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CN-122013914-A - UHPC film shell shear wall template

CN122013914ACN 122013914 ACN122013914 ACN 122013914ACN-122013914-A

Abstract

The invention relates to the technical field of shear walls, and discloses a UHPC film shell shear wall template, which comprises a first wallboard body, wherein a second wallboard body is arranged on the right side of the first wallboard body, seam anti-cracking mechanisms are arranged in the first wallboard body and the second wallboard body, wall anti-cracking mechanisms are arranged in the first wallboard body and the second wallboard body, each seam anti-cracking mechanism comprises a waveform occlusion block, and waveform occlusion blocks are arranged on opposite sides of the first wallboard body and the second wallboard body. According to the invention, through the design of the waveform occlusion joint for dispersing stress and continuously transmitting tensile force by fibers and the design of the three-dimensional fiber reinforced plate, three dimensions are controlled from a stress transmission path, the continuity of a tensile system and crack extension, so that the problems of easy cracking and slurry leakage at the joint and limited self crack resistance of the plate of the traditional UHPC permanent template are solved, and the overall performance from a connection structure to material compounding is improved.

Inventors

  • XIA ZONGJUN
  • LUAN HUANQIANG
  • LI HUIPING
  • HAO JIANCHENG
  • WANG QIANG
  • WU DAWEI
  • ZHANG MENG
  • ZHU ZHIYU
  • Deng Jiangdan
  • SUN HAOMIN
  • CHEN PANFENG
  • WEI JINBEI
  • WANG KUN
  • CHEN XIANLEI

Assignees

  • 中铁十五局集团有限公司
  • 中铁十五局集团城市建设工程有限公司

Dates

Publication Date
20260512
Application Date
20260212

Claims (10)

  1. 1. The UHPC film shell shear wall template comprises a first wallboard body (1) and is characterized in that a second wallboard body (2) is arranged on the right side of the first wallboard body (1), joint anti-cracking mechanisms (3) are arranged in the first wallboard body (1) and the second wallboard body (2), and wall anti-cracking mechanisms (4) are arranged in the first wallboard body (1) and the second wallboard body (2); The seam anti-cracking mechanism (3) comprises a waveform occluding block (301), occluding grooves (302), buffering cushions (303), inserting rods (304), inserting grooves (305), through holes (306), expansion screws (307), positioning holes (308) and prestress clamping components (309), the waveform occluding block (301) is arranged on the opposite sides of the first wallboard body (1) and the second wallboard body (2), occluding grooves (302) are formed in the first wallboard body (1) and the second wallboard body (2), buffering cushions (303) are arranged in the occluding grooves (302), inserting grooves (304) are fixedly arranged on the right side of the first wallboard body (1), inserting grooves (305) are formed in the second wallboard body (2), through holes (306) are formed in the inserting rods (304), the top of the second wallboard body (2) is provided with the expansion screws (307), positioning holes (308) are formed in the front side and the rear side of the waveform occluding block (301), and the prestress clamping components (309) are arranged on the outer sides of the first wallboard body (1) and the second wallboard body (2).
  2. 2. The UHPC film shell shear wall template of claim 1, wherein the pre-stress clamping assembly (309) comprises a first clamping plate (3091), a transverse plate (3092), an extending plate (3093), a sliding block (3094), a sliding port (3095), a second clamping plate (3096), an adjusting screw (3097), a locking screw hole (3098) and a tensioning screw (3099), the front side of the first wallboard body (1) is provided with the first clamping plate (3091), the rear side of the first clamping plate (3091) is connected with the transverse plate (3092), the extending plate (3093) is movably mounted in the transverse plate (3092), sliding ports (3095) are fixedly mounted on the left side and the right side of the extending plate (3093), the sliding port (3095) with two sliding ports are formed in the interior of the transverse plate (3092), the second clamping plate (3096) is mounted on the rear side of the extending plate (3093), the top of the extending plate (3093) is provided with the adjusting screw hole (3097), and the front side of the extending plate (3098) is provided with the locking screw hole (3099).
  3. 3. A UHPC film shell shear wall form as in claim 1, wherein the wave-shaped engagement blocks (301) and the engagement grooves (302) are mutually, and the side of the insert rod (304) away from the first wall plate body (1) is arranged inside the insert groove (305).
  4. 4. The UHPC film shell shear wall template of claim 2, wherein the bottom of the expansion screw (307) extends into the second wallboard body (2) and is in threaded connection with the inserting rod (304), the first clamping plate (3091) and the second clamping plate (3092) are located at the joint of the first wallboard body (1) and the second wallboard body (2), and the first clamping plate (3091) and the second clamping plate (3092) are located on the front side and the rear side of the first wallboard body (1) respectively.
  5. 5. The UHPC film shell shear wall template of claim 2, wherein opposite sides of the two sliding blocks (3094) extend into the sliding ports (3095), and the stretching screw (3099) penetrates through the positioning hole (308) to be in threaded connection with the wave-shaped engagement block (301).
  6. 6. The UHPC film shell shear wall template of claim 1, wherein the wall anti-cracking mechanism (4) comprises a carbon fiber mesh cloth (401), a carbon fiber mesh (402), a chopped steel fiber mat (403) and a basalt fiber mesh (404), the carbon fiber mesh cloth (401) is arranged in the first wall board body (1) and the second wall board body (2), the carbon fiber mesh cloth (401) is provided with the carbon fiber mesh (402) at the rear side, the carbon fiber mesh chopped steel fiber mat (403) is arranged at the rear side of the carbon fiber mesh (402), and the carbon fiber mesh basalt fiber mesh (404) is arranged at the rear side of the chopped steel fiber mat (403).
  7. 7. The UHPC film shell shear wall template of claim 6, wherein the carbon fiber net (402), the chopped steel fiber mat (403) and the basalt fiber net (404) are bonded with the inner walls of the first wallboard body (1) and the second wallboard body (2) through silane coupling agents KH-550.
  8. 8. The UHPC film shell shear wall template of claim 6, wherein the wave height of the wave-shaped engagement blocks (301) is 15mm, the wave length is 50mm, the carbon fiber mesh cloth (401) is three layers, the spacing between each layer is 8mm, the exposed length is 100mm, and the exposed carbon fiber mesh cloth (401) of the first wallboard body (1) and the exposed carbon fiber mesh cloth (401) of the second wallboard body (2) are in cross lap joint.
  9. 9. The UHPC film shell shear wall template of claim 6, wherein the buffer pad (302) is a polytetrafluoroethylene modified nitrile rubber strip with the thickness of 8mm, the inside of the engagement groove (302) is filled with quick-hardening UHPC sealing paste, the warp tensile strength of the carbon fiber mesh (402) is more than or equal to 3500MPa, the weft tensile strength of the basalt fiber mesh (404) is more than or equal to 2800MPa, and the fiber length of the chopped steel fiber mat (403) is 12mm.
  10. 10. The UHPC film shell shear wall template of claim 9, wherein the compressive strength of the quick-hardening UHPC sealing paste is more than or equal to 120MPa, the quick-hardening UHPC sealing paste is filled in a high-pressure grouting mode, the carbon fiber mesh cloth (401), the carbon fiber mesh (402), the chopped steel fiber felt (403) and the basalt fiber mesh (404) are arranged on the same horizontal line, the carbon fiber mesh cloth (401) is divided into two groups, and the two groups of carbon fiber mesh cloths (401) are respectively arranged on the front side and the rear side of the waveform engagement block (301).

