CN1995571B

CN1995571B - Built-in steel truss concrete composite giant beam-column frame and its manufacturing method

Info

Publication number: CN1995571B
Application number: CN2006101698317A
Authority: CN
Inventors: 曹万林; 王敏; 张建伟
Original assignee: Beijing University of Technology
Current assignee: Cangzhou Architectural Design And Research Institute Co Ltd; Beijing University of Technology
Priority date: 2006-12-29
Filing date: 2006-12-29
Publication date: 2010-06-02
Anticipated expiration: 2026-12-29
Also published as: CN1995571A

Abstract

The giant beam-column frame with built-in steel truss concrete composite and the manufacturing method of the present invention belong to a kind of giant frame structure system used in high-rise buildings. The built-in steel truss concrete composite giant column is in the shape of a space cylinder. The section steel (6) in the corner column (3), the section steel diagonal support (9), and the steel bar diagonal support (10) constitute a steel truss. The steel bar diagonal support and the section steel diagonal support A spatial spiral in a giant column. A frame beam (14) is set in the frame beam of the concrete composite giant beam with a built-in steel truss, and the steel beam, the profile steel diagonal support (19) and the steel bar diagonal support (20) are combined to form a steel truss inside the concrete shear wall. The built-in steel truss concrete composite giant column of the present invention has better torsion resistance than ordinary giant columns, and has great strength and rigidity against lateral force. Concrete composite giant beams with built-in steel trusses have higher load-carrying capacity than ordinary giant beams, and the attenuation of bearing capacity and stiffness is slower, and the shear slip damage is reduced.

Description

Built-in steel truss concrete combined huge size beam column frame and preparation method

Technical field

The present invention is a kind of built-in steel truss concrete combined huge size beam column frame and preparation method, belongs to a kind of mega-frame that is used in the highrise building.

Background technology

In high residential building was built, large space and cost were the key factors of its development of restriction, and giant frame structure is applied to high residential building and puts forward at these problems.Giant frame structure is made up of main frame and time framework, also is referred to as the primary and secondary frame structure system.Main frame bears the vertical load that most horizontal loadings and aggregated(particle) structure transmit.The inferior framework that is made of common beam, post then is set between the twice main frame, in structure, only play the power consumption effect under booster action and the big shake, and be responsible for the flooring vertical load is passed to main frame, thereby beam cross-section is less and can form large space under main frame beam.Giant frame structure has that power transmission is clear and definite, good integrity, speed of application are fast, save material, can carry out the advantage of multiple form of structure and combination of materials.

In China, highrise building mostly is concrete structure, so the giant frame structure that has built up is the steel concrete giant frame structure.The mega-frame that the main frame of giant frame structure system is made up of large-scale component one huge beam that is different from common beam column notion and huge post.Main frame itself is exactly an absolute construction, and wherein the size of huge post is very big, and span surpasses the post distance of a frame-generic sometimes, and huge beam generally adopts the concrete crossbeam of height about one deck, every the several layers setting together.Main frame is main lateral resisting system, and huge beam and huge post belong to the important component of structure.

Huge beam of common steel concrete and huge post generally are huge box components.Huge post is made up of the quadruple shear wall, its loading characteristic is the space-load structure member, have than big-difference with the loading characteristic of plane primary structure member shear wall, but the relatively poor shortcoming of the ductility of shear wall still affects giving full play to of huge post anti-seismic performance to a certain extent.From loading angle, main frame can be counted as the compound of transformational structure under the vertical force effect and the rigid layer under the horizontal force action, different with the frame-generic structure, owing to the existence of the very big firm territory section in huge size beam column node place, the shear strain of huge post is very important.The arrangement of reinforcement of the shear wall of the huge post of existing formation is generally the steel mesh reinforcement that two rows are made up of horizontal and vertical distribution reinforcement, deficiencies such as its rigidity, bearing capacity and ductility cause breakoff phenomenons such as shear failure and the concrete crushing of pressurized wall limb bottom to take place, thereby structural entity is destroyed; The areas of plasticity hinge of bottom is little at the bottom of the wall, and the energy dissipation ability is lower; Shear wall easily causes the bearing capacity of huge post to reduce fast after occurring shearing diagonal crack.Huge beam not only will bear the deadweight of self, also will bear whole loads that supporting inferior framework thereon transmits.Concrete crossbeam ductility about existing first floor height is relatively poor, and the cracking back rigidity of structure takes place obviously to degenerate under the geological process, and the relative storey displacement angle increases very fast.Huge beam is supporting the several times deck, is main lateral resistant member, is again main vertical supporting member, and its surrender may cause main beam deformation excessive and influence the vertical bearing capacity of aggregated(particle) structure; The span of girder is big, and the absolute value of its amount of deflection is also big, if surrender too early may cause aggregated(particle) structure to destroy and damage of facilities, is difficult to its reparation after the earthquake.

