Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of side wall concrete job practices of application side bench-table car is provided.Need not build steel pipe support and assembled formwork, install, dismounting speed is fast, construction stability is reliable to accurate adjustment to realize again three, and concrete surface planeness is good, and seam faulting of slab ends is little.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of side wall concrete job practices of application side bench-table car, wherein, described side wall chassis is the longitudinal spliced of a side wall trolley unit or some side wall trolley units, and described side wall trolley unit comprises that chassis moves and fixed system, steel form connect navigation system.
Described chassis moves and fixed system, comprise and be provided with the base of steel post, the removable beam frame assembly being connected on described steel post, with the running gear that is installed on the track of walking comprising on described base, described beam frame assembly middle part was longitudinally provided with beam end in both sides, the described beam end below of crossing is provided with some jackscrew for described beam frame assembly vertical displacement, described jackscrew is fixed on the steel post of described base, and described beam frame assembly bottom is provided with some supporting jack.
Described steel form connects navigation system, comprise the steel form being formed by a plurality of steel plate splicings that are fixed on template framework, be fixedly mounted on described beam frame assembly upper side to the telescopic boom beam of construction side wall one side with some, the top longeron of described template framework and the free end pin joint of described telescopic boom beam, between the waist longeron of described template framework and described beam frame assembly, be provided with some hydraulic jack, the side direction screw mandrel that is provided with some groups of longitudinal arrangements between described steel form and described beam frame assembly is very heavy.
Construction sequence comprises as follows:
(1) by described walking track laying on the ground;
(2) by the pre-coating release agent of described steel form;
(3) place counterweight, steel form lower edge is alignd with position line;
(5) repeatedly regulate described telescopic boom beam and described hydraulic jack to carry out the location of steel form;
(6) regulate described supporting jack, side wall chassis is fixed;
(7) described side direction screw mandrel is installed very heavy, steel form is fixed;
(8) some lower margin drag-lines are installed, described lower margin drag-line is connected between pre-buried earth anchor and side wall chassis, and with oblique construction side wall one side tension;
(9) some anti-floating screw mandrels are installed very heavy, the very heavy one end of described anti-floating screw mandrel is butted on to described steel form top end, the other end peaks at foundation ditch brace summer bottom;
(10) closing in net and steel plate for sealing water are arranged on to described steel form both sides;
(11) concreting, after concrete setting, form removal and next circulation construction.
Do the further improvement of technique scheme, apply two row side wall chassis for the construction of both sides side wall concrete simultaneously, between described two row side wall chassis, by some, stay tube part is connected, further comprising the steps between step (9) and step (10):
Install somely to stay tube part, by described, stay tube part is connected between described two row side wall chassis arranged side by side.
Do the further improvement of technique scheme, described beam frame assembly forms upper beam frame assembly and underbeam frame assembly by stacked system, between described upper and lower beam frame assembly, is bolted to connection.
As the further improvement of technique scheme, described telescopic boom beam is built-in with hydraulic jack, and is placed on slideable bearing.
Do the further improvement of technique scheme, described running gear comprises and is arranged on the movable pulley of described steel post below and for the drive unit of walking power is provided, described walking track and described movable pulley match.
The side wall concrete job practices of implementing a kind of application side bench-table of the present invention car, compared with prior art, has following beneficial effect:
(1) steel form of the present invention is by the telescopic moving of beam frame assembly top extension type semi girder and beam frame assembly middle part hydraulic jack, and in the time of can controlling steel form location, the adjustment of lateral attitude, realizes automatic patrix or the demoulding; The cantilevered of steel form connects design simultaneously, has effectively improved because the excessive equipment connection parts that cause of steel form deadweight are born serious problem, has improved stability and the engineering construction speed of system architecture;
(2) beam frame assembly of the present invention passed through the jackscrew of beam end below, and beam frame assembly is vertically moved, thus the adjustment of vertical position while controlling steel form location;
(3) the present invention, by the running gear on base, drives beam frame assembly to vertically move, thus the adjustment of lengthwise position while controlling steel form location;
(4) the present invention adopts both sides side wall form of construction work arranged side by side, by make left and right sides bench-table car be connected to stay tube part, realizes cross binding and the both sides side wall of offside bench-table car and constructs simultaneously, has further improved stability and the efficiency of construction of trolley structure;
(5) the present invention, by effective combination of the parts such as, lower margin drag-line very heavy to stay tube part, supporting jack, side direction screw mandrel, anti-floating screw mandrel be very heavy, realizes and bears and transmit load, effectively improves resistance to overturning and the construction quality of executing Technical Service Worklog System;
(6) the present invention adopts the unit combination mode of vertical height direction and longitudinal length direction, to be applicable to the side wall construction of multiple differing heights, different length large format;
(7) the present invention is usingd chassis as the support of steel form, in the adjustment process of the location of steel form, need not move chassis, easy and simple to handle, good stability;
(8) the present invention replaces steel pipe support jacking with track chassis, by Large Steel template, replace block-by-block assembled formwork, need not build steel pipe support and assembled formwork, greatly simplified working procedure, the installation rate and the reliability that have improved template, improved efficiency of construction, reduced workman's labour intensity simultaneously, greatly save artificial, timber and steel pipe support, reduced construction cost.
The specific embodiment
Below in conjunction with accompanying drawing, further describe the specific embodiment of the present invention.
Simultaneously referring to shown in Fig. 1 ~ 4, an a kind of embodiment of side wall concrete job practices of application side bench-table car, wherein, applied side wall chassis is the longitudinal spliced of a side wall trolley unit or some side wall trolley units, and above-mentioned side wall trolley unit comprises that chassis moves and fixed system 1, steel form connect navigation system 2.In an embodiment, side wall chassis design length is 12m, for meeting certain execution conditions, may be split into two 6m side wall chassis and uses.Below all take the side wall chassis embodiment that spliced length is 12m and be described.
Chassis moves and fixed system 1, comprises and is provided with the base 11 of steel post 14, the removable beam frame assembly 12 being connected on described steel post 14, and be installed on the running gear 13 on base 11.Concrete, above line walking system 13 comprises the walking track 132 that is arranged on the movable pulley 131 of steel post 15 belows, matches with movable pulley 131 and for the drive unit 133 of walking power is provided, by this running gear 13, can drive reposefully beam frame assembly 12 to vertically move, thereby the adjustment of lengthwise position while controlling steel form 22 location, rail mounted design simultaneously, the stability while having guaranteed longitudinal walking, and its supporting capacity is high.Above-mentioned beam frame assembly 12 longitudinal both sides, middle part were provided with beam end 15, cross beam end 15 belows and be provided with some jackscrew 4 for beam frame assembly 12 vertical displacements, jackscrew 4 is fixed on the steel post 14 of described base 11, and in an embodiment, jackscrew 4 is preferably 6.When chassis move in place after, by jackscrew 4, beam frame assembly 12 is vertically moved, the adjustment of vertical position while controlling steel form 22 location; Subsequently, also by some supporting jack 6 that are arranged on beam frame assembly 12 bottoms, beam frame assembly 12 is supported in orbit and on ground, to reduce the bearing capacity of running gear 13, increase bearing capacity and the stability of table system, realize chassis steadily fixing in original place, in an embodiment, supporting jack 6 is preferably one-sided 6, totally 12 of bilaterals.
In the embodiment shown in Figure 2, above-mentioned beam frame assembly 12 forms upper beam frame assembly 121 and underbeam frame assembly 122 by stacked system, between upper and lower beam frame assembly 121,122, is bolted to connection.Operation platform 16 has been built at upper beam assembly top, so that construction.In an embodiment, owing to considering that negative one deck is different from the height of negative two layers of side wall, steel form height design is 3.5m+1.7m, when negative two layers of side wall are built, adopts 3.5m+1.7m steel formwork trolley, comprises the chassis of upper beam frame assembly 121 and underbeam frame assembly 122; When negative one deck side wall is built, adopt 3.5m trolley formwork, do not contain the chassis of upper beam frame assembly 121.Can adjust chassis height according to side wall Construction Condition like this, meet the construction needs of differing heights, improve the compliance of chassis.In addition, operation platform 16 has been built at above-mentioned beam frame assembly 12 tops, so that construction.
Steel form connects navigation system 2, comprises the steel form 22 being formed by a plurality of steel plate splicings that are fixed on template framework 21, and some described beam frame assembly 12 upper side that are fixedly mounted on are to the telescopic boom beam 3 of construction side wall one side.In an embodiment, telescopic boom beam 3 is preferably 5.Concrete, above-mentioned telescopic boom beam 3 is built-in with hydraulic jack 31, and is placed on slideable bearing 32, can make steel form stably translational; Above-mentioned steel form 22 is provided with longitudinally and vertical strengthening ribs in the one side towards chassis, can increase the structural strength of steel form, makes side wall more straight, improves construction quality.The top longeron of template framework 21 and the free end pin joint of telescopic boom beam 3; Between the waist longeron of template framework 21 and beam frame assembly 12, be provided with some hydraulic jack 5, in an embodiment, hydraulic jack 5 is preferably 5.Like this, steel form 22 can be by the telescopic moving of extension type semi girder 3 and hydraulic jack 5, and in the time of can controlling steel form 22 location, the adjustment of lateral attitude, realizes automatic patrix or the demoulding; The cantilevered of steel form connects design simultaneously, has effectively improved because the excessive equipment connection parts that cause of steel form deadweight are born serious problem, has improved stability and the engineering construction speed of system architecture.In addition, also the side direction screw mandrel very heavy 7 by some groups of longitudinal arrangements is connected between steel form 22 and beam frame assembly 12, thereby guaranteed fixing between steel form 22 and beam frame assembly 12, in an embodiment, at least a file side direction screw mandrel 7 is respectively established in top, middle part, the bottom between steel form 22 and beam frame assembly 12, except being positioned at the same file of telescopic boom beam 3 and hydraulic jack 5, the very heavy every file of side direction screw mandrel is at least provided with 5.
According to following steps, applying above-mentioned side wall chassis constructs to side wall:
Step 1: the track 132 of walking is laid on the ground, predeterminable range according to walking track 132 with construction side wall, Yi Bian clean place, Yi Bian lay walking track, trolley running track 132 adopts 38kg/m rail track, and rail bottom rail paving is two 16mm i iron side by side.I iron is spaced apart 50cm, and i iron freezes and is connected with base plate embedded bar, prevents that slippage from appearring in concreting process.Gauge error is not more than 5mm, and railway line must be parallel with side wall sideline, after track laying, with measuring apparatus, proofreaies and correct.Side wall chassis 1 is placed on it, and the assembled place of reserved equipment.
Step 2: the pre-coating release agent of steel form 22, steel form 22 surface adhesions when reducing the demoulding.
Step 3: place counterweight, side wall chassis is moved and in place; Specifically, because steel form deadweight is larger, make side wall chassis both lateral sides be subject to force unbalance and cause the run-off the straight of side wall chassis, so need to place counterweight at the opposite side of the relative steel form of side wall chassis, make side wall chassis stressed in equilibrium state, thereby be conducive to side wall chassis, move with in place.
Step 4: regulate above-mentioned jackscrew 4, operate corresponding reversal valve handle jackscrew 4 piston rods are stretched out, the working depth by chassis jacking to design, makes steel form lower edge align with position line.
Step 5: repeatedly regulate above-mentioned telescopic boom beam 3 and hydraulic jack 5, carry out the location of steel form 22.In an embodiment, the location of steel form 22 comprises four control lines, control line 1: alignd with position line in sideline inside steel form lower edge; Control line 2,3: utilize and hanging the correction steel form both sides verticality of hanging down; Control line 4: utilize bracing wire method to proofread and correct steel form upper limb glacing flatness.Meanwhile, on steel form upper rim, set up side wall concrete protective layer thickness control lever.
Step 6: regulate above-mentioned supporting jack 6, side wall chassis is fixed, and guarantee that supporting jack 6 must push up jail completely, has not allowed loosening.
Step 7: above-mentioned side direction screw mandrel is installed very heavy 7, steel form 22 is fixing.
Step 8: some lower margin drag-lines 8 are installed, and lower margin drag-line 8 is connected between pre-buried earth anchor and side wall chassis, and with oblique construction side wall one side tension.When concreting, mainly bear and transmit the load of horizontal direction, prevent side wall chassis lateral sliding, make side wall chassis more firm.During design, need to analyze from first building the stress condition of base plate, to guarantee that lower margin drag-line can bear construction load, thereby determine its quantity.
Step 9: some anti-floating screw mandrels are installed very heavy 9, very heavy 9 one end of anti-floating screw mandrel are butted on to steel form 22 top end, the other end peaks at foundation ditch brace summer 91 bottoms, mainly bears and transmit the vertical load of steel form, steel form upwards floats when preventing concreting.In an embodiment, anti-floating screw mandrel very heavy 9 at least needs to arrange 4.
Step 10: closing in net and steel plate for sealing water are arranged on to steel form 22 both sides.
Step 11: concreting, after concrete setting, form removal and next circulation construction.
Further, apply two row side wall chassis for the construction of both sides side wall concrete simultaneously, between above-mentioned two row side wall chassis, by some, stay tube part 10 is connected, further comprising the steps between step (9) and step (10):
Install somely to stay tube part 10, by described, stay tube part 10 is connected between described two row side wall chassis arranged side by side.By make left and right sides bench-table car be connected to stay tube part 10, realize cross binding and the both sides side wall of offside bench-table car and construct simultaneously, further improved stability and the efficiency of construction of trolley structure.In an embodiment, according to side wall chassis length, be 12m, arrange 3 to stay tube part.
Adopt the side wall concrete job practices of application side bench-table car of the present invention and the Efficiency Comparison of the job practices that tradition is built steel pipe support and assembled formwork as follows:
(1) construction material-saving
Engineering example: the about 1520m of certain station side wall, about 7800m2; The about 5000m2 of discrepancy section line side wall 1080m, adds up to about 2600m, 12800m2.
Tradition construction: pressing wooden form turnover and calculate for 4 times, need the about 3200m2 of wooden form, after Practical Completion, is building waste entirely, also needs to buy the turnovers such as (leaving out) a large amount of steel pipe supports simultaneously;
The present invention construction: this engineering only needs a set of steel form side wall chassis, need not any wooden form, the turnover such as steel pipe support, after Practical Completion, through maintenance, can continue to drop into other engineering and use.
(2) efficiency of construction
Often complete each operation required time of 10 meters of bilateral side walls:
Technique of the present invention on the basis that traditional handicraft operation is simplified, by often complete 10 meters of bilateral side wall required times traditional handicraft within 617 hours, shorten to 249 hours of technique of the present invention, efficiency of construction improves 148%.
As can be seen here, implement the side wall concrete job practices of a kind of application side bench-table of the present invention car, with track chassis, replace steel pipe support jacking, by Large Steel template, replace block-by-block assembled formwork, need not build steel pipe support and assembled formwork, greatly simplified working procedure, the installation rate and the reliability that have improved template, improved efficiency of construction, reduced workman's labour intensity simultaneously, greatly save artificial, timber and steel pipe support, reduced construction cost.
Steel form of the present invention is by the telescopic moving of beam frame assembly top extension type semi girder and beam frame assembly middle part hydraulic jack, and in the time of can controlling steel form location, the adjustment of lateral attitude, realizes automatic patrix or the demoulding; Beam frame assembly passed through the jackscrew of beam end below, and beam frame assembly is vertically moved, thus the adjustment of vertical position while controlling steel form location; By the running gear on base, drive beam frame assembly to vertically move, thus the adjustment of lengthwise position while controlling steel form location; Therefore, the present invention can realize three effectively to accurate location, regulates the speed fast.
The present invention adopts both sides side wall form of construction work arranged side by side, by stay tube part is connected left and right sides bench-table car, realizes cross binding and the both sides side wall of offside bench-table car and constructs simultaneously, has further improved stability and the efficiency of construction of side wall trolley structure; Effective combination of the parts such as, lower margin drag-line very heavy by supporting jack, side direction screw mandrel, anti-floating screw mandrel be very heavy simultaneously, realizes and bears and transmit load, has effectively improved stability and the construction quality of chassis integral body.
The present invention adopts the unit combination mode of vertical height direction and longitudinal length direction, to be applicable to the side wall construction of multiple differing heights, different length large format; Its concrete surface planeness is high, and seam faulting of slab ends is little, without spillage, runs mould phenomenon.
Above disclosed is only a kind of preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.