Construction structure and construction method of lower cover beam stop block in limited space

Abstract

The invention provides a construction structure and a construction method of a cover beam stop dog in a limited space, the construction structure comprises a cover beam and an end cross beam installed on the cover beam through a support, a gap is formed between the cover beam and the end cross beam, and the construction structure comprises a stop dog template arranged at the top of the cover beam and located on the front side of the end cross beam; the inner side formwork supporting system is arranged in the gap between the cover beam and the end cross beam and used for supporting the inner side formwork; and the horizontal supports are horizontally and sequentially arranged between the tops of the outer side formwork and the inner side formwork. By means of the outer side formwork supporting system arranged on the outer side of the cover beam, the inner side formwork supporting system arranged in the gap between the cover beam and the end cross beam and the abutting relation between the inner side formwork and the end cross beam, effective supporting on the check block formwork can be formed in a narrow space, and meanwhile after check block construction is completed, the check block formwork can be effectively supported. And the template and the supporting structure can be recycled and reused by being pulled outwards.

Description

Technical Field

[0001] The invention relates to the field of bridge construction, and in particular to a construction structure of a cap beam stopper block in a confined space and a construction method thereof. Background Art

[0002] With the vigorous development of infrastructure construction in my country, arch bridge construction technology has made great progress. At present, more than 100 arch bridges with a single span of more than 100 meters have been built in China. In the arch bridge structure, blocks are usually set on the main cap beam. This design can not only enhance the lateral constraint of the cap beam on the end beam, but also provide support for the approach bridge box beam.

[0003] In the actual construction process, the cap beam is generally cast in stages. First, the lower end of the cap beam is cast, then the end cross beam is installed on the cap beam, and finally the cap beam upper block is cast. However, there are many difficulties in the construction of the block: the existence of the end cross beam limits the layout of the formwork system, making the working space extremely limited and greatly increasing the difficulty of operation; at the same time, the formwork support system is difficult to recycle in this case, resulting in waste of resources and increased costs. Therefore, a construction structure and construction method of the cap beam block under confined space are proposed to solve the above problems. Summary of the invention

[0004] The main purpose of the present invention is to provide a construction structure and a construction method of a cap beam block under a confined space, so as to solve the problem that the existence of the end cross beam restricts the layout of the formwork system, making the working space extremely limited and the operation difficulty greatly increased; at the same time, the formwork support system is difficult to recycle in this case, resulting in waste of resources and increased costs.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a construction structure of a cap beam block under a confined space and a construction method thereof, comprising a cap beam and an end cross beam installed on the cap beam through a support, a gap is formed between the cap beam and the end cross beam, and the construction structure comprises: The block template is arranged on the top of the cap beam and located in front of the end cross beam, and includes an outer template located at the edge of the cap beam, an inner template located in front of the end cross beam, and an end template installed at both ends of the outer template and the inner template, and the inner template is against the end cross beam; An outer formwork support system is arranged at the front side of the cap beam and is used to support the outer formwork; An inner formwork support system is arranged in the gap between the cap beam and the end cross beam to support the inner formwork; There are multiple horizontal supports, which are horizontally arranged in sequence between the top of the outer formwork and the top of the inner formwork.

[0006] In the preferred embodiment, the inner formwork support system includes a horizontal support component arranged between the cap beam and the end cross beam, and a plurality of interference components horizontally arranged at the top of the rear side of the cap beam. The front side of the horizontal support component interferes with the bottom of the inner formwork, and the rear side interferes with the interference component.

[0007] In a preferred embodiment, the horizontal support member includes a front abutment beam and a rear abutment beam, and a plurality of connecting members arranged horizontally and avoiding the end cross beam support are provided between the front abutment beam and the rear abutment beam.

[0008] In the preferred embodiment, the front abutment beam is provided with a detachable connection portion at the support of the end cross beam; The detachable connecting part includes two retractable connecting rods, and a receiving groove is provided at the end of the connecting rod connected to the front contact beam. Pull rings are symmetrically provided on the ends of the connecting rod corresponding to the receiving groove, and a tension spring is provided between the two pull rings. The opposite ends of the two connecting rods are respectively provided with mating connecting steps, and latch assemblies are provided in the two connecting steps.

[0009] In the preferred embodiment, the latch assembly includes corresponding sockets arranged on two connecting steps, a latch is inserted in the socket, two symmetrical limit blocks are arranged on the top inner wall of the socket located on the upper connecting step, the outside of the latch is provided with a limit groove that slides with the limit blocks, the top of the latch is provided with a top cover with a diameter larger than the top, the outside of the latch is provided with a pop-up spring, the pop-up spring is located between the upper connecting step and the top cover, and a self-unlocking locking assembly is provided at the bottom of the socket located on the lower connecting step.

