CN106401015B - Assembled mixing coupled wall system and construction method with pre-buried seam girder steel section - Google Patents

Abstract

A prefabricated hybrid connected-limb wall system and construction method with pre-embedded joint steel beam sections, the system includes wall units connected in the horizontal direction and vertical direction respectively, wherein the wall units connected in the vertical direction There are floor slabs, and the wall unit includes the concrete wall of the wall unit and the reinforced skeleton of the wall unit located inside the concrete wall of the wall unit. The upper parts of the left and right sides of the reinforcement frame are symmetrically connected with pre-embedded joint steel beam sections, and the outer ends of the wall unit pre-embedded joint columns and the pre-embedded joint steel beam sections exceed the side edges of the wall unit concrete wall. The present invention establishes a finite element model to perform mechanical analysis on the prefabricated mixed limb wall system to verify its structural reliability, and has the advantages of good seismic performance and easy repair after strong earthquakes; the construction quality is easy to guarantee, and the environmental protection performance is good; the design is flexible , Efficient production, convenient transportation, convenient installation, and good economic benefits.

Description

Prefabricated hybrid connected limb wall system and construction method with pre-embedded joint steel beam sections

technical field

The invention relates to the field of building construction, in particular to an assembled wall pier structure and a construction method thereof.

Background technique

The high-rise building structure is an inevitable choice to solve the contradiction between the growing urban population and the gradual shortage of urban land in the process of urbanization in my country, and the connected wall structure system is an indispensable element in the high-rise building structure. According to the measured data in the past, the attached wall system not only inherits the advantages of simple shear wall engineering such as low cost and high lateral stiffness, but also reflects the yield energy consumption of the connecting beam under the action of strong earthquakes, avoiding or reducing a large number of cracks concentrated in the The situation at the bottom of the wall has the advantage of reducing the cost of post-earthquake repairs.

However, in the actual application process, limited to the functional requirements of the building, traditional concrete coupling beams are often difficult to meet the shear resistance requirements of the section, which has caused certain difficulties for designers. Compared with the traditional connected limb wall, the characteristic of the hybrid connected limb wall is that the steel connecting beam is used to replace the concrete connecting beam, and the theory of eccentrically supported energy-dissipating beams in the current relevant codes and regulations is applied, so that the latter has better energy dissipation than the former. ability and resistance to continuous collapse, and is conducive to meeting the requirements of building use and simplifying the assembly process. For the new prefabricated structural system, solving the connection form between the wall assembly units has become an urgent problem to be solved.

Contents of the invention

The purpose of the present invention is to provide a prefabricated hybrid connected-limb wall system with pre-embedded joint steel beam sections and its construction method, to solve the problems of complex stress, unstable structure, unreliable connection relationship and inconvenient construction of traditional structures technical problem.

To achieve the above object, the present invention adopts the following technical solutions:

A prefabricated hybrid connected-limb wall system with pre-embedded joint steel beam sections, including wall units connected in the horizontal direction and vertical direction respectively, wherein floor slabs are arranged between the wall units connected in the vertical direction, so The wall unit includes the concrete wall of the wall unit and the reinforced skeleton of the wall unit located inside the concrete wall of the wall unit. The upper parts of the left and right sides are symmetrically connected with pre-embedded joint steel beam sections, and the outer ends of the pre-embedded joint columns of the wall unit and the pre-embedded joint steel beam sections both exceed the side edges of the concrete wall of the wall unit.

The left and right wall units in the horizontal direction are correspondingly connected by pre-embedded joint steel beam sections, and the joints between the left and right wall units are filled with fillers; if there is a window or door opening, the left and right wall units An additional steel connecting beam is connected between the pre-buried joint steel beam sections.

The upper and lower wall units in the vertical direction are correspondingly connected through the pre-embedded joint columns of the wall units and the steel bar skeleton of the wall units, and the pre-embedded joint columns of the wall units between the upper and lower wall units are butted and poured inside the floor slab.

The upper and lower sides of the concrete wall of the wall unit are symmetrically connected with two wall unit pre-embedded joint columns, and the two wall unit pre-embedded joint columns on the same side are evenly spaced, and the length of the wall unit pre-embedded joint columns is It is about 40cm, and the length of its outer end beyond the side edge of the concrete wall of the first wall unit is about half of the thickness of the floor slab.

