阅读说明：本技术 一种后安装的混凝土板下检修通道装置及其安装方法 (Post-installed concrete slab lower access passage device and installation method thereof ) 是由 杨革 段罗 刘于晖 唐小刚 司唐春 廖杰 张海江 黄通 况雨韩 吴鸿鹏 于 2021-08-11 设计创作，主要内容包括：本发明公开了一种后安装的混凝土板下检修通道装置及其安装方法,包括预埋件和检修通道,预埋件埋设于钢筋混凝土顶板内,检修通道的顶部与所述预埋件的底部固定连接,预埋件包括预埋件锚固钢筋和预埋钢板,预埋钢板位于钢筋混凝土顶板下底面处,检修通道吊杆的顶部与对应的预埋钢板底部固定连接。在混凝土板模板铺设完成后,对检修通道吊杆预埋件进行测量放样并标记；在顶板钢筋混凝土施工前,将检修通道吊杆预埋钢板埋设到位；顶板混凝土浇筑完成,混凝土强度达到设计要求后进行模板拆除；在下层楼板上按整体拼装检修通道,利用钢丝绳和链条葫芦等吊装设备进行吊装；吊装就位后,将检修通道吊杆固定在预埋钢板上。(The invention discloses a post-installed concrete slab lower overhaul channel device and an installation method thereof. After the concrete slab template is laid, measuring, lofting and marking the embedded part of the hanger rod of the overhaul channel; embedding a pre-embedded steel plate of an overhaul channel suspender in place before the construction of roof reinforced concrete; the top plate concrete pouring is completed, and the template is dismantled after the concrete strength reaches the design requirement; the access way is integrally assembled on the lower floor slab, and hoisting is carried out by using hoisting equipment such as a steel wire rope, a chain block and the like; and after the hoisting is in place, fixing the hanger rod of the maintenance channel on the embedded steel plate.)

1. The post-installed overhauling channel device under the concrete slab is characterized by comprising an embedded part (2) and an overhauling channel (3), wherein the embedded part (2) is embedded in a reinforced concrete top plate (1), the top of the overhauling channel (3) is fixedly connected with the bottom of the embedded part (2),

the embedded part (2) comprises embedded part anchoring steel bars (21) and embedded steel plates (22), the embedded steel plates (22) are located on the bottom surface of a reinforced concrete roof (1), the overhaul channel (3) comprises two overhaul channel longitudinal beams (33), a plurality of overhaul channel cross beams (34), a plurality of overhaul channel hanging rods (32) and an overhaul channel steel grating (35), the overhaul channel cross beams (34) are sequentially connected between the two overhaul channel longitudinal beams (33), the overhaul channel hanging rods (32) are perpendicularly connected onto the overhaul channel longitudinal beams (33), the overhaul channel steel grating (35) is laid on the overhaul channel cross beams (34), and the top of each overhaul channel hanging rod (32) is fixedly connected with the bottom of the corresponding embedded steel plate (22).

2. The post-installed concrete slab down service access apparatus as claimed in claim 1, wherein each embedment (2) includes two embedment anchor bars (21) and one embedment steel plate (22), each embedment anchor bar (21) includes a vertical bar (210) and a horizontal bar (211) integrally connected, a bottom of each vertical bar (210) is fixedly connected to an embedment steel plate (22), and the horizontal bar (211) is located between the bars (11) of the reinforced concrete top plate.

3. The post-installed concrete slab down service aisle device of claim 2, wherein a first connection steel plate (31) is fixedly connected to the top of the service aisle boom (32), a second connection steel plate (23) is fixedly connected to the bottom of the embedded steel plate (22), and the first connection steel plate (31) is fixedly connected with the second connection steel plate (23).

4. The post-installed concrete panel underpass apparatus as claimed in claim 3, wherein said first connecting steel plate (31) is fixedly connected to said second connecting steel plate (23) by bolts after abutting engagement.

5. A post-installed concrete panel manhole assembly according to claim 3 or 4, wherein one connecting steel plate (36) is fixedly connected to the top of each manhole hanger bar (32), and the bottom of the first connecting steel plate (31) is fixedly connected to the connecting steel plate (36).

6. A post-installed concrete panel underpass apparatus as claimed in claim 5 wherein a plurality of access way beams (34) are provided in parallel.

7. A method of installing an after-installed concrete panel access way arrangement according to claims 3-6 including the steps of:

the method comprises the following steps: after the top plate concrete slab template is laid, measuring, lofting and marking are carried out on the embedded part (2) through a total station, and a temporary support is arranged below the top plate concrete slab template;

step two: before the construction of the top plate reinforced concrete, embedding the embedded parts (2) in place in the top plate concrete slab template according to the marks;

step three: pouring the top plate concrete into the top plate concrete slab template, and removing the top plate concrete slab template and the temporary support after the concrete strength meets the design requirement;

step four: integrally assembling an overhaul channel (3) on a lower floor slab according to the span division of beam units, and hoisting the overhaul channel (3) to the embedded part (2) by using hoisting equipment (4) so that a first connecting steel plate (31) and a second connecting steel plate (23) are jointed and butted;

step five: and fixedly connecting the first connecting steel plate (31) with the second connecting steel plate (23) to finish the installation.

8. Method of installation of an after-installed access shaft arrangement under a concrete panel according to claim 7, characterized in that the hoisting equipment (4) is a wire rope or chain block.

Technical Field

The invention belongs to the technical field of civil engineering construction, and particularly relates to a post-installed concrete slab lower access way device and an installation method thereof.

Background

In the current installation of a steel beam access way, the access way is mainly installed before a concrete slab is cast and formed. When the long-span steel structure just bears upper portion fill out soil and driving load before not forming the system, then need set up temporary support in the bottom and support whole long-span steel construction, consequently can't install the access way earlier before structure system shaping, temporary support demolish (because the temporary support is located long-span steel construction below this moment, has occupied the installation space of access way).

Disclosure of Invention

The invention aims to provide a post-installed concrete slab lower access way device and an installation method thereof so as to solve the defects in the prior hoisting technology.

The technical solution to achieve the above object is as follows:

a post-installed maintenance channel device under a concrete slab comprises an embedded part and a maintenance channel, wherein the embedded part is embedded in a reinforced concrete top plate, the top of the maintenance channel is fixedly connected with the bottom of the embedded part,

the embedded part includes embedded part anchor reinforcing bar and pre-buried steel sheet, pre-buried steel sheet is located bottom surface department under the reinforced concrete roof, the access way includes two access way longerons, a plurality of access way crossbeam, a plurality of access way jib and access way steel grating, a plurality of access way crossbeams connect gradually between two access way longerons, and a plurality of access way jibs are connected perpendicularly on the access way longeron, the access way steel grating lay in on a plurality of access way crossbeams, the top of every access way jib and the pre-buried steel sheet bottom fixed connection that corresponds.

Furthermore, each embedded part comprises two embedded part anchoring steel bars and an embedded steel plate, each embedded part anchoring steel bar comprises a vertical steel bar and a horizontal steel bar which are integrally connected, the bottom of each vertical steel bar is fixedly connected with the embedded steel plate, and the horizontal steel bar is positioned between the steel bars of the reinforced concrete top plate.

Further, the top fixedly connected with first connecting steel plate of access way jib, pre-buried steel sheet bottom fixedly connected with second connecting steel plate, first connecting steel plate and second connecting steel plate fixed connection.

Furthermore, the first connecting steel plate and the second connecting steel plate are fixedly connected through bolts after being butted and attached.

Furthermore, the top of each access way suspender is fixedly connected with a connecting steel sheet, and the bottom of the first connecting steel plate is fixedly connected with the connecting steel sheet.

Further, a plurality of service aisle crossbeams are arranged in parallel.

The method of installing a post-installed access way installation under a concrete slab according to the above comprises the steps of:

the method comprises the following steps: after the top plate concrete slab template is laid, measuring, lofting and marking are carried out on the embedded part through a total station, and a temporary support is arranged below the top plate concrete slab template;

step two: embedding the embedded parts in the top plate concrete slab template in place according to the marks before the top plate reinforced concrete construction;

step three: pouring the top plate concrete into the top plate concrete slab template, and removing the top plate concrete slab template and the temporary support after the concrete strength meets the design requirement;

step four: integrally assembling an overhaul channel on the lower floor slab according to the span division of the beam units, and hoisting the overhaul channel to the embedded part by using hoisting equipment to enable the first connecting steel plate and the second connecting steel plate to be in fit butt joint;

step five: and fixedly connecting the first connecting steel plate with the second connecting steel plate to finish the installation.

Further, the hoisting equipment is a steel wire rope or a chain block.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention provides a post-installed concrete slab lower access channel device and an installation method thereof, which effectively solve the problem that the access channel cannot be installed when a temporary support exists in the previous period;

(2) the overhauling channel device under the concrete slab is simple and reasonable in combination design, and can be matched with an installation method to quickly realize hoisting and installation.

Drawings

FIG. 1 is a schematic cross-sectional view of an embedded part according to the present invention after being embedded.

Fig. 2 is a schematic view of the embedment structure of the invention.

Fig. 3 is a schematic structural diagram of an embedded steel plate according to the present invention.

Figure 4 is a schematic view of the service aisle construction of the present invention.

FIG. 5 is a schematic view of the connection between the hanger rod of the access way and the embedded steel plate.

Figure 6 is a schematic view of the integral hoisting of the access way of the present invention.

Fig. 7 is a sectional view taken along line 1-1 in fig. 6.

Detailed Description

The present invention is described in further detail below with reference to the attached drawing figures.

Referring to fig. 1-4, the post-installed concrete slab lower access channel device comprises an embedded part 2 and an access channel 3, wherein the embedded part 2 is embedded in a reinforced concrete top plate 1, the top of the access channel 3 is fixedly connected with the bottom of the embedded part 2,

combine fig. 2, built-in fitting 2 includes built-in fitting anchor reinforcing bar 21 and pre-buried steel sheet 22, pre-buried steel sheet 22 is located bottom surface department under the reinforced concrete roof 1, combines fig. 4, access way 3 includes two access way longerons 33, a plurality of access way crossbeam 34, a plurality of access way jib 32 and access way steel grating 35, a plurality of access way crossbeams 34 connect gradually between two access way longerons 33, and a plurality of access way jibs 32 are connected perpendicularly on access way longeron 33, access way steel grating 35 lays in on a plurality of access way crossbeams 34, the top of every access way jib 32 and the pre-buried steel sheet 22 bottom fixed connection that corresponds.

With reference to fig. 2, each embedded part 2 includes two embedded part anchoring bars 21 and one embedded steel plate 22, each embedded part anchoring bar 21 includes a vertical bar 210 and a horizontal bar 211 which are integrally connected, the bottom of each vertical bar 210 is fixedly connected with the embedded steel plate 22, and the horizontal bar 211 is located between the bars 11 of the reinforced concrete roof.

With reference to fig. 4-5, the top of the access way suspender 32 is fixedly connected with a first connecting steel plate 31, the bottom of the embedded steel plate 22 is fixedly connected with a second connecting steel plate 23, and the first connecting steel plate 31 is fixedly connected with the second connecting steel plate 23.

Preferably, the first connecting steel plate 31 and the second connecting steel plate 23 are fixedly connected by bolts after butt joint, and of course, other connection methods such as welding may be adopted as required.

Preferably, the top of each access way suspender 32 is fixedly connected with a connecting steel sheet 36, the bottom of the first connecting steel sheet 31 is fixedly connected with the connecting steel sheet 36, and the connecting steel sheet 36 is arranged to facilitate the connection between the first connecting steel sheet 31 and the access way suspender 32.

Preferably, a plurality of service access beams 34 are arranged in parallel.

The installation method of the access way device under the post-installed concrete slab comprises the following steps:

the method comprises the following steps: after the top plate concrete slab template is laid, measuring and lofting the embedded part 2 through a total station and marking the embedded part with paint, wherein a temporary support is arranged below the top plate concrete slab template;

step two: before the top plate reinforced concrete construction, embedding the embedded part 2 in the top plate concrete slab template in place according to the mark;

step three: pouring the top plate concrete into the top plate concrete slab template, and removing the top plate concrete slab template and the temporary support after the concrete strength meets the design requirement, as shown in fig. 1;

step four: integrally assembling the overhaul channel 3 on the lower floor slab according to the span division of the beam units, as shown in fig. 6-7, hoisting the overhaul channel 3 to the embedded part 2 by using hoisting equipment 4, so that the first connecting steel plate 31 is attached and butted with the second connecting steel plate 23;

step five: with first connecting steel plate 31 and second connecting steel plate 23 fixed connection, accomplish the installation, overhaul passageway 3 can be fixed in the below of reinforced concrete roof 1 after the installation is accomplished, if need can be with a plurality of overhaul passageways erection joint in proper order form the passageway of needs length, the maintainer can overhaul in the passageway, adopt this kind of device and mounting means, can realize concrete slab fast high-efficiently pour the installation of accomplishing the back plate under overhaul passageway. The high-altitude installation construction difficulty is reduced, the use times of hoisting equipment are reduced, the installation error is reduced, and the construction speed is effectively improved.

Preferably, the hoisting device 4 is a steel wire rope or a chain block.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.