CN103192452B - The termination protective construction of unbounded post-tensioned prestressed concrete structure - Google Patents
The termination protective construction of unbounded post-tensioned prestressed concrete structure Download PDFInfo
- Publication number
- CN103192452B CN103192452B CN201210000393.7A CN201210000393A CN103192452B CN 103192452 B CN103192452 B CN 103192452B CN 201210000393 A CN201210000393 A CN 201210000393A CN 103192452 B CN103192452 B CN 103192452B
- Authority
- CN
- China
- Prior art keywords
- circle
- protective construction
- construction form
- face
- end protective
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Joining Of Building Structures In Genera (AREA)
- Building Environments (AREA)
Abstract
The termination protective construction of unbounded post-tensioned prestressed concrete structure comprises the stretching end of the prestressed constructions of post-tensioned unbonded prestressed concrete structure and the protective construction of stiff end, this structure is applicable to repeatedly the prestressed constructions of reusable prefabricated assembled concrete structure as prefabricated concrete tower crane basis must meet closing of the structure termination of repeatedly loading and unloading requirement and protection, while guaranteeing prestressed constructions structural safety, reduce termination structure corrosion, to increase materials'use number of times thus to reduce use cost.
Description
Technical field the present invention relates to the prestressed constructions of cycle shift reusable posttension prestressing without bondn prefabricated assembled concrete structure.
The reusable prefabricated assembled concrete structure of the current existing cycle shift of background technology is as the termination of the prestressed constructions of assembly concrete premade tower crane foundation---the structure of stretching end and stiff end, general all to adopt and the stretching end of building structure and the similar structure of stiff end, but because of the reusable needs of monolithic concrete structure, cause stretching end and stiff end structure can not resemble in architectural engineering posttension prestressing without bondn structure stretching end and stiff end carry out permanent closure, cause stretching end and some structure of stiff end must be exposed to outside xoncrete structure, thus hidden danger is formed to structure general safety, and be directly in nature wet environment to cause termination to construct corrosion to accelerate, to the installation of prestressed constructions, disassemble and reuse formation adverse effect, accelerate the damage of prestressed constructions and scrap speed and increase use cost because termination structure exposes.Therefore, design is equipped with a kind of end structure---the protection that stretching end and stiff end match and closed construction of prestressed constructions of and existing posttension soap-free emulsion polymeization assembly concrete precast construction, just becomes the prefabricated xoncrete structure of posttension soap-free emulsion polymeization and ensures structural safety and extended end head structure service life thus reduce the key technology of use cost.
Summary of the invention object of the present invention and task are to provide and a kind ofly construct with the termination of assembled unbounded post-tensioned prestressed concrete structure---stiff end and stretching end construct match, can with the protection of stiff end and stretching end tectonic association, decomposition and closed construction, this structure can make stiff end and stretching end effectively be protected, realize again stiff end and stretching end structure and outside natural wet environment isolated closed, demolition, installation are simultaneously easy.For guaranteeing structure general safety, increase constructs service life, reduction use cost provides technical conditions.
Technical scheme the present invention includes the termination protective construction constructing the posttension prestressing without bondn be jointly made up of 7 kinds of stiff end protective construction forms and 9 kinds of stretching end protective construction forms that matches with the posttension prestressing without bondn repeatedly loaded and unloaded and construct, stiff end structural form of the present invention is stiff end protective construction form No. 1 (101) or stiff end protective construction form No. 2 (102) or stiff end protective construction form No. 3 (103) or stiff end protective construction form No. 4 (104) or stiff end protective construction form No. 5 (105) or stiff end protective construction form No. 6 (106) or No. 7, stiff end protective construction form (107), stretching end structural form of the present invention is No. 1, stretching end protective construction form, or No. 2, stretching end protective construction form (201), or No. 3, stretching end protective construction form (202), or No. 4, stretching end protective construction form (203), or No. 5, stretching end protective construction form (204), or No. 6, stretching end protective construction form (205), or No. 7, stretching end protective construction form (206), or No. 8, stretching end protective construction form (207), or No. 9, stretching end protective construction form (208), (209).
No. 1, stiff end protective construction form (101): confession deformed bar (3) is passed and No. 1, the duct (11) be placed in one is located in the concrete (1) of the assembled unbounded post-tensioned prestressed concrete structure of concrete prefabricated parts (46) horizontal combination, the section in duct No. 1 (11) is polygon or circle, the longitudinal axis center in duct No. 1 (11) and the plane dead in line or parallel of assembled unbounded post-tensioned prestressed concrete structure, the inwall that the hole wall in duct No. 1 (11) manages (18) by deformed bar duct is formed, the material in deformed bar duct pipe (18) is steel or plastics or concrete (1), one group is become to arrange with the longitudinal axis center in each duct No. 1 (11) of the same plane axis being parallel of same assembled unbounded post-tensioned prestressed concrete structure in same cross section level arranged side by side, the quantity in duct No. 1 (11) is n, this n be more than or equal to 1 integer, No. 1, duct (11) is provided with No. 1, anchor slab (2) with the vertical alien invasion confluce of the concrete (1) of concrete prefabricated parts (46), the positive facade of anchor slab No. 1 (2) is polygon or circle, No. 1, anchor slab (2) is provided with No. 7, hole (15), the quantity in hole No. 7 (15) is identical with the quantity that (18) are managed in same group of deformed bar duct, the alien invasion in hole No. 7 (15) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), No. 7, hole (15) and the section in duct No. 1 (11) are polygon or the circle of congruence, and longitudinal axis center overlaps, gapless between the interior facade of anchor slab No. 1 (2) and the outer face of duct No. 1 (11) and being connected, No. 1, anchor slab (2) is provided with No. 4, hole (14) m, this m be more than or equal to 2 integer, the external screw thread that the aperture surface in hole No. 4 (14) is provided with internal thread and bolt No. 1 (7) coordinates, the interior facade of anchor slab No. 1 (2) is established or does not establish No. 1, dowel (10) and anchor slab No. 1 (2) to be connected, outer end and the anchor head (4) of deformed bar (3) are combined into one, and the external diameter of anchor head (4) is greater than the internal diameter of hole No. 7 (15), the outer rim of circle No. 1 (9) is polygon or circle, and the endoporus section of circle No. 1 (9) is polygon or circle, the inner edge section of protection sleeve No. 1 (5) is and the sealing sleeve of the nozzle of the endoporus profile graphics congruence of circle No. 1 (9) towards concrete structure centre, have gap between the interior facade of No. 1 (16) at the bottom of the outer end cylinder of protection sleeve No. 1 (5) and the outer end of deformed bar (3), the inner face of protection sleeve No. 1 (5) is connected with the outer face of circle No. 1 (9), enclose No. 1 (9) and be provided with quantity No. 2, the hole identical with No. 4, the hole be located on No. 1, anchor slab (2) (14) (12), and the horizontal longitudinal axis heart in No. 2, hole (12) and hole No. 4 (14) overlaps, the internal diameter of hole No. 2 (12) be greater than bolt No. 1 (7) external diameter and with bolt No. 1 (7) major diameter fit, between the alien invasion and the interior facade of circle No. 1 (9) of anchor slab No. 1 (2), be provided with No. 1, sealing ring (8), No. 1, sealing ring (8) upper porose No. 3 (13) passes for bolt No. 1 (7), as shown in Figure 1,2,3, 4.
The difference of No. 2, stiff end protective construction form (102) and stiff end protective construction form No. 1 (101) is: the internal diameter in the hole No. 1 (6) that No. 1, anchor slab (2) is provided be greater than bolt No. 1 (7) external diameter and with the major diameter fit of bolt No. 1 (7), bolt No. 1 (7) have externally threaded one end outwardly, gapless between the exterior annular vertical plane of the turret head of bolt No. 1 (7) and the interior facade of anchor slab No. 1 (2); Or have screw thread one end outwardly with stud, and the longitudinal axis of the vertical axis of stud and hole No. 2 (12) is overlapped inwardly without screw thread one end and be connected in stud to the alien invasion of end face and anchor slab No. 1 (2); With the outer end threaded engagement of No. 1, nut (17) and bolt No. 1 (7) or stud, tight loop No. 1 (9) and sealing ring No. 1 (8) and No. 1, protection sleeve (5) is located; As shown in Fig. 1,2,5,6,3,4.
