the bolt II in the step S3 are tightly provided with lock nuts by a wrench.

In the implementation process, the stability of the bolt I connection can be improved by means of the arrangement of the locking nut.

In a specific embodiment, the elongated holes II in each connecting ear plate I in step S1 and the elongated holes IV in each connecting ear plate II in step S2 are also punched by a hole opener, and all the elongated holes II and the elongated holes IV are arranged in an elliptical shape and have the same specification.

In a specific embodiment, the two connecting ear plates I in the step S1 are further welded and fixed with the two upper steel plates I respectively by a welder, and the connecting ear plates II in the step S2 are also welded and fixed with the steel plates II at the tops of the corresponding angle irons II respectively by a welder.

In the implementation process, the connection mode is utilized to increase the stability of installation of the connection lug plate I, namely the stability and the safety of use of the whole steel member are increased.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some examples of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also derive other related drawings based on these drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a standardized extension construction method for steel members with any length provided by the embodiment of the application;

FIG. 2 is a schematic structural diagram of a ladder stand component I provided in an embodiment of the application;

FIG. 3 is a schematic diagram of a partially enlarged structure in FIG. 2 according to an embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 2 according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a positional relationship between the connecting ear plate I and the elongated hole II according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a ladder climbing member II provided by the embodiment of the application;

fig. 7 is a structural diagram illustrating a positional relationship between the connecting ear plate II and the elongated hole IV according to an embodiment of the present disclosure;

fig. 8 is a schematic structural view of a ladder climbing member III provided in an embodiment of the present application.

In the figure: 10-ladder climbing part I; 110-angle steel I; 120-steel plate I; 130-round steel I; 140-connecting ear plate I; 150-mechanical anchor bolt I; 160-elongated holes II; 170-elongated holes I; 20-ladder climbing part II; 210-angle steel II; 220-round steel II; 230-steel plate II; 240-connecting ear plate II; 250-mechanical anchor bolt II; 260-bolt I; 270-elongated holes III; 280-elongated holes IV; 290-round hole; 30-ladder climbing members III; 310-angle steel III; 320-round steel III; 330-Steel plate III; 340-bolt II; 350-long hole V; 360-mechanical anchor bolt III.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Thus, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the referenced apparatus or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first", "second", may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected or detachably connected or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "on" or "under" a first feature means that the first and second features are in direct contact, and that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, a first feature "on," "above," and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

referring to fig. 1 to 5, S1: the equipment of cat ladder spare I10, the skeleton of cat ladder spare I10 comprises two by angle steel I110, steel sheet I120 four, round steel I130 a plurality of and connection otic placode I140, and in this embodiment, cat ladder spare I10's whole length is 1.2m, also is exactly the cat ladder first section, and its axial length is 1.2 m. Two angle irons I110 are arranged in parallel, and in the present embodiment, each angle iron I110 has a size of 50 × 50 × 6. And between a plurality of round steel I130 equidistance fixed connection to two angle steel I110, in this embodiment, 20mm is selected to every round steel I130, and the interval between the adjacent round steel I130 sets up to 300 mm. The four steel plates I120 are respectively and fixedly connected to two ends of the corresponding angle iron I110, and each steel plate I120 is provided with a long hole I170 in a penetrating manner, in this embodiment, the size of each steel plate I120 is 150 × 150 × 8, and the size of each long hole I170 is set to be 45 × 10 mm. Two connect otic placodes I140 respectively fixed connection to two angle steel I110 tops, and all run through on two connect otic placodes I140 and have seted up rectangular hole II 160.

The specific steps of assembling the ladder stand part I10 are as follows:

a: selecting a plurality of mechanical anchor bolts I150 as an assembly structure, and connecting part of the mechanical anchor bolts I150 penetrating through the strip holes I170 on the two steel plates I120 at the bottom with an external concrete structure; b: and (3) taking the other parts of the mechanical anchor bolts I150 to penetrate through the strip holes I170 on the two steel plates I120 at the upper part to be connected with an external concrete structure, and finishing the assembly of the ladder climbing component I10.

