CN213709883U - Modularization steel construction building connection structure - Google Patents

Abstract

The utility model provides a modular steel structure building connection structure, which is used for connecting between two module boxes and comprises a module column end corner fitting, a connection cone, a connection box, a connection bolt and a connection plate, wherein each module box is correspondingly connected with one module column end corner fitting, each module column end corner fitting is correspondingly connected with one connection box, wherein each module column end corner fitting is provided with the corner fitting hole, each connecting box is provided with a connecting box bolt hole, the connecting plate is provided with the connecting cone and a connecting plate bolt hole, when the connecting plate is arranged between the two module column end corner fittings, the two ends of the connecting cone are correspondingly inserted into the corner fitting holes respectively, the connecting plate bolt hole is opposite to the connecting box bolt hole so that the connecting bolt passes through and is connected. The fault tolerance of the size deviation is increased, the installation difficulty is reduced, the on-site hoisting efficiency of the module box body is improved, and the installation period is shortened.

Description

Modularization steel construction building connection structure

Technical Field

The utility model relates to a modularization building technical field especially relates to a modularization steel construction building connection structure.

Background

The modular steel structure building is a novel building structure system and has the characteristics of high factory degree, short construction period, reliable quality, small field construction workload, environmental protection and the like. The structure system is formed by dividing a building into a plurality of box-shaped steel structure module units, and the module units are processed and manufactured in a factory and are integrated with equipment installation, pipelines, internal decoration and the like. And (3) after the box-type modules manufactured in a factory are transported to a site, hoisting the box-type modules in place, and performing the operations of connecting and splicing the nodes of the boxes, communicating pipelines between the boxes, decorating the outer vertical surfaces and the like. A building built in this way is called a modular steel structure building.

For the modularization steel structure building, the reliable connection between the module units is the key of guaranteeing structure safety, and only guaranteeing the reliability of connected nodes can ensure that each structure module is assembled to form overall structure, just can guarantee that the effective transmission of structure horizontal load and vertical load. The module units are connected with one another to have the characteristics of multiple beams and multiple columns, and if eight box body modules on the upper layer and the lower layer are assembled, the middle columns can form eight columns and sixteen beams. The gap between the box body modules is only 30-50 mm generally, the operation space is narrow and small, the precision requirement is high, the fault tolerance is small, the connection construction difficulty is very large, and the connection modes among the modules mainly include field welding, high-strength bolt connection, prestress connection and the like.

The most common connection at present is a high-strength bolted connection. The concrete method is that the module column end is provided with an angle piece and a connecting box, the column end angle pieces of the upper box column and the lower box column are connected by adopting a double-headed cone, and meanwhile, a high-strength bolt is arranged in the connecting box for connection. The connection mode has clear stress mode, the double-headed cone bears the horizontal shearing force between the upper box body and the lower box body, and the high-strength bolt bears the tensile force between the upper box body and the lower box body. The on-site welding is avoided in the construction, so that the operation is more convenient. However, in engineering practice, this connection also exposes some drawbacks:

(1) in order to ensure that the double-head cone reliably bears horizontal shear, the size of an opening on a corner piece of a box column needs to be strictly controlled, and the size of the corner piece hole is required to be 1.5-3.0 mm larger than that of the double-head cone. However, the past engineering experience shows that due to the size error in the processing process of the module box body, the deformation of box body components in the transporting and hoisting process and other factors, the post corner piece holes at the four corners of the upper box body and the lower box body cannot be aligned completely and accurately during field installation, and due to the fact that the corner piece holes are high in precision and small in fault tolerance, once the upper box body corner piece holes and the lower box body corner piece holes are dislocated, the double-headed cones cannot be inserted smoothly, the module box body cannot be installed in place smoothly, and the field installation progress of.

(2) In order to solve the problem of installation of the double-ended cones of the four corner columns of the box body during field construction, methods such as field cutting of the double-ended cones or reaming of corner pieces and the like are often adopted, so that the shearing resistance bearing capacity of the double-ended cones is weakened, and potential safety hazards can be caused if reinforcement measures are not adopted.

