CN202194317U

CN202194317U - Guide rail structure for cast-in-site concrete slope surface

Info

Publication number: CN202194317U
Application number: CN201120297200XU
Authority: CN
Inventors: 刘小宜; 邓小华; 胡美风; 蓝九元; 李文新; 杨阳
Original assignee: JIANGXI FIRST CONSTRUCTION ENGINEERING Corp
Current assignee: JIANGXI FIRST CONSTRUCTION ENGINEERING Corp
Priority date: 2011-08-16
Filing date: 2011-08-16
Publication date: 2012-04-18
Anticipated expiration: 2021-08-16

Abstract

The utility model discloses a guide rail structure for a cast-in-site concrete slope surface, which comprises a mold plate laid on the slope surface, and girder plate steel bars erected on the mold plate; each girder plate steel bar comprises two layers (namely a plate bottom steel bar and a plate surface steel bar); a steel bar guide rail is arranged on the girder plate steel bars, and is firmly welded with the girder plate steel bars through guide rail supports; and the elevation of the surface of the guide rail is the same as the structural elevation of a roof panel. The guide rail with simplicity and convenience in operation and practicability is provided according to the structural characteristics of a slope roof to ensure concrete cast quality, and has the advantages that the investment cost is low; the operation is simple; a mortar leveling layer of the roof is eliminated; the construction period is shortened; mechanical cost and material cost are reduced; vertical transportation pressure and construction cost are reduced; and quality problems such as hollowing, cracking and the like caused by poor combination, incomplete substrate cleaning and insufficient maintenance during the construction of the mortar leveling layer of the roof are avoided.

Description

A kind of guide rail structure that is used for slope cast-in-situ concrete

Technical field

the utility model relates to the realm of building construction, specifically is a kind of guide rail structure that is used for the slope cast-in-situ concrete of the density between 25 °～60 °.

Background technology

along with the development of builing industry, caters to people's demand that variation selects of living, in recent years, in architectural design, demonstrate many new and original, appear the pitched roof structure various.But often, be prone to cause the concreting leakiness, very easily cause seepage owing to selection of construction method in the construction of pitched roof is improper.

, because the concrete aggregate sliding force is less, so is vibrated, are built after can individual layer bottom surface template being installed with reference to the job practices that beam slab is arranged when concreting for the pitched roof of design grade less than 25 °; Water after then can construction and installation double template greater than 60 ° pitched roof for design grade and to smash with reference to shear wall.This job practices is applicable to the pitched roof structure of the density of common design grade between 25 °～60 °.

Summary of the invention

to the problems referred to above, and the utility model aims to provide the simple in structure of a kind of pitched roof structure that is applicable to the density of common design grade between 25 °～60 ° and can guarantee the guide rail structure of pouring quality.

are for realizing this technical purpose; The scheme of the utility model is: a kind of guide rail structure that is used for slope cast-in-situ concrete, comprise the template that is laid on the slope, and be set up in the beam reinforced steel bar on the template; This beam reinforced steel bar by plate at the bottom of reinforcing bar and plate face reinforcing bar bilayer constitute; The reinforcing bar guide rail is set on beam reinforced steel bar, and guide rail and beam reinforced steel bar are through the rail support firm welding, and the guide pass absolute altitude is the room panel structure absolute altitude.

have additional between the double-deck muscle net of reinforcing bar and plate face reinforcing bar at the bottom of the plate and support the split heads muscle as preferred.

as preferred, reinforcing bar is connected carrying with template through cushion block at the bottom of the plate of said beam reinforced steel bar.

the utility model uses a kind of operation to be prone to letter to the pitched roof design feature, and practicable guide rail guarantees concrete pouring quality; Its input cost is low; Operate simple and easy, cancellation roofing mortar levelling layer, reduction of erection time; Minimizing machinery takes, cost of materials, reduces vertical transport pressure and construction cost; Avoided roofing mortar levelling layer when construction because combine not firm, base cleaning is unclean, the not enough and hollowing that occurs of maintenance, quality problems such as crackle.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The specific embodiment

explain further details to the utility model below in conjunction with accompanying drawing and specific embodiment.

are as shown in Figure 1; The guide rail structure that is used for slope cast-in-situ concrete in the present embodiment, it comprises the template 1 that is laid on the slope, is set up in the beam reinforced steel bar on the template 1; This beam reinforced steel bar by plate at the bottom of reinforcing bar 21 constitute with plate face reinforcing bar 22 bilayers; Reinforcing bar guide rail 4 is set on beam reinforced steel bar, and guide rail 4 passes through rail support 5 firm welding with beam reinforced steel bar, and the guide pass absolute altitude is the room panel structure absolute altitude.Have additional between reinforcing bar 21 and the plate face reinforcing bar 22 double-deck muscle nets at the bottom of the plate and support split heads muscle 3.Reinforcing bar 21 is connected carrying with template through cushion block 6 at the bottom of the plate of beam reinforced steel bar.