The pre-embedded joint steel beam section is arranged along the length direction of the concrete wall of the wall unit, and the pre-embedded part shear studs and auxiliary steel bar connectors are respectively welded on the upper and lower flanges of the pre-embedded joint steel beam section, and the auxiliary steel bar The connector is connected with auxiliary steel bars at the end of the pre-embedded joint beam.

The length of the outer end of the upper pre-embedded joint steel beam section beyond the side edge of the concrete wall of the wall unit is 5 cm to 10 cm, and the inner end does not exceed one-third of the length of the concrete wall of the wall unit .

The upper surface of the pre-embedded joint steel beam section is flush with the edge of the wall unit concrete wall, and the end of the embedded part shear stud connected to the upper surface of the pre-embedded joint beam exceeds the edge of the wall unit concrete wall .

The buried joint steel beam sections are connected by bolts, welds or a combination of bolts and welds.

One or more of the top, bottom, left, and right sides of the wall unit concrete wall is a rough surface or has a wall unit keyway in the horizontal direction.

The reinforced skeleton of the wall unit includes a reinforced grid frame composed of horizontal steel bars, vertical steel bars and tie bars between the two, and wall unit seam column construction bars arranged around the pre-embedded joint columns of the wall unit , the vertical steel bars of the wall unit reinforcement frame of the upper and lower wall units are butted through the grout anchor sleeve.

The floor slab is an on-site poured concrete structure or an assembled prefabricated concrete structure.

The pre-embedded joint column of the wall unit and the pre-embedded joint steel beam section are H-shaped steel or combined I-beam.

The pre-embedded joint steel beam section stiffener is vertically welded between the two flanges of the pre-embedded joint steel beam section, and the pre-embedded joint steel beam section stiffener does not exceed the edge of the concrete wall of the wall unit and can be connected with the wall The unit concrete walls have flush edges.

A construction method for a prefabricated hybrid connected-limb wall system with pre-embedded joint steel beam sections as described, characterized in that it includes a prefabrication process and an on-site assembly process for wall units, and the specific steps are as follows:

Prefabrication process for wall units:

Step 1: Weld the embedded part shear studs on the pre-embedded joint column of the wall unit.

Step 2, making steel beam sections with embedded joints: Weld the shear studs of embedded parts and auxiliary steel bar connectors on the upper and lower flanges of shaped steel beams or welded I-beams respectively, and then install the embedded joints Beam end auxiliary bars are connected with auxiliary bar connectors.

Step 3, correspondingly connecting the pre-embedded joint column of the wall unit and the pre-embedded joint steel beam section at the design position.

Step 4, according to the design requirements, bind the steel skeleton of the wall unit.

Step 5, and fix the structural reinforcement of the wall unit joint column around the pre-embedded joint column of the wall unit.

Step 6, supporting the pouring formwork of the wall unit, and performing horizontal keyway or rough surface treatment on one or more of the four sides of the upper, lower, left, and right sides as required.

Step seven, pouring concrete for the wall unit.

Step 8: After pouring, forming and maintenance, lift and demould through lifting rings, and complete the prefabrication process of the wall unit.

On-site assembly process of mixed limb wall:

Step 1, transport the prefabricated wall units to the construction site, and start the site construction process.

The second step is to connect the wall units in the vertical direction, and respectively connect the pre-embedded joint columns of the wall units of the upper and lower wall units with the reinforcement skeleton of the wall units.

Step 3, connect the wall units in the horizontal direction, connect the pre-embedded joint steel beam sections of the left and right wall units correspondingly, and fill the vertical joints with filler; if there is a window or door opening, the left and right Steel connecting beams are added between the wall units.

Step 4, binding the reinforcing bars of the floor slab and supporting the formwork of the floor slab.

Step five, pouring the concrete for the floor slab.

Step 6, to be poured into shape and maintained.

In step seven, repeat steps one to six in this process to complete the construction process of the entire prefabricated mixed limb wall system.

Compared with the prior art, the present invention has the following characteristics and beneficial effects:

Based on the finite element theory, the present invention establishes a finite element model to perform mechanical analysis on the prefabricated hybrid connected wall system to verify the reliability of its structure. Compared with the concrete shear wall structure system, the system has good seismic performance, strong earthquake resistance Compared with the traditional cast-in-place method, the construction quality is easy to guarantee, and the environmental protection performance is good; compared with the existing prefabricated shear wall, it has the advantages of flexible design, efficient production, convenient transportation, convenient installation and economical Good benefits and other advantages are embodied in the following aspects:

1. Good seismic performance: the present invention relies on pre-embedded joint steel beam sections to connect each wall unit into a mixed limb wall system. Under the repeated action of earthquakes, this structural system can make the exposed part of the pre-embedded joint beam better formed Shear-type yielding, its energy dissipation mode is similar to that of eccentrically supported energy-dissipating beam sections, and has the characteristics of large energy dissipation capacity and small deformation. Embedded joint steel beam sections can be arranged along the entire height of the structure, just like setting A considerable amount of "fuse", thus forming a better energy dissipation mechanism; compared with concrete coupling beams, the shear yield energy dissipation performance of the former is better than the plastic hinge energy dissipation at the beam end of concrete coupling beams, and the shear yield dissipation of the former The deformation is small, and the ability to resist continuous collapse is strong under the action of strong earthquakes.

2. It is easy to repair after strong earthquakes: the energy transmitted to the structure under strong earthquakes is mainly absorbed by the pre-embedded joint beams and connecting beams in the form of plastic deformation. Under the action of strong earthquakes, the development of cracks is delayed and better avoided Or reduced crack propagation at the bottom of the shear wall. Therefore, the repair after a strong earthquake only needs to replace the exposed pre-embedded steel beam sections or connecting beams and a small amount of cracked wall reinforcement.

3. The construction process is optimized, and the construction quality is easy to guarantee: most of the wall production is completed in the factory, so the effective on-site supervision can be concentrated on the connection between the wall units, and the construction quality is easy to guarantee; compared with cast-in-place Compared with concrete shear walls, factory production and on-site installation are carried out at the same time, which solves the problem of large amount of wet work on site for cast-in-place concrete shear walls; compared with existing general prefabricated shear walls, pre-embedded joint columns can solve the problem of The problem of the stability of the wall construction process provides a technical possibility for the on-site splicing of the same floor wall units and the three-dimensional cross construction of the floor slab pouring; steel coupling beams replace concrete coupling beams to solve the problem The problem of heavy wet work.

4. Good environmental protection performance: Since most of the wall is made in the factory, the formwork can be effectively reused, and the pre-embedded joint steel beam sections and connecting beams do not need to use formwork and temporary supports, so the construction process reduces construction costs. Garbage generation.

5. Flexible design, efficient production, convenient transportation, and convenient installation: In the existing prefabricated shear wall design, the coupling beam and the wall connected to the two ends of the coupling beam are often divided into an assembly unit, resulting in excessive unit volume. Large, which brings a lot of inconvenience to transportation and installation; in addition, this kind of unit body design method not only causes inconvenience to designers, but also the wall assembly unit is not suitable for forming standard parts, resulting in low mold utilization efficiency. This patent proposes to realize the effective connection between wall piers by adopting the connection between pre-buried joint steel beam sections and between pre-buried joint steel beam sections and connecting beams, which provides convenience for structural designers to design prefabricated units flexibly, and at the same time It is also conducive to the formation of standard parts for the wall assembly unit; the pre-embedded joint steel beam section and the connecting beam are connected on site, so there is no need to consider pouring the connecting beam and the walls at both ends into a unit body, so as to facilitate transportation and installation; The pre-embedded joint column is set for the connection of the upper and lower wall units, which saves the process of temporary support on site, and truly realizes the "building block" construction method, which is convenient for installation. In short, compared with the existing prefabricated shear walls, it has the advantages of flexible design, efficient production, convenient transportation, and convenient installation.

6. Good economic benefits: At this stage, the cost of prefabricated shear walls remains high. The main reason is that the connecting beams and the walls at both ends are poured into a large unit, which causes inconvenience for transportation and installation; the other is Irregular wall assembly units are not easy to form standard parts, and the mold utilization rate is low. The effective connection between the wall limbs is realized by the connection between the pre-embedded joint steel beam sections, the pre-embedded joint steel beam section and the connecting beam. The above problems It can be easily solved, can significantly reduce the cost, and highlights the economic advantages of the assembled structure.

Description of drawings

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is a structural schematic diagram of a wall unit of the present invention.

FIG. 2 is a schematic cross-sectional view of A-A in FIG. 1 .

Fig. 3 is a structural schematic diagram of the present invention.

FIG. 4 is a schematic cross-sectional view along B-B of FIG. 3 .

Reference signs: 1 - wall unit, 2 - concrete wall of wall unit, 3 - pre-embedded joint column of wall unit, 4 - structural reinforcement of joint column of wall unit, 5 - keyway of wall unit, 6 - reinforced skeleton of wall unit, 7- Shear studs of embedded parts, 8- Embedded joint steel beam section, 9- Auxiliary reinforcement of embedded joint steel beam section, 10- Auxiliary reinforcement connector, 11- Embedded joint steel beam section stiffener ,, 12-filler, 13-floor, 14-steel connecting beam, 15-slurry anchor sleeve.

Detailed ways

Referring to the embodiment shown in Fig. 3 and Fig. 4, this prefabricated hybrid connected limb wall system with pre-embedded joint steel beam sections includes wall units 1 connected in the horizontal and vertical directions respectively, and the wall units 1 is a prefabricated component, the concrete strength grade is not less than C30 and not higher than C60, the height of the wall is about the floor height minus the thickness of the floor slab, wherein a floor 13 is arranged between the wall units connected in the vertical direction, and the left side in the horizontal direction 1. The right wall units 1 are correspondingly connected by pre-embedded joint steel beam sections 8, and the joints between the left and right wall units are filled with fillers 12, and the fillers can be low-strength fillers, such as hollow Small blocks, perforated bricks, etc., if there are window openings or door openings, add steel connecting beams 14 between the pre-embedded joint steel beam sections 8 of the left and right wall units 1; The pre-embedded joint columns 3 through the wall units are connected through high-strength bolts or bolt welding, and the vertical steel bars of the wall unit reinforcement skeleton 6 are correspondingly connected through the grout anchor sleeves 15. The wall units between the upper and lower wall units are pre-embedded. The seam column 3 is butted and poured inside the floor slab 13 .

Referring to Figures 1 and 2, the wall unit 1 includes a wall unit concrete wall 2 and a wall unit steel skeleton 6 located inside the wall unit concrete wall, and the middle parts of the upper and lower sides of the wall unit steel skeleton are correspondingly pre-embedded. The pre-embedded joint column 3 of the wall unit, the upper part of the left and right sides of the steel skeleton of the wall unit are symmetrically connected with the pre-embedded joint steel beam section 8, and the pre-embedded joint column 3 and the pre-embedded joint steel beam section 8 of the wall unit The outer ends of all exceed the side edges of the concrete wall body 2 of the wall unit.

The upper and lower sides of the concrete wall of the first wall unit are symmetrically connected with two first wall unit pre-embedded joint columns, and the two first wall unit pre-embedded joint columns on the same side are evenly spaced. The length of the pre-embedded joint column of the wall unit is about 40cm, and the length of the outer end beyond the side edge of the concrete wall of the first wall unit is 5 cm to 10 cm, which is about half of the thickness of the floor slab.

The pre-embedded joint steel beam section 8 is arranged along the length direction of the wall unit concrete wall 2, on which the embedded part shear stud 7 is welded, and the auxiliary steel bar of the pre-embedded joint steel beam section is connected through the auxiliary steel bar connector 10 9 connections. The outer end of the upper pre-embedded joint steel beam section 8 exceeds the side edge of the wall unit concrete wall 2 in a length range of 5 cm to 10 cm, and the inner end does not exceed one-third of the length of the wall unit concrete wall. one.

The upper surface of the pre-embedded joint beam is flush with the edge of the concrete wall of the wall unit, and the ends of the shear studs of the pre-embedded parts connected to the upper surface of the pre-embedded joint beam exceed the edge of the concrete wall of the wall unit.

The pre-embedded joint steel beam sections 8 are connected by bolts, welds or a combination of bolts and welds.

One or more of the four sides of the wall unit concrete wall 2 is rough or has a wall unit keyway 5 in the horizontal direction.

The wall unit reinforced skeleton 6 includes a reinforced grid frame composed of horizontal steel bars, vertical steel bars and tie bars between the two, and wall unit joint columns arranged around the wall unit pre-embedded joint columns 3 Structural Rib4.

The pre-embedded joint column 3 of the wall unit and the pre-embedded joint steel beam section 8 are H-shaped steel or combined I-beam, and the strength grade is not lower than Q235 and not higher than Q420.

A pre-embedded joint steel beam section stiffener 12 is vertically welded between the two flanges of the pre-embedded joint beam 9 , and the pre-embedded joint steel beam section stiffener 11 is flush with the concrete wall 2 of the wall unit.

A construction method for a prefabricated hybrid connected-limb wall system with pre-embedded joint steel beam sections as described, including prefabrication and on-site assembly of wall units, characterized in that the specific steps are as follows:

Prefabrication process for wall units:

Step 1, welding and fixing the wall unit shear stud 4 on the pre-embedded joint column 3 of the wall unit.

Step 2, making pre-embedded joint steel beam section 8: Weld the pre-embedded shear studs and auxiliary steel bar connectors on the upper and lower flanges of the shaped steel girder or welded I-beam respectively, and then connect the pre-embedded joints The auxiliary reinforcement at the end of the slotted beam is connected with the auxiliary reinforcement connector.

Step 3, correspondingly connecting the pre-embedded joint column 3 of the wall unit and the pre-embedded joint steel beam section 8 at the design position.

Step 4, according to the design requirements, bind the steel frame 6 of the wall unit.

Step five, and fix the wall unit joint column structural reinforcement 4 around the wall unit pre-embedded joint column 3 .

Step 6, supporting the pouring formwork of the wall unit 1, and performing horizontal keyway or rough surface treatment on one or more of the four surfaces of the upper, lower, left, and right sides as required.

Step seven, pouring the concrete of the wall unit 1.

Step 8: After pouring, forming and maintenance, lift and demould through lifting rings, and complete the prefabrication process of the wall unit.

On-site assembly process of mixed limb wall:

Step 1, transport the prefabricated wall units to the construction site, and start the site construction process.

Step 2, connect the wall units in the vertical direction, connect the wall unit pre-embedded joint columns 3 of the upper and lower wall units with the wall unit reinforcement skeleton 6 respectively, wherein the wall unit pre-embedded joint columns 3 pass through The high-strength bolts or bolt-welding hybrid connection, and the vertical steel bars of the steel bar skeleton 6 of the wall unit are connected through the grout anchor sleeve 15 .

Step 3, connect the wall units in the horizontal direction, connect the pre-embedded joint steel beam sections of the left and right wall units through high-strength bolts or bolt welding, and fill the vertical joints with filler 12; if any For window openings or door openings, add steel connecting beams between the pre-embedded joint steel beam sections of the left and right wall units.

Step 4, binding the steel bars of the floor 13 and supporting the formwork of the floor 13 .

Step five, pouring the concrete of the floor slab 13 .

Step 6, to be poured into shape and maintained.

In step seven, repeat steps one to six in this process to complete the construction process of the entire prefabricated mixed limb wall system.

Claims (10)