(3) The connecting box and the box body beam have the same width and smaller size. The number of bolts which can be arranged in the connecting box is limited, the bearing capacity of the node is low, and the requirement cannot be met in a high-intensity earthquake area.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a modularization steel construction building connection structure.

A modular steel structure building connection structure is used for being connected between two module boxes and comprises module column end corner pieces, connection cones, connection boxes, connection bolts and connection plates, wherein each module box is correspondingly connected with one module column end corner piece, each module column end corner piece is correspondingly connected with one connection box, the corner piece holes are formed in each module column end corner piece, connection box bolt holes are formed in each connection box, the connection cones and connection plate bolt holes are formed in the connection plates, when the connection plates are installed between the two module column end corner pieces, the two ends of each connection cone are correspondingly inserted in the corner piece holes, and the connection plate bolt holes are opposite to the connection box bolt holes so that the connection bolts can pass through and are connected.

Furthermore, the connection cone comprises a movable body and a sleeve joint piece, the sleeve joint piece is arranged on the movable body and matched with the corner piece hole, the sleeve joint piece and the corner piece hole are both rectangular, the length direction size of the sleeve joint piece is smaller than that of the corner piece hole, and the width direction size of the sleeve joint piece is smaller than that of the corner piece hole.

Furthermore, at least one operation hole is formed in the corner piece at the end of the module column, so that a user can rotate the connecting cone and clamp the connecting cone in the width direction of the corner piece hole.

Furthermore, the connection cone comprises a positioning body and four supporting pieces, wherein the four supporting pieces are arranged on two sides of the width of the positioning body respectively, and a gap is formed between the two supporting pieces which are positioned on the same side.

Further, the location body is octagon shape, support piece is isosceles trapezoid.

Further, the connection box is L-shaped.

Furthermore, the connecting box is provided with at least one mounting groove, and each mounting groove is internally provided with at least one connecting box bolt hole.

Further, the connecting box includes bottom plate, curb plate, end plate and stiffening plate, the bottom plate is L shape, and corresponds the welding between two adjacent and vertically sides of module column end corner fittings, the curb plate the end plate with stiffening plate all installs the bottom plate, and is located same one side of bottom plate, the quantity of end plate is two, and every the end plate with one side of module column end corner fittings is relative, and the both ends of end plate are passed through respectively the curb plate is connected module column end corner fittings, and pass through stiffening plate separates to form a plurality ofly the mounting groove.

Further, still include the backing plate, the backing plate with the quantity of mounting groove is unanimous, the backing plate is fixed in the mounting groove, and seted up on the backing plate connecting bolt passes the backing plate through-hole.

Furthermore, the opposite side surfaces of the corner pieces at the ends of the module columns, which are provided with the corner piece holes, are welded with the module column blocks, and one side of the end plate, which is far away from the stiffening plate, is welded with the module beam.

Compared with the prior art, the technical scheme has the following advantages:

the fault tolerance of size deviation is increased, the installation difficulty is reduced, smooth installation of the upper and lower layer module boxes is guaranteed, the on-site hoisting efficiency of the module boxes is improved, and the installation period is shortened. Through the cooperation of location double-end awl and activity awl, promote joint strength, and then prevent to appear sliding or droing between the module box, can avoid because of the installation difficulty condition that the cone is connected in job site reaming and cutting, and then avoid the emergence of potential safety hazard. In addition, the connecting cone ensures the positioning precision and the verticality of the plane of the module box body when the module box body is installed, and the connecting bolt bears the horizontal shearing force and the pulling force of the structure.