Description

UHPC film shell shear wall template Technical Field The invention relates to the technical field of shear walls, in particular to a UHPC film shell shear wall template. Background Shear walls are key vertical members used for resisting horizontal loads (such as wind loads, earthquake actions and the like) in building structures, and have the core function of transmitting horizontal forces to a foundation through self rigidity and strength, so that the overall stability and safety of a building are guaranteed. Ultra-high performance concrete (UHPC) is widely used as a permanent formwork in construction engineering by virtue of excellent mechanical properties and durability. However, the existing UHPC film shell template has two main technical problems in practical application, namely that firstly, the joint of the adjacent film shell plates adopts a plane rigid connection or a simple lap joint structure, the contact area is small, cracking and slurry leakage are easily caused by stress concentration during concrete pouring, and the structural tightness and durability are affected; in the prior art, the solution to the problems is to rely on the traditional split bolt to penetrate through a fixed structure, a single-layer fiber reinforced structure or a single sealing structure, but when the split shear wall is used, the stress concentration at the joint is easy to be aggravated due to rigid connection, the single fiber reinforced crack resistance is limited, the traditional split bolt breaks the integrity of the plate and cannot be recycled, and the sealing structure is difficult to meet the requirements of buffering property and rigid sealing, so that the UHPC film shell shear wall template is provided to solve the problems. Disclosure of Invention Aiming at the defects of the prior art, the invention provides the UHPC film shell shear wall template, which has the advantage of better use effect, and solves the problems of seam cracking slurry leakage and irregular plate crack expansion of the existing UHPC film shell permanent template. Technical proposal The invention provides a UHPC film shell shear wall template which comprises a first wallboard body, wherein a second wallboard body is arranged on the right side of the first wallboard body, seam anti-cracking mechanisms are arranged in the first wallboard body and the second wallboard body, and wall anti-cracking mechanisms are arranged in the first wallboard body and the second wallboard body; The seam anti-cracking mechanism comprises a waveform occluding block, an occluding groove, a buffer cushion, an inserting rod, a slot, a through hole, expansion screws, positioning holes and a prestress clamping component, wherein the waveform occluding block is arranged on one side opposite to the first wallboard body and the second wallboard body, the occluding groove is formed in the first wallboard body and the second wallboard body, the buffer cushion is arranged in the occluding groove, the inserting rod is fixedly arranged on the right side of the first wallboard body, the slot is formed in the second wallboard body, the through hole is formed in the inserting rod, the expansion screws are arranged at the top of the second wallboard body, the positioning holes are formed in the front side and the rear side of the waveform occluding block, and the prestress clamping component is arranged outside the first wallboard body and the second wallboard body. Preferably, the prestressing force clamping assembly includes first grip block, diaphragm, extension board, slider, sliding port, second grip block, adjusting screw, locking screw and stretch-draw screw, the front side of first wallboard body is provided with first grip block, the rear side of first grip block is connected with the diaphragm, the inside movable mounting of diaphragm has the extension board, the equal fixed mounting of left and right sides of extension board has the slider, the sliding port that is two in quantity has been seted up to the inside of diaphragm, the second grip block is installed to the rear side of extension board, the top of extension board is provided with adjusting screw, locking screw has been seted up to the inside of extension board, the front side of first grip block is provided with the stretch-draw screw. Preferably, the wave-shaped engagement block and the engagement groove are mutually, and one side, far away from the first wallboard body, of the inserted link is arranged inside the slot. Preferably, the bottom of the expansion screw extends to the inside of the second wallboard body and is in threaded connection with the inserting rod, the first clamping plate and the second clamping plate are both located at the joint of the first wallboard body and the second wallboard body, and the first clamping plate and the second clamping plate are respectively located at the front side and the rear side of the first wallboard body. Preferably, two opposite sides of the sliding