[0010] In the preferred embodiment, an inverted L-shaped locking groove is provided on the outer wall surface of the bottom of the latch; The self-unlocking locking assembly includes a locking shell, an insertion slot with an open top is provided in the locking shell, a telescopic slot connected to the insertion slot is provided on the side of the insertion slot, the end of the telescopic slot close to the rear interference beam is open, a rotating bearing is provided at the bottom of the insertion slot, a plug-in cylinder for inserting a latch pin is rotatably provided in the rotating bearing, a locking block matched with the inverted L-shaped locking slot is provided on the inner wall surface of the top of the plug-in cylinder, a rotating gear ring is mounted on the outside of the plug-in cylinder, the outer ring of the rotating gear ring extends into the telescopic slot, an adjusting rack meshing with the rotating gear ring is telescopically inserted in the telescopic slot, relative sliding grooves are provided on the upper and lower sides of the telescopic slot, sliding blocks slidably matched with the sliding grooves are provided on the upper and lower sides of the insertion end of the adjusting rack, a reset spring that interferes with the insertion end of the adjusting rack is also provided in the sliding slot, and a conflict block is also provided at the other end of the adjusting rack.

[0011] In the preferred embodiment, the connecting member includes two limit rods symmetrically arranged on opposite sides of the front and rear contact beams, a steel wire rope is connected between the two limit rods, a contact rod is sleeved on the outside of the steel wire rope, and the two limit rods are respectively inserted into the contact rods.

[0012] In the preferred embodiment, the abutment component includes a first embedded part preset at the top of the rear side of the cap beam, and a vertical support arranged outside the first embedded part and abutting against the rear abutment beam; The outer formwork support system includes a plurality of support units horizontally arranged on the front side of the cap beam, and a diagonal brace connected to the outer formwork is arranged on the top of the support unit; The support unit includes two second embedded parts arranged in an upper and lower manner and arranged on the front side of the cap beam, a horizontal beam is arranged on the outer side of the second embedded part located on the upper side, and a diagonal bracing beam connected to the horizontal beam is arranged on the outer side of the second embedded part located on the lower side; The outer formwork support system also includes an installation walkway arranged on the top of the support unit.

[0013] In a preferred embodiment, the inner template support system further comprises an abutment adjustment component disposed between the inner template and the end cross beam, and the inner template abuts against the end cross beam through the abutment adjustment component; The abutment adjustment component includes a top beam and a plurality of abutment units arranged at the bottom of the top beam, the abutment unit includes an L-shaped support seat arranged at the bottom of the top beam, a positive and negative threaded rod is rotatably arranged between the bottom plate of the L-shaped support seat and the top beam, a moving groove is arranged on the side wall of the L-shaped support seat, the top end of the positive and negative threaded rod passes through the top of the top beam, and two opposite threads thereon are respectively provided with symmetrical adjustment components, the adjustment component includes a moving hinge seat threadedly sleeved on the outside of the positive and negative threaded rod, an adjustment arm is hingedly arranged on the moving hinge seat, a moving block slidably matched with the moving groove is arranged on the back, and the other ends of the adjustment arms of the two adjustment components are hingedly provided with the same abutment plate; The abutment adjustment component also includes a driving mechanism for synchronously adjusting all abutment units, the driving mechanism includes two linkage sprockets arranged on the outlet end of the positive and negative threaded rods of each abutment unit, the positive and negative threaded rods are connected with two positive and negative threaded rods adjacent to the left and right through two different linkage sprockets through a chain, a mounting seat is arranged at one end of the top beam, a driving device is installed on the mounting seat, a transmission sprocket is arranged at the output end of the driving device, and the transmission sprocket is connected with the linkage sprockets of the adjacent positive and negative threaded rods through a chain; The horizontal support is arranged on the side of the top beam, and the horizontal support includes a mounting screw rod arranged on the side of the top beam, and two supporting blocks are movably mounted on the mounting screw rod, and two adjusting nuts are threadedly mounted on the mounting screw rod, and the two adjusting nuts are located between the two supporting blocks. Two opposite adjusting grooves are arranged on the outer side of the mounting screw rod, and an adjusting block slidably connected to the adjusting groove is arranged on the inner wall surface of the mounting hole of the support block, and an anti-slip portion with a diameter larger than that of the mounting hole of the support block is arranged on the other end of the mounting screw rod.

[0014] The method includes: S1. Before pouring the cap beam, the rear abutment beam and the second embedded part are pre-installed at the preset position, and then the cap beam is poured; S2, complete the installation of the block formwork, the outer formwork support system, the inner formwork support system and the horizontal support in sequence, then install the end crossbeam on its support, and make the inner formwork rest against the end crossbeam; S3, pouring the stopper, after pouring is completed, remove the horizontal support, the abutment adjustment component, the end formwork and the outer formwork, and pull out the inner formwork from above the stopper; S4. Remove the outer formwork support system; S5. Remove the vertical supports, and then pull out the horizontal support components through the rear abutment beam.

