Summary of the invention
Technical problem to be solved in the utility model is to overcome the defect of prior art and provides the viaduct vase pier falsework co-ordinative construction of a kind of simple structure, easy to use, structural safety, economical rationality.
Technical problem of the present utility model is achieved through the following technical solutions:
A kind of viaduct vase pier falsework co-ordinative construction, comprise cushion cap, build two pier studs being connected on cushion cap and build the bent cap be connected between two pier studs, described every root pier stud is all be made up of straightway pier stud and curved section pier stud, this straightway pier stud is built shaping by the straight-line segment template be arranged on cushion cap, this curved section pier stud is built shaping by the curved section template be connected in straight-line segment template, this bent cap is by building shaping across the capping beam template be connected in two curved section templates, between the straight-line segment template top of two described pier studs, lower carriage is installed, this lower carriage is provided with two curved section templates, support is installed between two described curved section die head, this upper bracket is provided with the bent cap side falsework and bent cap soffit formwork support installed for described capping beam template.
Described lower carriage comprises lower carriage crossbeam, many lower carriage pull bars, lower carriage longeron, lower carriage platform and lower carriage railing, described lower carriage crossbeam is the i iron that two levels are placed in two straight-line segment template top outer, the top outer of lower carriage crossbeam and straight-line segment template is connected to each other, many described lower carriage pull bars are connected on lower carriage crossbeam by the preformed hole tension at straight-line segment template top, described lower carriage longeron is many and lays and be fixed on the channel-section steel on lower carriage crossbeam, described lower carriage platform is connect the steel plate be arranged on lower carriage longeron, described lower carriage railing is enclose the frame type railing being arranged on lower carriage platform periphery, anti-falling screen is wrapped up outside this lower carriage railing.
Described upper bracket comprises upper bracket collet, upper bracket crossbeam, many upper bracket pull bars, upper bracket longeron, upper bracket platform and upper bracket railing, described upper bracket collet is arranged on outside curved section die head and does supporting role for upper bracket crossbeam, described upper bracket crossbeam is the i iron that two levels are placed in outside two curved section die head, many described upper bracket pull bars are connected on upper bracket crossbeam by the preformed hole tension of curved section die head, described upper bracket longeron is many and lays and be fixed on the channel-section steel on upper bracket crossbeam, described upper bracket platform is connect the steel plate be arranged on upper bracket longeron, described upper bracket railing is enclose the frame type railing being arranged on upper bracket platform periphery, anti-falling screen is wrapped up outside this upper bracket railing.
Multiple medium-height trestle is provided with between described upper bracket and lower carriage.
Described capping beam template comprises bent cap facade template, bent cap side template and bent cap soffit formwork, described bent cap facade template is facade strip, bottom support is on upper bracket, described bent cap side template is rectangle, be provided with the bent cap side falsework installed and support outside it, this bent cap side falsework is arranged on upper bracket, and described bent cap soffit formwork facade is arch, be provided with the bent cap soffit formwork support installed and support bottom it, this bent cap soffit formwork support installing is on upper bracket.
Described straight-line segment template is assembled by 2 ~ 4 pieces of straight tubular constructions of the hollow be connected to each other, and this straight-line segment template bottom is arranged on cushion cap, straight-line segment template top junction curve section template.
Described curved section template is assembled by 2 ~ 4 pieces of curved hollow tubular constructions be connected to each other, this curved section template bottom connects straight-line segment template, curved section template top connection cover beam forms, outside curved section template, be provided with the curved section falsework installed and support, this curved section falsework is arranged on lower carriage.
Described vase pier side arranges for the upper and lower terraced cage of constructing operation person walks, this terraced cage is the rectangular frame that steel material is made, anti-falling screen is wrapped up outside ladder cage, be provided with in ladder cage and spiraled to top the ladder extended by bottom, be provided with locking movable pulley bottom ladder cage, terraced cage side is just provided with dodge gate to the position of lower carriage and upper bracket.
Described bent cap be by capping beam template with bent cap cage of reinforcement and concreting shaping, these bent cap placed on top bridge deck, bent cap facade is elongated, and the bottom surface of bent cap between two pier studs is set to arcuate surface, and two outside cantilevers stretching out two pier studs respectively outward of bent cap are rectangular; Described cushion cap be by cushion cap template with cushion cap reinforcing bar and concreting shaping, the embedded bar of pier stud reserved by this cushion cap reinforcing bar; Described straightway pier stud be by straight-line segment template with straightway cage of reinforcement and concreting shaping; Described curved section pier stud be by curved section template with curved section cage of reinforcement and concreting shaping; Described cushion cap, straightway pier stud, curved section pier stud and bent cap form the vase pier of viaduct jointly.
Compared with prior art, the utility model devises a kind of falsework co-ordinative construction being applied to the construction of urban viaduct vase pier, it mainly installs lower carriage at the straight-line segment template top of building straightway pier stud, and to be arranged on lower carriage and for the curved section falsework of curved section model sheetinstallat, support is installed again at the curved section die head of building curved section pier stud, and to be arranged on upper bracket and the bent cap side falsework installed for capping beam template and bent cap soffit formwork support, by designing above-mentioned falsework co-ordinative construction and just perfect can realizing the construction of vase pier in conjunction with corresponding using method, and this falsework co-ordinative construction does not need to occupy larger construction area space when constructing, favourable Construction traffic passes through, and there is simple structure, easy to use, structural safety, economical rationality, embody standardization, the advantages such as standardized construction, therefore there is higher economic benefit and social benefit.
Detailed description of the invention
To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.
As shown in Fig. 1 ~ Fig. 5, 1. cushion cap, 11. cushion cap reinforcing bars, 2. pier stud, 21. straightway pier studs, 22. straightway cage of reinforcement, 23. curved section pier studs, 24. curved section cage of reinforcement, 3. bent cap, 31. bent cap cage of reinforcement, 4. capping beam template, 41. bent cap soffit formwork supports, 42. bent cap facade templates, 43. bent cap soffit formworks, 44. bent cap side falseworks, 45. bent cap side templates, 5. upper bracket, 51. upper bracket pull bars, 52. upper bracket platforms, 53. upper bracket railings, 54. upper bracket longerons, 55. upper bracket crossbeams, 56. upper bracket collets, 6. curved section falsework, 7. curved section template, 8. lower carriage, 81. lower carriage platforms, 82. lower carriage railings, 83. lower carriage longerons, 84. lower carriage crossbeams, 85. lower carriage pull bars, 9. straight-line segment template, 10. terraced cage.
Viaduct vase pier falsework co-ordinative construction, relate to a kind of form of construction work for building viaduct vase pier, and it mainly comprises the falsework co-ordinative construction shown in Fig. 1, Fig. 2 and these two parts of falsework co-ordinative construction using method shown in Fig. 5.
The vase pier structure of described viaduct is by cushion cap 1, builds two pier studs 2 being connected on cushion cap and build the bent cap 3 be connected between two pier studs and form.
Wherein, cushion cap 1 is reinforced concrete structure, and its underpart is pile foundation, cushion cap 1 is for connecting pile foundation and two pier studs 2, can arrange cushion cap template, colligation cushion cap reinforcing bar 11 after pile foundation completes, then shaping with concreting, cushion cap reinforcing bar 11 need reserve the embedded bar of pier stud 2.
The dimensional structure of two pier studs 2 is identical, all be made up of the straightway pier stud 21 of bottom and the curved section pier stud 23 on top, be connected with cushion cap 1 bottom this straightway pier stud 21, curved section pier stud 23 top is connected with bent cap 3, and two curved section pier studs 23 are for opposing and be bent outwardly setting, therefore the profile that two pier studs 2 design on cushion cap 1 is lightly attractive in appearance, and straightway pier stud 21 be by be arranged on straight-line segment template 9 on cushion cap 1 with straightway cage of reinforcement 22 and concreting shaping, curved section pier stud 23 be by be connected to curved section template 7 in straight-line segment template 9 with curved section cage of reinforcement 24 and concreting shaping.
Described bent cap 3 be by across the capping beam template 4 be connected in two curved section templates 7 with bent cap cage of reinforcement 31 and concreting shaping, be connected with curved section pier stud 23 top of two pier studs 2 bottom bent cap 3, bent cap 3 placed on top bridge deck, bent cap 3 facade is elongated, be set to arcuate surface in the bottom surface of bent cap 3 between two pier studs 2 to promote aesthetic property, two outside cantilevers stretching out two pier studs 2 respectively outward of bent cap 3 are rectangular.
Above-mentioned cushion cap reinforcing bar 11, straightway cage of reinforcement 22, curved section cage of reinforcement 24 and bent cap cage of reinforcement 31 are all topmost stressed members, in order to ensure the quality of products and convenient construction, in factory by according to cushion cap 1, pier stud 2 is different with the profile of bent cap 3 and correspondingly make shaping, appointed part is winched to by loop wheel machine after being transported to job site by transport vehicle again, cushion cap reinforcing bar 11, use reinforced bar sleeve to be interconnected between straightway cage of reinforcement 22 and curved section cage of reinforcement 24, bent cap cage of reinforcement 31 and curved section cage of reinforcement 24 top use steel wire lashing firm.
Above-mentioned cushion cap template, straight-line segment template 9, curved section template 7, capping beam template 4 build the concrete mould of these formation vase pier shaped members of cushion cap 1, pier stud 2 and bent cap 3 for correspondence, and design according to the exact shape of pier stud 2 and bent cap 3, be steel, be made by template material, section steel material and connector.
Above-mentioned concrete is the primary structural material of vase pier, is transported to job site by batching plant's mixing transport vehicle, and pump truck is pumped in straight-line segment template 9, in curved section template 7 and in capping beam template 4 builds, solidifies to form vase pier structure.
Described straight-line segment template 9 is the straight tubular construction of hollow, and at short transverse linear uniform section, cross section is identical with the cross sectional shape of straightway pier stud 21, and interior sectional dimension is identical with the cross section of straightway pier stud 21; The straight tubular construction of straight-line segment template 9 hollow assembles by 2 ~ 4 pieces, and be beneficial to assembling and remove, this assembly type multi-section structure, the height often saved is all determined by the overall height of straight-line segment template 9, often saves between adjacent straight-line segment template 9 and is connected firmly with bolt.
Described curved section template 7 is curved hollow tubular construction, and identical with curved section pier stud 23 profile in short transverse, cross section is identical with the cross sectional shape of curved section pier stud 23, and interior sectional dimension is identical with the cross section of curved section pier stud 23; It is assemble by 2 ~ 4 pieces that curved section template 7 bends tubular construction, and be beneficial to assembling and remove, this assembly type multi-section structure, the height often saved is all determined by the overall height of curved section template 7, often saves between adjacent curved section template 7 and is connected firmly with bolt.
Described capping beam template 4 comprises bent cap facade template 42, bent cap side template 45 and bent cap soffit formwork 43; Wherein, bent cap facade template 42 is facade strip, and in short transverse, the short transverse of sectional dimension and bent cap 3 is measure-alike, and bottom support is on the upper bracket longeron 54 of upper bracket 5; Bent cap side template 45 is rectangle, and interior sectional dimension is identical with the cross section of curved section pier stud 23, and outside is provided with the bent cap side falsework 44 installed and support, and this bent cap side falsework is arranged on the upper bracket longeron 54 of upper bracket 5 by bolt; Bent cap soffit formwork 43 facade is arch, distance between length dimension with two curved section pier stud 23 tops is identical, width is identical with bent cap 3 bottom width, be provided with the bent cap soffit formwork support 41 installed and support in the bottom of bent cap soffit formwork 43, this bent cap soffit formwork support is arranged on the upper bracket longeron 54 of upper bracket 5 by bolt.
Be provided with lower carriage 8 between two described straight-line segment template 9 tops, this lower carriage is provided with the curved section falsework 6 installed for two curved section templates 7; Described lower carriage 8 comprises lower carriage crossbeam 84, many lower carriage pull bars 85, lower carriage longeron 83, lower carriage platform 81 and lower carriage railings 82; Wherein, lower carriage crossbeam 84 is that the i iron of two levels extends along the direction of two pier studs 2 and is placed in two straight-line segment template 9 top outer, specifically be placed in the steel members of straight-line segment template 9, the inboard width of two i iron is identical with the external dimensions of straight-line segment template 9, the outside of i iron and straight-line segment template 9 uses bolt to be connected firmly, two i iron re-use many lower carriage pull bars 85 and connect, these many lower carriage pull bars are connected on lower carriage crossbeam 84 by the preformed hole tension at straight-line segment template 9 top, and are strained by lower carriage crossbeam 84 firmly; Lower carriage longeron 83 is the many channel-section steels being laid on lower carriage crossbeam 84, and these many channel-section steels and lower carriage crossbeam 84 are bolted firmly; Lower carriage platform 81 is connect the steel plate be arranged on lower carriage longeron 83, and this steel plate is connected firmly by bolt and lower carriage longeron 83, and the size of lower carriage platform 81 meets the operation instructions for use of constructing operation personnel, small-sized machine and instrument etc.; The frame type railing that lower carriage railing 82 forms for steel pipe, bolt is used to be arranged on lower carriage longeron 83 and lower carriage platform 81, and enclosing the periphery being arranged on lower carriage platform 81, wrapping up anti-falling screen outside lower carriage railing 82, is the use that personnel's construction safety and protection small article fall.
Described upper bracket 5 is arranged between two curved section template 7 tops, and it comprises upper bracket collet 56, upper bracket crossbeam 55, many upper bracket pull bars 51, upper bracket longeron 54, upper bracket platform 52 and upper bracket railings 53; Wherein, upper bracket collet 56 is arranged on curved section template 7 top outer, and this upper bracket collet 56 side is connected with bolt with curved section template 7, bottom upper bracket collet 56 end face supporting upper bracket crossbeam 55, plays the effect of fixing upper bracket crossbeam 55; Upper bracket crossbeam 55 is that the i iron of two levels extends along the direction of two pier studs 2 and is placed in two curved section template 7 top outer, specifically be placed in the steel members of curved section template 7, the inboard width of two i iron is identical with the external dimensions of curved section template 7, the outside of i iron and curved section template 7 uses bolt to be connected firmly, two i iron re-use many upper bracket pull bars 51 and connect, these many upper bracket pull bars 51 are connected on upper bracket crossbeam 55 by the preformed hole tension at curved section template 7 top, and are strained by upper bracket crossbeam 55 firmly; Upper bracket longeron 54 is the many channel-section steels being laid on upper bracket crossbeam 55, and these many channel-section steels and upper bracket crossbeam 55 are bolted firmly; Upper bracket platform 52 is connect the steel plate be arranged on upper bracket longeron 54, and this steel plate is connected firmly by bolt and upper bracket longeron 54, and the size of upper bracket platform 52 meets the operation instructions for use of constructing operation personnel, small-sized machine and instrument etc.; The frame type railing that upper bracket railing 53 forms for steel pipe, bolt is used to be arranged on upper bracket longeron 54 and upper bracket platform 52, and enclosing the periphery being arranged on upper bracket platform 52, wrapping up anti-falling screen outside upper bracket railing 53, is the use that personnel's construction safety and protection small article fall.
In the middle of lower carriage 8 and upper bracket 5 also can according to the overall height of vase pier and constructing operation convenient and increase multiple medium-height trestle, this medium-height trestle and lower carriage 8, upper bracket 5 project organization are similar.
