CN108678225A - The built-in steel plate combined shear wall of built-in presstressed reinforcing steel steel pipe concrete frame and the practice - Google Patents

Abstract

The steel plate composite shear wall with built-in prestressed steel pipe concrete frame and its method belong to the field of steel-concrete composite shear wall, and are composed of steel pipe concrete frame columns, prestressed tendons, steel plates and reinforced concrete shear walls. Set steel pipe concrete frame columns at both ends of the shear wall; and set prestressed tendons inside; connect the two steel pipe concrete frame columns with steel plates; bind the steel bars of the shear wall; The steel bars are connected to each other; the concrete is poured; the post-tensioning method is used to apply prestress to form a steel plate composite shear wall with built-in prestressed steel pipe concrete frame. Compared with ordinary concrete-filled steel tube frame shear walls and steel plate shear walls, the bearing capacity is improved, the bearing capacity and stiffness decay slowly, and the later seismic performance is stable. The existence of prestressed tendons also makes the shear walls recoverable, reducing the overall The displacement of the structure, the seismic performance is more superior; the construction of unbonded prestressed tendons is convenient, and it can be used in high-rise or large complex multi-storey buildings.

Description

Built-in prestressed steel tube concrete frame built-in steel plate composite shear wall and its method

technical field

The invention relates to a steel plate composite shear wall with a built-in prestressed steel pipe concrete frame and its method, which belongs to the field of building structures, and is a new type of steel-concrete composite shear wall that can improve the seismic performance of the structure and partially restore deformation after the earthquake and its production method.

Background technique

my country's high-rise and super high-rise buildings are developing rapidly. The super high-rise buildings above 300 meters in the 8th degree area and the super high-rise buildings above 400 meters in the 7th degree area have adopted steel-concrete composite shear wall core tube projects. Steel-concrete composite shear walls include various combinations of steel materials such as section steel, steel pipes, steel plates, and diagonal braces, and concrete in different parts of the shear wall. Steel structures such as steel plates can be embedded in the shear wall. . Adding concrete-filled steel tube frame columns on both sides of the shear wall can effectively improve the seismic performance of the shear wall and improve the shortcomings of the corner concrete, such as cracking and brittleness. However, the concrete cracking of the general concrete-filled steel tube frame combined shear wall Earlier, after the concrete was broken and damaged, the residual deformation was large and difficult to recover, the bearing capacity was reduced, and it was difficult to repair the damaged wall after the earthquake. Increasing the recoverability of the shear wall can effectively improve the service life of the shear wall and the post-earthquake repair. .

Adding prestressed tendons to the wall can make the structure recoverable. Generally, self-resetting shear walls add prestressed tendons to the wall to connect the wall to the foundation. , Setting vertical energy-dissipating parts in the middle or setting the middle as a normal connection and other connection methods to improve, which can reduce the residual deformation of the wall, but the resistance to lateral force is insufficient. At present, the requirements of the national code for buildings are becoming more and more stringent, and now they are developing towards the requirements of self-recovery, and there are more and more high-rise buildings, and the performance requirements for shear walls are getting higher and higher, so it is urgent to develop a new type with A steel-concrete composite shear wall that must be recoverable and has good seismic performance.

Contents of the invention

The invention aims at solving the problems of irrecoverability in earthquakes and insufficient bearing capacity, ductility and seismic energy dissipation capacity of shear walls. Combining the concrete-filled steel tube frame concrete composite shear wall with prestressed tendons, and arranging steel plates in the wall, a new type of steel-concrete composite shear wall with better seismic performance and certain recoverable performance is provided. It is mainly used Shear wall structure or cylinder structure for high-rise buildings or large complex multi-storey buildings.