[0015] The present invention provides a construction structure and a construction method for a cap beam block in a confined space. By means of an outer formwork support system arranged on the outer side of the cap beam, an inner formwork support system arranged in the gap between the cap beam and the end cross beam, and the abutment relationship between the inner formwork and the end cross beam, effective support for the block formwork can be formed in a narrow space. At the same time, after the construction of the block is completed, the formwork and the supporting structure can be recovered and reused by pulling them outward. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial structural schematic diagram of the present invention; Figure 3 The present invention Figure 2 Another perspective structural diagram; Figure 4 It is a schematic diagram of the structure of the horizontal support component of the present invention; Figure 5 is a cross-sectional structural diagram of the detachable connecting portion of the present invention; Figure 6 This is an exploded view of a half-section structure of the latch assembly of the present invention; Figure 7 It is a schematic diagram of the latch structure of the present invention; Figure 8 The present invention Figure 6 A magnified schematic diagram of the structure B in the middle; Fig. 9 The present invention Figure 3 A schematic diagram of the enlarged structure in the middle; Fig.10 It is a structural diagram of the conflicting components of the present invention; Fig.11 It is a structural diagram of the support unit of the present invention; Fig.12 This is a structural diagram of the abutment adjustment component of the present invention; Fig.13 This is an exploded structural diagram of the abutment unit of the present invention; Fig.14 The present invention Fig.13 Another perspective structural diagram; Fig.15 The present invention Fig.14 A magnified schematic diagram of the C structure; In the figure: cap beam 1; end cross beam 2; block 3; block template 4; outer template 401; inner template 402; end template 403; outer template support system 5; support unit 51; second embedded part 510; horizontal beam 511; diagonal support beam 512; diagonal support 52; inner template support system 6; interference component 61; first embedded part 610; vertical support 611; horizontal support component 62; rear interference beam 601; front interference beam 602; limit rod 603; wire rope 604; abutment rod 605; detachable connection part 606; connecting rod 6060; receiving groove 6061; pull ring 6062; connecting step 6063; tension spring 6064; latch assembly 607; insertion hole 6070; limit block 6071; latch 6072; top cover 6073; limit groove 6074; pop-up spring 6075; inverted L-shaped locking groove 6076; locking housing 607 7; inserting groove 6078; rotating bearing 6079; plug-in cylinder 6080; locking block 6081; rotating gear ring 6082; telescopic groove 6083; sliding groove 6084; adjusting rack 6085; sliding block 6086; return spring 6087; abutment block 6088; abutment adjustment component 63; top beam 630; abutment unit 631; L-shaped support seat 6310; moving groove 6311; positive and negative threaded rod 6312; moving Movable articulated seat 6313; moving block 6314; adjusting arm 6315; abutting plate 6316; driving mechanism 632; linkage sprocket 6320; mounting seat 6321; driving device 6322; transmission sprocket 6323; chain 6324; horizontal support 633; ​​resting screw 6330; adjusting slot 6331; anti-slip portion 6332; supporting block 6333; adjusting block 6334; adjusting nut 6335; installing walkway 7. DETAILED DESCRIPTION

[0017] Example 1 like Figure 1-11 As shown, a construction structure of a cap beam block in a confined space includes a cap beam 1 and an end cross beam 2 installed on the cap beam 1 through a support. Since the end cross beam 2 is installed on the cap beam 1 through the support, a gap is formed between the cap beam 1 and the end cross beam 2.

[0018] The construction structure includes: The block formwork 4 is arranged on the top of the cap beam 1 and in front of the end cross beam 2, and includes an outer formwork 401 located at the edge of the cap beam 1, an inner formwork 402 located in front of the end cross beam 2, and an end formwork 403 installed at both ends of the outer formwork 401 and the inner formwork 402. The inner formwork 402 rests on the end cross beam 2, so that the end cross beam 2 can be used to provide lateral support to the inner formwork 402, wherein the outer formwork 401, the inner formwork 402 and the end formwork 403 are combined to form a mold for the block 3, so as to facilitate casting and molding the block 3 therein. In the present embodiment, the outer formwork 401, the inner formwork 402 and the end formwork 403 are all one-piece or split-assembly steel formworks.

[0019] The outer formwork support system 5 is arranged on the front side of the cap beam 1 and is used to support the outer formwork 401 .

[0020] The inner formwork support system 6 is arranged in the gap between the cap beam 1 and the end cross beam 2 to support the inner formwork 402 .

[0021] There are multiple horizontal supports 633 , which are horizontally arranged in sequence between the top of the outer template 401 and the top of the inner template 402 .

[0022] Such a design can provide effective support for the block template 4 in a confined space, and can be removed by pulling it outwards.

[0023] Furthermore, the inner formwork support system 6 includes a horizontal support component 62 arranged between the cap beam 1 and the end cross beam 2, and a plurality of resistance components 61 horizontally arranged at the top of the rear side of the cap beam 1. The front side of the horizontal support component 62 resists against the bottom of the inner formwork 402, and the rear side resists against the resistance component 62, thereby providing effective support for the bottom of the inner formwork 402.