Summary of the invention

Technical problem to be solved by this invention is the problem that significantly improves the mammoth structure shock resistance, has proposed a kind of mega-frame of built-in steel truss concrete combined huge size beam column.

The technical scheme that huge post of the present invention adopted is referring to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the built-in steel truss concrete combined huge size post that is provided, be the space tubular, its each face wall body is connected by the built-in steel truss concrete shear wall and is closed, is connected by shared corner post between the adjacent two sides shear wall.Dispose the steel mesh reinforcement of forming by horizontal and vertical distribution reinforcement in every shear wall slab, between steel mesh reinforcement, socket with connecting lacing wire 12, add between two row's distribution reinforcement nets and be furnished with the reinforcing bar bearing diagonal 10 that oblique tendon constitutes and the shaped steel bearing diagonal 9 of its core, reinforcing bar bearing diagonal 10 usefulness stirrups 11 retrain; Connected by shared corner post 3 between the shear wall of every two sides, corner post 3 adopts steel reinforced concrete structure, and the shaped steel 6 in the corner post 3 constitutes steel truss with shaped steel bearing diagonal 9, reinforcing bar bearing diagonal 10, and reinforcing bar bearing diagonal 10 and shaped steel bearing diagonal 9 are spatially spiral shape in huge post.

Described built-in steel truss concrete combined huge size post, in the floor height altitude range, (go up the Lower Half of floor and the first half of following floor) in every shear wall slab in the huge post and installing two reinforcing bar bearing diagonals 10 and two shaped steel bearing diagonals 9 respectively, two bearing diagonal arranged crosswise are X-shaped, corner post 3 anchorings are all stretched in the top and bottom of reinforcing bar bearing diagonal 10, the edge of a wing welding of the shaped steel 6 in shaped steel bearing diagonal 9 and the corner post 3.

The preparation method of built-in steel truss concrete combined huge size post of the present invention, its order is as follows:

1) configuration shaped steel 6 in the corner post 3 in four bights of huge post;

2) configuration shaped steel bearing diagonal 9 in each face shear wall, upper and lower side respectively with corner post in shaped steel 6 welding;

3) the vertical muscle 4 of shaped steel 6 exterior arrangement, vertical muscle outside colligation quadrangle stirrup 5;

4) shaped steel bearing diagonal 9 outside configuration reinforcement bearing diagonals 10 are at reinforcing bar bearing diagonal outside colligation bearing diagonal stirrup 11;

5) dispose the horizontal and

vertical distribution reinforcement

7,8 and the connecting lacing wire 12 of each face shear wall, form two reinforced mesh;

6) stay certain protective layer thickness, a template at the corner post stirrup and the shear wall wallboard reinforced mesh outside;

7) the disturbing concrete one-shot forming is the base section of the concrete combined huge size post of built-in steel truss;

8) on established shell portion top, repeatedly repeat above 7 steps, form the concrete combined huge size post of built-in steel truss.

The built-in steel truss concrete combined huge size post is a kind of space-load member, the reinforcing bar bearing diagonal is the similar effect that spiral hoop (regarding huge post as a perpendicular cantilever hollow unit) is from the bottom to top arranged in huge post, can play antitorque effect, have very big intensity and lateral resisting rigidity.Coupling beam still has the ability of bearing vertical load after destroying, so that structure is unlikely to collapse after the rarely occurred earthquake effect.Compare with the huge post of ordinary reinforced concrete, have better shock resistance.