The present invention will be further described with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural view of a preferred embodiment of a modular steel structure building connection structure according to the present invention;

figure 2 is an exploded view of the above preferred embodiment of the modular steel structural building connection structure according to the present invention;

figure 3 is a schematic structural view of a preferred embodiment of the modular column end corner fitting and junction box combination according to the present invention;

FIG. 4 is a schematic view of another directional structure of the modular column end corner fitting and junction box combination of FIG. 3;

FIG. 5 is a schematic plan view of a modular column end corner fitting and junction box combination according to FIG. 3;

FIG. 6 is a side view of the modular column end corner fitting and junction box combination of FIG. 3;

FIG. 7 is another side elevational view of the modular column end corner fitting and junction box combination of FIG. 6;

FIG. 8 is a schematic structural view of a preferred embodiment of the connection cone according to the present invention;

FIG. 9 is a top view of the connection cone according to FIG. 8;

FIG. 10 is a side view of the connection cone according to FIG. 8;

FIG. 11 is a schematic structural view of another preferred embodiment of a connection cone according to the present invention;

FIG. 12 is a top view of the connection cone according to FIG. 11;

FIG. 13 is a side view of the connection cone according to FIG. 11;

fig. 14 is a schematic structural view of a preferred embodiment of the connection plate according to the present invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purpose of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

As shown in fig. 1 to 14, the modular steel structure building connection structure, which can be used for connecting between an upper module box and a lower module box, includes a module column end corner fitting 1, a connection cone 2, a connection box 3, a connection bolt 5 and a connection plate 6, wherein each module box is correspondingly connected with one module column end corner fitting 1, each module column end corner fitting 1 is correspondingly connected with one connection box 3, each module column end corner fitting 1 is provided with the corner fitting hole 7, each connection box 3 is provided with a connection box bolt hole 13, the connection plate 6 is provided with the connection cone 2 and a connection plate bolt hole 61, when the connection plate 6 is installed between two module column end corner fittings 1, two ends of the connection cone 2 are correspondingly inserted into the corner fitting holes 7, the connection plate bolt hole 61 is opposite to the connection box bolt hole 13, so that the coupling bolt 5 passes through and is coupled.

The module column end corner fitting 1 and the connecting box 3 can be welded with a module beam and a column which are used for forming a module box body into a whole. The module box body is required to be correspondingly provided with eight module column end corner fittings 1 and eight connecting boxes 3, namely, the four corners of the upper side and the lower side of the module box body are correspondingly welded with one module column end corner fitting 1 and one connecting box 3. After the modular unit is transported to a construction site, the module box body at the lower layer is firstly installed and leveled, height is corrected, verticality is checked again, then the connecting plate 6 is placed at the position of the corner fitting 1 at the end of the module column, the connecting cone 2 on the connecting plate 6 is inserted into the corner fitting hole 7, and the connecting plate bolt holes 61 on the connecting plate 6 are opposite to the connecting box bolt holes 13, and then the assembled upper module box body is hoisted, so that the corner piece holes 7 of the upper module box body correspond to the connecting cones 2, and the connecting box bolt holes 13 of the upper module box body correspond to the connecting plate bolt holes 61 on the connecting plate 6 until the connecting plate 6 is abutted between the two module column end corner fittings 1, and two ends of the connecting cone 2 are correspondingly inserted into the corner fitting holes 7 respectively. And finally, the connecting bolt 5 penetrates through the connecting box bolt hole 13 and the connecting plate bolt hole 61 and is fixed, so that the upper module box body and the lower module box body are assembled. And then the connecting box 3 can be coated with anticorrosive and fireproof materials according to the requirement.

As shown in fig. 1 to 7, the inside of the module column end corner fitting 1 is a cavity, so that the connecting cone 2 is inserted into the cavity through the corner fitting hole 7. At least one operation hole 8 is further formed in the module column end corner fitting 1, so that a user can rotate the connecting cone 2 located in the cavity, the connecting cone 2 can be clamped with the corner fitting hole 7, and further the fixing is strengthened.

Specifically, module column end corner fittings 1 is the cuboid to install in upper module box lower part module column end corner fittings 1 is the example, one has been seted up to module column end corner fittings 1 downside corner fittings hole 7, module column end corner fittings 1 go up with the downside vertically side on seted up operation hole 8, preferably, the quantity of operation hole 8 is two operation hole 8 is seted up respectively on the different sides of module column end corner fittings 1 to these two sides are mutually perpendicular. The shape of the operation hole 8 may be a long hole shape, but is not limited thereto, as long as the user rotates the connection cone 2 through the operation hole 8.

In an example, the shape of the corner fitting hole 7 is adapted to the shape of the connection cone 2, as shown in fig. 8 to 13, the connection cone 2 may be a positioning double-ended cone or a movable cone, and referring to fig. 8 to 10, the connection cone 2 is a positioning double-ended cone, and includes a positioning body 21 and four supporting members 22, the positioning body 21 is in an octagonal shape, the two sides of the width of the positioning body 21 are respectively provided with four supporting members 22, that is, each side is provided with two supporting members 22, and a gap is formed between the two supporting members 22 on the same side, and the supporting members 22 may be in an isosceles trapezoid shape. The positioning body 21 and the support 22 may be an integral structure. As shown in fig. 5 and 9, the length direction of the connection cone 2 is 3.0mm smaller than the length direction of the corner fitting hole 7, the width direction of the connection cone 2 is 3.0mm smaller than the width direction of the corner fitting hole 7, the connection cone 2, which is a double-ended cone, may be welded to the connection plate 6, referring to fig. 14, the connection plate 6 is provided with a cone sleeve hole 62, and the connection cone 2 is inserted into the cone sleeve hole 62 and fixed by welding. It should be noted that, when the connecting cone 2 is welded to the connecting plate 6, the extending lengths of both sides are the same.

In another example, as shown in fig. 11 to 13, the connection cone 2 is a movable cone, the connection cone 2 includes a movable body 23 and a sleeve 24, the movable body 23 and the sleeve 24 can be integrated, the movable body 23 is cylindrical, the sleeve 24 is disposed at a middle position of the movable body 23, the sleeve 24 is mounted on the connecting plate 6, so that two ends of the movable body 23 are respectively located at two sides of the connecting plate 6, when the connecting plate 6 is located between two module column end corner fittings 1, the sleeve 24 is matched with the corner fitting hole 7, wherein the sleeve 24 and the corner fitting hole 7 are both rectangular, a length direction dimension of the sleeve 24 is 10.0mm smaller than a length direction dimension of the corner fitting hole 7, a width direction dimension of the sleeve 24 is 10.0mm smaller than a width direction dimension of the corner fitting hole 7, at this time, the user rotates the movable body 23 through the operation hole 8 to drive the socket 24 to rotate by 90 degrees and clamp the width direction of the corner fitting hole 7. In addition, when the connection cone 2 is a movable cone, it is not welded to the connection plate 6.

It is worth noting that the positioning double-ended cones and the movable cones are matched for use, for example, the upper and lower module boxes can be matched for use through one positioning double-ended cone and three movable cones, wherein the upper and lower module boxes are installed and positioned through the positioning double-ended cones, and the movable cones are rotated for auxiliary positioning, so that the fault tolerance of size deviation is increased, the installation difficulty is reduced, the smooth installation of the upper and lower module boxes is ensured, the on-site hoisting efficiency of the module boxes is improved, and the installation period is shortened. Further explaining, the connection strength is improved, and the module box bodies are prevented from slipping or falling off. Further, the situation that the cone 2 is reamed and cut in a construction site due to the difficulty in installation can be avoided, and further the potential safety hazard is avoided.

As shown in fig. 1 to 7, the connection box 3 is L-shaped and is welded to the adjacent and vertical side surfaces of the two sides of the module column end corner fitting 1. Referring to fig. 5, of the four side surfaces of the rectangular module column end corner fitting 1 connected in sequence, two of the four side surfaces are correspondingly provided with the operation holes 8, and the other two side surfaces are correspondingly welded with the connection box 3.

The connecting box 3 is provided with at least one mounting groove 31, and at least one connecting box bolt hole 13 is formed in the mounting groove 31, so that the connecting bolt 5 penetrates through the connecting box bolt hole 13 in the mounting groove 31 and is connected with the connecting plate bolt hole 61. Referring to fig. 5, the number of the mounting grooves 31 is five, and each mounting groove 31 is rectangular and is perpendicular to the corresponding module column end corner fitting 1. With continued reference to fig. 5, each of the mounting grooves 31 is provided with two connecting box bolt holes 13, so that the number of the connecting bolts 5 can be correspondingly increased, the problem of low bearing capacity of the conventional bolt connecting structure is solved, the rigidity of the joint is improved, and the popularization and the application are facilitated.

Specifically, the plurality of mounting grooves 31 are arranged along the edge of the module column end corner fitting 1, so that the number of the mounting grooves 31 is increased, and the number of the connecting bolts 5 is increased.

As shown in fig. 5 to 7, the connection box 3 includes a bottom plate 9, side plates 10, end plates 11 and stiffener plates 12, the bottom plate 9 is flush with the side surfaces of the module column end corner fittings 1, where the corner fitting holes 7 are formed, the side plates 10, the end plates 11 and the stiffener plates 12 are all installed on the bottom plate 9 and located on the same side of the bottom plate 9, wherein the bottom plate 9 is L-shaped and correspondingly welded between two adjacent and perpendicular side surfaces of the module column end corner fittings 1, the number of the end plates 11 is two, each of the end plates 11 corresponds to one side surface of the module column end corner fittings 1, and two ends of the end plates 11 are connected to the module column end corner fittings 1 through the side plates 10 and are separated by the stiffener plates 12 to form a plurality of the mounting grooves 31. Through adopting above-mentioned structure, effectively promote the connection box wholly supports load strength to can adopt the welding between the plate body.

The bottom plate 9 is provided with the connecting box bolt hole 13, and the connecting box bolt hole 13 is positioned in the mounting groove 31.

With continued reference to fig. 5, the overall shape of the junction box 3 and the module column end corner fitting 1 after welding is a right trapezoid.

As shown in fig. 1, 2, 5, 6 and 7, the modular steel structure building connection structure further comprises a backing plate 4, the backing plate 4 is consistent with the mounting groove 31 in number, the backing plate 4 is provided with a backing plate through hole for the connecting bolt 5 to pass through, the backing plate 4 is installed in the mounting groove 31 and fixed on the bottom plate 9, so that the connecting bolt 5 sequentially passes through the backing plate 4, the bottom plate 9 and the connecting plate 6 to be connected and locked by a nut.

Specifically, two connecting box bolt holes 13 are arranged in the mounting groove 31, two backing plate through holes are formed in the backing plate 4, and each connecting box bolt hole 13 corresponds to one backing plate through hole.

The connecting bolt 5 can be a high-strength bolt to bear horizontal shearing force and tensile force of the structure.

It should be noted that the planar size of the connection box 3 is determined by the number of the connection bolts 5 and the bolt pitch and margin. The height of the connecting box 3 and the thickness of the plate body can be calculated and determined so as to ensure that the ultimate bearing capacity of the connecting box 3 is not less than that of an adjacent component.

As shown in fig. 1 to 7, the modular steel structure building connection structure may be welded with the module post blocks 15 and the module beams 14, etc., and transported to a construction site to constitute a module case.

Specifically, the module column blocks 15 are welded to the opposite side faces of the module column end corner fittings 1, which are provided with the corner fitting holes 7, the module beams 14 are welded to the side, which is far away from the stiffening plates 12, of the end plates 11, and the cross sections of the module beams 14 are in I shapes.

In conclusion, the fault tolerance of the size deviation is increased, the installation difficulty is reduced, smooth installation of the upper and lower layer module boxes is guaranteed, the on-site hoisting efficiency of the module boxes is improved, and the installation period is shortened. Through the cooperation of location double-end awl and activity awl, promote joint strength, and then prevent to appear sliding or droing between the module box, can avoid because of the installation difficulty condition that the cone is connected in job site reaming and cutting, and then avoid the emergence of potential safety hazard. In addition, the connecting cone ensures the positioning precision and the verticality of the plane of the module box body when the module box body is installed, and the connecting bolt bears the horizontal shearing force and the pulling force of the structure.