Please refer to fig. 1, 6, and 7, S2: the equipment of cat ladder piece II 20, cat ladder piece II 20 is provided with a plurality of sections, and every section cat ladder piece II 20's skeleton comprises angle steel II 210 two, round steel II 220 a plurality of, steel sheet II 230 two and engaging lug board II 240 two, and in this embodiment, all cat ladder pieces II 20 are cat ladder standard extension section, and its axial length also is 1.2m, according to cat ladder demand height, the unlimited number of mountable cat ladder piece II 20. Two angle irons II 210 are arranged in parallel, and in the present embodiment, each angle iron II 210 is set to have a size of 50 × 50 × 6. All round steel II 220 equidistance fixed connection are between two angle steel II 210, and two steel sheet II 230 are fixed connection respectively to the upper end of two angle steel II 210, and run through respectively on two steel sheet II 230 and seted up rectangular hole III 270, and in this embodiment, the size of steel sheet II 230 is 150X 8, and the size of rectangular hole III 270 is 30X 12 mm. Two connect otic placodes II 240 respectively fixed connection to the angle steel II 210 top that corresponds, and all run through on two connect otic placodes II 240 and seted up rectangular hole IV 280, wherein, rectangular hole IV 280 size selection is 45 x 10 mm.

The assembly steps of the ladder stand part II 20 are as follows:

a, a plurality of mechanical anchors II 250 and a plurality of bolts I260 are selected as the assembly structure, and in the present embodiment, all bolts I260 and bolts II 340 are selected to be 4M8 bolts. Fixing two angle irons II 210 and the connecting ear plate I140 in the step S1 by penetrating a plurality of bolts I260 through the strip holes II 160 in the step S1, and completing the extension construction of the ladder climbing piece II 20 and the ladder climbing piece I10; b: the angle iron II 210 corresponding to the adjacent ladder climbing piece II 20 is fixed with the connecting ear plate II 240 by penetrating the other part of the bolt I260 through the corresponding strip hole IV 280, and the lengthening construction of the adjacent ladder climbing piece II 20 is completed, so that the effect of infinite rapid quantitative production is achieved.

Please refer to fig. 1 and 8, S3: the assembly of cat ladder spare III 30, the skeleton of cat ladder spare III 30 comprises two angle steel III 310, round steel III 320 a plurality of and steel sheet III 330 two, and wherein, cat ladder spare III 30 is the nonstandard extension section of cat ladder, and its axial length sets up to 0.9m in this embodiment, and it still can divide into 0.3m, 0.6m modulus according to actual demand. The two angle steels III 310 are arranged in parallel, in the embodiment, the size of the angle steel III 310 is 50 multiplied by 6, all round steel III 320 are fixedly connected between the two angle steels III 310 at equal intervals, and the size of the round steel III 320 is 20 mm. The two steel plates III 330 are respectively and fixedly connected to the upper ends of the two angle steels III 310, and the two steel plates III 330 are respectively provided with a long hole V350 through the two steel plates III 330, in this embodiment, the size of the steel plate III 330 is set to 150 × 150 × 8, and the size of the long hole V350 is set to 30 × 12 mm.

The specific steps of assembling the ladder stand piece III 30 are as follows:

a: selecting a plurality of mechanical anchor bolts III 360 and bolts II 340, sequentially penetrating all the bolts II 340 through the strip holes IV 280 in the step S2 to fix the connecting lug plate II 240 and the angle steel III 310, and completing the extension construction of the ladder climbing piece III 30 and the ladder climbing piece II 20, b: and sequentially connecting all the mechanical anchor bolts III 360 with the external concrete structure by penetrating through the corresponding strip holes V350 to complete the connection of the ladder climbing piece III 30 and the concrete structure.

With reference to fig. 1 to 8, in a specific setting, the distances between the adjacent round steel I130 in the step S1 are the same, the distances between the adjacent round steel II 220 in the step S2 are the same, the distances between the adjacent round steel III 320 in the step S3 are the same, and the distance between the topmost round steel I130 and the bottommost round steel II 220 in the step S1 is equal to the distance between the adjacent round steel I130, and the distance between the topmost round steel II 220 and the bottommost round steel III 320 in the step S2 is also equal to the distance between the adjacent round steel I130, wherein the round steel III 320 can realize a foot-stepping effect, and meanwhile, the round steel III 320 is U-shaped, which is beneficial to realize better holding of a hand during a climbing process, and indirectly improves the climbing stability. Meanwhile, the distance can be 300mm, climbing safety is facilitated, and the total number of the round steel I130, the round steel II 220 and the round steel III 320 is 16. The round steel I130, the round steel II 220 and the round steel III 320 are respectively welded and fixed with the angle steel I110 in the step S1, the angle steel II 210 in the step S2 and the angle steel III 310 in the step S3 by means of a welding machine, and the connection mode is favorable for realizing the stability and the use safety of the steel member structure.

In the specific setting, the strip hole I170 of each steel plate I120 in the step S1, the strip hole III 270 of each steel plate II 230 in the step S2, and the strip hole V350 of each steel plate III 330 in the step S3 are all punched through a hole puncher, all the strip holes I170, the strip holes III 270, and the strip holes V350 are arranged in a rectangular shape and have the same specification, wherein the arrangement of the strip hole I170 is used for facilitating the connection of the mechanical anchor bolt I150 with the external concrete structure, thereby facilitating the connection of the steel plate I120 with the bottom of the inner wall of the water collecting well (or the shaft), the arrangement of the strip hole V350 is used for facilitating the connection of the mechanical anchor bolt II 250 with the external concrete structure, thereby facilitating the connection of the steel plate II 230 with the bottom of the inner wall of the water collecting well (or the shaft), and the arrangement of the strip hole IV 280 is used for facilitating the connection of the mechanical anchor bolt III 360 with the external concrete structure, thereby facilitating the connection of the steel plate III 330 with the bottom of the inner wall of the sump (or shaft) and thus facilitating the fixation of the steel member with the sump (or shaft).

When specifically setting up, the both ends of every angle steel I110 in step S1 all adopt the welding machine to fix with corresponding steel sheet I120, the upper end of every angle steel II 210 in step S2 also all adopts the welding machine to be connected with corresponding steel sheet II 230, just all angle steel II 210 'S axis length is the same in step S2, angle steel I110 in step S1 with angle steel II 210' S in step S2 axis is also the same, the upper end of every angle steel III 310 in step S3 also all adopts welding machine and corresponding steel sheet III 330 fixed connection, sets up like this and can increase the stability when this application uses.

When the steel angle quick lengthening device is specifically arranged, the specifications of the bolt I260 in the step S1 and the bolt II 340 in the step S3 are the same, the lower portion of the steel angle II 210 in the step S2 and the lower portion of the steel angle III 310 in the step S3 are both provided with round holes 290 matched with the bolt I260, and all the round holes 290 are punched through the hole digger, wherein the bolt I260 penetrates through the long holes II 160 and the round holes 290 on the corresponding steel angle II 210 to be fixed, so that the adjacent steel angle II 210 or the steel angle II 210 and the steel angle I110 can be quickly jointed and fixed, and the steel angle quick lengthening device is favorable for the on-site quick lengthening construction according to needs. And the outer walls of the bolt I260 in the step S1 and the bolt II 340 in the step S3 are both provided with lock nuts through tightening of a wrench, and the connection stability of the bolt I260 can be improved by means of the arrangement of the lock nuts.

At the time of specific setting, the elongated hole II 160 on each connecting ear plate I140 in step S1 and the elongated hole IV 280 on each connecting ear plate II 240 in step S2 are both punched by a hole opener, all the elongated holes II 160 and the elongated holes IV 280 are arranged in an elliptical shape and have the same specification, the two connecting ear plates I140 in step S1 are further welded and fixed with the two upper steel plates I120 by a welding machine, and the connecting ear plates II 240 in step S2 are further welded and fixed with the corresponding steel plates II 230 on the tops of the angle irons II 210 by a welding machine, wherein the connection manner is utilized to facilitate increasing the stability of installation of the connecting ear plates I140, that is, the stability and safety of use of the whole steel member are increased.

It should be noted that, the above construction process only uses 16 round steels I130, II 220 and III 320, the adjacent distance is 300mm, the axial length of the ladder stand piece I10 and the ladder stand piece II 20 is 1.2m, the ladder stand piece I10 and the ladder stand piece II 20 of 300mm and 1.2m can be replaced at will according to actual requirements, and all the above steel members can be replaced by similar materials and forms.

The working principle is as follows: firstly, part of mechanical anchor bolts I150 are used to penetrate through the strip holes I170 on the two steel plates I120 at the bottom to be connected with an external concrete structure, then the other part of mechanical anchor bolts I150 are used to penetrate through the strip holes I170 on the two steel plates I120 at the upper part to be connected with the external concrete structure, the ladder climbing piece I10 is conveniently and quickly fixed to the inner bottom of a water collecting well (or a vertical well), two angle steels II 210 are fixed with the connecting ear plate I140 by means of the strip holes II 160 penetrated by a plurality of bolts I260, the extension construction of the bottommost ladder climbing piece II 20 and the ladder climbing piece I10 is completed, the angle steels II 210 corresponding to the adjacent ladder climbing pieces II 20 are fixed with the connecting ear plates II 240 by means of the corresponding strip holes IV 280 penetrated by the other part of bolts I260, the extension construction of the adjacent ladder climbing pieces II 20 is completed, and the appropriate number of ladder climbing pieces II 20 can be selected for extension construction according to the depth of the water collecting well (or the vertical well), sequentially connecting all the mechanical anchor bolts II 250 with the external concrete structure by penetrating through the corresponding strip holes III 270 on the steel plates II 230 to complete the installation of all the ladder stand parts II 20 and the external concrete structure, namely, all the ladder climbing pieces II 20 are fixed with the inner wall of a water collecting well (or a vertical well), then the connecting ear plates II 240 and the angle steels III 310 are fixed by penetrating all the bolts II 340 through the strip holes IV 280 in sequence, the extension construction of the ladder climbing pieces III 30 and the ladder climbing pieces II 20 is completed, all the mechanical anchor bolts III 360 are connected with an external concrete structure by penetrating the corresponding strip holes V350 in sequence, the connection of the ladder climbing pieces III 30 and the concrete structure is completed, the ladder climbing piece III 30 is fixed with the inner wall of the water collecting well (or the vertical well), so that quantitative processing and production are facilitated, and the field installation speed is greatly increased.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A standardized extension construction method for steel members with any length is characterized by comprising the following steps:

s1: the assembly of the ladder climbing piece I (10), the framework of the ladder climbing piece I (10) is composed of two angle steels I (110), four steel plates I (120), two round steels I (130) and two connecting lug plates I (140), the two angle steels I (110) are arranged in parallel, a plurality of round steels I (130) are fixedly connected between the two angle steels I (110) at equal intervals, the four steel plates I (120) are respectively and fixedly connected to two ends of the corresponding angle steels I (110), each steel plate I (120) is provided with a long-strip-shaped hole I (170) in a penetrating mode, the two connecting lug plates I (140) are respectively and fixedly connected to the top ends of the two angle steels I (110), and the two connecting lug plates I (140) are provided with long-strip-shaped holes II (160) in a penetrating mode;

the assembly steps of the ladder stand part I (10) are as follows:

a: selecting a plurality of mechanical anchor bolts I (150) as an assembly structure, and connecting a part of the mechanical anchor bolts I (150) penetrating through the strip holes I (170) on the two steel plates I (120) at the bottom with an external concrete structure;

b: the rest part of the mechanical anchor bolts I (150) penetrate through the strip holes I (170) on the two steel plates I (120) on the upper part to be connected with an external concrete structure, and the ladder climbing piece I (10) is assembled;

s2: the assembly of the ladder climbing piece II (20), the ladder climbing piece II (20) is provided with a plurality of sections, the framework of each section of the ladder climbing piece II (20) is composed of two angle steels II (210), a plurality of round steels II (220), two steel plates II (230) and two connecting ear plates II (240), the two angle steels II (210) are arranged in parallel, all the round steels II (220) are fixedly connected between the two angle steels II (210) in equal distance, the two steel plates II (230) are respectively and fixedly connected to the upper ends of the two angle steels II (210), and two steel plates II (230) are respectively provided with a strip hole III (270) in a penetrating way, two connecting ear plates II (240) are respectively fixedly connected to the top ends of the corresponding angle steels II (210), and the two connecting ear plates II (240) are both provided with a strip hole IV (280) in a penetrating way;

the assembly of the ladder stand part II (20) comprises the following specific steps:

a, selecting a plurality of mechanical anchor bolts II (250) and a plurality of bolts I (260) as an assembly structure, and fixing two angle steels II (210) and the connecting lug plate I (140) in the step S1 by the aid of the bolts I (260) penetrating through the strip holes II (160) in the step S1 to complete the extension construction of the ladder climbing piece II (20) and the ladder climbing piece I (10);

b: fixing the angle steel II (210) corresponding to the adjacent ladder climbing piece II (20) and the connecting ear plate II (240) by penetrating the other part of the bolt I (260) through the corresponding strip hole IV (280), and finishing the extension construction of the adjacent ladder climbing piece II (20);

c, sequentially connecting all the mechanical anchor bolts II (250) with the external concrete structure through the strip holes III (270) on the corresponding steel plates II (230) to complete the installation of all the ladder climbing pieces II (20) and the external concrete structure;

s3: assembling the ladder climbing piece III (30), wherein a framework of the ladder climbing piece III (30) comprises two angle steels III (310), a plurality of round steels III (320) and two steel plates III (330), the two angle steels III (310) are arranged in parallel, all the round steels III (320) are fixedly connected between the two angle steels III (310) at equal intervals, the two steel plates III (330) are respectively and fixedly connected to the upper ends of the two angle steels III (310), and the two steel plates III (330) are respectively provided with a long-strip hole V (350) in a penetrating manner;

the specific steps of assembling the ladder climbing piece III (30) are as follows:

a: selecting a plurality of mechanical anchor bolts III (360) and a plurality of bolts II (340), and sequentially fixing the connecting lug plate II (240) and the angle steel III (310) by means of all the bolts II (340) penetrating through the strip holes IV (280) in the step S2 to complete the extension construction of the ladder climbing piece III (30) and the ladder climbing piece II (20);

b: and sequentially connecting all the mechanical anchor bolts III (360) with an external concrete structure by penetrating through the corresponding strip holes V (350) to complete the connection of the ladder climbing piece III (30) and the concrete structure.

2. The standardized elongation construction method for the steel member with any length according to claim 1, wherein the round steel I (130) in the step S1, the round steel II (220) in the step S2 and the round steel III (320) in the step S3 are all U-shaped, and the specifications of the round steel I (130) in the step S1, the round steel II (220) in the step S2 and the round steel III (320) in the step S3 are the same.

3. A standardized lengthening construction method of steel members with arbitrary lengths according to claim 1, wherein the intervals between the adjacent round bars I (130) in the step S1 are the same, the intervals between the adjacent round bars II (220) in the step S2 are the same, the intervals between the adjacent round bars III (320) in the step S3 are the same, and the intervals between the topmost round bar I (130) and the bottommost round bar II (220) in the steps S1 and S2 are equal to the intervals between the adjacent round bars I (130), and the intervals between the topmost round bar II (220) and the bottommost round bar III (320) in the steps S2 and S3 are also equal to the intervals between the adjacent round bars I (130).

4. The standardized lengthening construction method of any-length steel member according to claim 3, wherein round bars I (130), II (220) and III (320) are welded and fixed to the angle steel I (110) in the step S1, II (210) in the step S2 and III (310) in the step S3 by welding machines.

5. A standardized elongation construction method for steel members of any length according to claim 1, wherein the elongated hole I (170) formed in each steel plate I (120) in the step S1, the elongated hole III (270) formed in each steel plate II (230) in the step S2, and the elongated hole V (350) formed in each steel plate III (330) in the step S3 are perforated by a hole opener, and all the elongated holes I (170), the elongated holes III (270), and the elongated holes V (350) are arranged in a rectangular shape and have the same size.

6. The standardized lengthening construction method of any-length steel members, according to claim 1, characterized in that both ends of each angle steel I (110) in the step S1 are fixed with the corresponding steel plate I (120) by using a welding machine, the upper end of each angle steel II (210) in the step S2 is connected with the corresponding steel plate II (230) by using a welding machine, the axial lengths of all the angle steels II (210) in the step S2 are the same, the axial lengths of the angle steel I (110) in the step S1 and the axial length of the angle steel II (210) in the step S2 are the same, and the upper end of each angle steel III (310) in the step S3 is fixedly connected with the corresponding steel plate III (330) by using a welding machine.

7. The standardized lengthening construction method of any-length steel member according to claim 1, characterized in that bolt I (260) in step S1 and bolt II (340) in step S3 have the same specification, round holes (290) matched with bolt I (260) are formed in the lower portion of angle steel II (210) in step S2 and the lower portion of angle steel III (310) in step S3, and all round holes (290) are perforated through a hole cutter.

8. The standardized lengthening construction method of any-length steel members, according to claim 1, wherein the outer walls of bolt I (260) in step S1 and bolt II (340) in step S3 are each tightly fitted with a locking nut by means of a wrench.

9. A standardized lengthening construction method of any-length steel members, according to claim 1, wherein said elongated holes II (160) of each connecting lug plate I (140) in step S1 and said elongated holes IV (280) of each connecting lug plate II (240) in step S2 are perforated by means of a hole-opening device, and all the elongated holes II (160) and IV (280) are disposed in an elliptical shape and have the same specification.

10. The standardized elongation construction method for the steel members with any length according to claim 1, wherein the two connecting lug plates I (140) in the step S1 are further welded and fixed with the two upper steel plates I (120) respectively through a welding machine, and the connecting lug plates II (240) in the step S2 are further welded and fixed with the steel plates II (230) at the tops of the corresponding angle steels II (210) respectively through a welding machine.