The technical scheme that built-in steel truss concrete combined huge size beam of the present invention adopts is: the built-in steel truss concrete combined huge size beam, constitute by frame beam and shear wall slab, wherein the frame beam by upper side frame beam 13 ' and lower frame beam 13 " forms; in shear wall slab the configuration by horizontal and vertical distribution reinforcement 17; 18 compositions steel mesh reinforcements; between steel mesh reinforcement, socket; between two placing of reinforcement nets, add and join shaped steel bearing diagonal 19 and reinforcing bar bearing diagonal 20; section steel beam 14 is set in the frame beam with socketing reinforcing bar 22, section steel beam 14, shaped steel bearing diagonal 19 and 20 combinations of reinforcing bar bearing diagonal are at the inner steel truss that forms of concrete shear force wall.

Described built-in steel truss concrete combined huge size beam, shaped steel bearing diagonal 19 that disposes in the shear wall slab steel mesh reinforcement and reinforcing bar bearing diagonal 20 are the netted layout of herringbone, shaped steel bearing diagonal 19 and the upper end of reinforcing bar bearing diagonal 20 stretch into upper side frame beam 13 ' in be connected with section steel beam 14 in the beam, lower frame beam 13 is stretched in the lower end " in; be connected with section steel beam 14 in the lower frame beam; section steel beam 14 combinations in shaped steel bearing diagonal 19 and reinforcing bar bearing diagonal 20, the frame beam, at the inner steel truss that forms of concrete shear force wall.

Described built-in steel truss concrete combined huge size beam, shaped steel bearing diagonal 19 that installs in the shear wall slab steel mesh reinforcement and reinforcing bar bearing diagonal 20 are the netted layout of X-shaped, shaped steel bearing diagonal 19 and the upper end of reinforcing bar bearing diagonal 20 stretch into upper side frame beam 13 ' in be connected with section steel beam 14 in the beam, lower frame beam 13 is stretched in the lower end " in; be connected with section steel beam 14 in the lower frame beam; section steel beam 14 combinations in shaped steel bearing diagonal 19 and reinforcing bar bearing diagonal 20, the frame beam, at the inner steel truss that forms of concrete shear force wall.

The preparation method of built-in steel truss concrete combined huge size beam of the present invention, its order is as follows:

1) shaped steel 14 in the configuration frame beam;

2) configuration shaped steel bearing diagonal 19, upper and lower side respectively with the frame beam in shaped steel 14 welding;

3) at shaped steel 14 outside four jiaos of vertical muscle 15 of configuration frame beam, at the vertical muscle outside colligation of frame beam stirrup 16;

4) at shaped steel bearing diagonal 19 outside configuration reinforcement bearing diagonals 20, at reinforcing bar bearing diagonal outside colligation bearing diagonal stirrup 21;

5) the horizontal and vertical distribution reinforcement 17,18 and the connecting lacing wire 22 of the huge beam wallboard of configuration form two reinforced mesh;

6) stay certain protective layer thickness, a template at the frame beam stirrup and the wallboard reinforced mesh outside;

7) the disturbing concrete one-shot forming is the concrete combined huge size beam of built-in steel truss.

Built-in steel truss is a geometrically stable system in the built-in steel truss concrete combined huge size beam that the present invention adopts, and himself is a good force transfer system.In the transmission of power, shaped steel and concrete bonding do not play a major role, and are difficult for taking place bond damage.The existence of built-in steel truss has improved the bearing capacity of huge beam, has prevented the too early surrender of huge beam.Compare with common huge beam, supporting capacity improves, and bearing capacity and stiffness degradation are slower, and anti-seismic performance is relatively stable, and shearing slip destroys and alleviates.The main frame that huge size beam column constitutes is the main antidetonation parts of giant frame structure, has improved the shock resistance of huge size beam column, has also just improved the whole shock resistance of structure, when building meets with violent earthquake, can alleviate its earthquake, prevents that it from collapsing.

Description of drawings

Fig. 1 is the giant frame structure schematic diagram;

Fig. 2 is the layout schematic diagram of shaped steel bearing diagonal and reinforcing bar bearing diagonal in the built-in steel truss concrete combined huge size post of the present invention.Bearing diagonal in the shear wall of cylindrical shell is the schematic diagram that spatially spiral shape is risen, and wherein A1-B1-C1-D1-A2-B2-C2-D2, A2-B2-C2-D2-A3-B3-C3-D3, A3-B3-C3-D3-A4-B4-C4-D4, A4-B4-C4-D4-A5-B5-C5-D5 represent an element of construction of cylindrical shell respectively.A1-B2-B1-A2, A2-B3-B2-A3 are two X-shaped bearing diagonals in the shear wall;

