阅读说明：本技术 现浇筒体结构与装配式框架结构结合的施工方法 (Construction method for combining cast-in-place cylinder structure with fabricated frame structure ) 是由 熊靖 彭宝安 于 2019-10-14 设计创作，主要内容包括：本发明公开了现浇筒体结构与装配式结构结合的施工方法,主要用于建筑工程领域中、高层住宅结构施工,它施工速度快,同时保证了建筑物的整体刚度；其施工方法是：1、先用滑模施工工艺施工现浇筒体部分至三层楼面标高处；2、进行一层及二层的装配式框架结构的吊装及拼装工作；3、将竖向钢筋龙穿过一层及二层的框架梁A的多个U形钢筋,其底部放在筒体的基础顶面上；4、向竖向通孔的空腔内注入混凝土,使现浇混凝土充满竖向通孔及多个水平孔的空腔内,待混凝土达到一定强度后,再进行三层及四层的筒体滑模施工；其他楼层的施工方法以此类推；框架梁A与筒体结合的端头预埋有多个U形钢筋,多个U形钢筋的位置与多个水平孔的位置一一对应。(The invention discloses a construction method for combining a cast-in-place cylinder structure with an assembled structure, which is mainly used for the construction of high-rise residential structures in the field of building engineering, has high construction speed and ensures the integral rigidity of buildings; the construction method comprises the following steps: 1. firstly, constructing a cast-in-place cylinder part to a three-layer floor elevation by using a slip form construction process; 2. hoisting and assembling the first-layer and second-layer assembled frame structures; 3. the vertical steel bar dragon penetrates through a plurality of U-shaped steel bars of the first-layer frame beam A and the second-layer frame beam A, and the bottom of the vertical steel bar dragon is placed on the top surface of the base of the cylinder; 4. injecting concrete into the cavity of the vertical through hole to enable the cast-in-place concrete to be filled in the cavities of the vertical through hole and the plurality of horizontal holes, and performing three-layer and four-layer barrel slip form construction after the concrete reaches certain strength; the construction methods of other floors are analogized in the same way; a plurality of U-shaped reinforcing steel bars are pre-embedded in the end of the frame beam A combined with the barrel, and the positions of the U-shaped reinforcing steel bars correspond to the positions of the horizontal holes one by one.)

1. The construction method for combining the cast-in-place cylinder structure with the fabricated structure is characterized in that: the cast-in-place cylinder structure is constructed in advance by adopting a slip form construction process, the construction of beams, columns and plates of the assembled frame structure is carried out in an inserting mode in the construction process of the cast-in-place cylinder structure, the beams, columns and plates of the assembled frame structure are hoisted and assembled on site, and the concrete construction method comprises the following steps: firstly, after the foundation engineering construction of a building is finished, constructing a cast-in-place cylinder part of an elevator room and a stairway to a three-floor elevation (18) by using a slip form construction process, and reserving a vertical through hole (10) and a plurality of horizontal holes (11) at a cylinder bearing beam (12); step two, carrying out the hoisting and assembling work of the frame column (8), the frame beam B (9), the frame beam A (7) and the floor slab of the one-layer and two-layer assembled frame structure in the construction process of the step one, assembling the frame column (8), the frame beam B (9) and the floor slab according to the prior art, respectively inserting a plurality of U-shaped reinforcing steel bars (14) of the frame beam A (7) into horizontal holes (11) corresponding to the bearing beam position (12) of the barrel body when assembling the frame beam A (7) of the one-layer and two-layer, and simultaneously enabling the plurality of U-shaped reinforcing steel bars (14) to enter a cavity of the vertical through hole (10), wherein the combined end part of the frame beam A (7) and the barrel body needs to be temporarily supported; thirdly, enabling the vertical steel bar dragon (13) to penetrate through a plurality of U-shaped steel bars (14) of the first-layer and second-layer frame beams A (7), and placing the bottoms of the U-shaped steel bars on the top surface of the foundation of the cylinder body, wherein the vertical steel bar dragon (13) is positioned in a cavity of the vertical through hole (10); step four, injecting concrete into the cavity of the vertical through hole (10) and carrying out grouting construction, so that the cavity of the vertical through hole (10) and the cavities of the plurality of horizontal holes (11) are filled with cast-in-place concrete, after the concrete reaches a certain strength, carrying out three-layer and four-layer barrel slip form construction, and simultaneously carrying out three-layer to four-layer assembly type member construction alternately; the construction methods of other floors are analogized, and when other floors are constructed, the upper-layer vertical steel bar dragon (13) needs to be welded and fixed with the vertical steel bars (15) of the lower-layer vertical steel bar dragon (13); a plurality of U-shaped steel bars (14) are embedded in the end, combined with the barrel, of the frame beam A (7), the positions of the U-shaped steel bars (14) correspond to the positions of the horizontal holes (11) one by one, and the U-shaped steel bars (14) are fixed with stressed main bars in the frame beam A (7); vertical reinforcing bar dragon (13) comprises many vertical reinforcing bar (15) of evenly arranging, many horizontal stirrups (16), and many horizontal stirrups (16) encircle many vertical reinforcing bar (15) of evenly arranging and are fixed with it, and vertical reinforcing bar dragon (13) also are as the atress reinforcing bar of a plurality of U-shaped reinforcing bar (14) of connecting frame roof beam A (7) simultaneously, and vertical reinforcing bar dragon (13) are the main muscle of atress of braced frame roof beam A (7).

Technical Field

The invention is mainly used for the construction of high-rise residential structures in the field of building engineering.

Background

In order to accelerate the construction progress and simultaneously not reduce the overall rigidity of a building, a high-rise residential building of our company is designed into a structural system combining a cast-in-place cylinder structure and an assembled frame structure, an elevator room and a stairway are designed into the cast-in-place cylinder structure to improve the overall rigidity of the building and resist earthquake loads and wind loads, in order to accelerate the construction progress, other rooms such as a living room, a bedroom, a kitchen and a toilet are designed into the assembled frame structure, so that two completely different construction processes of cast-in-place and assembly appear, the construction progress can be accelerated only by matching the two structures, and the problem facing us is how to connect the assembled frame structure and the cast-in-place cylinder structure.

Disclosure of Invention

The invention solves the problems, and the main construction method comprises the following steps: the cast-in-place cylinder structure is constructed in advance by adopting a slip form construction process, the construction of beams, columns and plates of the assembled frame structure is carried out in an inserting mode in the construction process of the cast-in-place cylinder structure, the beams, columns and plates of the assembled frame structure are hoisted and assembled on site, and the concrete construction method comprises the following steps:

firstly, after the foundation engineering construction of a building is finished, constructing a cast-in-place cylinder part of an elevator room and a stairway to a three-floor elevation (18) by using a slip form construction process, and reserving a vertical through hole (10) and a plurality of horizontal holes (11) at a cylinder bearing beam (12); step two, carrying out the hoisting and assembling work of the frame column (8), the frame beam B (9), the frame beam A (7) and the floor slab of the one-layer and two-layer assembled frame structure in the construction process of the step one, assembling the frame column (8), the frame beam B (9) and the floor slab according to the prior art, respectively inserting a plurality of U-shaped reinforcing steel bars (14) of the frame beam A (7) into horizontal holes (11) corresponding to the bearing beam position (12) of the barrel body when assembling the frame beam A (7) of the one-layer and two-layer, and simultaneously enabling the plurality of U-shaped reinforcing steel bars (14) to enter a cavity of the vertical through hole (10), wherein the combined end part of the frame beam A (7) and the barrel body needs to be temporarily supported; thirdly, enabling the vertical steel bar dragon (13) to penetrate through a plurality of U-shaped steel bars (14) of the first-layer and second-layer frame beams A (7), and placing the bottoms of the U-shaped steel bars on the top surface of the foundation of the cylinder body, wherein the vertical steel bar dragon (13) is positioned in a cavity of the vertical through hole (10); step four, injecting concrete into the cavity of the vertical through hole (10) and carrying out grouting construction, so that the cavity of the vertical through hole (10) and the cavities of the plurality of horizontal holes (11) are filled with cast-in-place concrete, after the concrete reaches a certain strength, carrying out three-layer and four-layer barrel slip form construction, and simultaneously carrying out three-layer to four-layer assembly type member construction alternately; the construction methods of other floors are analogized, and when other floors are constructed, the upper-layer vertical steel bar dragon (13) needs to be welded and fixed with the vertical steel bars (15) of the lower-layer vertical steel bar dragon (13); a plurality of U-shaped steel bars (14) are embedded in the end, combined with the barrel, of the frame beam A (7), the positions of the U-shaped steel bars (14) correspond to the positions of the horizontal holes (11) one by one, and the U-shaped steel bars (14) are fixed with stressed main bars in the frame beam A (7); vertical reinforcing bar dragon (13) comprises many vertical reinforcing bar (15) of evenly arranging, many horizontal stirrups (16), and many horizontal stirrups (16) encircle many vertical reinforcing bar (15) of evenly arranging and are fixed with it, and vertical reinforcing bar dragon (13) also are as the atress reinforcing bar of a plurality of U-shaped reinforcing bar (14) of connecting frame roof beam A (7) simultaneously, and vertical reinforcing bar dragon (13) are the main muscle of atress of braced frame roof beam A (7).

Drawings

1-elevator well A, 2-elevator well B, 3-staircase room, 4-elevator front room, 5-frame beam and barrel joint A, 6-frame beam and barrel joint B, 7-frame beam A, 8-frame column, 9-frame beam B, 10-vertical through hole, 11-horizontal hole, 12-barrel bearing beam, 13-vertical steel bar dragon, 14-U-shaped steel bar, 15-vertical steel bar, 16-horizontal stirrup, 17-second floor elevation and 18-third floor elevation.

Figure 1 is a schematic view of a cast-in-place cylinder structure in combination with a fabricated frame structure.

Fig. 2 is a schematic diagram of a barrel bolster 12 with a vertical through hole 10 and a horizontal hole 11 reserved.

Fig. 3 is a schematic view of the embedded U-shaped reinforcing bars 14 of the frame beam a7 before being inserted into the horizontal hole 11.

Fig. 4 is a schematic diagram of the vertical steel bar dragon 13 after being inserted into the embedded U-shaped steel bars 14 of the frame beam a 7.

Fig. 5 is a large drawing of a vertical steel bar dragon 13.

Fig. 6 is a schematic view of a plurality of horizontal holes 11 reserved at the barrel bolster 12.

Fig. 7 is an elevation view of the U-shaped reinforcing bars 14 pre-embedded in the frame beam a 7.

Fig. 8 is a plan view of the U-shaped reinforcing bars 14 pre-embedded in the frame beam a 7.

Detailed Description

Referring to fig. 1, the connection between the frame beam and the barrel structure is divided into two cases, one case is the case of the joint B6 between the frame beam and the barrel, and the frame beam B9 and the barrel wall of the barrel form a T shape, in this case, as long as a hole is reserved in the barrel wall of the barrel, the exposed stressed main rib of the frame beam B9 passes through the reserved hole of the barrel wall, and then the exposed stressed main rib of the frame beam B9 is fixed with the barrel wall of the barrel by a nut; the other is the case of a joint A5 of the frame beam and the cylinder body, 6 positions are provided, referring to fig. 3, the extension line of the right end of the frame beam A7 is superposed with the wall of the cylinder body, if the construction is carried out by using a conventional method of reserving and anchoring reinforcing steel bars, the stressed main reinforcing steel bars reserved at the right end of the frame beam A7 are difficult to be welded and fixed with the reinforcing steel bars of the cylinder body, because the cylinder body is constructed by adopting a sliding formwork firstly, and the cylinder body reinforcing steel bars butted with the frame beam A7 are unrealistic; the black filled parts of the frame in fig. 1 are an elevator shaft A1, an elevator shaft B2, an elevator front chamber 4 and a staircase 3, and the rooms are cast-in-situ cylinder parts; referring to fig. 4, after the vertical through hole 10 is grouted and the concrete reaches the strength, the vertical steel bar dragon 13, the plurality of U-shaped steel bars 14 at the right end of the frame beam a7 and the refilled concrete work together to resist the end bending moment load transmitted from the frame beam a7, meanwhile, the vertical steel bar dragon 13 and the refilled concrete work together to resist the vertical compressive stress transmitted from the frame beam a7, and the reinforcing steel bars are required to be designed around the vertical through hole 10 at the barrel bearing beam 12 according to the construction requirement; the reinforcing bars of other parts of the cylinder body are designed according to the conventional method; if the frame beam A7 is connected with the barrel through a conventional steel member at the joint A5 of the frame beam and the barrel, a steel plate needs to be embedded in the outer wall of the barrel at the joint A5 of the frame beam and the barrel, a connecting steel plate needs to be welded, the right end of the frame beam A7 needs to be embedded in the connecting steel plate, finally the connecting steel plate of the frame beam A7 is fixed with the connecting steel plate of the barrel through bolts and nuts, a large amount of steel is consumed by the design scheme, and the appearance of the exposed steel member is influenced.