[0024] Among them, the horizontal support component 62 includes a front contact beam 602 and a rear contact beam 601, and a plurality of connecting parts arranged horizontally and avoiding the end crossbeam 2 support are arranged between the front contact beam 602 and the rear contact beam 601. Such a design can effectively avoid conflict between the connecting parts and the support of the crossbeam 2.

[0025] In this embodiment, the connecting member includes two limit rods 603 symmetrically arranged on opposite sides of the front contact beam 602 and the rear contact beam 601, and a steel wire rope 604 is connected between the two limit rods 603. The steel wire rope 604 can realize the pulling effect between the two. The outside of the steel wire rope 604 is covered with a contact rod 605, and the contact rod 605 is a steel pipe with a hollow interior and open ends. The two limit rods 603 are respectively inserted into the contact rod 605, so that effective support between the front contact beam 602 and the rear contact beam 601 can be formed through the contact rod 605.

[0026] It should be noted that the length of the interference rod 605 needs to meet the distance between the rear edge of the cap beam 1 and the inner template 402. Through such a design, the interference rod 605 can be used to form a support between the front interference beam 602 and the rear interference beam 601 during support. At the same time, when it is necessary to pull it out, it can be pulled out by the traction of the wire rope 604. In addition, through the combination of the wire rope 604 and the interference rod 605, it is convenient to replace the interference rod 605 according to the required length. In addition, the horizontal support component 62 can be an integrated structure or a segmented connection structure.

[0027] Furthermore, in order to prevent the front contact beam 602 from interfering with the support of the cross beam 2 when being pulled out, thereby preventing it from being unable to be pulled out, a detachable connection portion 606 is provided at the support of the end cross beam 2. The detachable connection portion 606 can be separated to form a notch at the support of the cross beam 2 when being pulled out, thereby facilitating its pulling out.

[0028] The detachable connecting part 606 includes two retractable connecting rods 6060, and the end of the front contact beam 602 connected to the connecting rod 6060 is provided with a receiving groove 6061, and the receiving groove 6061 can accommodate the connecting rod 6060 in a retracted state. Pull rings 6062 are symmetrically arranged on the ends of the connecting rod 6060 corresponding to the receiving groove 6061, and a tension spring 6064 is arranged between the two pull rings 6062. The tension spring 6064 is used to pull the connecting rod 6060 that has lost its unlocking into the receiving groove 6061. The opposite ends of the two connecting rods 6060 are respectively provided with mating connecting steps 6063, and the two connecting steps 6063 are provided with latch assemblies 607. The latch assembly 607 connects the two connecting rods 6060 together to form an overall supporting structure.

[0029] The latch assembly 607 includes corresponding sockets 6070 arranged on two connecting steps 6063. When the two connecting steps 6063 are connected, the two sockets 6070 thereon are connected. A latch 6072 is inserted into the socket 6070. The latch 6072 passes through the two sockets 6070 at the same time to realize the connection between the two. Two symmetrical limit blocks 6071 are arranged on the top inner wall of the socket 6070 located on the upper connecting step 6063. A limit groove 6074 that slides with the limit block 6071 is arranged on the outside of the latch 6072. The limit block 6071 slides with the limit groove 6074 to realize the connection between the two by sliding. The bolt 6072 is combined and can effectively limit the telescopic range of the bolt 6072. A top cover 6073 with a larger diameter than the bolt 6072 is provided on the top of the bolt 6072. A pop-up spring 6075 is sleeved on the outside of the bolt 6072. The pop-up spring 6075 is located between the upper connecting step 6063 and the top cover 6073. The bolt 6072 can be bounced upward by utilizing the tension of the pop-up spring 6075 to disengage the bottom end of the bolt from the lower socket 6070, thereby contacting the connection between the two connecting steps 6063. A self-unlocking locking assembly is provided at the bottom of the socket 6070 of the lower connecting step 6063 for locking the bolt 6072 and facilitating unlocking.

[0030] In the preferred embodiment, an inverted L-shaped locking groove 6076 is provided on the outer wall surface at the bottom of the latch pin 6072. The specific number of the inverted L-shaped locking grooves 6076 can be one or more. When the number of the inverted L-shaped locking grooves 6076 is multiple, attention should be paid to the same hour hand distribution. In the present embodiment, the number of the inverted L-shaped locking grooves 6076 is two.