No. 3, stiff end protective construction form (103) is with the difference of stiff end protective construction form No. 1 (101): substitute No. 1, anchor slab (2) with No. 2, anchor slab (37), the facade outer rim figure of anchor slab No. 2 (37) is for being less than polygon or the circle of anchor slab No. 1 (2) outer rim figure, the endoporus section of anchor slab No. 2 (37) and the endoporus section of duct No. 1 (11) are polygon or the circle of congruence, and the alien invasion of anchor slab No. 2 (37) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46); No. 1, sleeve (35) for section be annular pipe, the external screw thread that the aperture surface of the horizontal circular inner hole of sleeve No. 1 (35) is provided with internal thread and bolt No. 1 (7) coordinates, the longitudinal axis center of the endoporus of sleeve No. 1 (35) overlaps with the vertical axis in the hole No. 2 (12) being located at circle No. 1 (9), the export-oriented end face of sleeve No. 1 (35) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), is provided with or does not establish No. 2, dowel (36) and sleeve No. 1 (35) to be connected; Protection sleeve No. 1 (5) is located with the screw-internal thread fit tight loop No. 1 (9) of the screw thread of the inward end of bolt No. 1 (7) and sleeve No. 1 (35) and sealing ring No. 1 (8); As shown in Fig. 1,2,7,8,3,4.
No. 4, stiff end protective construction form (104) is with the difference of stiff end protective construction form No. 3 (103): the horizontal longitudinal axis heart of bolt No. 2 (38) overlaps with the vertical axis in the hole No. 2 (12) being located at circle No. 1 (9), the threaded external end head of bolt No. 2 (38) outwardly, turret head is arranged in the concrete (1) of concrete prefabricated parts (46) inwardly, coordinate tight loop No. 1 (9) and sealing ring No. 1 (8) with the external screw thread of the internal thread of nut No. 1 (17) and bolt No. 2 (38) and protection sleeve No. 1 (5) is located, as shown in Fig. 1,2,9,10,7,8.
No. 5, stiff end protective construction form (105): forming the extroversion end vertical plane in deformed bar duct pipe (18) in duct No. 1 (11) with the vertical interior facade gapless of circle No. 4 (29) is connected, the section outer rim of circle No. 4 (29) is polygon or circle, the endoporus section of circle No. 4 (29) is with the polygon of No. 1 (11) the section congruence in duct or circle and longitudinal axis center overlaps, the interior of pipe No. 2 (32) is connected to end face with the export-oriented face enclosing No. 4 (29), the horizontal longitudinal axis heart of pipe No. 2 (32) overlaps with the vertical axis of circle No. 4 (29), the section of pipe No. 2 (32) is the ring of polygon or circle, the internal diameter of pipe No. 2 (32) is greater than the internal diameter of duct No. 1 (11), No. 4, pipe (47) is provided with outside the extroversion end of pipe No. 2 (32), in No. 4, pipe (47) to the export-oriented end face congruence of end face and pipe No. 2 (32) and the also blind-mate that overlaps be connected, the material of No. 2, pipe (32) and pipe No. 4 (47) is steel or identical with the concrete (1) of concrete prefabricated parts (46), the extroversion end vertical plane of pipe No. 4 (47) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), in No. 4, pipe (47), the closed rubber stopper (33) of bag is truncated pyramid or truncated cone, closes the inwall blind-mate of rubber stopper (33) and pipe No. 4 (47), close the extroversion end vertical plane of rubber stopper (33) equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), closing the interior of rubber stopper (33) has gap between face and the outer end of deformed bar (3), the section of anchor slab No. 3 (52) is the cylinder of polygon or circle, the external diameter of anchor slab No. 3 (52) is less than the internal diameter of pipe No. 2 (32) and is greater than the internal diameter of duct No. 1 (11), No. 3, anchor slab (52) is provided with No. 5, hole (48) n, this n be more than or equal to 1 integer, the external diameter that the internal diameter in hole No. 5 (48) is greater than deformed bar (3) passes for deformed bar (3), export-oriented end and the anchor head (4) of deformed bar (3) are combined into one, anchor head (4) interior to gapless between end face and the export-oriented face of anchor slab No. 3 (52), pressure-bearing pipe (41) is provided with between facade and the export-oriented face of circle No. 4 (29) at the interior of anchor slab No. 3 (52), each position section of pressure-bearing pipe (41) is the annular of congruence, the external diameter of pressure-bearing pipe (41) is less than the internal diameter of pipe No. 2 (32), the internal diameter of pressure-bearing pipe (41) is more than or equal to the internal diameter of duct No. 1 (11), the number of packages of pressure-bearing pipe (41) be 0 or be greater than 0 integer, as shown in Fig. 1,2,11,12.
No. 6, stiff end protective construction form (106) is with the difference of stiff end protective construction form No. 5 (105): enclose the endoporus section and pipe No. 2 (32) of No. 7 (44) section outer rim congruence and longitudinal axis center overlap, enclose the section outer rim figure congruence of No. 7 (44) and circle No. 6 (43) and overlap, the export-oriented face in export-oriented face and pipe No. 2 (32) of circle No. 7 (44) flushes and is connected and is connected to gapless between face with circle No. 6 (43) interior, the hole section of circle No. 6 (43) is circular, the aperture of circle No. 6 (43) is greater than the internal diameter of pipe No. 2 (32), the aperture surface enclosing No. 6 (43) holes is provided with internal thread and coordinates with the external screw thread in the outer diameter face being located at sealing plug (45), sealing plug (45) for section be circular cylinder, the export-oriented face of sealing plug (45) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46) with the circle export-oriented face of No. 6 (43), sealing plug (45) interior to face with enclose blind-mate between No. 7 (44) and the export-oriented end face of pipe No. 2 (32), as shown in Fig. 1,2,13,14,11,12.
No. 7, stiff end protective construction form (107): the section of circle No. 9 (49) is L shape, No. 9, hole (60) internal diameter of circle No. 9 (49) is identical with No. 1, duct (11) internal diameter, the vertical axis of the longitudinal axis center and duct No. 1 (11) in the hole No. 9 (60) of circle No. 9 (49) overlaps, circle the interior of No. 9 (49) is managed the extroversion end blind-mate of (18) and is connected with deformed bar duct to face, the circle export-oriented face of No. 9 (49) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), the export-oriented face of circle No. 9 (49) is provided with the toroidal cavity (59) that section is rectangle, the export-oriented face of toroidal cavity (59) is equal with the export-oriented face of circle No. 9 (49), the internal diameter of the internal diameter and hole No. 9 (60) of toroidal cavity (59) is identical, and the longitudinal axis center of the longitudinal axis center of toroidal cavity (59) and hole No. 9 (60) overlaps, the external diameter of toroidal cavity (59) is greater than the external diameter of anchor slab No. 4 (53), anchor slab No. 4 (53) is cylinder, No. 4, anchor slab (53) is provided with No. 5, hole (48) n of level, this n be more than or equal to 1 integer, the outer diameter face of anchor slab No. 4 (53) is provided with external screw thread, the export-oriented face of the interior bottom land to face and toroidal cavity (59) of anchor slab No. 4 (53) coordinates gapless, and the internal diameter of the circular section of hole No. 5 (48) is greater than the external diameter of deformed bar (3) and is less than the external diameter of anchor head (4), the aperture surface of circle No. 10 (51) is provided with internal thread and coordinates with the external screw thread in the outer diameter face of anchor slab No. 4 (53), between the interior concrete (1) to face and concrete prefabricated parts (46) and the vertical alien invasion enclosing No. 9 (49) of circle No. 10 (51), be provided with No. 3, sealing ring (50), No. 3, protection sleeve (54) for section be circular or polygon and nozzle towards the sealing sleeve of concrete structure centre, the internal diameter of protection sleeve No. 3 (54) is greater than the external diameter of anchor slab No. 4 (53) and is less than the external diameter of circle No. 10 (51), and the interior of protection sleeve No. 3 (54) is connected to the export-oriented face of end face with circle No. 10 (51), the interior of No. 3 (55) at the bottom of the cylinder of protection sleeve No. 3 (54) has gap between face and the extroversion end of deformed bar (3), as shown in Fig. 1,2,15,16.
No. 1, stretching end protective construction form (201) is with the difference of stiff end protective construction form No. 1 (101): replace anchor head (4) with anchor ring No. 2 (31) and intermediate plate (20), No. 2, anchor ring (31) for section outer rim be circular cylinder, the external diameter of anchor ring No. 2 (31) is greater than the internal diameter in duct No. 1 (11) and is less than the internal orifice dimension of circle No. 1 (9), it is large that No. 2, anchor ring (31) is provided with external diameter, No. 8, the frustum of a cone body opening (39) that internal diameter is little, the interior external diameter being greater than deformed bar (3) to small-bore in hole No. 8 (39) passes for deformed bar (3), intermediate plate (20) is provided with between the inner hole wall and the outer diameter face of deformed bar (3) of hole No. 8 (39), as shown in Fig. 1,2,17,18,3,4.