Fig. 3 is an one side shear wall structure arrangement of reinforcement schematic diagram in the element of construction of built-in steel truss concrete combined huge size post of the present invention, and the arrangement of reinforcement schematic diagram of other three sides is identical with this figure;

Fig. 4 is an A-A section enlarged diagram among Fig. 3;

Fig. 5 is a B-B section enlarged diagram among Fig. 3;

Fig. 6 is that shaped steel bearing diagonal and reinforcing bar bearing diagonal are structural reinforcement schematic diagram when herringbone is netted arranges in the built-in steel truss concrete combined huge size beam of the present invention;

Fig. 7 is an A-A section enlarged diagram among Fig. 6;

Fig. 8 is a B-B section enlarged diagram among Fig. 6;

Fig. 9 is that shaped steel bearing diagonal and reinforcing bar bearing diagonal are structural reinforcement schematic diagram when X-shaped is netted to be arranged in the built-in steel truss concrete combined huge size beam of the present invention.

Wherein, among the figure:

The huge post of 1-, the huge beam of 2-, the 3-corner post, the vertical muscle in the 4-corner post, the quadrangle stirrup in the 5-corner post, shaped steel in the 6-corner post, the huge post wallboard of 7-transversely distributed steelbar, the vertical distribution reinforcement of the huge post wallboard of 8-, the built-in shaped steel bearing diagonal of the huge post of 9-, the built-in reinforcing bar bearing diagonal of the huge post of 10-, the stirrup of the huge post reinforcing bar of 11-bearing diagonal, the connecting lacing wire between two steel mesh reinforcements of the huge post of 12-, 13 '-the upper side frame beam, 13 " lower frame beam; the shaped steel in the frame beam of the huge beam of 14-, the frame beam of the huge beam of 15-is indulged muscle, the frame beam rectangle hoop of the huge beam of 16-; the huge beam wallboard of 17-transversely distributed steelbar; the vertical distribution reinforcement of the huge beam wallboard of 18-, the built-in shaped steel bearing diagonal of the huge beam of 19-, the built-in reinforcing bar bearing diagonal of the huge beam of 20-; the stirrup of the huge beam steel bearing diagonal of 21-, the connecting lacing wire between two steel mesh reinforcements of the huge beam of 22-.

The specific embodiment

In conjunction with the accompanying drawings the huge post embodiment of the present invention is described in further detail:

One side shear wall structure arrangement of reinforcement schematic diagram such as Fig. 3, Fig. 4 and shown in Figure 5 in the element of construction of built-in steel truss concrete combined huge size post, it is that shear wall slab by steel reinforced concrete corner post and built-in support constitutes.Its square cross section corner post 3 adopts steel reinforced concrete structures, and arrangement of reinforcement has the I-shaped shaped steel 6 of four reinforcing bars 4 and two intersections, along the vertical muscle of post equably colligation quadrangle stirrup 5, its stirrup distributes and connects in the full post height; The arrangement of reinforcement of shear wall is, along laterally and vertically arrange shear wall

slab reinforcing bar

7 and 8 respectively uniformly, and colligation is fixed in the crosspoint, forms two steel mesh reinforcements in both sides, and the two ends of reinforcing bar 7 are inserted the requirement of satisfying anchorage length in the corner post respectively and carried out anchoring.The configuration of bearing diagonal is, affixed symmetrically respectively the bearing diagonal that is made of reinforcing bar bearing diagonal 10 and shaped steel bearing diagonal 9 that is X-shaped in two steel mesh reinforcements of shear wall slab in the first half height zone of the Lower Half of last floor and following floor, shaped steel bearing diagonal 9 is positioned at the core of reinforcing bar bearing diagonal 10.Corner post 3 anchorings are all stretched in the top and bottom of reinforcing bar bearing diagonal 10, the edge of a wing welding of the shaped steel 6 in shaped steel bearing diagonal 9 and the corner post 3.Shaped steel 6 in the corner post 3 constitutes steel truss with shaped steel bearing diagonal 9.Four reinforcing bars outsides of the vertical muscle 10 of bearing diagonal are installing stirrup 11 equably, and reinforcing bar bearing diagonal 10, bearing diagonal shaped steel 9 connect into concrete bearing diagonal skeleton with uniform stirrup 11, behind the disturbing concrete, form the concrete bearing diagonal.Other constructional reinforcement has, and the connecting lacing wire 12 that is less than or equal to 600mm with spacing between two steel mesh reinforcements of seismic structural wall, earthquake resistant wall links to each other.