[0031] The self-unlocking locking assembly includes a locking shell 6077, in which an insertion slot 6078 with an open top is provided, a telescopic slot 6083 connected to the insertion slot 6078 is provided on the side of the insertion slot 6078, and the telescopic slot 6083 is open at one end close to the rear abutment beam 601, and a rotating bearing 6079 is provided at the bottom of the insertion slot 6078, and a plug-in cylinder 6080 for inserting the latch pin 6072 is rotatably provided in the rotating bearing 6079, and a plug-in cylinder 6080 is provided on the inner wall surface of the top of the plug-in cylinder 6080. The locking block 6081 is matched with the inverted L-shaped locking groove 6076. When the latch pin 6072 is inserted into the plug-in tube 6080, the locking block 6081 slides into the vertical groove of the inverted L-shaped locking groove 6076. The external fixed sleeve of the plug-in tube 6080 is provided with a rotating gear ring 6082. The outer ring of the rotating gear ring 6082 extends into the telescopic groove 6083. The telescopic groove 6083 is telescopically plugged with an adjusting rack 6085 that meshes with the rotating gear ring 6082. One end of the adjusting rack 6085 is inserted into the telescopic groove 6083. The other end is located outside the telescopic groove 6083 through an opening, so that the extension of the adjusting rack 6085 can be used to adjust the rack 6085 to rotate the plug-in tube 6080. The upper and lower sides of the telescopic groove 6083 are provided with relative sliding grooves 6084. The upper and lower sides of the insertion end of the adjusting rack 6085 are provided with sliding blocks 6086 that slide with the sliding groove 6084. The sliding cooperation between the sliding groove 6084 and the sliding block 6086 can make the extension and contraction of the adjusting rack 6085 more stable. A return spring 6087 is also provided, which contacts the insertion end of the adjusting rack 6085. The tension of the return spring 6087 can keep the adjusting rack 6085 in its initial state. At the same time, in this state, the locking block 6081 penetrates into the bottom of the vertical groove of the L-shaped locking groove 6076, and enters the horizontal groove of the L-shaped locking groove 6076 through the rotation of the plug-in tube 6080, so that the pin 6072 is kept in a locked state at this time. A contact block 6088 is also provided at the other end of the adjusting rack 6085.

[0032] With such a design, when the front abutting beam 602 is pulled out, the abutting block 6088 comes into conflict with the support of the cross beam 2, causing the adjusting rack 6085 to be completely inserted into the telescopic groove 6083, thereby causing the plug-in tube 6080 to rotate, thereby causing the locking block 6081 to slide into the vertical groove of the L-shaped locking groove 6076, thereby releasing the lock, and then the latch 6072 is quickly popped up by the pop-up spring 6075, and the two connecting rods 6060 are respectively retracted into the accommodating groove 6061 under the action of the tension spring 6064, thereby forming a gap in the front abutting beam 602 to facilitate the passage of the support of the cross beam 2.

[0033] In the preferred embodiment, a pressing plate for pressing the top cover 6073 is provided on the outer side of the inner template 402, and the bottom of the pressing plate contacts the top cover 6073 in the locked state, so that the latch 6072 can remain in the locked state to avoid sudden unlocking during support.

[0034] In a preferred embodiment, the interference component 61 includes a first embedded part 610 preset at the top of the rear side of the cap beam 1 , and a vertical support 611 arranged at the outside of the first embedded part 610 and in conflict with the rear interference beam 601 .

[0035] The outer formwork support system 5 includes a plurality of support units 51 horizontally arranged on the front side of the cap beam 1 , and a diagonal brace 52 connected to the outer formwork 401 is arranged on the top of the support unit 51 .

[0036] The support unit 51 includes two second embedded parts 510 arranged in an upper and lower manner and arranged on the front side of the cap beam 1. A horizontal beam 511 is arranged on the outer side of the upper second embedded part 510, and a diagonal bracing beam 512 connected to the horizontal beam 511 is arranged on the outer side of the lower second embedded part 510.

[0037] In this embodiment, the first embedded part 610 and the second embedded part 510 both include an installation panel and a plurality of embedded ribs arranged on the back of the installation panel. The installation panel can be tied to the steel bars of the cap beam 1 through the embedded ribs, and the vertical support 611, horizontal beam 511 and diagonal bracing beam 512 are all fixed to the installation panel by bolts.

[0038] The outer formwork support system 5 also includes an installation walkway 7 arranged on the top of the support unit 51 , so that construction workers can perform construction on the installation walkway 7 .

[0039] Example 2 Further illustrate with reference to Example 1, Figure 3 , 12 -15 shows a structure in which, in order to ensure that the inner formwork 402 has sufficient width to abut against the side of the end crossbeam 2 and to prevent the setting of the inner formwork 402 from affecting the installation of the end crossbeam 2, the inner formwork support system 6 also includes an abutment adjustment component 63 provided between the inner formwork 402 and the end crossbeam 2. The inner formwork 402 abuts against the end crossbeam 2 through the abutment adjustment component 63. The abutment adjustment component 63 can be in a retracted state before the end crossbeam 2 is installed, and when the end crossbeam 2 is installed, it can be opened to abut against the end crossbeam 2.