No. 2, stretching end protective construction form (202) is identical with the difference of stiff end protective construction form No. 1 (101) with No. 1, stretching end protective construction form (201) with the difference of stiff end protective construction form No. 2 (102); As shown in Fig. 1,2,19,20,5,6,17,18,3,4.
No. 3, stretching end protective construction form (203) is identical with the difference of stiff end protective construction form No. 1 (101) with No. 1, stretching end protective construction form (201) with the difference of stiff end protective construction form No. 3 (103); As shown in Fig. 1,2,21,22,7,8,17,18,3,4.
No. 4, stretching end protective construction form (204) is identical with the difference of stiff end protective construction form No. 1 (101) with No. 1, stretching end protective construction form (201) with the difference of stiff end protective construction form No. 4 (104); As shown in Fig. 1,2,23,24,9,10,17,18,3,4.
No. 5, stretching end protective construction form (205): the export-oriented end face that forms deformed bar duct pipe (18) in duct No. 1 (11) with enclose No. 8 (26) interior to facade blind-mate and be connected, congruent and the longitudinal axis center of the section of the hole section and duct No. 1 (11) of circle No. 8 (26) overlaps, the section of pipe No. 1 (27) is annular, the internal diameter of pipe No. 1 (27) be greater than duct No. 1 (11) internal diameter and with the major diameter fit of protection sleeve No. 2 (24), the cylinder end No. 2 (34) is circular slab, the outer rim profile graphics at the cylinder end No. 2 (34) and the outer rim profile graphics congruence of protection sleeve No. 2 (24), and the outer face gapless of the interior facade of No. 2 (34) at the bottom of cylinder and protection sleeve No. 2 (24) is also connected the cylinder making No. 2, protection sleeve (24) become outer end closed, the facade outer rim of circle No. 3 (28) is polygon or circle, the external diameter of the circular hole internal diameter and protection sleeve No. 2 (24) of circle No. 3 (28) matches to merge and is connected, and the distance that the length that the inward end of protection sleeve No. 2 (24) protrudes from circle No. 3 (28) interior facades is less than circle No. 3 (28) interior facades and encloses between No. 8 (26) alien invasion, No. 3, circle (28) is provided with No. 2, n hole (12), this n be more than or equal to 2 integer, the section in hole No. 2 (12) be internal diameter be greater than bolt No. 2 (38) external diameters circle and with bolt No. 2 (38) major diameter fit, the longitudinal axis center of the longitudinal axis center and bolt No. 2 (38) in each hole No. 2 (12) overlaps, the turret head of bolt No. 2 (38) inwardly, screw thread one end is had to be located in the concrete (1) of concrete prefabricated parts (46) outwardly, and make the screw thread one end that has of bolt No. 2 (38) protrude from the vertical alien invasion of concrete (1), No. 2, sealing ring (23) is provided with between the interior facade and the alien invasion of concrete (1) of circle No. 3 (28), coordinate tight loop No. 3 (28) and sealing ring No. 2 (23) with the external screw thread of the internal thread of nut No. 1 (17) and bolt No. 2 (38) and protection sleeve No. 2 (24) is located, anchor ring No. 1 (30) interior to facade and circle No. 8 (26) export-oriented facade between blind-mate, be placed in intermediate plate (20) hole No. 6 (21) that imperial palace is little outside the aperture be located on No. 1, anchor ring (30) hole wall and through the deformed bar (3) of hole No. 6 (21) outer diameter face, gap is had between the interior facade of No. 2 (34) at the bottom of the external end head of deformed bar (3) and cylinder, as shown in Fig. 1,2,25,26.
No. 6, stretching end protective construction form (206) is identical with the difference of stiff end protective construction form No. 3 (103) with No. 4, stiff end protective construction form (104) with the difference of stretching end protective construction form No. 5 (205); As shown in Fig. 1,2,27,28,9,10,7,8.
No. 7, stretching end protective construction form (207) is identical with the difference of stiff end protective construction form No. 1 (101) with No. 2, stiff end protective construction form (102) with the difference of stretching end protective construction form No. 6 (206), and substitute No. 1, sleeve (35) to enclose No. 2 (22), the internal diameter of circle No. 2 (22) be greater than protection sleeve No. 2 (24) external diameters and with the major diameter fit of protection sleeve No. 2 (24), the circle outer diameter face of No. 2 (22) flushes with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), enclose the interior export-oriented face blind-mate to face and pipe No. 1 (27) of No. 2 (22) and be connected, enclose No. 2 (22) and be provided with No. 1, hole (6), the internal diameter in hole No. 1 (6) and longitudinal axis center identical with No. 2, the hole be located on No. 3, circle (28) (12) overlaps, bolt No. 1 (7) have screw thread one end outwardly through No. 2, circle (22), sealing ring No. 2 (23) and No. 2, hole (12), coordinate with the extroversion end external screw thread of the internal thread of nut No. 1 (17) and bolt No. 1 (7), as shown in Fig. 1,2,29,30,5,6,3,4.
No. 8, stretching end protective construction form (208) is identical with the difference of stiff end protective construction form No. 2 (102) with No. 1, stiff end protective construction form (101) with the difference of stretching end protective construction form No. 7 (207); And substitute No. 2, circle (22) to enclose No. 11 (42), enclose No. 11 (42) to be with the difference of circle No. 2 (22): enclose No. 11 (42) and be provided with No. 10, the hole (40) overlapped with No. 2, hole (12) vertical axis being located at circle No. 3 (28), the external screw thread that the aperture surface of hole No. 10 (40) is provided with internal thread and bolt No. 1 (7) coordinates; As shown in Fig. 1,2,31,32,3,4,5,6.
No. 9, stretching end protective construction form (209): the section of circle No. 9 (49) is L shape, the internal diameter in the hole No. 9 (60) of circle No. 9 (49) is identical with No. 1, duct (11) internal diameter, the vertical axis of the longitudinal axis center and duct No. 1 (11) in the hole No. 9 (60) of circle No. 9 (49) overlaps, circle the interior of No. 9 (49) is managed the extroversion end blind-mate of (18) and is connected with deformed bar duct to face, the circle export-oriented face of No. 9 (49) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), the export-oriented face of circle No. 9 (49) is provided with the toroidal cavity (59) that section is rectangle, the export-oriented face of toroidal cavity (59) is equal with the export-oriented face of circle No. 9 (49), the internal diameter of the internal diameter and hole No. 9 (60) of toroidal cavity (59) is identical, and the longitudinal axis center of the longitudinal axis center of toroidal cavity (59) and hole No. 9 (60) overlaps, the external diameter of toroidal cavity (59) is greater than the external diameter of anchor ring No. 3 (56), anchor ring No. 3 (56) is cylinder, the outer diameter face of anchor ring No. 3 (56) is provided with external screw thread, frustum of a cone body opening No. 6 (21) n that No. 3, anchor ring (56) is provided with the outer imperial palace of diameter little are individual, this n be more than or equal to 1 integer, one end internal diameter that No. 6, hole (21) section is less is greater than the external diameter of deformed bar (3) and cooperatively interacts, intermediate plate (20) is provided with between the hole wall and the outer diameter face of deformed bar (3) of hole No. 6 (21), the interior of anchor ring No. 3 (56) coordinates gapless to face with the export-oriented face of the bottom land of toroidal cavity (59), the external diameter of the internal diameter and anchor ring No. 3 (56) of circle No. 10 (51) is identical, the aperture surface of circle No. 10 (51) is provided with internal thread and coordinates with the external screw thread in the outer diameter face of anchor ring No. 3 (56), No. 4, protection sleeve (57) for section be circular or polygon and nozzle towards the sealing sleeve of concrete structure centre, the internal diameter of protection sleeve No. 4 (57) is greater than the external diameter of anchor ring No. 3 (56) and is less than the external diameter of circle No. 10 (51), the interior of protection sleeve No. 4 (57) is connected to end face with the export-oriented face enclosing No. 10 (51), the interior of No. 4 (58) at the bottom of the cylinder of protection sleeve No. 4 (57) has gap between face and the extroversion end of deformed bar (3), No. 3, sealing ring (50) is provided with between the interior concrete (1) to face and concrete prefabricated parts (46) and the vertical alien invasion enclosing No. 9 (49) of circle No. 10 (51), as shown in Fig. 1,2,33,34.
Beneficial effect 1, achieve the prefabricated concrete structure of posttension prestressing without bondn core structure---the stretching end of prestressed constructions and closing and being hedged off from the outer world of stiff end, eliminate the hidden danger of structural safety, the safety for structure provide technology ensure.
