CN107859206A - Pre-manufactured steel structure overlapped shear wall and its construction method - Google Patents

Abstract

The invention provides a prefabricated steel structure laminated shear wall and a construction method thereof. Prefabricated steel structure laminated shear wall panels, each shear wall includes two double-sided thermal insulation lightweight wall panels; each wall panel is equipped with longitudinal grooves, deep grooves, and multiple rows of transverse holes, running through the Groove; the left and right sides of the wall are self-locking components welded by multiple steel plates, and the wall can choose different link locks and end locks according to different nodes. The wall has a symmetrical structure up, down, left, and right, with multiple rows of horizontally penetrating steel bars inside, the longitudinal bars are lapped or welded to the transverse bars, and the short bars are welded at the junctions of the transverse bars and the longitudinal bars. The construction method of the prefabricated steel structure laminated shear wall includes the following steps: laying out wires on site, installing a temporary fixing frame; assembling the spliced shear wall in place, and connecting and fixing it with the temporary fixing frame; placing the prefabricated upper floor in place; laying hidden beam steel plates and Each additional reinforcement, laying pipelines; pouring high fluidity vibration-free concrete; proceed to the next floor for installation and construction.

Description

Prefabricated steel structure laminated shear wall and its construction method

technical field

The invention relates to the field of building technology, in particular to a prefabricated steel structure laminated shear wall and a construction method thereof.

technical background

Shear walls are also called wind-resistant walls, seismic walls or structural walls. Walls in houses or structures that mainly bear horizontal loads and vertical loads caused by wind loads or earthquakes to prevent structural shear damage.

The existing prefabricated shear wall structures mostly use sleeve grouting connections, steel bar welding connections or lap grout anchor connections, all of which have problems such as high cost, high construction precision requirements, and difficult construction, which make the implementation of prefabricated shear walls difficult. big.

Contents of the invention

In order to solve the above problems, the object of the present invention is to provide a prefabricated steel structure laminated shear wall panel with simple structure and capable of factory production, and to provide a shear wall composed of the above-mentioned wall panels, which can be spliced quickly , high prefabrication rate and low annual production cost; the invention also provides a convenient construction method for prefabricated steel structure laminated shear walls.

For above-mentioned purpose, the present invention is achieved through the following technical solutions:

The prefabricated steel structure laminated shear wall includes self-locking component 1 (1), self-locking component 2 (2), wall panels (3), and steel bars (4); the left and right sides of the prefabricated steel structure laminated shear wall On both sides are self-locking component one (1) and self-locking component two (2) welded by multiple steel plates; the prefabricated steel structure laminated shear wall includes two wall panels (3), two wall panels (3 ) are anchored together by self-locking member one (1) and self-locking member two (2) on both sides; the inner surface of each wallboard (3) is provided with several longitudinal grooves (3-1), and multiple rows The transverse hole (3-2) runs through the longitudinal groove (3-1); the reinforcing bar (4) is arranged in the longitudinal groove (3-1) and the transverse hole (3-2).

Wherein, the first self-locking component (1) and the second self-locking component (2) are welded by T-shaped steel (7) and channel steel (8) according to corresponding specifications and sizes.

Among them, the self-locking component one (1) is welded by two unequal T-shaped steels (7) and channel steels (8) according to the size, and its size is designed according to specific construction requirements; the two T-shaped steels ( One end of the flange of 7) is respectively welded to the two ends of the channel steel (8), and there is a gap between the webs of the two T-shaped steels (7), which is used for the T-shaped steel (7) of the self-locking component 2 (2) The web of the two T-shaped steels (7) and the channel steel (8) are provided with equidistant holes (6), and the equidistant holes (6) are one or more rows, and the equidistant holes ( The size of 6) can be designed according to the fluidity of concrete; there are also holes corresponding to the positions of the transverse holes (3-2) on the channel steel (8), and the holes are used to pass through the transverse through steel bars (4-1) and through the bolts ( 9) Fixed.