1. A prefabricated hybrid connected-limb wall system with pre-embedded joint steel beam sections, including wall units (1) connected in the horizontal direction and vertical direction respectively, wherein the wall units connected in the vertical direction A floor (13) is provided, characterized in that: the wall unit (1) includes a wall unit concrete wall (2) and a wall unit steel skeleton (6) located inside the wall unit concrete wall, the upper and lower parts of the wall unit steel skeleton The middle parts of both sides correspond to the pre-embedded joint columns (3) of the wall units, and the upper parts of the left and right sides of the steel skeleton of the wall units are symmetrically connected with the pre-embedded joint steel beam sections (8), and the pre-embedded joints of the wall units The outer ends of the joint column (3) and the pre-embedded joint steel beam section (8) both exceed the side edge of the concrete wall (2) of the wall unit; The left and right wall units (1) in the horizontal direction are correspondingly connected by pre-embedded joint steel beam sections (8), and the joints between the left and right wall units are filled with fillers (12); The upper and lower wall units (1) in the vertical direction are correspondingly connected through the wall unit pre-embedded joint column (3) and the wall unit steel skeleton (6), and the wall units between the upper and lower wall units are pre-embedded The joint column (3) is butted and poured inside the floor slab (13). 2. The prefabricated hybrid connected-limb wall system with pre-embedded joint steel beam sections according to claim 1, characterized in that: said pre-embedded joint steel beam sections (8) along the wall unit concrete wall ( 2) Arranged in the length direction, on which the shear studs (7) of the embedded parts are welded, and connected with the auxiliary reinforcement of the embedded joint steel beam section (9) through the auxiliary reinforcement connector (10). 3. The prefabricated hybrid connected-limb wall system with pre-embedded joint steel beam sections according to claim 2, characterized in that: the outer end of the pre-embedded joint steel beam section (8) exceeds the wall unit The length of the side edge of the concrete wall (2) ranges from 5 cm to 10 cm, and the inner end does not exceed one-third of the length of the concrete wall of the wall unit. 4. The prefabricated hybrid connected-limb wall system with pre-embedded joint steel beam sections according to claim 3, characterized in that: the upper surface of the pre-embedded joint steel beam sections (8) and the wall unit concrete The edge of the wall body is flush, and the end of the embedded part shear stud (7) connected to the upper surface of the pre-embedded joint steel beam section exceeds the edge of the concrete wall body of the wall unit. 5. The prefabricated hybrid connected-limb wall system with pre-embedded joint steel beam sections according to claim 4, characterized in that: the pre-embedded joint steel beam sections (8) are connected by welding or Bolted and welded joints. 6. The prefabricated hybrid connected-limb wall system with pre-embedded joint steel beam sections according to claim 1, characterized in that: one or more of the four sides of the wall unit concrete wall (2) are The rough surface or the wall unit keyway (5) is opened in the horizontal direction. 7. The prefabricated hybrid connected-limb wall system with pre-embedded joint steel beam sections according to claim 1, characterized in that: the wall unit reinforcement skeleton (6) consists of horizontal reinforcement, vertical reinforcement and tension A reinforced grid frame composed of tie bars tied between the two and wall unit joint column construction bars (4) arranged around the wall unit pre-embedded joint column (3). 8. The prefabricated hybrid connected-limb wall system with pre-embedded joint steel beam sections according to claim 1, characterized in that: said wall unit pre-embedded joint columns (3) and pre-embedded joint steel beams Section (8) is H-shaped steel or combined I-beam. 9. The fabricated hybrid connected-limb wall system with pre-embedded joint steel beam sections according to claim 8, characterized in that: the two flanges of the pre-embedded joint steel beam sections (8) are welded vertically There are pre-embedded joint steel beam section stiffeners (11), and the pre-embedded joint steel beam section stiffeners (11) do not exceed the edge of the concrete wall of the wall unit. 10. A construction method for a prefabricated hybrid connected wall system with pre-embedded joint steel beam sections as claimed in any one of claims 1 to 9, characterized in that it includes the prefabrication process and on-site assembly of wall units The operation is characterized in that the specific steps are as follows: Prefabrication process for wall units: Step 1, welding the embedded part shear studs (7) on the pre-embedded joint column (3) of the wall unit; Step 2, making the pre-embedded joint steel beam section (8); Step 3, correspondingly connect the pre-embedded joint column (3) of the wall unit and the pre-embedded joint steel beam section (8) at the design position; Step 4, according to the design requirements, bind the steel skeleton of the wall unit (6); Step five, and fix the wall unit joint column structural reinforcement (4) around the wall unit pre-embedded joint column (3); Step 6, support the pouring formwork of the wall unit (1), and perform horizontal keyway or rough surface treatment on one or more of the four sides of the upper, lower, left, and right sides as required; Step seven, pouring the concrete of the wall unit (1); Step 8: After pouring and curing, lift and demould through lifting rings to complete the prefabrication process of the wall unit; On-site assembly process of mixed limb wall: Step 1, transport the prefabricated wall units to the construction site, and start the on-site construction process; Step 2, connect the wall units in the vertical direction, and connect the pre-embedded joint columns (3) of the wall units of the upper and lower wall units with the reinforcement skeleton (6) of the wall units respectively; Step 3, connecting the wall units in the horizontal direction, correspondingly connecting the pre-embedded joint steel beam sections (8) of the left and right wall units, and filling the vertical joints with fillers (12); Step 4, binding the steel bars of the floor slab (13) and supporting its formwork; Step 5, pouring the concrete of the floor slab (13); Step 6, to be poured into shape and maintained; In step seven, repeat steps one to six in this process to complete the construction process of the entire prefabricated mixed limb wall system.