2, for prestressed constructions provides the technical conditions reducing corrosion, for reusable handling provide convenient.
3, extend the life-span of prestressed constructions, what add prestressed constructions reuses number of times, thus reduces the operating cost of total.
Accompanying drawing illustrates that the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
The general layout of the termination protective construction of accompanying drawing 1---unbounded post-tensioned prestressed concrete structure
Total profile of the termination protective construction of accompanying drawing 2---unbounded post-tensioned prestressed concrete structure
Accompanying drawing 3---the transverse cross-sectional view of stiff end protective construction form No. 1 (101)
Accompanying drawing 4---the longitudinal sectional drawing of stiff end protective construction form No. 1 (101)
Accompanying drawing 5---the transverse cross-sectional view of stiff end protective construction form No. 2 (102)
Accompanying drawing 6---the longitudinal sectional drawing of stiff end protective construction form No. 2 (102)
Accompanying drawing 7---the transverse cross-sectional view of stiff end protective construction form No. 3 (103)
Accompanying drawing 8---the longitudinal sectional drawing of stiff end protective construction form No. 3 (103)
Accompanying drawing 9---the transverse cross-sectional view of stiff end protective construction form No. 4 (104)
Accompanying drawing 10---the longitudinal sectional drawing of stiff end protective construction form No. 4 (104)
Accompanying drawing 11---the transverse cross-sectional view of stiff end protective construction form No. 5 (105)
Accompanying drawing 12---the longitudinal sectional drawing of stiff end protective construction form No. 5 (105)
Accompanying drawing 13---the transverse cross-sectional view of stiff end protective construction form No. 6 (106)
Accompanying drawing 14---the longitudinal sectional drawing of stiff end protective construction form No. 6 (106)
Accompanying drawing 15---the transverse cross-sectional view of stiff end protective construction form No. 7 (107)
Accompanying drawing 16---the longitudinal sectional drawing of stiff end protective construction form No. 7 (107)
Accompanying drawing 17---the transverse cross-sectional view of stretching end protective construction form No. 1 (201)
Accompanying drawing 18---the longitudinal sectional drawing of stretching end protective construction form No. 1 (201)
Accompanying drawing 19---the transverse cross-sectional view of stretching end protective construction form No. 2 (202)
Accompanying drawing 20---the longitudinal sectional drawing of stretching end protective construction form No. 2 (202)
Accompanying drawing 21---the transverse cross-sectional view of stretching end protective construction form No. 3 (203)
Accompanying drawing 22---the longitudinal sectional drawing of stretching end protective construction form No. 3 (203)
Accompanying drawing 23---the transverse cross-sectional view of stretching end protective construction form No. 4 (204)
Accompanying drawing 24---the longitudinal sectional drawing of stretching end protective construction form No. 4 (204)
Accompanying drawing 25---the transverse cross-sectional view of stretching end protective construction form No. 5 (205)
Accompanying drawing 26---the longitudinal sectional drawing of stretching end protective construction form No. 5 (205)
Accompanying drawing 27---the transverse cross-sectional view of stretching end protective construction form No. 6 (206)
Accompanying drawing 28---the longitudinal sectional drawing of stretching end protective construction form No. 6 (206)
Accompanying drawing 29---the transverse cross-sectional view of stretching end protective construction form No. 7 (207)
Accompanying drawing 30---the longitudinal sectional drawing of stretching end protective construction form No. 7 (207)
Accompanying drawing 31---the transverse cross-sectional view of stretching end protective construction form No. 8 (208)
Accompanying drawing 32---the longitudinal sectional drawing of stretching end protective construction form No. 8 (208)
Accompanying drawing 33---the transverse cross-sectional view of stretching end protective construction form No. 9 (209)
Accompanying drawing 34---the longitudinal sectional drawing of stretching end protective construction form No. 9 (209)
The position that protective construction of the present invention described by detailed description of the invention Fig. 1,2 is arranged, Fig. 3,4,5,6,7,8,9,10,11,12,13,14,15,16 describes 7 kinds of different structural forms of stiff end protective construction in detail; Figure 17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34 describes 9 kinds of different structural forms of stretching end protective construction in detail;
Installation procedure of the present invention:
After each concrete prefabricated parts 46 installation in position of whole posttension prestressing without bondn assembled concrete structure, deformed bar 3 is penetrated duct No. 1 11 without one end of anchor head 4 from stiff end, deformed bar 3 is passed from stretching end, dress anchor ring No. 1 30 or anchor ring No. 2 31, by regulation stress value, stretch-draw is carried out to deformed bar 3 with stretching machine, position with intermediate plate 20 pairs of deformed bars 3 simultaneously; Then carry out:
The installation of stiff end protective construction:
Stiff end protective construction form No. 1 101: have screw thread one end inwardly with each bolt No. 17, through the hole No. 2 12 of circle No. 19, again through behind No. 3 13, the hole of sealing ring No. 18, each bolt No. 17 is made to align each hole No. 4 14 of anchor slab No. 12, make the screw-internal thread fit in each hole No. 4 14 of the screw thread of each bolt No. 17 and anchor slab No. 12, rotate each bolt No. 17, make gapless between the interior facade of the alien invasion of the interior facade of circle No. 19 and sealing ring No. 18, sealing ring No. 18 and the alien invasion of anchor slab No. 12.
Stiff end protective construction form No. 2 102: after No. 3 13, each hole of sealing ring No. 18 is aligned each bolt No. 17, make the interior facade of sealing ring No. 18 near the alien invasion of anchor slab No. 12, align the extroversion end of bolt No. 17 with No. 2, each hole 12 levels of enclosing No. 19 after, circle No. 19 levels are inwardly pushed away the alien invasion making facade in circle No. 19 near sealing ring No. 18, coordinate with the external screw thread of each nut No. 1 17 and bolt No. 17, screwing each nut No. 1 17 makes between the interior facade of circle No. 19 and the alien invasion of sealing ring No. 18 and gapless between the interior facade of sealing ring No. 18 and the alien invasion of anchor slab No. 12.
Stiff end protective construction form No. 3 103: each bolt No. 17 had screw thread one end inwardly through behind No. 2 12, each hole of circle No. 19, the each hole No. 3 13 of the inward end of each bolt No. 17 through sealing ring No. 18, the endoporus of screw thread one end and each sleeve No. 1 35 that has of each bolt No. 17 is aligned, make the screw-internal thread fit of the external screw thread of each bolt No. 17 and sleeve No. 1 35, rotate each bolt No. 17, make gapless between the interior facade of the alien invasion of the interior facade of circle No. 19 and sealing ring No. 18 and sealing ring No. 18 and the alien invasion of concrete 1.
Stiff end protective construction form No. 4 104: with stiff end protective construction form No. 2 102, substitutes bolts No. 17 with bolt No. 2 38 and coordinates with nut No. 1 17.
Stiff end protective construction form No. 5 105: push hard in the path of closed rubber stopper 33 is faced, make closed rubber stopper 33 and pipe No. 4 47 coordinate tight gapless.
Stiff end protective construction form No. 6 106, with the external screw thread of sealing plug 45 and the circle screw-internal thread fit of No. 6 43, rotational fastener sealing plug 45, makes gapless between the interior facade of sealing plug 45 and circle No. 7 44 and the alien invasion of pipe No. 2 32.
Stiff end protective construction form No. 7 107: endoporus and anchor slab No. 4 53 outer diameter face of sealing ring No. 3 50 are coordinated and make in sealing ring No. 3 50 to face and gapless between the concrete 1 of concrete prefabricated parts 46 or the vertical alien invasion of toroidal cavity 59; protection sleeve No. 3 54 levels are aligned anchor slab No. 4 53; and the external screw thread of the internal thread of circle No. 10 51 and anchor slab No. 4 53 is coordinated, precession circle No. 10 51 make circle No. 10 51 interior between face and the export-oriented face of sealing ring No. 3 50 and in sealing ring No. 3 50 to airtight gapless between face and the export-oriented face of concrete 1 or toroidal cavity 59.
The installation of stretching end protective construction:
The installation procedure that stretching end protective construction form No. 1 201 and stiff end protective construction form are No. 1 101 is identical.
The installation procedure that stretching end protective construction form No. 2 202 and stiff end protective construction form are No. 2 102 is identical.
The installation procedure that stretching end protective construction form No. 3 203 and stiff end protective construction form are No. 3 103 is identical.
The installation procedure that stretching end protective construction form No. 4 204 and stiff end protective construction form are No. 4 104 is identical.
The installation procedure that stretching end protective construction form No. 5 205 and stiff end protective construction form are No. 5 105 is identical; The aperture surface of the outer diameter face of the inward end of protection sleeve No. 2 24 and pipe No. 1 27 must be coordinated simultaneously.