Preparation method is as follows:

2) configuration shaped steel bearing diagonal 9 in each face shear wall, upper and lower side respectively with corner post in shaped steel 6 welding, form X font bearing diagonal;

4) at shaped steel bearing diagonal 9 outside configuration reinforcement bearing diagonals 10, at reinforcing bar bearing diagonal outside colligation bearing diagonal stirrup 11;

5) dispose the horizontal and

vertical distribution reinforcement

7) the disturbing concrete one-shot forming is the base section of the concrete combined huge size post of built-in steel truss.

8) on established shell portion top, repeatedly repeat above 6 steps, form the concrete combined huge size post of built-in steel truss.

Embodiment to the huge beam of the present invention is described in further detail in conjunction with the accompanying drawings:

Embodiment 1

The structural reinforcement schematic diagram of built-in steel truss concrete combined huge size beam such as Fig. 6, Fig. 7 and shown in Figure 8, it is by steel reinforced concrete frame beam and constitutes with the shaped steel bearing diagonal 19 of the netted layout of built-in herringbone and the concrete shear force wall plate of reinforcing bar bearing diagonal 20.The section steel beam of its frame beam is an i iron 14, and the vertical muscle 15 of configuration is all around indulged muscle colligation rectangle hoop 16 equably along beam, and the stirrup of frame beam is evenly distributed to beam-ends; The arrangement of reinforcement of shear wall is, vertically arrange shear wall slab transverse reinforcement 17 and longitudinal reinforcement 18 in both sides respectively equably along laterally reaching, and colligation is fixed in the crosspoint, forms two steel mesh reinforcements, insert respectively in the frame beam at the two ends of longitudinal reinforcement 18, and make it satisfy the requirement of anchorage length respectively.The configuration of bearing diagonal is, four reinforcing bar bearing diagonals 20 of configuration in two steel mesh reinforcements of shear wall slab, and reinforcing bar bearing diagonal 20 inside are provided with shaped steel bearing diagonal 19, and reinforcing bar bearing diagonal 20 outsides are installing stirrup 21 uniformly.Its upper end stretch into upper side frame beam 13 ' in be connected with section steel beam 14 in the beam, lower frame beam 13 is stretched in the lower end " in be connected with section steel beam 14 in the lower frame beam; 14 combinations of section steel beam in shaped steel bearing diagonal 19 and reinforcing bar bearing diagonal 20, the frame beam, at the inner steel truss that forms of concrete shear force wall.The connecting lacing wire 22 that is less than or equal to 600mm with spacing between two steel mesh reinforcements of shear wall links to each other.

1) shaped steel 14 in the configuration frame beam;

Embodiment 2

Second kind of form of structure of built-in steel truss concrete combined huge size beam is shaped steel bearing diagonal 19 and the reinforcing bar bearing diagonal 20 that the netted layout of X-shaped is set in two steel mesh reinforcement inboards of shear wall slab as shown in Figure 9.Others are identical with first kind of form.

Claims

1. The built-in steel truss concrete composite giant column is in the shape of a space cylinder, and each wall is connected by a built-in steel truss concrete shear wall to form a closed shape, and the two adjacent shear walls are connected by a shared corner column; Each shear wall panel is configured with a reinforcement mesh composed of horizontal and vertical distribution reinforcements, and the reinforcement meshes are connected with tension reinforcement bars (12), which is characterized in that: an oblique The steel bar diagonal support (10) formed by the steel tendon and the section steel diagonal support (9) at its core, the steel bar diagonal support (10) is restrained by stirrups (11); between each two shear walls are shared corner columns (3) connection, the corner column (3) adopts a reinforced concrete structure, and the section steel (6) in the corner column (3) forms a steel truss with the section steel diagonal brace (9) and the steel bar diagonal brace (10), and the steel bar diagonal brace (10) and the section steel diagonal brace ( 9) Spatial spiral in megacolumns.

2. The giant concrete composite column with built-in steel truss according to claim 1, characterized in that: each shear wall panel in the giant column is within the height range of the storey, that is, the lower half of the upper floor and the lower floor The upper half of the upper part is respectively fixed with two steel bar diagonal supports (10) and two profiled steel diagonal supports (9). The two diagonal supports are arranged crosswise in an X shape. 3) Anchoring, welding of the flanges of the profiled steel (6) in the profiled steel oblique support (9) and the corner post (3).

3. The built-in steel truss concrete composite giant beam is composed of frame beams and shear wall panels. The frame beams are composed of upper frame beams (13′) and lower frame beams (13″). The shear wall panels are configured by The reinforcement mesh composed of transversely distributed reinforcement bars (17) and longitudinal distribution reinforcement bars (18) is stretched and connected between the reinforcement meshes with tensioned reinforcement bars (22). ) and reinforced diagonal braces (20), the frame beams are provided with shaped steel beams (14), the shaped steel beams (14), shaped steel diagonal braces (19) and steel reinforced diagonal braces (20) are combined to form a steel truss inside the concrete shear wall .

4. The giant concrete composite beam with built-in steel truss according to claim 3, characterized in that: the profiled steel diagonal supports (19) and reinforced steel diagonal supports (20) arranged in the steel mesh of the shear wall panel are in the shape of a herringbone network Arrangement, the upper ends of the shaped steel slant supports (19) and steel bar slant supports (20) extend into the upper frame beam (13') to connect with the beam medium-sized steel beam (14), and the lower ends extend into the lower frame beam (13 "), and The lower frame beam is connected with the medium-sized steel beam (14), and the steel slant support (19) is combined with the steel bar diagonal support (20) and the steel beam (14) in the frame beam to form a steel truss inside the concrete shear wall.

5. The built-in steel truss concrete composite gigantic beam according to claim 3, characterized in that: the profiled steel diagonal supports (19) and reinforced steel diagonal supports (20) fixed in the steel mesh of the shear wall panel are in an X-shaped network Arranged in the same shape, the upper ends of the shaped steel diagonal supports (19) and steel bar diagonal supports (20) extend into the upper frame beam (13') to connect with the middle-shaped steel beam (14), and the lower ends extend into the lower frame beam (13"), It is connected with the medium-sized steel beam (14) of the lower frame beam, and the steel slant support (19) is combined with the steel bar diagonal support (20) and the steel beam (14) in the frame beam to form a steel truss inside the concrete shear wall.

6. The manufacturing method of the built-in steel truss concrete composite giant column is characterized in that: comprising the following steps:

1) Configure section steel (6) in the corner columns (3) at the four corners of the giant column;

2) A profiled steel oblique support (9) is arranged in each shear wall, and the upper and lower ends are respectively welded to the profiled steel (6) in the corner column;

3) The profile steel (6) is equipped with longitudinal reinforcement (4) externally, and the outside of the longitudinal reinforcement is bound with quadrilateral stirrups (5);

4) A steel bar diagonal support (10) is arranged on the outer side of the shaped steel diagonal support (9), and the diagonal support stirrups (11) are bound outside the steel bar diagonal support;

5) Configure horizontally and vertically distributed steel bars (7, 8) and tie bars (12) of the shear walls on each surface to form two steel mesh sheets;

6) Leave a certain thickness of protective layer on the outside of the corner column stirrup and the steel mesh of the shear wall panel to support the formwork;

7) The bottom part of the concrete composite giant column with built-in steel truss is formed by pouring and ramming the concrete at one time;

8) On the upper part of the formed cylinder, repeat the above 7 steps several times to form a concrete composite giant column with built-in steel truss.

7. The manufacturing method of built-in steel truss concrete composite giant beam is characterized in that: comprising the following steps:

1) configure the profiled steel (14) in the frame beam;

2) Configure profiled steel oblique supports (19), the upper and lower ends of which are respectively welded to the profiled steel (14) in the frame beam;

3) Arranging frame beam longitudinal reinforcement (15) at the outer four corners of the profile steel (14), and binding stirrups (16) outside the frame beam longitudinal reinforcement;

4) Arranging a steel bar diagonal support (20) on the outer side of the steel bar diagonal support (19), and binding the diagonal support stirrups (21) on the outer side of the steel bar diagonal support;

5) Configure the horizontal and vertical distribution reinforcement bars (17, 18) and tie bars (22) of the giant beam wall panels to form two reinforcement mesh sheets;

6) Leave a certain thickness of protective layer on the outer side of frame beam stirrups and wall panel reinforcement mesh to support formwork;

7) The poured concrete is formed into a concrete composite giant beam with built-in steel truss at one time.