[0040] The abutment adjustment component 63 includes a top beam 630 and a plurality of abutment units 631 arranged at the bottom of the top beam 630. The abutment unit 631 includes an L-shaped support seat 6310 arranged at the bottom of the top beam 630. A positive and negative threaded rod 6312 is rotatably arranged between the bottom plate of the L-shaped support seat 6310 and the top beam 630. The positive and negative threaded rod 6312 is rotatably installed on the bottom plate of the L-shaped support seat 6310 and the top beam 630 through bearings. A movable groove 6311 is arranged on the side wall of the L-shaped support seat 6310. The top end of 312 passes through the top of the top beam 630, which is convenient for rotating it from the top end, and symmetrical adjustment components are respectively provided on the two opposite threads thereon, and the adjustment components include a movable hinge seat 6313 threadedly mounted on the outside of the positive and negative thread rods 6312, an adjustment arm 6315 is hingedly provided on the movable hinge seat 6313, and a moving block 6314 slidingly matched with the moving groove 6311 is provided on the back side, and the other ends of the adjustment arms 6315 of the two adjustment components are hingedly provided with the same abutment plate 6316.

[0041] With such a design, the movable hinged seat 6313 of the two adjustment components can be driven to move in relative or separate directions under the restriction of the movable block 6314 and the movable groove 6311 by the rotation of the forward and reverse screw rods 6312, so that the position of the abutment plate 6316 can be adjusted through the adjustment arm 6315 hinged thereon, so that it can contact with the end cross beam 2.

[0042] In the preferred embodiment, in order to facilitate the simultaneous adjustment of multiple abutment units 631, the abutment adjustment component 63 also includes a driving mechanism 632 for synchronously adjusting all abutment units 631, and the driving mechanism 632 includes two linkage sprockets 6320 arranged on the protruding ends of the positive and negative threaded rods 6312 of each abutment unit 631, and the positive and negative threaded rods 6312 are connected to the two adjacent positive and negative threaded rods 6312 on the left and right through two different linkage sprockets 6320 through a chain 6324, as shown in FIG. Fig.12 As shown, all the positive and negative threaded rods 6312 are connected by a plurality of chains 6324, a mounting seat 6321 is provided at one end of the top beam 630, a driving device 6322 is installed on the mounting seat 6321, a transmission sprocket 6323 is provided at the output end of the driving device 6322, and the transmission sprocket 6323 is connected to the interlocking sprocket 6320 of the adjacent positive and negative threaded rods 6312 by the chain 6324, so that all the positive and negative threaded rods 6312 connected by the transmission can rotate synchronously through the power of the driving device 6322 and the transmission of the interlocking sprocket 6320, thereby achieving the effect of synchronous regulation.

[0043] It should be noted that the driving device 6322 is a driving motor with a braking function.

[0044] In order to facilitate the installation of the abutment adjustment component 63 , a horizontal support 633 is provided on the side of the top beam 630 , so that the abutment adjustment component 63 can be hoisted on the side of the inner template 402 through the horizontal support 633 .

[0045] The horizontal support 633 includes a placing screw rod 6330 arranged on the side of the top beam 630, so that it can place itself and the abutment adjustment component 63 on the block template 4, and two support blocks 6333 are movably mounted on the placing screw rod 6330, and two adjustment nuts 6335 are threadedly mounted. The two adjustment nuts 6335 are located between the two support blocks 6333. The two support blocks 6333 can be slidably abutted against the inner side of the outer template 401 or the inner template 402 respectively, and a locking effect is achieved through the two adjusting nuts 6335, thereby achieving horizontal support on the top of the block template 4 while installing the abutment adjustment component 63 on the side of the inner template 402.

[0046] Two opposite adjustment grooves 6331 are arranged on the outer side of the shelf screw 6330, and an adjustment block 6334 slidingly connected to the adjustment groove 6331 is arranged on the inner wall surface of the fitting hole of the support block 6333, which can effectively prevent the support block 6333 from deflecting. The other end of the shelf screw 6330 is provided with an anti-detachment part 6332 with a diameter larger than the fitting hole of the support block 6333, so as to prevent the support block 6333 from detaching.

[0047] In addition, when dismantling, the abutment plate 6316 is retracted to release its interference with the end cross beam 2, and then it is clamped and fixed in contact with the support block 6333, and then it can be pulled out upward.

[0048] Example 3 In combination with Embodiments 1 and 2, a construction method for a construction structure of a cap beam block under a confined space is further described, the method comprising: S1. Before pouring the cap beam 1, pre-install the rear abutment beam 601 and the second embedded part 510 at a preset position, and then pour the cap beam 1; S2, sequentially complete the installation of the block formwork 4, the outer formwork support system 5, the inner formwork support system 6 and the horizontal support 633, then install the end cross beam 2 onto its support, and make the inner formwork 402 abut against the end cross beam 2; S3, pouring the stopper 3, after pouring, remove the horizontal support 633, the abutment adjustment component 63, the end template 403 and the outer template 401, and pull out the inner template 402 from above the stopper 3; S4, dismantling the outer formwork support system 5; S5. Remove the vertical support 611 and then pull out the horizontal support component 62 through the rear abutment beam 601.