The installation procedure that stretching end protective construction form No. 6 206 and stiff end protective construction form are No. 3 103 is identical; The aperture surface of the outer diameter face of the inward end of protection sleeve No. 2 24 and pipe No. 1 27 must be coordinated simultaneously.
The installation procedure that stretching end protective construction form No. 7 207 and stiff end protective construction form are No. 2 102 is identical; The aperture surface of the outer diameter face of the inward end of protection sleeve No. 2 24 and pipe No. 1 27 must be coordinated simultaneously.
The installation procedure that stretching end protective construction form No. 8 208 and stiff end protective construction form are No. 1 101 is identical; The aperture surface of the outer diameter face of the inward end of protection sleeve No. 2 24 and pipe No. 1 27 must be coordinated simultaneously.
Stretching end protective construction form No. 9 209: endoporus and anchor ring No. 3 56 outer diameter face of sealing ring No. 3 50 are coordinated and make in sealing ring No. 3 50 to face and gapless between the concrete 1 of concrete prefabricated parts 46 or the vertical alien invasion of toroidal cavity 59; protection sleeve No. 4 57 levels are aligned anchor ring No. 3 56 and the external screw thread of the internal thread of circle No. 10 51 and anchor ring No. 3 56 is coordinated, to gapless between the vertical alien invasion of face and concrete 1 or toroidal cavity 59 between the interior export-oriented face to face and sealing ring No. 3 50 that precession circle No. 10 51 makes circle No. 10 51 and in sealing ring No. 3 50.
Program of disassembling of the present invention is the inverse operation with above-mentioned installation procedure.
Claims (1)
1. the termination protective construction of unbounded post-tensioned prestressed concrete structure, comprises the termination protective construction constructing the posttension prestressing without bondn be jointly made up of stiff end protective construction form and stretching end protective construction form that matches with the posttension prestressing without bondn repeatedly loaded and unloaded and construct; Stiff end structural form is stiff end protective construction form No. 1 (101) or stiff end protective construction form No. 2 (102) or stiff end protective construction form No. 3 (103) or stiff end protective construction form No. 4 (104) or stiff end protective construction form No. 5 (105) or stiff end protective construction form No. 6 (106) or No. 7, stiff end protective construction form (107); Stretching end structural form is stretching end protective construction form No. 1 (201) or stretching end protective construction form No. 2 (202) or stretching end protective construction form No. 3 (203) or stretching end protective construction form No. 4 (204) or stretching end protective construction form No. 5 (205) or stretching end protective construction form No. 6 (206) or stretching end protective construction form No. 7 (207) or stretching end protective construction form No. 8 (208) or No. 9, stretching end protective construction form (209), it is characterized in that:
No. 1, stiff end protective construction form (101): confession deformed bar (3) is passed and No. 1, the duct (11) be placed in one is located in the concrete (1) of the assembled unbounded post-tensioned prestressed concrete structure of concrete prefabricated parts (46) horizontal combination, the section in duct No. 1 (11) is polygon or circle, the longitudinal axis center in duct No. 1 (11) and the plane dead in line or parallel of assembled unbounded post-tensioned prestressed concrete structure, the inwall that the hole wall in duct No. 1 (11) manages (18) by deformed bar duct is formed, the material in deformed bar duct pipe (18) is steel or plastics or concrete (1), one group is become to arrange with the longitudinal axis center in each duct No. 1 (11) of the same plane axis being parallel of same assembled unbounded post-tensioned prestressed concrete structure in same cross section level arranged side by side, the quantity in duct No. 1 (11) is n, this n be more than or equal to 1 integer, No. 1, duct (11) is provided with No. 1, anchor slab (2) with the vertical alien invasion confluce of the concrete (1) of concrete prefabricated parts (46), the positive facade of anchor slab No. 1 (2) is polygon or circle, No. 1, anchor slab (2) is provided with No. 7, hole (15), the quantity in hole No. 7 (15) is identical with the quantity that (18) are managed in same group of deformed bar duct, the alien invasion in hole No. 7 (15) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), No. 7, hole (15) and the section in duct No. 1 (11) are polygon or the circle of congruence, and longitudinal axis center overlaps, gapless between the interior facade of anchor slab No. 1 (2) and the outer face of duct No. 1 (11) and being connected, No. 1, anchor slab (2) is provided with No. 4, hole (14) m, this m be more than or equal to 2 integer, the external screw thread that the aperture surface in hole No. 4 (14) is provided with internal thread and bolt No. 1 (7) coordinates, the interior facade of anchor slab No. 1 (2) is established or does not establish No. 1, dowel (10) and anchor slab No. 1 (2) to be connected, outer end and the anchor head (4) of deformed bar (3) are combined into one, and the external diameter of anchor head (4) is greater than the internal diameter of hole No. 7 (15), the outer rim of circle No. 1 (9) is polygon or circle, and the endoporus section of circle No. 1 (9) is polygon or circle, the inner edge section of protection sleeve No. 1 (5) is and the sealing sleeve of the nozzle of the endoporus profile graphics congruence of circle No. 1 (9) towards concrete structure centre, have gap between the interior facade of No. 1 (16) at the bottom of the outer end cylinder of protection sleeve No. 1 (5) and the outer end of deformed bar (3), the inner face of protection sleeve No. 1 (5) is connected with the outer face of circle No. 1 (9), enclose No. 1 (9) and be provided with quantity No. 2, the hole identical with No. 4, the hole be located on No. 1, anchor slab (2) (14) (12), and the horizontal longitudinal axis heart in No. 2, hole (12) and hole No. 4 (14) overlaps, the internal diameter of hole No. 2 (12) be greater than bolt No. 1 (7) external diameter and with bolt No. 1 (7) major diameter fit, between the alien invasion and the interior facade of circle No. 1 (9) of anchor slab No. 1 (2), be provided with No. 1, sealing ring (8), No. 1, sealing ring (8) upper porose No. 3 (13) passes for bolt No. 1 (7),
The difference of No. 2, stiff end protective construction form (102) and stiff end protective construction form No. 1 (101) is: the internal diameter in the hole No. 1 (6) that No. 1, anchor slab (2) is provided be greater than bolt No. 1 (7) external diameter and with the major diameter fit of bolt No. 1 (7), bolt No. 1 (7) have externally threaded one end outwardly, gapless between the exterior annular vertical plane of the turret head of bolt No. 1 (7) and the interior facade of anchor slab No. 1 (2); Or have screw thread one end outwardly with stud, and the longitudinal axis of the vertical axis of stud and hole No. 2 (12) is overlapped inwardly without screw thread one end and be connected in stud to the alien invasion of end face and anchor slab No. 1 (2); With the outer end threaded engagement of No. 1, nut (17) and bolt No. 1 (7) or stud, tight loop No. 1 (9) and sealing ring No. 1 (8) and No. 1, protection sleeve (5) is located;
No. 3, stiff end protective construction form (103) is with the difference of stiff end protective construction form No. 1 (101): substitute No. 1, anchor slab (2) with No. 2, anchor slab (37), the facade outer rim figure of anchor slab No. 2 (37) is for being less than polygon or the circle of anchor slab No. 1 (2) outer rim figure, the endoporus section of anchor slab No. 2 (37) and the endoporus section of duct No. 1 (11) are polygon or the circle of congruence, and the alien invasion of anchor slab No. 2 (37) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46); No. 1, sleeve (35) for section be annular pipe, the external screw thread that the aperture surface of the horizontal circular inner hole of sleeve No. 1 (35) is provided with internal thread and bolt No. 1 (7) coordinates, the longitudinal axis center of the endoporus of sleeve No. 1 (35) overlaps with the vertical axis in the hole No. 2 (12) being located at circle No. 1 (9), the export-oriented end face of sleeve No. 1 (35) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), is provided with or does not establish No. 2, dowel (36) and sleeve No. 1 (35) to be connected; Protection sleeve No. 1 (5) is located with the screw-internal thread fit tight loop No. 1 (9) of the screw thread of the inward end of bolt No. 1 (7) and sleeve No. 1 (35) and sealing ring No. 1 (8);
No. 4, stiff end protective construction form (104) is with the difference of stiff end protective construction form No. 3 (103): the horizontal longitudinal axis heart of bolt No. 2 (38) overlaps with the vertical axis in the hole No. 2 (12) being located at circle No. 1 (9), the threaded external end head of bolt No. 2 (38) outwardly, turret head is arranged in the concrete (1) of concrete prefabricated parts (46) inwardly, coordinate tight loop No. 1 (9) and sealing ring No. 1 (8) with the external screw thread of the internal thread of nut No. 1 (17) and bolt No. 2 (38) and protection sleeve No. 1 (5) is located,