Among them, the self-locking component two (2) is welded by a piece of unequal T-shaped steel (7) and channel steel (8); one end of the web of the T-shaped steel (7) and the channel steel (8) The middle part of the channel steel (8) is welded with equidistant holes (6), and the equidistant holes (6) are one or more rows; the channel steel (8) is also provided with the horizontal holes (3-2) Corresponding holes, the holes are used to pass through the transverse steel bars (4-1) and are fixed by bolts (9).

Wherein, the upper, lower, left, and right sides of the wallboard (3) are symmetrical structures; the industrial material of the wallboard (3) is a mixed material of polystyrene particles, cement, water, and fly ash.

Wherein, the two wall panels (3) are anchored together by the angle steel type self-locking component one (1), the self-locking component two (2) and the internal steel bars (4) on both sides through bolts (9); Moreover, there is a hollow layer between the two wall panels (3), and concrete can be poured after hoisting.

Wherein, the reinforcing bar (4) is a reticular reinforcing bar, including a transverse penetrating reinforcing bar (4-1), a longitudinal penetrating reinforcing bar (4-2) and two wallboard connecting reinforcing bars (4-3); a transverse penetrating reinforcing bar (4- 1) It is connected with the longitudinal penetrating steel bar (4-2), and the connecting steel bar (4-3) is welded at the intersection point of the transverse penetrating steel bar (4-1) and the longitudinal penetrating steel bar (4-2), and the connecting steel bar (4-3 ) for connecting two wall panels (3).

Wherein, both ends of the transversely penetrating steel bar (4-1) pass through the transverse hole (3-2) on the wallboard (3) and protrude from the wallboard (3) by 1-2 cm, and the transversely penetrating steel bar (4-1) 1) The part protruding from the wall panel (3) is connected with self-locking component one (1) and self-locking component two (2) through bolts (9); both ends of the longitudinally penetrating steel bar (4-2) protrude from the overall wall panel (3) At the upper and lower ends, the longitudinal penetrating steel bar (4-2) is welded or overlapped with the transverse penetrating steel bar (4-1).

The construction method of the prefabricated steel structure laminated shear wall comprises the following steps:

① Set out the wires on site and install temporary fixing brackets, which are used to fix the wall panel (3) of the laminated shear wall and support the upper prefabricated floor;

② Prefabricated steel structure laminated shear walls, transported to the construction site;

③ Lift the wall panel (3) of the prefabricated steel structure laminated shear wall into place, and connect and fix it with the temporary fixing bracket;

Lifting the prefabricated upper floor and placing the prefabricated upper floor in place;

Lay hidden beam reinforcement (4) and each additional reinforcement, and lay pipelines;

Pouring vibration-free self-compacting high-fluidity concrete in the middle layer of the prefabricated shear wall panel (3) and on the prefabricated upper floor; proceed to the next layer for installation and construction.

Compared with the prior art, the benefits of the present invention are:

1. The material selection of the formwork for the wall has the advantages of energy saving, environmental protection, and economy. It is important to make the wall lightweight, which is conducive to improving the seismic performance; Heat insulation, sound insulation, fire prevention effect;

2. In the process of wall making, the formwork adopts the process of avoiding dismantling, which avoids the use of a large number of steel formwork, and reduces the process of dismantling the formwork, which is economical and simple;

3. Factory prefabrication is adopted, the product quality is stable, and energy consumption is saved;

4. The wall is light and high-strength, convenient for logistics and transportation, and easy to construct and install;

5. It has a wide range of applications and can be the main component of multi-storey load-bearing buildings and high-rise frame-filled walls;

6. The construction method is simple and the construction period is short.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the prefabricated steel structure laminated shear wall of the present invention.

Fig. 2 is a schematic diagram of both side elevations of the prefabricated steel structure laminated shear wall of the present invention.

Fig. 3 is an overall sectional view of the prefabricated steel structure laminated shear wall of the present invention.

Fig. 4 is a partially enlarged view of a wall panel of a prefabricated steel structure laminated shear wall of the present invention.

Fig. 5 is a schematic diagram of overlapping reinforcement of a prefabricated steel structure laminated shear wall according to the present invention.

Fig. 6 is a schematic elevation view of Embodiment 2 of the present invention.

Fig. 7 is a cross-sectional view of two wallboards combined in Embodiment 2 of the present invention.

Fig. 8 is an overall schematic diagram of the outer wall of Embodiment 3 of the present invention.

Fig. 9 is a top view of the joint of the outer wall according to Embodiment 3 of the present invention.

Fig. 10 is an overall schematic diagram of the interior wall of Embodiment 3 of the present invention.

Fig. 11 is a top view of the joint of the inner wall according to Embodiment 3 of the present invention.

Fig. 12 is an elevation view of the steel structure combination of Embodiment 3 of the present invention.

Fig. 13 is a schematic diagram of the connection between the self-locking component 1 and the wallboard of the present invention.

Fig. 14 is a schematic diagram of the connection between the second self-locking component and the wallboard of the present invention.

In the figure: 1, self-locking component 1; 2, self-locking component 2; 3, wall panel; 3-1, longitudinal groove; 3-2, transverse hole; 4, steel bar; 4-1, transverse penetrating bar; 4 -2. Longitudinal penetrating bars; 4-3. Connecting bars; 5. I-beams, 6. Equidistant holes, 7. T-beams, 8. Channel steels, 9. Bolts.

Detailed ways

The selected embodiments of the present invention are illustrated below with reference to the accompanying drawings. The following descriptions of the embodiments of the present invention disclosed by those skilled in the art are only exemplary and not intended to limit the technical solutions of the present invention.

Example 1

With reference to accompanying drawing 1-Fig. 5, shown in Fig. 13 and Fig. 14, a kind of prefabricated steel structure laminated shear wall, its wall panel 3 is a kind of novel prefabricated lightweight concrete wall panel, polystyrene, Cement, additives and water are used as raw materials. Through specialized mechanical equipment, cement polystyrene formwork panels with horizontal and vertical holes are manufactured (using it as a formwork), and self-compacting and vibration-free concrete is used to form horizontal, vertical A new type of prefabricated concrete wall panel with criss-cross grid members. The number of wall panels 3 is two, and the two wall panels 3 are anchored together by the angle steel self-locking component 1 and the self-locking component 2 2 on both sides, and there is a hollow layer between the two wall panels 3. After hoisting Concrete can be poured; each wall panel 3 is provided with multiple longitudinal grooves 3-1 and multiple transverse holes 3-2; the left and right sides of each wall panel 3 are anchored and connected by angle steel and internal steel bars 4 through bolts 9 Both ends of the transverse penetrating rib 4-1 pass through the wallboard 3 and pass through the angle steel 1-2cm to connect with the bolt 9, and the transverse penetrating rib 4-1 passes through the transverse hole 3-2 and passes through the wallboard 3 through the bolt 9 to connect with the bolt 9. The first locking member 1 and the second self-locking member 2 are connected; both ends of the longitudinal penetrating rib 4-2 protrude from the upper and lower ends of the integral wall panel 3, and the transverse penetrating rib 4-1 is welded or overlapped with the longitudinal penetrating rib 4-2.

The factory prefabrication process of prefabricated steel structure laminated shear wall panels: including two wall panels 3, the two wall panels 3 are connected by connecting steel bars 4-3, and an intermediate layer is provided between the two wall panels 3; each The wallboard 3 is provided with a plurality of transverse penetrating ribs 4-1 and a plurality of longitudinal penetrating ribs 4-2; the inner surface of each wallboard 3 is provided with a plurality of longitudinal grooves 3-1 along the longitudinal penetrating ribs 4-2; Both ends of the penetrating rib 4-1 protrude from both sides of the façade of the panel 3, and are connected with the angle steel bolts 9 on both sides, and the transverse penetrating rib 4-1 runs through the entire panel 3; The upper and lower end faces, and the longitudinal through rib 4-2 penetrates into the longitudinal groove 3-1, and can also be connected with steel beam bolts simultaneously.

Example 2

Referring to Figure 6 and Figure 7, it is the on-site splicing process of the prefabricated steel structure laminated shear wall: after the previous shear wall is fixed and formed, the self-locking member 2 of the second shear wall is docked with the previous shear wall The self-locking component 1 is docked and inserted from above, and the whole wall can be locked automatically by relying on self-locking component 1 and self-locking component 2, and the remaining walls are connected in sequence, and finally concrete is poured, and the high-fluidity concrete can be Automatically compact each wall, thus pouring into a whole. Self-locking component 1 and self-locking component 2 2 are self-locking tools, which can clamp two wall panels 3 of a single wall to form a wall, and are also the connecting parts when the two walls are docked, and finally cast High fluidity concrete. The shear wall panel is a single-piece shell formed by pouring and molding according to certain specifications and sizes; the two single-piece shells are molded together, and then locked by angle steel on the left and right sides.

With reference to accompanying drawing 7, a kind of prefabricated steel structure laminated shear wall, the horizontal direction of the prefabricated steel structure laminated shear wall has a plurality of prefabricated shear wall wall panels 3, the horizontal direction of the prefabricated laminated shear wall is through The T-shaped steel 7 and the channel steel 8 on the self-locking component 1 and the self-locking component 2 2 between two adjacent wall panels 3 are inserted and connected as one; the vertical direction of the prefabricated shear wall can be directly connected to the steel beam .

A kind of construction method of prefabricated steel structure laminated shear wall, comprises the following steps:

① There is no need for on-site formwork, and concrete can be poured after hoisting;

②The wall panel does not need precision docking due to its own structure, and only needs to be docked with self-locking component 1 and self-locking component 2 to enter the next step of construction;

③The components are easy to transport, not easy to damage, and have high self-strength forming rate;

The components are easy to install, and the whole set of construction can be completed without professional and technical personnel.

Example 3

Referring to Figures 8-12, the prefabricated steel structure laminated shear wall also includes the inner wall, outer wall and main beam internal steel skeleton - I-beam 5, which consists of multiple T-shaped steel materials at the bottom of the web Welded into ┻ shape or ╋ shape, as a connecting member, it can replace the structural ribs at beams, structural columns and edge joints—that is, it is poured into a structural steel skeleton. The thickness is designed according to the actual beam and slab size and the force requirements of the structural column. If necessary, the beam-column joints need to be cast with formwork.

On-site splicing process of prefabricated steel structure laminated shear wall interior wall and exterior wall: install three pieces of shear wall on site and fix them with temporary fixing brackets. This bracket is similar to construction scaffolding. The role of the body; hoisting the I-beam 5 inside the central structural column to ensure that the I-beam 5 is closely connected with each wall; The 4 bolts at the steel bars are connected; the concrete inside the wall is poured; the hidden beam I-beam concrete is poured after the formwork is supported.

The technical features not disclosed in the present invention are known technologies in the technical field.

The basic principles and advantages of the present invention are described above. The present invention is not limited by the above embodiments, and those skilled in the art can make many changes and improvements as required without departing from the scope of the present invention. The protection scope of the present invention should be defined by the appended claims and their equivalents.

Claims (9)

1. pre-manufactured steel structure overlapped shear wall, it is characterised in that：Including self-locking member one（1）, self-locking member two（2）, wallboard（3）、 Reinforcing bar（4）；The left and right sides of described pre-manufactured steel structure overlapped shear wall is the self-locking member one being welded by plurality of steel plates（1） With self-locking member two（2）；Pre-manufactured steel structure overlapped shear wall includes two blocks of wallboards（3）, two blocks of wallboards（3）Between by both sides from Lock construction element one（1）With self-locking member two（2）Anchoring is together；Every block of wallboard（3）Inner surface is provided with some longitudinal flutings（3-1）, And multiple rows of run through longitudinal fluting（3-1）Horizontal hole（3-2）；Reinforcing bar（4）It is arranged on longitudinal fluting（3-1）With horizontal hole （3-2）It is interior.

2. pre-manufactured steel structure overlapped shear wall according to claim 1, it is characterised in that：Described self-locking member one（1）With Self-locking member two（2）By T-steel（7）And channel-section steel（8）It is welded according to dimension size.

3. pre-manufactured steel structure overlapped shear wall according to claim 2, it is characterised in that：Described self-locking member one（1）By Two pieces of inequilateral T-steels（7）And channel-section steel（8）It is welded by size, its size is designed by Specific construction requirement；Two pieces of T Shaped steel（7）The one end on the edge of a wing be respectively welded at channel-section steel（8）Both ends, two pieces of T-steels（7）Web between leave space, use In self-locking member two（2）T-steel（7）Web pass through；Two pieces of T-steels（7）Web and channel-section steel（8）On be provided with equidistant holes Hole（6）, equidistant hole（6）To be a row or multi-row, equidistant hole（6）Size can be designed according to concrete flowability；Channel-section steel（8） On be additionally provided with and horizontal hole（3-2）The hole of position correspondence, hole are used for through extending transversely through reinforcing bar（4-1）And pass through bolt （9）It is fixed.

4. pre-manufactured steel structure overlapped shear wall according to claim 2, it is characterised in that：Described self-locking member two（2）By One piece of inequilateral T-steel（7）And channel-section steel（8）It is welded；The T-steel（7）Web one end and channel-section steel（8）Middle part weldering Connect, channel-section steel（8）On be provided with equidistant hole（6）, equidistant hole（6）To be a row or multi-row；Channel-section steel（8）On be additionally provided with and horizontal hole （3-2）The hole of position correspondence, hole are used for through extending transversely through reinforcing bar（4-1）And pass through bolt（9）It is fixed.

5. pre-manufactured steel structure overlapped shear wall according to claim 1, it is characterised in that：Described wallboard（3）Upper bottom left The right side is symmetrical structure；Wallboard（3）Industrial materials be：Granular polystyrene, cement, water, the mixing material of flyash.

6. pre-manufactured steel structure overlapped shear wall according to claim 1, it is characterised in that：Two blocks of described wallboards（3）Between Pass through the angle steel type self-locking member one of both sides（1）, self-locking member two（2）And internal reinforcing bar（4）Pass through bolt（9）It is anchored at one Rise；And two blocks of wallboards（3）Between be hollow layer, can casting concrete after lifting.

7. pre-manufactured steel structure overlapped shear wall according to claim 1, it is characterised in that：Described reinforcing bar（4）For net-shaped steel Muscle, including extend transversely through reinforcing bar（4-1）, longitudinally through reinforcing bar（4-2）Reinforcing bar is connected with two wallboards（4-3）；Extend transversely through reinforcing bar （4-1）With longitudinally through reinforcing bar（4-2）It is connected, connects reinforcing bar（4-3）It is welded in and extends transversely through reinforcing bar（4-1）With longitudinally through steel Muscle（4-2）Interface point at, connect reinforcing bar（4-3）For connecting two blocks of wallboards（3）.

8. pre-manufactured steel structure overlapped shear wall according to claim 7, it is characterised in that：Described extends transversely through reinforcing bar（4- 1）Both ends pass through wallboard（3）On horizontal hole（3-2）And stretch out wallboard（3）1-2cm, extend transversely through reinforcing bar（4-1）Stretch out Wallboard（3）Part pass through bolt（9）With self-locking member one（1）, self-locking member two（2）Connection；Longitudinally through reinforcing bar（4-2）'s The prominent integral wall in both ends（3）Upper and lower ends portion, longitudinally through reinforcing bar（4-2）With extending transversely through reinforcing bar（4-1）Welding or Overlap joint.

9. the construction method of pre-manufactured steel structure overlapped shear wall, it is characterised in that comprise the following steps：

1. live unwrapping wire, installs interim fixed support, fixed support is used for the wallboard for fixing overlapped shear wall（3）With support upper strata Precast floor slab；

2. pre-manufactured steel structure overlapped shear wall, transports to job site；

3. the wallboard of hoisting prefabricated steel structure overlapped shear wall（3）In place, it is connected with interim fixed support；

Hoisting prefabricated upper strata floor, prefabricated upper strata floor are in place；

Lay concealed beam reinforcing bar（4）And each additional muscle, lay pipeline；

In precast shear wall wallboard（3）Intermediate layer in and prefabricated upper strata floor on pour without vibration self-compaction high fluidity and mix Solidifying soil；Into next layer of installation.