Lower carriage 8 and upper bracket 5 is arrived for the ease of constructing operation personnel, can arrange as shown in Figure 3 with the terraced cage 10 that steel material makes in vase pier side, this terraced cage is the fixed step for upper and lower two rack platforms of constructing operation person walks, and profile is quadra, outside parcel anti-falling screen, be provided with in ladder cage 10 and spiraled to top the ladder extended by bottom, width and the height of every step ladder are advisable with convenient construction operating personnel going up or down stairway, spiraling of ladder mainly extends to opposite direction after a direction extends again, its number is the progression of terraced cage, the progression of ladder cage is depending on the height of two rack platforms, can be customized according to demand by special producer, ladder cage is an independent device, locking movable pulley is provided with bottom it, removable near or away from two rack platforms, every grade of terraced cage place, namely just dodge gate is provided with to the position of lower carriage 8 and upper bracket 5, for constructing operation personnel turnover.
Viaduct vase pier falsework co-ordinative construction has corresponding using method, and constructs according to step shown in Fig. 5:
Step one, formulation vase pier falsework co-ordinative construction constructure scheme:
1. designing and calculating falsework co-ordinative construction, according to design feature and the quality requirement of vase pier, in conjunction with constructing operation operation, analyze the stressing conditions of construction stage load and structure, design viaduct vase pier falsework co-ordinative construction, by the force and deformation data of finite element software calculated line section template, curved section template, lower carriage, upper bracket, need meet the static stress and distortion requirement of structural element, the associated components of making and rigging support co-ordinative construction, and be up to the standards;
2. reserved, the concreting of cushion cap reinforcing bar 11, the embedded bar that pier stud reserved by cushion cap reinforcing bar is treated to be connected with the straightway cage of reinforcement 22 of pier stud 2;
3. pier stud straightway cage of reinforcement 22, curved section cage of reinforcement 24 and bent cap cage of reinforcement 31 is made;
Step 2, two straightway pier stud constructions:
1. the straightway cage of reinforcement 22 of straightway pier stud 21 is lifted, and use straight screw sleeve connection with the embedded bar that pier stud reserved by cushion cap reinforcing bar 11, the installation site of straightway cage of reinforcement 22 must be up to the standards, and the quality of connection of the reinforced bar sleeve that the embedded bar that straightway cage of reinforcement 22 reserves pier stud with cushion cap reinforcing bar 11 is connected also must be up to the standards;
2. polylith straight-line segment template 9 is hung in straightway pier stud 21 place at cushion cap 1 top with loop wheel machine, and use bolt to connect polylith straight-line segment template 9 successively, accurately, form firm straight-line segment template structure, the installation quality of straight-line segment template 9 must be up to the standards in position adjustment;
3. use pump truck pumping of concrete in straight-line segment template 9, health one week, treats that concrete strength reaches more than 70% of design strength and can carry out lower step construction;
Step 3, cage 10 to straightway pier stud 21 place of ramp, locking movable pulley fixed ladder cage location carries out constructing operation with the upper descending stair cage of convenient construction operating personnel;
Step 4, installation lower carriage:
1. loop wheel machine hangs in two i iron as lower carriage crossbeam 84, bolt is used to be connected with the top outer of straight-line segment template 9 on lower carriage crossbeam, again by the preformed hole of many lower carriage pull bars 85 through straight-line segment template 9 top, and the lower carriage pull bar 85 screwed on lower carriage crossbeam 84, fixedly secure lower carriage crossbeam 84 in the top of straight-line segment template 9;
2. on lower carriage crossbeam 84, lay the many channel-section steels as lower carriage longeron 83, and use bolt to be connected with lower carriage crossbeam 84 in many channel-section steels;
3. on many channel-section steels of lower carriage longeron 83, lay the steel plate as lower carriage platform 81, and use bolt to be connected with lower carriage longeron 83 steel plate;
4. the frame type railing that forms for steel pipe of lower carriage railing 82, bolt is used to be connected on lower carriage longeron 83 and lower carriage platform 81, and enclose the periphery being arranged on lower carriage platform 81, outside parcel anti-falling screen, be the use that personnel's construction safety and protection small article fall;
5. installation curve section falsework 6, this curved section falsework is installed and is supported curved section template 7, is fixed by bolts on lower carriage longeron 83 bottom curved section falsework 6;
Step 5, two pier stud curved section constructions:
1. the curved section cage of reinforcement 24 of curved section pier stud 23 is lifted, straight screw sleeve connection is used with the straightway cage of reinforcement 22 of having constructed, the installation site of curved section cage of reinforcement 24 must be up to the standards, and curved section cage of reinforcement 24 also must be up to the standards with the quality of connection of the reinforced bar sleeve that the straightway cage of reinforcement 22 of having constructed is connected;
2. polylith curved section template 7 loop wheel machine is hung in straight-line segment template 9 top, and use bolt to connect polylith curved section template 7 successively, accurately, form firm curved section formwork structure, the installation quality of curved section template 7 must be up to the standards in position adjustment;
3. use pump truck pumping of concrete in curved section template 7, health one week, treats that concrete strength reaches more than 70% of design strength and can carry out lower step construction;
Step 6, install support:
1. loop wheel machine hangs in two i iron as upper bracket crossbeam 55, bolt is used to be connected with the top outer of curved section template 7 on upper bracket crossbeam, again by the preformed hole of many upper bracket pull bars 51 through curved section template 7 top, and the upper bracket pull bar 51 screwed on upper bracket crossbeam 55, fixedly secure upper bracket crossbeam 55 in the top of curved section template 7;
2. on upper bracket crossbeam 55, lay the many channel-section steels as upper bracket longeron 54, and use bolt to be connected with upper bracket crossbeam 55 in many channel-section steels;
3. on many channel-section steels of upper bracket longeron 54, lay the steel plate as upper bracket platform 52, and use bolt to be connected with upper bracket longeron 54 steel plate;
4. the frame type railing that forms for steel pipe of upper bracket railing 53, bolt is used to be arranged on upper bracket longeron 54 and upper bracket platform 52, and enclose the periphery being arranged on upper bracket platform 52, outside parcel anti-falling screen, be the use that personnel's construction safety and protection small article fall;
5. mounting cover side template support 44, is fixed by bolts on upper bracket longeron 54 bottom bent cap side falsework;
6. mounting cover beam bottom mother plate support 41, bent cap soffit formwork frame bottom bolt is arranged on upper bracket longeron 54;
Step 7, Coping Construction:
1. mounting cover beam bottom mother plate 43 on mounting cover side template 45, bent cap soffit formwork support 41 on bent cap side falsework 44 respectively, upper bracket longeron 54 is installed bent cap facade template 42, and bent cap side template 45, bent cap soffit formwork 43 and bent cap facade template 42 jointly form capping beam template 4 and installation quality must be up to the standards;
2. in bent cap side template 45, bent cap soffit formwork 43 and bent cap facade template 42, hang in bent cap cage of reinforcement 31 with loop wheel machine, accurately, bent cap cage of reinforcement 31 and curved section cage of reinforcement 24 top use steel wire lashing firm, and installation quality must be up to the standards in position adjustment;
3. use pump truck pumping of concrete in capping beam template 4, health one week, treats that concrete strength reaches more than 70% of design strength and can carry out lower step construction;
Step 8, according to install opposite sequence remove successively capping beam template 4, upper bracket 5, curved section template 7, lower carriage 8 and straight-line segment template 9 and concentrate place, through the maintaining Later Zhou Dynasty, one of the Five Dynasties forward to next vase pier use.
The utility model also by a concrete Application Example table and composition graphs 4 be described further.
Vase pier Application Example table
Embodiment described in the utility model is only not used in restriction scope of the present utility model for illustration of the utility model.Should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction in addition.