No. 5, stiff end protective construction form (105): forming the extroversion end vertical plane in deformed bar duct pipe (18) in duct No. 1 (11) with the vertical interior facade gapless of circle No. 4 (29) is connected, the section outer rim of circle No. 4 (29) is polygon or circle, the endoporus section of circle No. 4 (29) is with the polygon of No. 1 (11) the section congruence in duct or circle and longitudinal axis center overlaps, the interior of pipe No. 2 (32) is connected to end face with the export-oriented face enclosing No. 4 (29), the horizontal longitudinal axis heart of pipe No. 2 (32) overlaps with the vertical axis of circle No. 4 (29), the section of pipe No. 2 (32) is the ring of polygon or circle, the internal diameter of pipe No. 2 (32) is greater than the internal diameter of duct No. 1 (11), No. 4, pipe (47) is provided with outside the extroversion end of pipe No. 2 (32), in No. 4, pipe (47) to the export-oriented end face congruence of end face and pipe No. 2 (32) and the also blind-mate that overlaps be connected, the material of No. 2, pipe (32) and pipe No. 4 (47) is steel or identical with the concrete (1) of concrete prefabricated parts (46), the extroversion end vertical plane of pipe No. 4 (47) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), in No. 4, pipe (47), the closed rubber stopper (33) of bag is truncated pyramid or truncated cone, closes the inwall blind-mate of rubber stopper (33) and pipe No. 4 (47), close the extroversion end vertical plane of rubber stopper (33) equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), closing the interior of rubber stopper (33) has gap between face and the outer end of deformed bar (3), the section of anchor slab No. 3 (52) is the cylinder of polygon or circle, the external diameter of anchor slab No. 3 (52) is less than the internal diameter of pipe No. 2 (32) and is greater than the internal diameter of duct No. 1 (11), No. 3, anchor slab (52) is provided with No. 5, hole (48) n, this n be more than or equal to 1 integer, the external diameter that the internal diameter in hole No. 5 (48) is greater than deformed bar (3) passes for deformed bar (3), export-oriented end and the anchor head (4) of deformed bar (3) are combined into one, anchor head (4) interior to gapless between end face and the export-oriented face of anchor slab No. 3 (52), pressure-bearing pipe (41) is provided with between facade and the export-oriented face of circle No. 4 (29) at the interior of anchor slab No. 3 (52), each position section of pressure-bearing pipe (41) is the annular of congruence, the external diameter of pressure-bearing pipe (41) is less than the internal diameter of pipe No. 2 (32), the internal diameter of pressure-bearing pipe (41) is more than or equal to the internal diameter of duct No. 1 (11), the number of packages of pressure-bearing pipe (41) be 0 or be greater than 0 integer,
No. 6, stiff end protective construction form (106) is with the difference of stiff end protective construction form No. 5 (105): enclose the endoporus section and pipe No. 2 (32) of No. 7 (44) section outer rim congruence and longitudinal axis center overlap, enclose the section outer rim figure congruence of No. 7 (44) and circle No. 6 (43) and overlap, the export-oriented face in export-oriented face and pipe No. 2 (32) of circle No. 7 (44) flushes and is connected and is connected to gapless between face with circle No. 6 (43) interior, the hole section of circle No. 6 (43) is circular, the aperture of circle No. 6 (43) is greater than the internal diameter of pipe No. 2 (32), the aperture surface enclosing No. 6 (43) holes is provided with internal thread and coordinates with the external screw thread in the outer diameter face being located at sealing plug (45), sealing plug (45) for section be circular cylinder, the export-oriented face of sealing plug (45) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46) with the circle export-oriented face of No. 6 (43), sealing plug (45) interior to face with enclose blind-mate between No. 7 (44) and the export-oriented end face of pipe No. 2 (32),
No. 7, stiff end protective construction form (107): the section of circle No. 9 (49) is L shape, No. 9, hole (60) internal diameter of circle No. 9 (49) is identical with No. 1, duct (11) internal diameter, the vertical axis of the longitudinal axis center and duct No. 1 (11) in the hole No. 9 (60) of circle No. 9 (49) overlaps, circle the interior of No. 9 (49) is managed the extroversion end blind-mate of (18) and is connected with deformed bar duct to face, the circle export-oriented face of No. 9 (49) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), the export-oriented face of circle No. 9 (49) is provided with the toroidal cavity (59) that section is rectangle, the export-oriented face of toroidal cavity (59) is equal with the export-oriented face of circle No. 9 (49), the internal diameter of the internal diameter and hole No. 9 (60) of toroidal cavity (59) is identical, and the longitudinal axis center of the longitudinal axis center of toroidal cavity (59) and hole No. 9 (60) overlaps, the external diameter of toroidal cavity (59) is greater than the external diameter of anchor slab No. 4 (53), anchor slab No. 4 (53) is cylinder, No. 4, anchor slab (53) is provided with No. 5, hole (48) n of level, this n be more than or equal to 1 integer, the outer diameter face of anchor slab No. 4 (53) is provided with external screw thread, the export-oriented face of the interior bottom land to face and toroidal cavity (59) of anchor slab No. 4 (53) coordinates gapless, and the internal diameter of the circular section of hole No. 5 (48) is greater than the external diameter of deformed bar (3) and is less than the external diameter of anchor head (4), the aperture surface of circle No. 10 (51) is provided with internal thread and coordinates with the external screw thread in the outer diameter face of anchor slab No. 4 (53), between the interior concrete (1) to face and concrete prefabricated parts (46) and the vertical alien invasion enclosing No. 9 (49) of circle No. 10 (51), be provided with No. 3, sealing ring (50), No. 3, protection sleeve (54) for section be circular or polygon and nozzle towards the sealing sleeve of concrete structure centre, the internal diameter of protection sleeve No. 3 (54) is greater than the external diameter of anchor slab No. 4 (53) and is less than the external diameter of circle No. 10 (51), and the interior of protection sleeve No. 3 (54) is connected to the export-oriented face of end face with circle No. 10 (51), the interior of No. 3 (55) at the bottom of the cylinder of protection sleeve No. 3 (54) has gap between face and the extroversion end of deformed bar (3),
No. 1, stretching end protective construction form (201) is with the difference of stiff end protective construction form No. 1 (101): replace anchor head (4) with anchor ring No. 2 (31) and intermediate plate (20), No. 2, anchor ring (31) for section outer rim be circular cylinder, the external diameter of anchor ring No. 2 (31) is greater than the internal diameter in duct No. 1 (11) and is less than the internal orifice dimension of circle No. 1 (9), it is large that No. 2, anchor ring (31) is provided with external diameter, No. 8, the frustum of a cone body opening (39) that internal diameter is little, the interior external diameter being greater than deformed bar (3) to small-bore in hole No. 8 (39) passes for deformed bar (3), intermediate plate (20) is provided with between the inner hole wall and the outer diameter face of deformed bar (3) of hole No. 8 (39),
No. 2, stretching end protective construction form (202) is identical with the difference of stiff end protective construction form No. 1 (101) with No. 1, stretching end protective construction form (201) with the difference of stiff end protective construction form No. 2 (102);
No. 3, stretching end protective construction form (203) is identical with the difference of stiff end protective construction form No. 1 (101) with No. 1, stretching end protective construction form (201) with the difference of stiff end protective construction form No. 3 (103);
No. 4, stretching end protective construction form (204) is identical with the difference of stiff end protective construction form No. 1 (101) with No. 1, stretching end protective construction form (201) with the difference of stiff end protective construction form No. 4 (104);