[0049] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limiting the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A construction structure of a cap beam block under a confined space, comprising a cap beam (1) and an end cross beam (2) mounted on the cap beam (1) via a support, wherein a gap is formed between the cap beam (1) and the end cross beam (2), and wherein: The construction structure includes: A block template (4) is arranged on the top of the cap beam (1) and located in front of the end cross beam (2), comprising an outer template (401) located at the edge of the cap beam (1), an inner template (402) located in front of the end cross beam (2), and an end template (403) installed at both ends of the outer template (401) and the inner template (402), wherein the inner template (402) abuts against the end cross beam (2); An outer formwork support system (5), arranged on the front side of the cap beam (1) and used for supporting the outer formwork (401); An inner formwork support system (6) is disposed in the gap between the cap beam (1) and the end cross beam (2) and is used to support the inner formwork (402); There are multiple horizontal supports (633), which are horizontally arranged in sequence between the top of the outer template (401) and the top of the inner template (402).

2. The construction structure of the lower cap beam block in a confined space according to claim 1 is characterized in that: The inner formwork support system (6) comprises a horizontal support component (62) arranged between the cap beam (1) and the end cross beam (2), and a plurality of interference components (61) arranged horizontally at the top of the rear side of the cap beam (1), wherein the front side of the horizontal support component (62) is in contact with the bottom of the inner formwork (402), and the rear side is in contact with the interference component (62).

3. The construction structure of the lower cap beam block in a confined space according to claim 2 is characterized in that: The horizontal support component (62) comprises a front abutment beam (602) and a rear abutment beam (601), and a plurality of connecting members arranged horizontally and avoiding the end crossbeam (2) support are provided between the front abutment beam (602) and the rear abutment beam (601).

4. The construction structure of the lower cap beam block in a confined space according to claim 3 is characterized by: The front abutment beam (602) is provided with a detachable connection portion (606) at a support of the end cross beam (2); The detachable connecting portion (606) comprises two retractable connecting rods (6060); an accommodating groove (6061) is provided at the end of the front contact beam (602) connected to the connecting rod (6060); pull rings (6062) are symmetrically provided at the ends of the connecting rod (6060) corresponding to the accommodating groove (6061); a tension spring (6064) is provided between the two pull rings (6062); and matching connecting steps (6063) are respectively provided at the opposite ends of the two connecting rods (6060); and latch assemblies (607) are provided in the two connecting steps (6063).

5. The construction structure of the lower cap beam block in a confined space according to claim 4 is characterized in that: The latch assembly (607) comprises a socket (6070) arranged on two connecting steps (6063) and corresponding to each other, a latch (6072) being inserted into the socket (6070), two symmetrical limit blocks (6071) being arranged on the top inner wall of the socket (6070) located on the upper connecting step (6063), a limit groove (6074) being arranged on the outside of the latch (6072) and being slidably matched with the limit blocks (6071), a top cover (6073) having a larger diameter than the latch (6072) being arranged on the top of the latch (6072), a pop-up spring (6075) being sleeved on the outside of the latch (6072), the pop-up spring (6075) being arranged between the upper connecting step (6063) and the top cover (6073), and a self-unlocking locking assembly being arranged on the bottom of the socket (6070) located on the lower connecting step (6063).

6. The construction structure of the lower cap beam block in a confined space according to claim 4 is characterized in that: An inverted L-shaped locking groove (6076) is provided on the outer wall surface of the bottom of the latch (6072); The self-unlocking locking assembly comprises a locking shell (6077), wherein an insertion groove (6078) having an open top is provided in the locking shell (6077), a telescopic groove (6083) connected thereto is provided on the side of the insertion groove (6078), an end of the telescopic groove (6083) close to the rear abutting beam (601) is open, a rotating bearing (6079) is provided at the bottom of the insertion groove (6078), a plug-in cylinder (6080) for inserting a latch pin (6072) is rotatably provided in the rotating bearing (6079), a locking block (6081) matched with the inverted L-shaped locking groove (6076) is provided on the inner wall surface of the top of the plug-in cylinder (6080), and the plug-in cylinder (6080) is provided with a plurality of locking blocks. A rotating gear ring (6082) is mounted on the outside, and the outer ring of the rotating gear ring (6082) extends into the telescopic groove (6083). An adjusting rack (6085) meshing with the rotating gear ring (6082) is telescopically inserted into the telescopic groove (6083). Opposite sliding grooves (6084) are arranged on the upper and lower sides of the telescopic groove (6083). Sliding blocks (6086) slidably matched with the sliding groove (6084) are arranged on the upper and lower sides of the insertion end of the adjusting rack (6085). A return spring (6087) abutting against the insertion end of the adjusting rack (6085) is also arranged in the sliding groove (6084). A resisting block (6088) is also arranged at the other end of the adjusting rack (6085).