The technical scheme that the present invention adopts is as follows:

The steel plate shear wall built in the steel pipe concrete frame with prestressed reinforcement is characterized in that it includes steel pipe concrete frame columns (1), prestressed tendons (2), steel plates (3) and reinforced concrete shear walls; the wall section is industrial Type, set steel pipe concrete frame columns (1) at both ends of reinforced concrete shear walls; The steel plate (3) is parallel to the direction of the wall; it is welded between the steel tube concrete frame column (1) and the steel plate (3); the symmetrical arrangement on both sides of the steel plate (3) is composed of horizontally distributed steel bars (6) and vertically distributed steel bars (7 ), and connect the reinforcement meshes on both sides through the reserved round holes of the steel plate (3) with tensioned steel bars (8); the upper and lower positions of the wall are provided with upper frame beams (9) and lower frame Beams or foundation beams (10); concrete-filled steel tube frame columns (1), upper frame beams (9), lower frame beams or foundation beams (10) and reinforced concrete shear walls are poured into concrete; The tension method stretches the prestressed tendons to the designed prestressed value, and fixes them with anchors (4) to form a steel plate composite shear wall with built-in prestressed tendons in the steel pipe concrete frame.

Further, the steel plate (3), the horizontal steel bar (6) and the steel tube concrete frame column (1) are all welded, and the gap between the steel mesh and the steel plate (3) must ensure that the pouring of concrete is not affected.

Further, the size of the concrete-filled steel pipe frame column (1) in the thickness direction of the wall is greater than the thickness of the wall body, and the cross-sectional form is circular, rectangular or polygonal. The upper and lower ends of the frame column (1) extend into the upper frame beam (9) and the lower frame beam or foundation beam (10) respectively.

Further, the prestressed tendons (2) are unbonded or partially bonded prestressed steel strands or prestressed threaded steel bars, and the finished unbonded prestressed steel strands are directly used, or the corrugated steel strands are coated with ordinary steel strands. A method for insulating concrete and steel strands by pipes, etc., is arranged inside the steel tube concrete frame column (1), and one or more prestressed tendons are evenly arranged in the frame column, and the tension of the prestressed steel strands controls the stress The value should not be less than 0.4 times the standard value of the ultimate strength of the prestressed tendon; the tensile stress control value of the prestressed threaded steel bar should not be less than 0.5 times the standard value of the yield strength of the prestressed threaded steel bar.

Further, the anchorage (4) is divided into a fixed-end anchorage and a tension-end anchorage, which are respectively fixed at both ends of the steel pipe concrete frame column and pressed against the backing plate.

Further, the backing plate (5) is placed on the two ends of the steel pipe concrete frame column and under the anchorage, its length and width are larger than the size of the steel pipe, and holes through which the prestressed tendons pass are reserved on the backing plate.

Further, the thickness of the steel plate (3) should ensure that the quality of concrete pouring will not be reduced, and holes are reserved at the positions where the tie bars are arranged; the tie bars (8) in the combined wall pass through the steel plate (3) The reserved holes connect the reinforcement mesh sheets formed by the horizontally distributed reinforcing bars (6) and vertically distributed reinforcing bars (7) on both sides of the wallboard.

Further, the horizontally distributed reinforcing bars (6) of the combined wall are connected to the steel pipe concrete frame column (1); the upper and lower ends of the vertically distributed reinforcing bars (7) respectively extend into the upper frame beam (9) and the lower frame beam or foundation beam ( Rigid connection in 10); the upper end of the vertically distributed steel bar (7) extends into the upper frame beam (9) for rigid connection, and the lower end of the vertically distributed steel bar (7) respectively extends into the lower frame beam or foundation beam (10) Make a rigid connection.

Further, the upper frame beam (9) and the lower frame beam or foundation beam (10) are reinforced concrete beams, or steel concrete beams with a rectangular cross-section, and the concrete is poured on site.

The method for preparing the steel plate shear wall with built-in prestressed steel reinforced concrete frame, is characterized in that: the production sequence is as follows:

1) Make steel tube concrete frame column (1), steel plate (3), and backing plate (5), reserve a round hole on the backing plate (5) to pass through the prestressing tendons, and reserve a round hole on the steel plate (3) to pass through For the round hole of the tie bar, the backing plate (5) is welded to the upper and lower ends of the steel tube concrete frame column (1), and the steel plate and the steel tube concrete frame column on both sides are welded;

2) Pass the prestressed tendon (2) through the corrugated pipe, pass through the interior of the steel tube concrete frame column, pass through the hole reserved in the backing plate, and fix it with the anchor (4) at the lower end;

3) Bind the steel bars of the concrete lower frame beam or foundation beam (10), and insert the steel plate-concrete steel tube frame with prestressed tendons and the vertically distributed steel bars of the shear wall into the reinforcement cage of the lower frame beam or foundation beam (10) Inside, pour the concrete of the lower frame beam or foundation beam (10), and ensure that the anchorage at the bottom of the prestressed tendon is close to the lower backing plate during pouring. After the concrete is cured and consolidated, the lower frame beam or foundation beam (10) and the steel plate- The rigid connection realized by the bottom of the steel tube concrete frame and the vertically distributed reinforcement of the shear wall, and the lower part of the prestressed tendon is at the fixed end;

4) Make the horizontal reinforcement (6), and weld the horizontal reinforcement to the steel tube concrete column; use the tie reinforcement (8) to form the horizontal reinforcement (6) and the longitudinal reinforcement (7) on both sides of the steel plate through the round hole reserved in the steel plate pull together;

5) Fabricate the upper frame beam (9) so that it is rigidly connected with the steel tube concrete frame column (1), the steel plate (3) and the vertically distributed steel bars (6) of the wall panel;

6) Leave the thickness of the concrete protective layer through the cement pads on both sides of the shear wall panel, fix the position of the corrugated pipe in the frame column of the steel pipe concrete, and keep it vertical, and then support the formwork for pouring concrete;

7) Concrete for pouring concrete-filled steel pipe frame columns (1), shear wall panels, and upper frame beams (9). There should be no concrete in the bellows for placing prestressed tendons in the pouring project, and demoulding after forming.

8) After forming, check whether the prestressed tendons remain unbonded, and if there are partial bonds, clean them up. After ensuring that there is no bond, use the post-tensioning method to stretch the prestressed tendons to the design prestressed value, and use anchors (4 ) fixed to form a steel plate composite shear wall with a built-in prestressed steel tube concrete frame.

The present invention is an advantageous combination of prestressed and steel-concrete combined structure by combining prestressed tendons with steel plate composite shear walls built in steel pipe concrete frames, and adopts the method of arranging prestressed tendons at the lower part of the shear wall where the stress is greater The structure of the CFST frame column in the area, while giving full play to the anti-seismic capacity of the built-in steel plate concrete composite wall, also makes full use of the anti-seismic energy consumption and recoverability of the prestressed tendons, avoiding the cracking of the concrete wall. , the bearing capacity of the wall decreases rapidly. After the prestressed reinforcement is added to the steel tube concrete column of the new composite shear wall, it has the following stress and functional characteristics: due to the long unbonded section of the prestressed steel strand or high-strength steel bar, even under a large earthquake When the steel tube concrete frame at the bottom of the wall is close to yield, the unbonded prestressed steel strands or high-strength steel bars set in the steel tube concrete frame are still in elasticity, and the recovery function is good after the earthquake. Under tensile load, the prestressed tendon bears the tensile force first, and the steel pipe and the prestressed tendon bear the tensile force together until the steel pipe is in the zero stress state. The tensile deformation of the steel pipe concrete is reduced, the steel pipe yield is delayed, and the tensile capacity of the member is significantly improved. When the tensile load is removed, the tensile deformation can be partially or fully recovered, thereby making the entire composite member functionally recoverable.

The steel tube concrete columns at both ends of the wall can effectively improve the seismic performance of the wall, adding steel plates to the reinforced concrete shear walls, and tightly connecting the steel plates with the reinforced concrete walls on both sides through tie bars, the concrete wall panels can effectively Constraining the out-of-plane buckling of the steel plate, when the earthquake load is input, give full play to the deformation and energy dissipation capacity of the steel, and effectively improve the vertical bearing capacity of the overall component. The steel plate and the reinforced concrete wall are combined into a whole, working together and complementing each other.

The steel plate combined shear wall with built-in prestressed tendon steel pipe concrete frame frame of the present invention has certain recoverability under earthquake action. When the earthquake energy is input, the reinforced concrete wall panel begins to function as an anti-seismic defense line. The steel pipe concrete frame and the built-in steel plate delay the appearance of cracks in the concrete wall, and the applied prestress can restore the deformation of the wall to a certain extent. The displacement of the overall structure is effectively reduced, and the vertical bearing capacity and restoring force of the concrete wall panel are improved. As the input energy increases, the concrete wall cracks and the CFST frame is close to yielding. The unbonded prestressed tendons set in the CFST frame are still elastic and can still constrain the displacement of the wall. The unbonded prestressed tendons have good cooperating performance with the steel plate composite shear wall embedded in the steel tube concrete frame. The unbonded prestressed tendons maintain elasticity during the stress process of the wall, and the applied prestress can constrain the wall Deformation makes the wall recoverable, the relative shear slip of the concrete wall is significantly reduced, the cracking is dispersed, and the bearing capacity, ductility and energy dissipation capacity are significantly improved compared with ordinary concrete shear walls and steel concrete shear walls. The post-seismic performance is relatively stable, and the unbonded prestressed post-tensioning construction is convenient, and it can be used in high-rise or large complex multi-storey buildings.

As the core anti-lateral force component of the building structure, the shear wall improves the anti-seismic capacity of the shear wall, and also improves the anti-seismic capacity and resilience of the entire structure. When the building encounters a strong earthquake, it can reduce its earthquake damage. It can be partially recovered afterwards.

Description of drawings

Figure 1 is a schematic diagram of the facade of the steel plate composite shear wall with built-in prestressed steel reinforced concrete frame

Figure 2 is a schematic diagram of the horizontal section of the composite shear wall

Figure 3 is a schematic diagram of the vertical section at the frame column of the composite shear wall

Figure 4 is a schematic diagram of the vertical section of the composite shear wall

Description of the accompanying drawings: 1-Concrete steel tube frame column, 2-Prestressed reinforcement, 3-Steel plate, 4-Anchor, 5-Back plate, 6-Horizontal distribution reinforcement, 7-Vertical distribution reinforcement, 8-Tie reinforcement , 9-upper border beam, 10-lower border beam or foundation beam.

Detailed ways

The present invention will be further described below in conjunction with specific embodiment:

Figure 1, Figure 2, Figure 3 and Figure 4 show the structural diagrams of a structural unit of the steel plate composite shear wall with built-in prestressed steel reinforced concrete frame.

The built-in prestressed steel pipe concrete frame has a built-in steel plate shear wall, which is composed of steel pipe concrete frame column 1, prestressed tendon 2, steel plate 3 and reinforced concrete shear wall. The main features are: the section of the wall is I-shaped, and the prestressed tendons are built in the frame column of the steel plate composite shear wall embedded in the steel tube concrete frame.

The "steel steel composite shear force inside the steel tube concrete frame" refers to a steel-concrete composite shear wall composed of steel tube concrete steel frame columns 1, steel plates 3, horizontal steel bars 6, and longitudinal steel bars 7.

The "concrete-filled steel pipe frame with built-in prestressing tendons" means that the prestressed steel strand 2 is placed in the steel pipe concrete frame column 1 to form a composite steel pipe concrete column.

The size of the concrete-filled steel pipe frame column 1 in the thickness direction of the wall is greater than the thickness of the wall body, and the cross-sectional form can be circular, rectangular, polygonal, etc., and the inside of the frame column can be a single-cavity concrete-filled steel pipe column or a multi-cavity concrete-filled steel pipe column. , and appropriate structural measures can also be added inside the cavity, such as welding studs on the inner wall of the steel pipe, adding vertical stiffeners, etc., and the upper and lower ends respectively extend into the upper frame beam 9 and the lower frame beam or the foundation beam 10, and the strength of the steel is taken from Q345.

The prestressed tendons 2 are unbonded or partially bonded prestressed steel strands or prestressed threaded steel bars, and the finished unbonded prestressed steel strands can be directly used, or the common steel strands can be coated with bellows, etc. The method of isolating the bonding between concrete and steel strands is arranged inside the frame column 1 of concrete filled steel pipe. One or more prestressed tendons can be arranged in the frame column, and the arrangement should be symmetrical. When arranging multiple prestressed tendons, the A partition is added in the middle, and the thickness of the partition is consistent with the thickness of the steel pipe. The net distance between the reserved holes of the two prestressed tendons should not be less than 50mm, and should not be less than 1.25 times the particle size of the coarse aggregate. The same arrangement shall be adopted, and the tensile control stress value of the prestressed steel strand shall not be less than 0.4 times the standard value of the ultimate strength of the prestressed tendon, and shall not be greater than 0.75 times the standard value of the ultimate strength of the prestressed tendon; The tensile stress control value should not be less than 0.5 times the standard value of the yield strength of the prestressed rebar, and should not be greater than 0.85 times the standard value of the yield strength of the prestressed rebar.

The anchorage 4 is divided into a fixed end anchorage and a tension end anchorage, which are respectively fixed on the two ends of the steel pipe concrete frame column and pressed on the backing plate, and the fixed end adopts an extrusion anchorage. Steel tapered anchors are used, and nut anchors are used for prestressed steel bars.

The backing plate 5 is placed at both ends of the steel pipe concrete frame column and under the anchorage. Its length and width are larger than the size of the steel pipe, and its thickness should not be less than 20mm. Hole, the size of the hole is more than 4mm larger than the diameter of the prestressed tendon.

The steel plate 3 is welded to the steel pipe concrete frame columns 1 on both sides, and placed in the center of the reinforced concrete wall. The thickness should ensure that the quality of concrete pouring will not be reduced, and it should be consistent with the thickness of the steel pipe. Reserve holes at the positions where the tie bars are arranged. .

The horizontally distributed steel bars 6 of the composite wall are connected to the steel pipe concrete frame column 1; the upper and lower ends of the vertically distributed steel bars 7 respectively extend into the upper frame beam 9 and the lower frame beam or foundation beam 10 for reliable rigid connection, and are distributed in all directions The reinforcement ratio should be greater than 0.25%, and the diameter of the reinforcement should not be less than 16mm. HRB400 grade hot-rolled reinforcement should be selected.

The tie bars 8 in the combined wall pass through the holes reserved in the steel plate 3 to tie the steel mesh sheet composed of the horizontally distributed steel bars 6 and vertically distributed steel bars 7 on both sides of the wallboard.

The upper frame beam 9 and the lower frame beam or foundation beam 10 are reinforced concrete beams, or steel concrete beams with a rectangular cross-section, and the concrete is poured on site.

Specifically, the concrete strength grade should not be lower than C 40.

The built-in prestressed steel reinforced concrete frame contains steel plate composite shear walls, and the fabrication sequence is as follows:

1) Make steel tube concrete frame column (1), steel plate (3), and backing plate (5), reserve a round hole on the backing plate (5) to pass through the prestressing tendons, and reserve a round hole on the steel plate (3) to pass through For the round hole of the tie bar, the backing plate (5) is welded to the upper and lower ends of the steel tube concrete frame column (1), and the steel plate and the steel tube concrete frame column on both sides are welded;

2) Pass the prestressed tendon (2) through the corrugated pipe, pass through the interior of the steel tube concrete frame column, pass through the hole reserved in the backing plate, and fix it with the anchor (4) at the lower end;

3) Bind the steel bars of the concrete lower frame beam or foundation beam (10), and insert the steel plate-concrete steel tube frame with prestressed tendons and the vertically distributed steel bars of the shear wall into the reinforcement cage of the lower frame beam or foundation beam (10) Inside, pour the concrete of the lower frame beam or foundation beam (10), and ensure that the anchorage at the bottom of the prestressed tendon is close to the lower backing plate during pouring. After the concrete is cured and consolidated, the lower frame beam or foundation beam (10) and the steel plate- Reliable rigid connection is realized at the bottom of the steel tube concrete frame and the vertically distributed reinforcement of the shear wall, and the lower part of the prestressed tendon is at the fixed end;

4) Make the horizontal reinforcement (6), and weld the horizontal reinforcement to the steel tube concrete column; use the tie reinforcement (8) to form the horizontal reinforcement (6) and the longitudinal reinforcement (7) on both sides of the steel plate through the round hole reserved in the steel plate pull together;

5) Fabricate the upper frame beam (9) so that it can be reliably and rigidly connected with the steel tube concrete frame column (1), the steel plate (3) and the vertically distributed steel bars (6) of the wall panel;

6) Leave the thickness of the concrete protective layer through the cement pads on both sides of the shear wall panel, fix the position of the corrugated pipe in the frame column of the steel pipe concrete, and keep it vertical, and then support the formwork for pouring concrete;

7) Concrete for pouring concrete-filled steel pipe frame columns (1), shear wall panels, and upper frame beams (9). There should be no concrete in the bellows for placing prestressed tendons in the pouring project, and demoulding after forming.

8) After forming, check whether the prestressed tendons remain unbonded. If there is some bonding, it should be cleaned properly. After ensuring that there is no bonding, a construction hole can be reserved at the tensioning end during construction to provide enough for the tensioning equipment. In the construction space, the post-tensioning method is used to stretch the prestressed tendons to the design prestressed value, and fix them with anchors (4) to form a steel plate composite shear wall with built-in prestressed tendons in the steel tube concrete frame.

The above is a typical embodiment of the present invention, and the practice of the present invention is not limited thereto.

Claims (10)

1. The built-in steel plate shear force wall of presstressed reinforcing steel steel pipe concrete frame built in 1., it is characterised in that：Including steel pipe concrete frame Column (1), presstressed reinforcing steel (2), steel plate (3) and reinforced concrete shear wall；Wall section is I-shaped, in steel reinforced concrete shearing force Steel pipe concrete frame column (1) is arranged in wall both ends；Presstressed reinforcing steel (2) is built in the built-in steel plate combination of steel pipe concrete frame and cuts In the frame columns of power wall；Wall direction steel plate (3) is arranged parallel to inside shear wall；In steel pipe concrete frame column (1) and Steel plate welds between (3)；The both sides of steel plate (3), which are arranged symmetrically, to be made of horizontal distribution reinforcing bar (6) and vertical distribution bar (7) Bar-mat reinforcement, be used in combination socket reinforcing bar (8) across steel plate (3) reserve circular hole the bar-mat reinforcement of both sides is socketed；The upper and lower of wall Install top grid beam (9) and following grid beam or foundation beam (10)；By steel pipe concrete frame column (1), top grid beam (9), under Frame beam or the forming of foundation beam (10) and reinforced concrete shear wall body disturbing concrete；After molding, it will be answered in advance using post stretching Power muscle is stretched to design prestress value, is used in combination anchorage (4) fixed, that is, constitutes the built-in steel of built-in presstressed reinforcing steel steel pipe concrete frame Board group combination shearing wall.
2. 2. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： Welding is all made of between steel plate (3), horizontal reinforcement (6) and steel pipe concrete frame column (1), between bar-mat reinforcement and steel plate (3) Gap will ensure that pouring for concrete is unaffected.
3. 3. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： Size of the steel pipe concrete frame column (1) in thickness of wall body direction is more than thickness of wall body, and section form is round, rectangle or polygon Shape, frame columns inside is using single-chamber body steel core concrete column or uses Multicarity concrete filled steel tube steel pipe concrete frame column (1) upper end lower end is respectively protruding into top grid beam (9) and following grid beam or foundation beam (10).
4. 4. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： The presstressed reinforcing steel (2) is the prestress wire or prestressing force spiral of soap-free emulsion polymeization or part adhesive, directly uses finished product Un-bonded prestressed steel strand, or completely cut off in common steel strand wires housing bellows the method for the bonding of concrete and steel strand wires, It is internal to be arranged in steel pipe concrete frame column (1), 1 or more presstressed reinforcing steels, prestress steel twist are evenly arranged in frame columns The control stress for prestressing value of line is no less than 0.4 times of presstressed reinforcing steel ultimate strength standard value；The tensioning of prestressing force spiral Stress Control value is not preferably less than 0.5 times of prestressing force spiral yield strength standard value.
5. 5. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： The anchorage (4) is divided into fixing end anchorage and stretching end anchorage, is separately fixed at the both ends of steel pipe concrete frame column, is pressed in pad On plate.
6. 6. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： The backing plate (5) at steel pipe concrete frame column both ends, pad in anchorage in the following, its length and width dimensions is all higher than the size of steel pipe, and On backing plate reserve presstressed reinforcing steel by hole.
7. 7. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： Steel plate (3) thickness should ensure that and concrete pouring quality will not be made to reduce, and in the position reserving hole of arrangement tension rib；Institute The steel tie (8) in assembled wall is stated to pass through the hole that steel plate (3) is reserved by the horizontal distribution reinforcing bar (6) of wallboard both sides and erect The reinforced mesh drawknot formed to distribution bar (7) gets up.
8. 8. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： The horizontal distribution reinforcing bar (6) of the assembled wall is connect with steel pipe concrete frame column (1)；Under vertical distribution bar (7) upper end End is respectively protruding into the rigid connection carried out in top grid beam (9) and following grid beam or foundation beam (10)；On vertical distribution bar (7) End, which is stretched into top grid beam (9), to be rigidly connected, and vertical distribution bar (7) lower end is respectively protruding into following grid beam or foundation beam (10) it is rigidly connected in.
9. 9. the built-in steel plate shear force wall of built-in presstressed reinforcing steel steel pipe concrete frame according to claim 1, it is characterised in that： The top grid beam (9) and following grid beam or foundation beam (10) are reinforced beam, or are girder with rolled steel section en cased in concrete, and section is square Shape, concrete cast in situs.
10. 10. preparing the built-in steel plate shearing of built-in presstressed reinforcing steel steel pipe concrete frame as described in any one of claims 1-9 The method of wall, it is characterised in that：Production order is as follows：

    1) steel pipe concrete frame column (1), steel plate (3), backing plate (5) are made, the circle across presstressed reinforcing steel is reserved on backing plate (5) Hole, reserves the circular hole across tension rib on steel plate (3), and backing plate (5) is welded on up and down the two of steel pipe concrete frame column (1) End, and steel plate and the steel pipe concrete frame column of both sides are welded；

    2) presstressed reinforcing steel (2) is passed through into bellows, by the inside of steel pipe concrete frame column, pierced from the hole that backing plate is reserved Go out, and is fixed with anchorage (4) in lower end；

    3) reinforcing bar of the following grid beam of binding concrete or foundation beam (10), and by steel plate-concrete filled steel tube with presstressed reinforcing steel The vertical distribution bar of frame, shear wall is inserted into the steel reinforcement cage of following grid beam or foundation beam (10), pours into a mould following grid beam or basis The concrete of beam (10) ensures that the anchorage of presstressed reinforcing steel bottom is close to lower part backing plate, after concrete curing consolidates, under making when pouring The rigidity that the bottom of frame beam or foundation beam (10) and steel plate-steel pipe concrete frame, the vertical distribution bar of shear wall is realized connects It connects, presstressed reinforcing steel lower part is in fixing end；

    4) production technique reinforcing bar (6), and horizontal reinforcement and steel core concrete column are welded；It is pre- by steel plate with steel tie (8) The circular hole stayed sockets the horizontal reinforcement (6) of steel plate both sides and longitudinal reinforcement (7) formation；

    5) top grid beam (9) is made, itself and steel pipe concrete frame column (1), steel plate (3) and the vertical distribution bar of wallboard (6) are made It is rigidly connected；

    6) thickness of concrete cover is reserved by spacer in shear wall wallboard both sides, fixed in steel pipe concrete frame column The position of bellows, and be allowed to keep vertical, the template of the concrete of branch cast later；

    7) concrete for pouring steel pipe concrete frame column (1), shear wall wallboard, top grid beam (9), poured in engineering and placed There cannot be any concrete in the bellows of presstressed reinforcing steel, be demoulded after molding；

    8) after being molded, check whether presstressed reinforcing steel keeps soap-free emulsion polymeization, if there are part adhesives to be cleared up, it is ensured that after soap-free emulsion polymeization, It using post stretching by tension of prestressed tendon to prestress value is designed, is used in combination anchorage (4) fixed, it is mixed to form built-in presstressed reinforcing steel steel pipe The built-in steel plate combined shear wall of solidifying soil frame.