No. 5, stretching end protective construction form (205): the export-oriented end face that forms deformed bar duct pipe (18) in duct No. 1 (11) with enclose No. 8 (26) interior to facade blind-mate and be connected, congruent and the longitudinal axis center of the section of the hole section and duct No. 1 (11) of circle No. 8 (26) overlaps, the section of pipe No. 1 (27) is annular, the internal diameter of pipe No. 1 (27) be greater than duct No. 1 (11) internal diameter and with the major diameter fit of protection sleeve No. 2 (24), the cylinder end No. 2 (34) is circular slab, the outer rim profile graphics at the cylinder end No. 2 (34) and the outer rim profile graphics congruence of protection sleeve No. 2 (24), and the outer face gapless of the interior facade of No. 2 (34) at the bottom of cylinder and protection sleeve No. 2 (24) is also connected the cylinder making No. 2, protection sleeve (24) become outer end closed, the facade outer rim of circle No. 3 (28) is polygon or circle, the external diameter of the circular hole internal diameter and protection sleeve No. 2 (24) of circle No. 3 (28) matches to merge and is connected, and the distance that the length that the inward end of protection sleeve No. 2 (24) protrudes from circle No. 3 (28) interior facades is less than circle No. 3 (28) interior facades and encloses between No. 8 (26) alien invasion, No. 3, circle (28) is provided with No. 2, n hole (12), this n be more than or equal to 2 integer, the section in hole No. 2 (12) be internal diameter be greater than bolt No. 2 (38) external diameters circle and with bolt No. 2 (38) major diameter fit, the longitudinal axis center of the longitudinal axis center and bolt No. 2 (38) in each hole No. 2 (12) overlaps, the turret head of bolt No. 2 (38) inwardly, screw thread one end is had to be located in the concrete (1) of concrete prefabricated parts (46) outwardly, and make the screw thread one end that has of bolt No. 2 (38) protrude from the vertical alien invasion of concrete (1), No. 2, sealing ring (23) is provided with between the interior facade and the alien invasion of concrete (1) of circle No. 3 (28), coordinate tight loop No. 3 (28) and sealing ring No. 2 (23) with the external screw thread of the internal thread of nut No. 1 (17) and bolt No. 2 (38) and protection sleeve No. 2 (24) is located, anchor ring No. 1 (30) interior to facade and circle No. 8 (26) export-oriented facade between blind-mate, be placed in intermediate plate (20) hole No. 6 (21) that imperial palace is little outside the aperture be located on No. 1, anchor ring (30) hole wall and through the deformed bar (3) of hole No. 6 (21) outer diameter face, gap is had between the interior facade of No. 2 (34) at the bottom of the external end head of deformed bar (3) and cylinder,
No. 6, stretching end protective construction form (206) is identical with the difference of stiff end protective construction form No. 3 (103) with No. 4, stiff end protective construction form (104) with the difference of stretching end protective construction form No. 5 (205);
No. 7, stretching end protective construction form (207) is identical with the difference of stiff end protective construction form No. 1 (101) with No. 2, stiff end protective construction form (102) with the difference of stretching end protective construction form No. 6 (206), and substitute No. 1, sleeve (35) to enclose No. 2 (22), the internal diameter of circle No. 2 (22) be greater than protection sleeve No. 2 (24) external diameters and with the major diameter fit of protection sleeve No. 2 (24), the circle outer diameter face of No. 2 (22) flushes with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), enclose the interior export-oriented face blind-mate to face and pipe No. 1 (27) of No. 2 (22) and be connected, enclose No. 2 (22) and be provided with No. 1, hole (6), the internal diameter in hole No. 1 (6) and longitudinal axis center identical with No. 2, the hole be located on No. 3, circle (28) (12) overlaps, bolt No. 1 (7) have screw thread one end outwardly through No. 2, circle (22), sealing ring No. 2 (23) and No. 2, hole (12), coordinate with the extroversion end external screw thread of the internal thread of nut No. 1 (17) and bolt No. 1 (7),
No. 8, stretching end protective construction form (208) is identical with the difference of stiff end protective construction form No. 2 (102) with No. 1, stiff end protective construction form (101) with the difference of stretching end protective construction form No. 7 (207); And substitute No. 2, circle (22) to enclose No. 11 (42), enclose No. 11 (42) to be with the difference of circle No. 2 (22): enclose No. 11 (42) and be provided with No. 10, the hole (40) overlapped with No. 2, hole (12) vertical axis being located at circle No. 3 (28), the external screw thread that the aperture surface of hole No. 10 (40) is provided with internal thread and bolt No. 1 (7) coordinates;
No. 9, stretching end protective construction form (209): the section of circle No. 9 (49) is L shape, the internal diameter in the hole No. 9 (60) of circle No. 9 (49) is identical with No. 1, duct (11) internal diameter, the vertical axis of the longitudinal axis center and duct No. 1 (11) in the hole No. 9 (60) of circle No. 9 (49) overlaps, circle the interior of No. 9 (49) is managed the extroversion end blind-mate of (18) and is connected with deformed bar duct to face, the circle export-oriented face of No. 9 (49) is equal with the vertical alien invasion of the concrete (1) of concrete prefabricated parts (46), the export-oriented face of circle No. 9 (49) is provided with the toroidal cavity (59) that section is rectangle, the export-oriented face of toroidal cavity (59) is equal with the export-oriented face of circle No. 9 (49), the internal diameter of the internal diameter and hole No. 9 (60) of toroidal cavity (59) is identical, and the longitudinal axis center of the longitudinal axis center of toroidal cavity (59) and hole No. 9 (60) overlaps, the external diameter of toroidal cavity (59) is greater than the external diameter of anchor ring No. 3 (56), anchor ring No. 3 (56) is cylinder, the outer diameter face of anchor ring No. 3 (56) is provided with external screw thread, frustum of a cone body opening No. 6 (21) n that No. 3, anchor ring (56) is provided with the outer imperial palace of diameter little are individual, this n be more than or equal to 1 integer, one end internal diameter that No. 6, hole (21) section is less is greater than the external diameter of deformed bar (3) and cooperatively interacts, intermediate plate (20) is provided with between the hole wall and the outer diameter face of deformed bar (3) of hole No. 6 (21), the interior of anchor ring No. 3 (56) coordinates gapless to face with the export-oriented face of the bottom land of toroidal cavity (59), the external diameter of the internal diameter and anchor ring No. 3 (56) of circle No. 10 (51) is identical, the aperture surface of circle No. 10 (51) is provided with internal thread and coordinates with the external screw thread in the outer diameter face of anchor ring No. 3 (56), No. 4, protection sleeve (57) for section be circular or polygon and nozzle towards the sealing sleeve of concrete structure centre, the external diameter of the large sub-anchor ring No. 3 (56) of internal diameter of protection sleeve No. 4 (57) and be less than the external diameter of circle No. 10 (51), the interior of protection sleeve No. 4 (57) is connected to end face with the export-oriented face enclosing No. 10 (51), the interior of No. 4 (58) at the bottom of the cylinder of protection sleeve No. 4 (57) has gap between face and the extroversion end of deformed bar (3), No. 3, sealing ring (50) is provided with between the interior concrete (1) to face and concrete prefabricated parts (46) and the vertical alien invasion enclosing No. 9 (49) of circle No. 10 (51),
The installation procedure of the termination protective construction of unbounded post-tensioned prestressed concrete structure:
After each concrete prefabricated parts (46) installation in position of whole posttension prestressing without bondn assembled concrete structure, deformed bar (3) is penetrated No. 1, duct (11) without one end of anchor head (4) from stiff end, deformed bar (3) is passed from stretching end, dress anchor ring No. 1 (30) or No. 2, anchor ring (31), by regulation stress value, stretch-draw is carried out to deformed bar (3) with stretching machine, with intermediate plate (20), deformed bar (3) is positioned simultaneously; Then carry out:
The installation of stiff end protective construction:
No. 1, stiff end protective construction form (101): have screw thread one end inwardly with each bolt No. 1 (7), through No. 2, the hole (12) of circle No. 1 (9), again through behind No. 3, the hole (13) of sealing ring No. 1 (8), No. 1, each bolt (7) is made to align No. 4, each hole (14) of anchor slab No. 1 (2), make the screw-internal thread fit in the screw thread of each bolt No. 1 (7) and each hole No. 4 (14) of anchor slab No. 1 (2), rotate No. 1, each bolt (7), make the interior facade of circle No. 1 (9) and the alien invasion of sealing ring No. 1 (8), gapless between the interior facade of sealing ring No. 1 (8) and the alien invasion of anchor slab No. 1 (2),
No. 2, stiff end protective construction form (102): after No. 3, each hole (13) of sealing ring No. 1 (8) is aligned No. 1, each bolt (7), make the alien invasion of interior facade near anchor slab No. 1 (2) of sealing ring No. 1 (8), after aligning the extroversion end of bolt No. 1 (7) with No. 2, each hole (12) level of enclosing No. 1 (9), circle No. 1 (9) level is inwardly pushed away the alien invasion of interior facade near sealing ring No. 1 (8) making circle No. 1 (9), coordinate with the external screw thread of No. 1, each nut (17) and bolt No. 1 (7), screw No. 1, each nut (17) to make between the interior facade of circle No. 1 (9) and the alien invasion of sealing ring No. 1 (8) and gapless between the alien invasion of the interior facade of sealing ring No. 1 (8) and anchor slab No. 1 (2),