Existing with regard to most preferred embodiment and embodiment explanation thereof:

the utility model the construction principle be after installing the pitched roof beam reinforced steel bar on request; The reinforcing bar guide rail is set on beam reinforced steel bar; Guide rail and beam reinforced steel bar firm welding (the guide pass absolute altitude is the room panel structure absolute altitude) in the roofing concrete casting process, adopt 4 meters floating rules at guide rail soil the concrete of pouring into a mould to be carried out the levelling of plate face; Control concrete surface absolute altitude; Through strictness control to concrete planeness, absolute altitude etc., be the smooth requirement that the roof structure plate reaches floated coat, the purpose of cancellation roof panel leveling layer.

Construction technology process and key points for operation:

1. sink for fear of plate face reinforcing bar in the disturbing concrete process, guarantee the effective height of reinforcing bar, between the double steel bar net, should set up effective support split heads muscle; Support the split heads muscle and be not less than Φ 10, when beam reinforced steel bar>=Φ 12, spacing is not more than 1000mm * 1000mm; When beam reinforced steel bar＜Φ 12; Spacing is not more than 600mm * 600mm, and the support on the same direction is no less than 2 roads, and is not more than 150mm apart from the beam reinforced steel bar end;

2. it is firm that reinforcing bar is answered colligation each other, and when preventing disturbing concrete, to tie up button loose because of collision, vibration make, and the reinforcing bar displacement causes the dew muscle;

are split heads muscle and upper and lower layer reinforcing bar contact point employing spot welding 3., and the upper and lower layer steel mesh reinforcement in its periphery 2～3 road scopes also taked spot welding simultaneously, with stiffener net resistance to overturning.During assembling reinforcement, should stop topping by design code.Stay and establish topping, should process cushion block, the reinforcing bar pad is risen, forbid with reinforcing bar pad reinforcing bar or directly be fixed on template on iron nail, iron wire reinforcing bar with the cement mortar of identical match ratio;

4. guide rail adopts diameter 10mm two grade reinforcing steels, and guide rail reinforcing bar upper surface is concrete surface, supports with the steel bar end welding under the guide rail, and steel bar end must not exceed guide pass, and support interval is that 500～800mm and every guide rail must not be less than 3 strong points;

5. the colligation of roofing beam reinforced steel bar finishes after the acceptance(check); Measure ridge, each negative and positive angle of roofing and ditch inner edge place by the measurement engineer and get the concrete absolute altitude; And under welder's cooperation, identifying the absolute altitude of concrete surface with steel bar end, steel bar end is fixed on the good beam reinforced steel bar of colligation, must carry out the mark of concrete surface absolute altitude on the steel bar end; The sign spacing is not more than 5 meters, and the place all need be provided with at harmonizing yinyang angle, ridge end;

6. weld the reinforcing bar guide rail at place, ridge harmonizing yinyang angle earlier according to the good concrete surface absolute altitude of sign; The ridge guide rail with hang after mould installs according to absolute altitude; With to hang mould is the guide rail (backguy processings) that control line is set up big face, plate and causing by the setting of 3000mm spacing (can not greater than 3000mm) is still used the reinforcing bar of diameter 10mm under the guide rail with ridge; Adopt steel bar end spot welding to fix by 800-1000mm spacing; Check guide rail with thickness of slab after guide rail has been provided with and whether be provided with accurately, aspect thickness of slab 120mm, maximum deviation must not surpass 4mm;

7. building of concrete should begin from eaves, toward the ridge construction, and are axis of symmetry with the highest point ridge line from down, and the both sides symmetry is built concrete, is less than the concrete initial setting time (about 3 hours) its blanking time.Build in the concrete process; Roofworks belongs to key project and should arrange the full-time staff often to observe the situation of template, support, reinforcing bar etc.; When finding distortion is arranged, when moving; The processing that should in time take appropriate measures,, multiple spot backguy control concrete face absolute altitude multi-direction in strict accordance with absolute altitude guarantees the concrete pouring quality.Rely on the guide rail that has fixed to utilize 4 meters floating rule control concrete surface absolute altitudes.Vertically build direction with vibrator and vibrate, vibrate finish after, with the floating surface of floating rule.Because of the gradient is bigger, concrete is shaped difficult, is 100-120 so require concrete slump.

the above; Be merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Every technical spirit according to the utility model to any trickle modification that above embodiment did, be equal to replacement and improve, all should be included within the protection domain of the utility model technical scheme.

Claims

1. guide rail structure that is used for slope cast-in-situ concrete; Comprise the template that is laid on the slope; Be set up in the beam reinforced steel bar on the template, this beam reinforced steel bar by plate at the bottom of reinforcing bar and plate face reinforcing bar bilayer constitute, it is characterized in that: the reinforcing bar guide rail is set on beam reinforced steel bar; Guide rail and beam reinforced steel bar are through the rail support firm welding, and the guide pass absolute altitude is the room panel structure absolute altitude.

2. guide rail structure according to claim 1 is characterized in that: have additional between the double-deck muscle net of reinforcing bar and plate face reinforcing bar at the bottom of the plate and support the split heads muscle.

3. guide rail structure according to claim 2 is characterized in that: reinforcing bar is connected carrying with template through cushion block at the bottom of the plate of said beam reinforced steel bar.