CN213477191U - Large-span strength beam and welding tool - Google Patents

Abstract

The utility model discloses a large-span strength nature roof beam and welding frock, including three segmentation roof beam bodies, segmentation roof beam body one-to-one connects, form linear first strength nature roof beam, first strength nature roof beam includes web and symmetry and the fixed two roof beam pterygoid lamina that set up at web both ends, be provided with first connecting assembly between the adjacent segmentation roof beam body, first connecting assembly includes first connecting plate, be provided with first connecting hole on the web, the both ends of first connecting plate all are provided with the second connecting hole, the second connecting hole at first connecting plate both ends corresponds the first connecting hole on the adjacent two segmentation roof beam bodies respectively, through passing connecting bolt second connecting hole and first connecting hole in proper order and fixed with the nut, the hookup location welded connection between the adjacent segmentation roof beam bodies; the utility model discloses first strength nature roof beam is the super large span roof beam body, and length sets up to about 40 meters, for the transportation of raw and other materials, first strength nature roof beam generally adopts the sectional type structure, installs the setting through segmentation transportation field weld's mode.

Description

Large-span strength beam and welding tool

Technical Field

The utility model relates to a building structure technical field, concretely relates to large-span strength nature roof beam and welding frock.

Background

The reinforced concrete structure is a main form of a steel-concrete composite structure and is a special composite material formed by adding section steel into reinforced concrete. Because the steel core is as the skeleton exists, the ductility of the concrete can be effectively improved, and the anti-seismic performance of the concrete is greatly improved; and the concrete laterally restrains the steel, thereby ensuring the mechanical property of the steel to be exerted and avoiding the steel from exiting the work in advance due to instability. Because of the advantages of high bearing capacity, high rigidity, good fire resistance, good earthquake resistance and the like, the composite material is more and more applied to high-rise buildings and super high-rise buildings in large-span structures and earthquake regions.

To having the super large span structure more than 40 meters, can't adopt the mode of whole transportation to carry out the transportation of structure raw materials, structure raw materials also easily causes the collision interference with other article simultaneously in the installation, is unfavorable for the installation.

In view of the above-mentioned drawbacks, the authors of the present invention have finally obtained the present invention through long-term research and practice.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical defects, the technical proposal adopted by the utility model is that a large-span stiff beam is provided, which comprises three segmented beam bodies, the segmented beam bodies are connected in one-to-one correspondence to form the first stiff beam in a linear shape, the first stiff beam comprises a beam web plate and two beam wing plates which are symmetrically and fixedly arranged at two ends of the beam web plate, a first connecting assembly is arranged between the adjacent segmented beam bodies, the first connecting component comprises a first connecting plate, the beam web plate is provided with a first connecting hole, the two ends of the first connecting plate are respectively provided with a second connecting hole, the second connecting holes at the two ends of the first connecting plate respectively correspond to the first connecting holes on the two adjacent segmented beam bodies, and connecting bolts sequentially penetrate through the second connecting holes and the first connecting holes and are fixed with nuts, and the connecting positions between the adjacent segmented beam bodies are connected in a welding mode.

Preferably, the first stiff beam is provided with T-shaped reinforcing ribs, the T-shaped reinforcing ribs are symmetrically arranged on the two beam wing plates of the first stiff beam, and the beam web plates are vertically arranged.

Preferably, at the connecting position between the adjacent segmented beam bodies, on the connecting end of the segmented beam bodies, one beam wing plate is shorter than the web plate, and the other beam wing plate is longer than the web plate.

Preferably, the segmented beam bodies are arranged in equal length, and two sides of the connecting position of two adjacent segmented beam bodies are provided with lifting hooks for lifting.

Preferably, the welding fixture for the large-span stiff beam comprises two end fixing seats and four connecting fixing seats, the end fixing seats are arranged at two ends of the first stiff beam, and the connecting fixing seats are arranged corresponding to connecting positions of two adjacent segmented beam bodies to ensure that connecting ends of the two adjacent segmented beam bodies are aligned.

Preferably, the end fixing seat and the connecting fixing seat both comprise a U-shaped seat and a bottom support, the U-shaped seat is provided with a rectangular groove, the groove width dimension of the rectangular groove is matched with the width of the beam wing plate of the first stiff beam, the first stiff beam is arranged in the rectangular groove, and the beam web plate of the first stiff beam is vertically arranged.

Preferably, the end support of the end fixing seat is a cuboid frame structure formed by welding profile steel, and the end support connected with the fixing seat is arranged in a height-adjustable structure.

Preferably, the U-shaped seat comprises a bottom straight rod and two limiting rods vertically fixed on the bottom straight rod, an inclined support is further arranged between the limiting rods and the bottom straight rod, and the rectangular groove is formed between the two limiting rods.

Preferably, the end fixing seat is at least provided with 4 bottom extension rods, the bottom extension rods are fixedly arranged on the bottom straight rods, the bottom extension rods and the bottom straight rods are arranged on the same horizontal plane, a plurality of vertically arranged bottom support rods are arranged below the bottom extension rods, bottom fixing frames are fixedly arranged below the bottom support rods, and the bottom fixing frames, the bottom support rods and the bottom extension rods form a cuboid frame structure.

Preferably, the bottom support connected with the fixed seat is provided with an adjusting bolt, the adjusting bolt is vertically arranged and is in threaded connection with the bottom support, and the bottom support is arranged in a contact manner with the bottom plate through the adjusting bolt.

Compared with the prior art, the beneficial effects of the utility model reside in that: 1, the first stiff column with the medium-sized and heterogeneous structure improves the overall strength and the bending resistance of the first stiff column through the arrangement of the T-shaped reinforcing ribs, so that the arrangement of an ultra-large span structure more than 40 meters is more facilitated, and the additional arrangement of a steel structure of a high-rise connecting corridor is facilitated to be ensured; 2, the first stiff beam is a super-large span beam body, the length of the first stiff beam is generally set to be about 40 meters, and the first stiff beam is convenient for raw material transportation and generally adopts a sectional structure and is installed and arranged in a sectional transportation field welding mode; 3, the first stiff column is generally heavy, and in order to ensure the reliable hoisting, the first stiff column is installed in a segmented mode; 4, a high-strength steel structure with a high-altitude connecting corridor is formed by arranging structural single bodies with various structures.

Drawings

FIG. 1 is a structural view of the structural unit;

FIG. 2 is a structural view of the high-strength steel structure with the high-altitude connecting corridor;

FIG. 3 is a structural view of the first stiff beam;

fig. 4 is a structural view of the first stiff beam welding tool;

FIG. 5 is a structural view of the end mount;

FIG. 6 is a structural view of the first stiff column;

FIG. 7 is a schematic cross-sectional view of the first stiff column;

FIG. 8 is a view showing a coupling structure of the first cylinder and the second cylinder;

FIG. 9 is a view of the connection structure of the bottom end of the first column;

FIG. 10 is a view of the attachment structure of the top end of the secondary post;

fig. 11 is a view of a connection structure of the first stiff beam and the first stiff column;

FIG. 12 is a schematic view of the construction at step S2 in the construction method;

fig. 13 is a construction view of step S3 in the construction method;

fig. 14 is a construction view of step S4 in the construction method;

FIG. 15 is a schematic view of the construction at step S5 in the construction method;

fig. 16 is a construction view of step S6 in the construction method;

fig. 17 is a construction view of step S7 in the construction method;

fig. 18 is a construction view of step S8 in the construction method;

fig. 19 is a construction view of step S9 in the construction method;

FIG. 20 is a schematic view showing the overlapping of the stabilized steel sections.

The figures in the drawings represent:

1-a first stiff column; 2-a first stiff beam; 3-a second stiff beam; 4-a second stiff column; 5-a first stiffening beam; 6-a second stiffening beam; 7-a first structural monomer; 8-a second structural monomer; 9-a third structural monomer; 10-a fourth structural monomer; a 11-H shaped body; 12-T type reinforcing ribs; 13-a first cylinder; 14-a second column; 15-adjusting the screw; 16-a mounting plate; 17-an adjusting nut; 18-a fastening nut; 19-a backstop nut; 20-a connecting segment; 21-a segmented beam body; 22-a first connection plate; 23-end fixing seat; 24-connecting a fixed seat; 25-fixing block; 26-connecting blocks; 111-column webs; 112-column wing plate; 121-a transverse plate; 122-connecting edge; 131-a second connecting plate; 132-a third connecting plate; 133-a fourth connecting plate; 134-a first stiffener plate; 135-a second stiffening plate; 231-bottom straight rod; 232-a limiting rod; 233-inclined support; 234-bottom extension rod; 235-bottom support bar; 236-bottom fixing frame.

Detailed Description

The above and further features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

Example one

The high-strength steel structure assembly comprises a first stiff column 1 and a first stiff beam 2, as shown in fig. 1, fig. 1 is a structural view of the structural unit; the first stiff columns 1 are arranged in pairs, the two first stiff columns 1 are connected through a plurality of first stiff beams 2 located at different heights to form a structural single body, the first stiff beams 2 on the structural single bodies are in one-to-one correspondence and are arranged on the same horizontal plane, and the first stiff beams 2 located on the same horizontal plane are used for forming floor boards of a high-rise building.

Preferably, the cross section of the first stiff beam 2 is arranged to be H-shaped, the first stiff column 1 includes an H-shaped main body 11 and four T-shaped reinforcing ribs 12, and the T-shaped reinforcing ribs 12 are symmetrically and fixedly arranged on the H-shaped main body 11 in pairs to reinforce the overall strength of the first stiff column 1.

Specifically, the H-shaped main body 11 includes a column web 111 and two column wing plates 112 symmetrically and fixedly disposed at two ends of the column web 111, the two T-shaped reinforcing ribs 12 are symmetrically disposed on the two column wing plates 112, the other two T-shaped reinforcing ribs 12 are symmetrically disposed at two sides of the column web 111, and the end portion of the first stiff beam 2 is fixedly connected to the T-shaped reinforcing ribs 12 disposed on the column wing plates 112. The T-shaped reinforcing rib 12 includes a transverse plate 121 and a connecting rib 122, wherein an end edge of the connecting rib 122 is fixedly disposed on a central line of the transverse plate 121, and the other end edge is fixedly connected to the H-shaped main body 11. The connecting ribs 122 reinforce the bending resistance of the H-shaped body 11, and the transverse plate 121 further improves the structural stability of the connecting ribs 122, and provides a larger contact area for connecting with the first stiff beam 2.

Different structures first strength nature post 1 passes through the setting of T type strengthening rib 12 improves first strength nature post 1's bulk strength and bending resistance to more be favorable to having the setting of super large span structure more than 40 meters, and be favorable to guaranteeing that the steel construction of high-rise connection corridor adds establishes.

Preferably, the high-strength steel structure assembly further comprises a second stiff beam 3, the second stiff beam 3 is connected with the first stiff beams 2 between the adjacent structural units, a latticed floor plate steel structure frame is formed through the connection between the first stiff beams 2 and the second stiff beams 3, and the latticed floor plate steel structure frame is more stable in structure, so that a steel structure of a high-rise connecting corridor can be conveniently arranged on the floor plate steel structure frame.

Example two

According to the present embodiment, a specific high-strength steel structural component arrangement is explained.

As shown in fig. 2, fig. 2 is a structural view of the high-strength steel structure with the high-altitude connecting corridor; in this embodiment, a total of 7 pairs of the first stiff columns 1 are provided, and a first layer beam, a second layer beam, a third layer beam and a fourth layer beam having different heights are sequentially provided from the bottom plate to the top, the first layer beam is provided with 7 first stiff beams 2, the second layer beam is provided with 1 first stiff beams 2, the third layer beam is provided with 4 first stiff beams 2, and the fourth layer beam is provided with 5 first stiff beams 2.

In this embodiment, the connection corridor is provided on one side of the main building, and the main building includes a main body portion where the connection corridor is not provided and a connection portion where the connection corridor is provided, and generally, the connection corridor is provided on a top end of the connection portion.

Specifically, the single structure body comprises a first single structure body 7, a second single structure body 8, a third single structure body 9 and a fourth single structure body 10, wherein the first single structure body 7 comprises the first layer of beam and the fourth layer of beam, the second single structure body 8 comprises the first layer of beam, the third layer of beam and the fourth layer of beam, the third single structure body 9 comprises the first layer of beam, the third layer of beam, and the fourth single structure body 10 comprises the first layer of beam, the second layer of beam and the third layer of beam.

The first single structural body 7 is provided in plurality, and in the present embodiment, the first single structural body 7 is provided in 3, and the first single structural body 7 and the second single structural body 8 constitute the main body portion. The number of the second structure single bodies 8 is at least 2, and the second structure single bodies 8 are the main body parts and the connection areas between the connection parts and are used for realizing stable connection of steel structures between the main body parts and the connection parts. Third structure monomer 9 sets up second structure monomer 8 with between the fourth structure monomer 10, third structure monomer 9 is used for forming the connection corridor that has the roof of choosing high, and is general, the roof height in connection corridor is greater than the roof height of main part, and for reasons such as pleasing to the eye, the connection corridor generally sets up to the printing opacity glass roof, the extending direction in connection corridor not necessarily with the extending direction of main building is the same. The fourth structural unit 10 is disposed at the very edge of the main building, and generally, the connecting corridor extends outwards to form an extension structure and is connected with the adjacent main building, and the fourth structural unit 10 is used for reinforcing the bottom support of the connecting corridor so as to reinforce the outwards extending structural strength of the connecting corridor.

First strength nature post 1 forms the whole steel construction braced frame of main building, the fourth floor roof beam forms the building top roofing structure of main part, second strength nature roof beam 3 with the third floor roof beam forms the bottom floor board steel structure frame in connection corridor, the second floor roof beam is located the junction is apart from a pair of the main part is farthest first strength nature post 1 for strengthen the bottom sprag in connection corridor, be convenient for connect the corridor and outwards extend and form epitaxial structure. The two pairs of first stiff columns 1 shared by the main body part and the connecting parts are simultaneously provided with the first layer of beams, the third layer of beams and the fourth layer of beams, and are used for realizing the connection of steel structures between the main body part and the connecting parts.

The first stiff columns 1 on the third structural unit 9 have a larger size than the first structural unit 7, the second structural unit 8 and the fourth structural unit 10, so as to facilitate strong support of the additional connecting corridor steel structure.

The second stiff beam 3 is arranged on the second structure single body 8, the third structure single body 9 and the fourth structure single body 10, the second stiff beam 3 is connected with the third layer of beam, the fourth structure single body 10 is arranged on one side of the third structure single body 9, the second stiff beam 3 extends outwards from the third layer of beam, and the extension structure of the connecting corridor is convenient to arrange. The second stiff beams 3 are all arranged in a mutually parallel linear distribution.

And second stiff columns 4 are arranged on the second stiff beams 3, the second stiff columns 4 are vertically arranged on the second stiff beams 3, and powerful support is formed on the top structures of the connecting corridors through the second stiff beams 3.

First stiffening beams 5 are fixedly connected between the second stiffening columns 4, and the first stiffening beams 5 are connected with the adjacent second stiffening columns 4, so that the second stiffening columns 4 form an integral structure. The second stiffening columns 4 are further provided with second stiffening beams 6, and the second stiffening beams 6 are connected with the second stiffening columns 4 and the fourth layer of beams or the first stiffening columns 1, so that a stable connecting corridor steel structure is formed. Preferably, the first reinforcement beam 5 and the second reinforcement beam 6 are arranged in a linear distribution parallel to each other.

EXAMPLE III

FIG. 3 is a structural view of the first stiff beam, as shown in FIG. 3; the first stiff beam 2 is a super-large span beam body, the length of the first stiff beam is generally set to be about 40 meters, the first stiff beam 2 is convenient for raw material transportation, and the first stiff beam is generally of a sectional type structure and is installed and arranged in a sectional transportation field welding mode.

Therefore, in general, the first stiff beam 2 includes three segmented beam bodies 21, and the segmented beam bodies 21 are connected in a one-to-one correspondence, thereby forming the first stiff beam 2 in a straight line shape. First strength nature roof beam 2 includes web and symmetry and fixed setting two roof beam pterygoid lamina at web both ends are adjacent be provided with first connecting assembly between the segmentation roof beam body 21, it is concrete, first connecting assembly includes first connecting plate 22, be provided with first connecting hole on the web, first connecting plate 22's both ends all are provided with the second connecting hole, first connecting plate 22 both ends the second connecting hole corresponds adjacent two respectively on the segmentation roof beam body 21 first connecting hole is through passing connecting bolt in proper order the second connecting hole with first connecting hole is fixed with the nut, thereby realizes the preliminary fixation between the segmentation roof beam body 21. After the pre-fixing is completed, the pre-fixed first stiff beam 2 is subjected to straightening confirmation, and after the straightening is completed, the connecting position between the adjacent segmented beam bodies 21 is welded.

Preferably, the first stiff beam 2 is also provided with T-shaped reinforcing ribs 12, and since the first stiff beam is generally only subjected to vertical downward loads such as gravity, the T-shaped reinforcing ribs 12 are symmetrically arranged on the two beam wing plates of the first stiff beam 2, and the beam web plates are vertically arranged during installation.

On the hookup end of the segmentation roof beam body 21 of hookup location department, one the beam wing board shortfall in web, another the beam wing board is longer than web, through adjacent two shorter on the segmentation roof beam body 21 web and longer connection between the web to form the fixed-position joint structure, be convenient for guarantee two straightness accuracy after the segmentation roof beam body 21 connects increases welding length simultaneously and improves two welding stability between the segmentation roof beam body 21.

Generally, the segmented beam bodies 21 are arranged in equal length, so that the first stiff beam 2 can be integrally hoisted conveniently. In the hoisting process, because the first stiff beam 2 is a super-large span beam body, a double-crane hoisting is generally adopted, the lifting hooks hoisted by a single crane are positioned at two adjacent sides of the connecting position of the segmented beam body 21, the segmented beam body 21 is arranged at equal length so as to facilitate the arrangement of the lifting hook position, thereby facilitating the realization of stable hoisting.

As shown in fig. 4, fig. 4 is a structural view of the first stiff beam welding tool; the first stiff beam 2 is welded in a field splicing mode, and the segmented beam bodies 21 are welded in an alignment mode by adopting a welding tool, the welding tool comprises two end fixing seats 23 and four connecting fixing seats 24, the end fixing seats 23 are arranged at two ends of the first stiff beam 2, the connecting fixing seats 24 are arranged corresponding to connecting positions of two adjacent segmented beam bodies 21, and the connecting ends of the two adjacent segmented beam bodies 21 are ensured to be aligned.

The end fixing seat 23 and the connecting fixing seat 24 all include a U-shaped seat and a bottom support, the U-shaped seat is provided with a rectangular groove, the groove width dimension of the rectangular groove is matched with the width of the beam wing plate of the first stiff beam 2, the first stiff beam 2 is arranged in the rectangular groove, and the beam web plate of the first stiff beam 2 is vertically arranged.

Since the first stiff beams 2 are spliced and welded on site, it is not possible to ensure that the entire bottom surface is at the same height in a welding area of an ultra-long span, and therefore, preferably, the bottom support of the end fixing seat 23 is a rectangular frame structure formed by welding profile steel, the bottom support of the connecting fixing seat 24 is arranged in a height-adjustable structure, the position and the height size of the end fixing seat 23 are determined by the two first stiff columns 1 in pairs, and the end fixing seat 23 is bounced on the bottom plate by the two end fixing seats 23 at determined positions, so that the end fixing seat 23 and the connecting fixing seat 24 are both arranged on the same straight line.

It is worth pointing out that the bottom supports of the connecting fixing seats 24 and the end fixing seats 23 may be set to be fixed heights, but specific heights may be set to be different heights according to actual needs, so as to ensure that the connecting fixing seats 24 and the end fixing seats 23 placed on the bottom plate horizontally support the first stiff beams 2.

Through passing connecting bolt in proper order the second connecting hole with first connecting hole and fixed with the nut, realize pre-fixing between the segmentation roof beam body 21, adjust on each hookup location connect fixing base 24 the end support height, thus it is right segmentation roof beam body 21 carries out the leveling setting. After welding, the connecting bolts can be replaced by high-strength bolts, and the segmented beam body 21 and the first connecting plate 22 are locked by the high-strength bolts.

As shown in fig. 5, fig. 5 is a structural view of the end fixing seat; specifically, the U-shaped seat comprises a bottom straight rod 231 and two limiting rods 232 vertically fixed on the bottom straight rod 231, an inclined support 233 is further arranged between the limiting rods 232 and the bottom straight rod 231, and the rectangular groove is formed between the two limiting rods 232.

End fixing base 23 is provided with 4 end extension rod 234 at least, end extension rod 234 is fixed to be set up on end straight-bar 231, end extension rod 234 with end straight-bar 231 sets up on same horizontal plane, end extension rod 234 below is provided with the end support pole 235 of a plurality of vertical settings, end support pole 235 below is fixed to be provided with end mount 236, end mount 236 end support pole 235 with end extension rod 234 forms cuboid frame structure end support.

Preferably, the bottom support of the connecting fixing seat 24 is provided with an adjusting bolt, the adjusting bolt is vertically arranged and is in threaded connection with the bottom support, the bottom support is arranged in a contact manner with the bottom plate through the adjusting bolt, and the distance between the bottom support and the bottom plate can be adjusted by rotating the adjusting bolt, so that the height of the connecting fixing seat 24 is adjusted.

Example four

As shown in fig. 6 to 10, the first stiff column 1 generally has a large weight, and in order to ensure reliable hoisting, the first stiff column 1 is installed in a segmented manner, so that the first stiff column 1 includes a first column body 13 and a second column body 14, the first column body 13 is connected with a bottom plate, and the second column body 14 is fixedly connected with the upper end of the first column body 13.

Preferably, the length of the first column 13 is generally set to be 7m to 9m, the length of the second column 14 is generally set to be 18m to 24m, and the joint of the first column 13 and the bottom plate is connected to the second column 14 after concrete is coated to 1.3 m. The first column body 13 with the length of 7 m-9 m is low in weight, so that the bottom of the hoisted first column body is leveled, and the verticality between the whole first stiff column 1 and the bottom plate is guaranteed.

Generally, correspond on the bottom plate first cylinder 13 is provided with 4 at least adjusting screw 15, adjusting screw 15 with the central line annular distribution of first cylinder 13, first cylinder 13 bottom is provided with mounting panel 16, be provided with the regulation hole on the mounting panel 16, adjusting screw 15 one-to-one sets up in the regulation hole, and every adjusting screw 15 equal threaded connection has an adjusting nut 17, a fastening nut 18 and a stopping nut 19, adjusting nut 17 sets up the mounting panel 16 below, fastening nut 18 with stopping nut 19 sets up the mounting panel 16 top, fastening nut 18 with the centre gripping of adjusting nut 17 the mounting panel 16 is with fixed the mounting panel 16 position.

Preferably, a backing plate is disposed between the fastening nut 18 and the mounting plate 16.

The vertical degree of the first column 13 and the base plate is adjusted by adjusting the position of the adjusting nut 17 and fixing the mounting plate 16 by the fastening nut 18 and the retaining nut 19, and the vertical arrangement of the first stiff columns 1 is further set.

The first cylinder 13 and the second cylinder 14 are both provided with second connecting plates 131, the second connecting plates 131 between the first cylinder 13 and the second cylinder 14 are connected through third connecting plates 132, the second connecting plates 131 are provided with third connecting holes, the third connecting plates 132 are provided with fourth connecting holes, and connecting bolts sequentially penetrate through the third connecting holes and the fourth connecting holes and are fixed with nuts, so that pre-fixing between the first cylinder 13 and the second cylinder 14 is realized. After the pre-fixing is completed, the pre-fixed first stiff column 1 is subjected to straightening confirmation, and after the straightening is completed, the connecting position between the first column body 13 and the second column body 14 is welded. After the welding is completed, the connecting bolts may be replaced with high-strength bolts, and the second connecting plate 131 and the third connecting plate 132 may be locked by the high-strength bolts.

Generally, the second connecting plate 131 is vertically disposed on the transverse plate 121 of the T-shaped reinforcing rib 12, two third connecting plates 132 are disposed corresponding to the two mutually connected second connecting plates 131, and the two third connecting plates 132 are symmetrically disposed on two sides of the second connecting plate 131, so as to ensure stable connection of the two second connecting plates 131.

EXAMPLE five

As shown in fig. 11, fig. 11 is a view of a connection structure of the first stiff beam and the first stiff column; the first stiff column 1 is fixedly provided with a connecting section 20, the connecting section 20 is arranged on the T-shaped reinforcing rib 12 of the column wing plate 112, the first stiff column 1 is connected with the end of the first stiff beam 2 through the connecting section 20, and generally, the connecting section 20 is arranged in an H-shaped structure having the same cross section as that of the first stiff beam 2.

The connecting section 20 is provided with at least 6 fifth connecting holes, the first stiff beam 2 is provided with sixth connecting holes corresponding to the fifth connecting holes, the connecting section 20 and the first stiff beam 2 are connected through a fourth connecting plate 133, the fourth connecting plate 133 is provided with seventh connecting holes, connecting bolts sequentially penetrate through the fifth connecting holes and the seventh connecting holes and are fixed with nuts, so that the connection section 20 and the fourth connecting plate 133 are pre-fixed, and connecting bolts sequentially penetrate through the sixth connecting holes and the seventh connecting holes and are fixed with nuts, so that the first stiff beam 2 and the fourth connecting plate 133 are pre-fixed, so that the connection section 20 and the first stiff beam 2 are pre-connected. After the pre-fixing is completed, the connection section 20 and the first stiff beam 2 after the pre-fixing are straightened and confirmed, and after the straightening is completed, the connection position between the connection section 20 and the first stiff beam 2 is welded. After welding, the connecting bolts may be replaced with high-strength bolts, and the connecting segments 20, the first stiff beams 2, and the fourth connecting plates 133 are locked by the high-strength bolts.

Generally, corresponding to the connecting section 20, a first reinforcing plate 134 is disposed on the first stiff column 1, and the first reinforcing plate 134 is disposed between the H-shaped main body 11 and the T-shaped reinforcing rib 12 for reinforcing the structural strength of the corresponding position.

If the first stiff beam 2 is only set to be H-shaped and the T-shaped reinforcing rib 12 is not provided, the connecting section 20 is provided with a second reinforcing plate 135, the second reinforcing plate 135 is a T-shaped structure formed by mutually and vertically connecting a first straight plate and a second straight plate, the first straight plate is vertically connected to the first stiff column 1, and the second straight plate is vertically connected to the connecting section 20, so that the connecting strength between the connecting section 20 and the first stiff column 1 is enhanced. If the first stiff beam 2 is provided with the T-shaped reinforcing ribs 12, the T-shaped reinforcing ribs 12 are correspondingly provided on the connecting section 20.

EXAMPLE six

As shown in fig. 12 to 19, the construction method of the high strength steel structure assembly according to the second embodiment includes the steps of:

s1, constructing a bottom plate, and pouring the adjusting screw rod 15 on the bottom plate;

s2, installing the first column 13 on the third structural unit 9 and the fourth structural unit 10 corresponding to the adjusting screw 15;

s3, installing the third structural unit 9 and the second column 14 of the fourth structural unit 10 in the step S2 to form four first stiff columns 1;

s4, arranging stable section steel between every two adjacent first stiff columns 1;

s5, sequentially mounting the first stiff beams 2 on the third structural unit 9 and the fourth structural unit 10 in the step S2;

s6, arranging the two first stiff beams 2 on the same horizontal plane on the stabilizing section steel for fixing;

s7, providing the second stiff beam 3, and providing the second stiff column 4 and the first and second stiffening beams 5 and 6 on the second stiff column 4 on the second stiff beam 3;

s8, according to the steps S2-S7, arranging the rest of the third structural single units 9 and the second structural single units 8 so as to form the connection part;

s9, according to the steps S2-S6, arranging the first structural unit 7 so as to constitute the main body part;

and S10, removing the stabilizing section steel after the pouring of the connecting part and the main body part is finished.

In step S2, the first column 13 is hoisted, and the hoisting point is set at the connection lug plate welded in advance. In order to prevent the lifting lugs from deforming during lifting, a special lifting clamp is adopted, and a single-machine rotation method is adopted for lifting. Before hoisting, the first column body 13 should be padded with sleepers to avoid the contact between the bottom of the column and the ground during hoisting, and the column end cannot be dragged on the ground during hoisting.

When the first column body 13 is lifted to a position 200mm above the in-place position, the first column body is stable and aligned with the adjusting hole, slowly falls down, and the first column body is prevented from colliding with the adjusting screw rod 15 in the falling process. And after the special angle square is implemented, checking, and adjusting the first column body 13 to enable the positioning line of the first column body 13 to be coincident with the basic positioning axis. Three-person operation is needed during adjustment, one person moves the steel column, one person assists in stabilization, and the other person carries out detection. The seating error is guaranteed to be within 3 mm. The column shoe alignment is corrected with a jack and the perpendicularity of the first column 13 is measured with two theodolites.

An elevation reference point is calibrated on the column body of the first column body 13, then a deviation value of the elevation reference point is measured by a level gauge, and the elevation and the vertical deviation of the first column body 13 are adjusted by the adjusting nut arranged below the mounting plate 16. Adopt set up under the mounting panel 16 adjusting nut adjusts the elevation, and is more convenient and the accuracy is high. Before the first column body 13 is hoisted, the elevation of the upper surface of the adjusting nut can be adjusted to the elevation of the design requirement through the level gauge. After the first column body 13 is placed, fine adjustment is carried out by using the adjusting nut below the mounting plate 16, and the precision can reach within +/-1 mm. The gap reserved under the mounting plate 16 can be filled with grouting material.

And the verticality correction of the first cylinder 13 adopts a horizontal rule to preliminarily adjust the verticality of the steel column. Then two theodolites are used for observing from two sides of the column simultaneously, and the adjustment is carried out by means of the guy rope. After the adjustment is finished, the fastening nut 18 and the retaining nut 19 on the adjusting screw 15 are screwed and fixed. And after the first column body 13 is installed and checked to be qualified, the grouting beam can be poured, and during grouting construction, the grouting and stirring are carried out simultaneously so as to prevent bubbles from being generated.

In the steps S4 and S6, the stabilizing section steel is connected to two adjacent first stiff columns 1 or first stiff beams 2 in a lap joint manner, the lap joint length of the stabilizing section steel and the first stiff columns 1 or the first stiff beams 2 is at least 150mm, the two sides of the lap joint are temporarily fixed by 10mm fillet welds, and the stabilizing section steel is generally set to be H-shaped steel.