No. 3, stiff end protective construction form (103): by each bolt No. 1 (7) have screw thread one end inwardly through circle No. 1 (9) No. 2, each hole (12) after, No. 3, each hole (13) of the inward end of each bolt No. 1 (7) through sealing ring No. 1 (8), the endoporus of screw thread one end and each sleeve No. 1 (35) that has of each bolt No. 1 (7) is aligned, make the external screw thread of each bolt No. 1 (7) and the screw-internal thread fit of sleeve No. 1 (35), rotate No. 1, each bolt (7), make gapless between the interior facade of the interior facade of circle No. 1 (9) and the alien invasion of sealing ring No. 1 (8) and sealing ring No. 1 (8) and the alien invasion of concrete (1),
No. 4, stiff end protective construction form (104): with No. 2, stiff end protective construction form (102), substitutes No. 1, bolt (7) with No. 2, bolt (38) and coordinates with nut No. 1 (17);
No. 5, stiff end protective construction form (105): push hard in the path closing rubber stopper (33) is faced, make closed rubber stopper (33) and pipe No. 4 (47) coordinate tight gapless;
No. 6, stiff end protective construction form (106), with the screw-internal thread fit of the external screw thread of sealing plug (45) with circle No. 6 (43), rotational fastener sealing plug (45), makes gapless between the interior facade of sealing plug (45) and circle No. 7 (44) and the alien invasion of pipe No. 2 (32);
No. 7, stiff end protective construction form (107): the endoporus of sealing ring No. 3 (50) and anchor slab No. 4 (53) outer diameter face are coordinated and makes the interior to face and gapless between the concrete (1) of concrete prefabricated parts (46) or the vertical alien invasion of toroidal cavity (59) of sealing ring No. 3 (50), protection sleeve No. 3 (54) levels are aligned No. 4, anchor slab (53), and the external screw thread of the internal thread of circle No. 10 (51) and anchor slab No. 4 (53) is coordinated, it is interior between face and the export-oriented face of sealing ring No. 3 (50) and sealing ring No. 3 (50) interior to airtight gapless between face and the export-oriented face of concrete (1) or toroidal cavity (59) that No. 10, precession circle (51) makes circle No. 10 (51),
The installation of stretching end protective construction:
No. 1, stretching end protective construction form (201) is identical with the installation procedure of stiff end protective construction form No. 1 (101);
No. 2, stretching end protective construction form (202) is identical with the installation procedure of stiff end protective construction form No. 2 (102);
No. 3, stretching end protective construction form (203) is identical with the installation procedure of stiff end protective construction form No. 3 (103);
No. 4, stretching end protective construction form (204) is identical with the installation procedure of stiff end protective construction form No. 4 (104);
No. 5, stretching end protective construction form (205) is identical with the installation procedure of stiff end protective construction form No. 5 (105); The aperture surface of the outer diameter face of the inward end of protection sleeve No. 2 (24) and pipe No. 1 (27) must be coordinated simultaneously;
No. 6, stretching end protective construction form (206) is identical with the installation procedure of stiff end protective construction form No. 3 (103); The aperture surface of the outer diameter face of the inward end of protection sleeve No. 2 (24) and pipe No. 1 (27) must be coordinated simultaneously;
No. 7, stretching end protective construction form (207) is identical with the installation procedure of stiff end protective construction form No. 2 (102); The aperture surface of the outer diameter face of the inward end of protection sleeve No. 2 (24) and pipe No. 1 (27) must be coordinated simultaneously;
No. 8, stretching end protective construction form (208) is identical with the installation procedure of stiff end protective construction form No. 1 (101); The aperture surface of the outer diameter face of the inward end of protection sleeve No. 2 (24) and pipe No. 1 (27) must be coordinated simultaneously;
No. 9, stretching end protective construction form (209): the endoporus of sealing ring No. 3 (50) and anchor ring No. 3 (56) outer diameter face are coordinated and makes the interior to face and gapless between the concrete (1) of concrete prefabricated parts (46) or the vertical alien invasion of toroidal cavity (59) of sealing ring No. 3 (50), protection sleeve No. 4 (57) levels are aligned anchor ring No. 3 (56) and the external screw thread of the internal thread of circle No. 10 (51) and anchor ring No. 3 (56) is coordinated, gapless between the interior export-oriented face to face and sealing ring No. 3 (50) that No. 10, precession circle (51) makes circle No. 10 (51) and between the interior vertical alien invasion to face and concrete (1) or toroidal cavity (59) of sealing ring No. 3 (50).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210000393.7A CN103192452B (en) | 2012-01-04 | 2012-01-04 | The termination protective construction of unbounded post-tensioned prestressed concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210000393.7A CN103192452B (en) | 2012-01-04 | 2012-01-04 | The termination protective construction of unbounded post-tensioned prestressed concrete structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103192452A CN103192452A (en) | 2013-07-10 |
| CN103192452B true CN103192452B (en) | 2015-09-02 |
Family
ID=48715357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210000393.7A Expired - Fee Related CN103192452B (en) | 2012-01-04 | 2012-01-04 | The termination protective construction of unbounded post-tensioned prestressed concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103192452B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122153A (en) * | 1994-01-19 | 1996-05-08 | Vsl国际股份公司 | Post-tensioning anchor head assembly |
| US5950319A (en) * | 1997-04-29 | 1999-09-14 | Harris; David Neal | Reference marking on construction materials |
| CN2381458Y (en) * | 1999-03-26 | 2000-06-07 | 北京市城建设计研究院 | Mould for post-tension railway sleeper |
| CN202380644U (en) * | 2012-01-04 | 2012-08-15 | 赵正义 | End head protective structure of post-tensioning unbonded pre-stressing concrete structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3749825B2 (en) * | 2000-09-06 | 2006-03-01 | 独立行政法人科学技術振興機構 | Brick masonry structure, brick masonry construction method and brick |
-
2012
- 2012-01-04 CN CN201210000393.7A patent/CN103192452B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122153A (en) * | 1994-01-19 | 1996-05-08 | Vsl国际股份公司 | Post-tensioning anchor head assembly |
| US5950319A (en) * | 1997-04-29 | 1999-09-14 | Harris; David Neal | Reference marking on construction materials |
| CN2381458Y (en) * | 1999-03-26 | 2000-06-07 | 北京市城建设计研究院 | Mould for post-tension railway sleeper |
| CN202380644U (en) * | 2012-01-04 | 2012-08-15 | 赵正义 | End head protective structure of post-tensioning unbonded pre-stressing concrete structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103192452A (en) | 2013-07-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104264705B (en) | The assembling vertical connection construction on fixed tower machine and concrete basis | |
| CN204238248U (en) | A kind of pin-connected panel Prefabricated Concrete well | |
| CN105201532A (en) | Ring excavation construction method for underground large-span spherical-cap-shaped dome under weak surrounding rock | |
| CN110042844A (en) | A kind of construction method of cast-in-place major diameter foundation pit support pipe pile | |
| CN202380644U (en) | End head protective structure of post-tensioning unbonded pre-stressing concrete structure | |
| CN103192452B (en) | The termination protective construction of unbounded post-tensioned prestressed concrete structure | |
| CN101358485B (en) | Structural system for reducing pre-stress before prestressed reinforcement tensioning unload by post-tensioning method | |
| CN208039628U (en) | Cast-in-place bean column node precast beam reinforced bar connects half grout sleeve component | |
| CN101654958B (en) | Post-tensioning no-cohesive prestressed reinforcement pre-tensioning structure | |
| CN106320687A (en) | Detachable wall connecting component for scaffold | |
| CN207048185U (en) | A kind of Flat shape anchor tie-plate | |
| CN201339324Y (en) | Structural system for reducing prestressed force prior to releasing tension of post-tensioning prestressed reinforcement | |
| CN205444176U (en) | Sedimentation pipe stake is prevented in explosion slip casting | |
| CN201730108U (en) | Tensioning and stressing reinforcement stress structure | |
| CN208323750U (en) | A kind of pile for prestressed pipe wadding weft variation pours funnel | |
| CN205712772U (en) | A kind of grout sleeve and prefabricated component | |
| CN206667281U (en) | A kind of prestressed high-strength bolt assemblies being easily changed | |
| CN104234072B (en) | Fixed tower machine and basic transition connecting construction | |
| CN211114435U (en) | A half grout connecting sleeve of automatic rectifying for prefabricated post wall | |
| CN204080854U (en) | The assembling vertical connection construction on fixed tower machine and concrete basis | |
| CN201730343U (en) | Structure for reducing reinforcement stress before tension release | |
| CN106120817A (en) | A kind of domatic building concrete layer landslide-proofing construction technology | |
| CN101781933B (en) | Structure and method for reducing steel bar stress in advance before tension withdrawal | |
| CN201473962U (en) | Combination type base of tower pole type mechanical equipment | |
| CN206308705U (en) | A kind of concrete assembled basis |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20170104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |