CN202248450U

CN202248450U - Anti-floating locating device of core pipes of cast-in-place hollow floor slab

Info

Publication number: CN202248450U
Application number: CN2011203352428U
Authority: CN
Inventors: 黄跃森
Original assignee: FUJIAN ERJIAN CONSTRUCTION GROUP Corp
Current assignee: FUJIAN ERJIAN CONSTRUCTION GROUP Corp
Priority date: 2011-09-07
Filing date: 2011-09-07
Publication date: 2012-05-30
Anticipated expiration: 2021-09-07

Abstract

The utility model discloses an anti-floating locating device of core pipes of a cast-in-place hollow floor slab, which comprises the core pipes, anti-floating locating frames and a slab bottom rebar. The anti-floating locating device is characterized in that the anti-floating locating frames are made of phi 6 rebars and are two-hole type or four-hole type, the height of each anti-floating locating frame is sum of the diameter of one core pipe and the thickness of concrete designed at the bottom of the core pipe, and the distance between two core pipes reserved at two ends of the anti-floating locating frames serves as the length for lap joint binding. Two anti-floating locating frames are sleeved at the head portion and the tail portion of each core pipe respectively, the anti-floating locating frames and the slab bottom rebar are fixedly bound through 6# iron wires, the slab bottom rebar and an auxiliary keel of a template are fixedly bound through 8# iron wires, the head portions and the tail portions of the core pipes are sleeved in two-row holes or four-row holes of the anti-floating locating frames and arranged in the template, and the anti-floating locating frames and the slab bottom rebar are fixedly bound through the 6# iron wires. Accordingly, the core pipes can be effectively fixed in the slab, and accuracy of the absolute positions of the core pipes and relative positions between the core pipes and adjacent members are guaranteed.

Description

Cast-in-situ hollow floor plate core pipe anti-floating positioner

Technical field

The utility model relates to a kind of cast-in-situ hollow floor plate core pipe anti-floating positioner.

Background technology

Cast-in-situ hollow floor plate be in solid floor, place some according to respective rule the core pipe as the structure filler; Replace the part concrete; Core pipe (be called for short GZ) generally is that high-strength thin-wall pipe or foamed plastic rod have characteristics such as intensity height, wall are thin, light weight, and core pipe density relative current body concrete is very little; And concrete moulding is from having plasticity to losing plasticity, progressively being changed to solid concrete and having intensity and the process of hardness from fluidised form, in the fluid concrete; The core pipe will be discharged volume of concrete, and the core pipe will inevitably receive very big buoyancy, in addition; Be in the concrete of flow regime, aggregate sinks when vibrating, and is deposited on core pipe bottom easily; Cause the core pipe be squeezed the come-up and can't fall after rise; So core pipe as easy as rolling off a log come-up in the process of building, design requires very high to the relative position between core pipe absolute position and core pipe and the adjacent members, and the position that guarantees the core pipe of must adopting an effective measure does not change; Otherwise can influence the quality and the structural safety of floorslab concrete, bigger in the work progress to its reinforcing technique difficulty.

Summary of the invention

The purpose of the utility model is to provide a kind of cast-in-situ hollow floor plate core pipe anti-floating positioner, and it can effectively be fixed in the core pipe in the cassette ceiling at the bottom of the plate on the reinforcing bar, guarantees the absolute position of core pipe and the relative position between core pipe and the adjacent members.

The purpose of the utility model realizes through following technical scheme: described cast-in-situ hollow floor plate core pipe anti-floating positioner; Comprise reinforcing bar at the bottom of core pipe, anti-floating locating rack and the plate; It is characterized in that: described anti-floating locating rack adopts φ 6 reinforcement fabrications to form; Described anti-floating locating rack has amphithyrid or quadrifora; The diameter that the height of described anti-floating locating rack equals the core pipe adds the design concrete thickness at the bottom of the core pipe, reserves spacing between the two core pipes at anti-floating locating rack two ends as the length of overlap joint colligation; The tube head tail of described core pipe respectively overlaps an anti-floating locating rack respectively; Reinforcing bar is fixed through the colligation of 6# iron wire at the bottom of anti-floating locating rack and the plate; Reinforcing bar is fixed through the secondary joist colligation of 8# iron wire and template at the bottom of the plate; The anti-floating locating support is inserted in two rows of anti-floating locating support end to end together with it or the core pipe in four rounds is installed in template, and reinforcing bar is fixed through the colligation of 6# iron wire at the bottom of anti-floating locating support and the plate.

Described cast-in-situ hollow floor plate core pipe anti-floating positioner; It is characterized in that: below template, hole; Reinforcing bar and template secondary joist are fixed by a determining deviation colligation at the bottom of adopting the hole of being bored that the 8# iron wire passes the template bottom with plate; The template bottom is equipped with secondary joist, is connected with main joist under the secondary joist, and main joist connects formwork-support down.The anti-floating locating support also can be used as the upright positioning bar of frame of plate face reinforcing bar simultaneously.

The method for using of the utility model is following: the anti-floating locating support is made according to the concrete design size of cast-in-situ hollow floor plate core pipe, during installation earlier with the core pipe box on support, every tube head tail overlaps a support; Behind reinforcing bar binding at the bottom of the plate, hole below template according to template main joist position, adopt the 8# iron wire with plate at the bottom of reinforcing bar and template secondary joist fix by a determining deviation colligation; Overlapped two rows or four row's core pipes of support then and installed in plate, reinforcing bar is fixed through the colligation of 6# iron wire at the bottom of stent foot and the plate, thereby realizes fixing the core pipe.

Compared to prior art; The advantage of the utility model is: it can effectively be fixed in the core pipe in the plate; Guarantee the accuracy of the relative position between core pipe absolute position and core pipe and the adjacent members, make the core pipe be difficult for producing and rock, thereby prevent the core pipe from the process of building, occurring floating and cause displacement; Influence the quality problems such as quality and structural safety of floorslab concrete, guarantee construction quality.

Description of drawings

Fig. 1 is the sketch map of the cassette ceiling core pipe anti-floating locating support of the utility model.

Fig. 2 is the sketch map of the cast-in-situ hollow floor plate core pipe anti-floating positioner of the utility model.

Fig. 3 is the A-A sectional view of Fig. 2.

Label declaration: 1, φ 6 reinforcing bars; 2, core pipe; 3, anti-floating locating rack; 4, plate face reinforcing bar; 5, main joist; 6, template; 7, secondary joist; 8, reinforcing bar at the bottom of the plate; 9,8# iron wire; 10, formwork-support.

The specific embodiment

Below in conjunction with Figure of description and embodiment the utility model content is elaborated:

Embodiment sketch map like Fig. 1, Fig. 2 and a kind of cast-in-situ hollow floor plate core pipe anti-floating positioner that provides for the utility model shown in Figure 3; Comprise reinforcing bar 8 at the bottom of core pipe 2, anti-floating locating rack 3 and the plate; It is characterized in that: described anti-floating locating rack 3 adopts φ 6 reinforcing bars 1 to be made; Described anti-floating locating rack 3 has amphithyrid or quadrifora; The diameter that the height of described anti-floating locating rack 3 equals the core pipe adds the design concrete thickness at the bottom of the core pipe, and spacing d between the two core pipes is reserved as the length of overlap joint colligation in anti-floating locating rack 3 two ends; Described core tube head tail respectively overlaps an anti-floating locating rack 3 respectively; Anti-floating locating rack 3 is fixed through the colligation of 6# iron wire with reinforcing bar 8 at the bottom of the plate; Reinforcing bar 8 is fixed through secondary joist 7 colligations of 8# iron wire and template at the bottom of the plate; Core tube head tail is inserted in two rows or four rounds of anti-floating locating support 3 and installs in template 6, anti-floating locating support 3 is fixed through 1 colligation of 6# iron wire with reinforcing bar 8 at the bottom of the plate.The anti-floating locating support 3 that the utility model provides can be made according to the concrete design size of cast-in-situ hollow floor plate core pipe, earlier core pipe 2 is enclosed within on the anti-floating locating support 3 being enclosed within end to end on the anti-floating locating support 3 of every core pipe 2 during installation; After 8 colligations of reinforcing bar at the bottom of the plate, hole below template 6 according to main joist 5 positions of template 6, adopt 8# iron wire 9 that reinforcing bar at the bottom of the plate 8 and template secondary joist 7 are fixed by a determining deviation colligation; Overlapped two rows or four row's core pipes 2 of anti-floating locating support 3 then and installed in template 6, reinforcing bar 8 is fixed through 1 colligation of 6# iron wire at the bottom of the pin of anti-floating locating support 3 and the plate, thereby realizes fixing the core pipe.

Described template 6 bottoms are equipped with secondary joist 7, and secondary joist is connected with main joist 57 times, and main joist 5 times connects formwork-support 10, on anti-floating locating support 3, lay plate face reinforcing bar 4 and can play the frame of plate face reinforcing bar (4) position of halting is acted on.

Claims

1. cast-in-situ hollow floor plate core pipe anti-floating positioner; Comprise reinforcing bar at the bottom of core pipe (2), anti-floating locating rack (3) and the plate; It is characterized in that: described anti-floating locating rack (3) adopts φ 6 reinforcing bars (1) to be made; Described anti-floating locating rack (3) has amphithyrid or quadrifora; The diameter that the height of described anti-floating locating rack (3) equals the core pipe adds the design concrete thickness at the bottom of the core pipe, reserves spacing between the two core pipes at anti-floating locating rack (3) two ends as the length of overlap joint colligation; The tube head tail of described core pipe respectively overlaps an anti-floating locating rack (3) respectively; Anti-floating locating rack (3) is fixed through the colligation of 6# iron wire with reinforcing bar (8) at the bottom of the plate; Reinforcing bar at the bottom of the plate (8) is fixed through secondary joist (7) colligation of 8# iron wire and template; Anti-floating locating support (3) is inserted in two rows of anti-floating locating support (3) end to end together with it or the core pipe in four rounds is installed in template (6), and anti-floating locating support (3) is fixed through the colligation of 6# iron wire with reinforcing bar (8) at the bottom of the plate.

2. cast-in-situ hollow floor plate core pipe anti-floating positioner according to claim 1; It is characterized in that: boring below template (6); Reinforcing bar (8) is fixed by a determining deviation colligation with the template secondary joist at the bottom of adopting the hole of being bored that 8# iron wire (9) passes template (6) bottom with plate; Template (6) bottom is equipped with secondary joist (7), is connected with main joist (5) under the secondary joist (7), and main joist (5) connects formwork-support (10) down.