7. A construction structure of a cap beam block under a confined space according to any one of claims 3 to 6, characterized in that: The connecting member comprises two limit rods (603) symmetrically arranged on opposite sides of the front abutment beam (602) and the rear abutment beam (601); a steel wire rope (604) is connected between the two limit rods (603); a resistance rod (605) is sleeved outside the steel wire rope (604); and the two limit rods (603) are respectively plugged into the resistance rods (605).

8. A construction structure of a cap beam block under a confined space according to any one of claims 2 to 6, characterized in that: The abutment component (61) comprises a first embedded part (610) preset at the top of the rear side of the cap beam (1), and a vertical support (611) arranged outside the first embedded part (610) and abutting against the rear abutment beam (601); The outer formwork support system (5) comprises a plurality of support units (51) arranged horizontally on the front side of the cap beam (1), and a diagonal brace (52) connected to the outer formwork (401) is arranged on the top of the support unit (51); The support unit (51) comprises two second embedded parts (510) arranged in an upper and lower manner and arranged on the front side of the cap beam (1); a horizontal beam (511) is arranged on the outer side of the second embedded part (510) located at the upper side, and a diagonal bracing beam (512) connected to the horizontal beam (511) is arranged on the outer side of the second embedded part (510) located at the lower side; The outer formwork support system (5) further comprises an installation walkway (7) arranged on the top of the support unit (51).

9. The construction structure of the lower cap beam block in a confined space according to claim 8 is characterized in that: The inner template support system (6) further comprises abutment adjustment component (63) arranged between the inner template (402) and the end cross beam (2), and the inner template (402) is abutted against the end cross beam (2) via the abutment adjustment component (63); The abutment adjustment component (63) comprises a top beam (630) and a plurality of abutment units (631) arranged at the bottom of the top beam (630), the abutment units (631) comprising an L-shaped support seat (6310) arranged at the bottom of the top beam (630), a forward and reverse threaded rod (6312) rotatably arranged between the bottom plate of the L-shaped support seat (6310) and the top beam (630), a movable groove (6311) being arranged on the side wall of the L-shaped support seat (6310), and the top end of the forward and reverse threaded rod (6312) extending from the top beam The top of the beam (630) is passed through, and two opposite threads are respectively provided with symmetrical adjustment components, the adjustment components comprising a movable hinge seat (6313) threadedly sleeved on the outside of the positive and negative thread rods (6312), an adjustment arm (6315) is hingedly provided on the movable hinge seat (6313), and a moving block (6314) slidably matched with the moving groove (6311) is provided on the back side, and the other ends of the adjustment arms (6315) of the two adjustment components are hingedly provided with the same abutment plate (6316); The abutment adjustment component (63) further comprises a driving mechanism (632) for synchronously adjusting all abutment units (631), the driving mechanism (632) comprising two interlocking sprockets (6320) arranged on the protruding end of the positive and negative threaded rod (6312) of each abutment unit (631), the positive and negative threaded rod (6312) being connected to two positive and negative threaded rods (6312) adjacent to each other on the left and right through two different interlocking sprockets (6320) through a chain (6324), a mounting seat (6321) being arranged at one end of the top beam (630), a driving device (6322) being mounted on the mounting seat (6321), a transmission sprocket (6323) being arranged at the output end of the driving device (6322), and the transmission sprocket (6323) being connected to the interlocking sprockets (6320) of the adjacent positive and negative threaded rods (6312) through a chain (6324); The horizontal support (633) is arranged on the side of the top beam (630), and the horizontal support (633) includes a placing screw rod (6330) arranged on the side of the top beam (630), two supporting blocks (6333) are movably mounted on the placing screw rod (6330), and two adjusting nuts (6335) are threadedly mounted thereon, and the two adjusting nuts (6335) are located between the two supporting blocks (6333). Two adjusting grooves (6331) opposite to each other are arranged on the outer side of the placing screw rod (6330), and an adjusting block (6334) slidably connected to the adjusting groove (6331) is arranged on the inner wall surface of the mounting hole of the supporting block (6333), and an anti-slip portion (6332) having a diameter larger than that of the mounting hole of the supporting block (6333) is arranged at the other end of the placing screw rod (6330).

10. A construction method for a construction structure of a cap beam block under a confined space according to any one of claims 1 to 9, characterized in that: The method includes: S1. Before pouring the cap beam (1), pre-install the rear abutment beam (601) and the second embedded part (510) at a preset position, and then pour the cap beam (1); S2, sequentially completing the installation of the block formwork (4), the outer formwork support system (5), the inner formwork support system (6) and the horizontal support (633), and then installing the end cross beam (2) onto its support, and making the inner formwork (402) abut against the end cross beam (2); S3, pouring the stopper (3), after pouring is completed, removing the horizontal support (633), the abutment adjustment component (63), the end template (403) and the outer template (401), and pulling out the inner template (402) from above the stopper (3); S4, dismantle the outer formwork support system (5); S5. Remove the vertical support (611), and then extract the horizontal support component (62) through the rear abutment beam (601).

Images