FIG. 20 is a schematic view showing the overlapping of the stabilizing sections, as shown in FIG. 20; preferably, the stabilizing section steel includes a fixing block 25 and a connecting block 26, the fixing block 25 is fixedly disposed on the first stiff column 1 or the first stiff beam 2, and the connecting block 26 connects the two fixing blocks 25, so as to realize connection between two adjacent first stiff columns 1 or first stiff beams 2.

The stable section steel is dismantled after being poured, the connecting block 26 is directly adopted to connect two adjacent first stiff columns 1 or first stiff beams 2, the end portion of the connecting block 26 is located in concrete, so that the first stiff columns or the first stiff beams are not easy to dismantle, the connecting block 26 can be arranged outside the concrete through the arrangement of the fixing block 25, the fixing block 25 is left in the concrete after pouring is completed, the connecting block 26 and the fixing block 25 are directly dismantled, and therefore the dismantling work of the stable section steel is facilitated.

The foregoing is only a preferred embodiment of the present invention, which is illustrative, not limiting. Those skilled in the art will appreciate that many variations, modifications, and equivalents may be made thereto without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a large-span strength nature roof beam, its characterized in that includes the three segmentation roof beam body, the segmentation roof beam body one-to-one is connected, forms linear first strength nature roof beam, first strength nature roof beam includes web and symmetry and fixed the setting and is in two roof beam pterygoid laminas at web both ends are adjacent be provided with first connecting assembly between the segmentation roof beam body, first connecting assembly includes first connecting plate, be provided with first connecting hole on the web, the both ends of first connecting plate all are provided with the second connecting hole, the second connecting hole at first connecting plate both ends correspond adjacent two respectively on the segmentation roof beam body first connecting hole, through passing connecting bolt in proper order the second connecting hole with first connecting hole and fixed with the nut, it is adjacent connecting position welded connection between the segmentation roof beam body.

2. The large-span stiff beam of claim 1, wherein said first stiff beam is provided with T-shaped stiffeners symmetrically disposed on both of said beam flanges of said first stiff beam, and said beam webs are vertically disposed.

3. The large-span stiff beam of claim 1, wherein at the connecting ends of said segmented beam bodies at the connecting locations between adjacent segmented beam bodies, one of said beam flanges is shorter than said web and the other of said beam flanges is longer than said web.

4. The large-span stiff beam according to claim 1, characterized in that said segmented beam bodies are arranged in equal length, and hooks for lifting are arranged on both sides of the connecting position of two adjacent segmented beam bodies.

5. A welding fixture for a large-span stiff beam according to any one of claims 1 to 4, comprising two end fixing seats and four connecting fixing seats, wherein the end fixing seats are arranged at two ends of the first stiff beam, and the connecting fixing seats are arranged corresponding to connecting positions of two adjacent segmented beam bodies.

6. The welding tooling of claim 5, wherein the end mounts and the connection mounts each include a U-shaped mount and a bottom support, the U-shaped mount having a rectangular slot with a slot width sized to match a beam web width of the first stiff beam, the first stiff beam disposed within the rectangular slot, and the beam web of the first stiff beam disposed vertically.

7. The welding tooling of claim 6, wherein the bottom support of the end fixing seat is a rectangular frame structure formed by welding profile steel, and the bottom support of the connecting fixing seat is a height-adjustable structure.

8. The welding tool according to claim 6, wherein the U-shaped seat comprises a bottom straight rod and two limiting rods vertically fixed on the bottom straight rod, an inclined support is further arranged between the limiting rods and the bottom straight rod, and the rectangular groove is formed between the two limiting rods.

9. The welding tool according to claim 8, wherein the end fixing seat is provided with at least 4 bottom extension rods, the bottom extension rods are fixedly arranged on the bottom straight rod, the bottom extension rods and the bottom straight rod are arranged on the same horizontal plane, a plurality of vertically arranged bottom support rods are arranged below the bottom extension rods, a bottom fixing frame is fixedly arranged below the bottom support rods, and the bottom fixing frame, the bottom support rods and the bottom extension rods form the bottom support of a rectangular parallelepiped frame structure.

10. The welding tool according to claim 8, wherein the bottom support of the connecting fixing seat is provided with an adjusting bolt, the adjusting bolt is vertically arranged and is in threaded connection with the bottom support, and the bottom support is arranged in a contact mode with a bottom plate through the adjusting bolt.

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