Besides, the person skilled in the art can also be right according to actual conditions the module column end corner fitting 1, the shape, structure and material of connecting box 3 change, as long as the utility model discloses on the basis that the aforesaid was revealed, adopted with the utility model discloses the same or similar technical scheme, solved with the utility model discloses the same or similar technical problem, and reached with the utility model discloses the same or similar technological effect all belongs to within the protection scope, the utility model discloses a concrete implementation mode does not use this as the limit.

That is to say, as long as on the above-mentioned basis of disclosing of the utility model, adopted with the same or similar technical scheme of the utility model, solved with the same or similar technical problem of the utility model to reached with the same or similar technological effect of the utility model, all belong to within the protection scope, the utility model discloses a concrete implementation does not use this as the limit.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments without departing from the principles, embodiments of the present invention may have any deformation or modification.

Claims (10)

1. The utility model provides a modularization steel construction building connection structure, its characterized in that for connecting between two module boxes, including module post end corner fittings, connection cone, connecting box, connecting bolt and connecting plate, every the module box corresponds respectively and connects one module post end corner fittings, every module post end corner fittings corresponds respectively and connects one the connecting box, wherein every all seted up the corner fittings hole on the module post end corner fittings, every the connecting box has all seted up the connecting box bolt hole, be provided with connection cone and connecting plate bolt hole on the connecting plate, work as the connecting plate is installed in two when the module post end corner fittings between, the both ends of connecting cone correspond respectively peg graft in the corner fittings is downthehole, the connecting plate bolt hole with the connecting box bolt hole is relative, so that connecting bolt passes through and connects.

2. The modular steel structure building connection structure of claim 1, wherein the connection cone comprises a movable body and a socket member, the socket member is disposed on the movable body, the socket member is engaged with the corner member hole, the socket member and the corner member hole are both rectangular, a length direction dimension of the socket member is smaller than a length direction dimension of the corner member hole, and a width direction dimension of the socket member is smaller than a width direction dimension of the corner member hole.

3. The modular steel structure building connection structure of claim 2, wherein the corner fitting at the end of the module column is provided with at least one operation hole, so that a user can rotate the connection cone and the connection cone can be engaged with the width direction of the corner fitting hole.

4. The modular steel structure building connection structure of claim 1, wherein the connection cone comprises a positioning body and four supporting members, the positioning body is provided with four supporting members at two sides of the width thereof, and a gap is formed between the two supporting members at the same side.

5. The modular steel structure building connection structure of claim 4, wherein the positioning body has an octagonal shape, and the support member has an isosceles trapezoid shape.

6. The modular steel structural building connection structure of claim 1, wherein the connection box is L-shaped.

7. The modular steel structure building connection structure of claim 1, wherein the connection box is provided with at least one mounting groove, and each mounting groove is provided with at least one connection box bolt hole.

8. The modular steel structure building connection structure of claim 7, wherein the connection box comprises a bottom plate, two side plates, an end plate and a stiffener plate, the bottom plate is L-shaped and correspondingly welded between two adjacent and vertical sides of the module column end corner fitting, the side plates, the end plate and the stiffener plate are all installed on the bottom plate and located on the same side of the bottom plate, the number of the end plates is two, each end plate is opposite to one side of the module column end corner fitting, and two ends of the end plate are respectively connected with the module column end corner fitting through the side plates and are separated by the stiffener plate to form a plurality of mounting grooves.

9. The modular steel structure building connection structure of claim 7, further comprising backing plates, wherein the number of the backing plates is the same as that of the installation grooves, the backing plates are fixed in the installation grooves, and the backing plates are provided with the backing plate through holes through which the connection bolts pass.

10. The modular steel structure building connection structure of claim 8, wherein the module column end corner pieces have module column blocks welded to opposite sides thereof where the corner piece holes are formed, and module beams welded to sides of the end plates facing away from the stiffener plates.

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