CN-117684748-B - Construction method of hollow slab wall

CN117684748BCN 117684748 BCN117684748 BCN 117684748BCN-117684748-B

Abstract

The invention belongs to the technical field of building construction, and provides a construction method of a hollow slab wall body, which comprises a plurality of hollow slabs, wherein supports are detachably arranged at four slab corners of each hollow slab, and inner sleeves on the supports are inserted into through holes in the hollow slabs. Compared with the prior art, the invention has the advantages that after the prefabricated hollow floor slab, namely the cavity is poured and molded, the inner sleeve can be taken out from the through hole, the whole bracket can be taken down from the hollow slab, and the bracket can be reused, thereby reducing the construction cost.

Inventors

ZHOU HAITAO
HU JIACHENG
LI MENGMENG
JIANG QINGYUN
WU RONGXING
WANG XIAOMING
YU LANZHEN
ZHENG DONG
SHI WEI
ZHOU LILI
YI SHIXIANG
WANG SISHI

Assignees

宁波职业技术学院

Dates

Publication Date: 20260505
Application Date: 20230327

Claims (8)

1. A construction method of a hollow slab wall body is characterized by comprising a plurality of hollow slabs, wherein detachable supports are arranged at four slab corners of each hollow slab, so that inner sleeves on the supports are inserted into through holes in the hollow slabs, after a crane lifts the supports, the inner sleeves can prop against the through holes, the supports form a U-shaped structure, and the supports of the U-shaped structure can level the four slab corners of the hollow slab, and the construction method comprises the following steps: s1, lifting the hollow slab at the head end through a crane, and vertically standing the hollow slab at the head end on a mounting surface through position adjustment between a bolt and a support; s2, filling a gap between the hollow slab at the head end and the mounting surface by pouring mortar, and entering the next step after the mortar is solidified; S3, lifting the next hollow plate to the upper surface of the previous hollow plate through a crane; S4, after the next hollow plate and the last hollow plate are positioned on the same vertical plane in space, screwing bolts into the support of the next hollow plate and the support of the last hollow plate to enable the support of the next hollow plate to be connected with the support of the last hollow plate; S5, filling a gap between the next hollow plate and the previous hollow plate by pouring mortar, and entering the next step after the mortar is solidified; s6, judging whether all the hollow plates are installed, if so, dismantling the supports on the hollow plates to form wallboards, and if not, returning to the step S3; And S7, installing steel structural columns at two ends of the wallboard, and connecting the structural columns with prestressed reinforcement extending out of the longitudinal end of the hollow slab, thereby forming the wall body.
2. The method of constructing a hollow slab wall according to claim 1, wherein the support has a first region, a second region and a third region, and the first region and the third region have a higher level than the second region.
3. The method of constructing a hollow slab wall according to claim 2, wherein a first connecting portion is formed between the first region and the second region, a second connecting portion is formed between the second region and the third region, the first region and the second region are each disposed perpendicularly to the first connecting portion, and the second region are each disposed perpendicularly to the second connecting portion.
4. A method of constructing a hollow slab wall as claimed in claim 3 wherein the end wall of the inner sleeve adjacent the support is connected to the second region by a connecting handle.
5. The construction method of the hollow slab wall body according to claim 1, wherein the wall of the inner sleeve is of a polygonal structure.
6. A method of constructing a hollow slab wall as claimed in claim 1 wherein the length of the inner sleeve is longer than the length of the support.
7. A method of constructing a hollow slab wall as claimed in claim 3 wherein said first and third regions are provided with first threaded bores and said bolts are threadedly connected to said first threaded bores.
8. A method of constructing a hollow slab wall as claimed in claim 3 wherein a second threaded hole is provided in the second region, the second threaded hole being threadably connected to a hanger, the hanger being connected to a crane.

Description

Construction method of hollow slab wall Technical Field The invention belongs to the technical field of building construction, and particularly relates to a construction method of a hollow slab wall. Background The conventional hollow slab stacking mode can be as shown in fig. 2 to 3, and a structural system based on the hollow slab can be formed by adopting a mode of stacking the hollow slabs horizontally up and down and matching with the structural steel constructional columns and the ring beams. In the forming process of the structural system, the hollow slab is lifted in place, the hollow slab is temporarily placed vertically, and the temporary fixing construction of the upper and lower hollow slabs is an important construction link of the system building. 1. The conventional lifting mode of the hollow slab is horizontal lifting, as shown in fig. 4 and 5, the lifting mode is obviously unfavorable for the transverse upward installation and fixation of the subsequent hollow slab, 2, as shown in fig. 6, a long steel pipe can be adopted to pass through a through hole at the end part of the hollow slab, and then the two ends of the steel pipe are tied up to a sling to realize the transverse upward lifting of the hollow slab, but the lifting equipment cannot support the temporary installation, fixation and verticality calibration work after the subsequent hollow slab is in place, 3, or the vertical placement and fixation of a precast shear wall body is usually realized by adopting a mode of connecting a wall body embedded part with a diagonal brace fixed on a floor, and the building system is a novel system, and the vertical installation and temporary fixation modes of the upper layer and the lower layer of the single-piece hollow slab related to the concomitant installation method of the novel system are not referred to by general technology, for example, the installation of the precast shear wall body is realized by adopting the precast shear wall body, a large amount of man-hour is consumed only for the installation of the embedded part, and the strength of the hollow slab can be degraded. The diagonal bracing members may also interfere with other construction activities of the floor. The cross section structure of the special prestress hollow slab is shown in figure 7, all the hole shapes are geometrically asymmetric, the end part of the hollow slab is provided with an oblique groove, the slab surface is not vertical, and the hollow slab cannot stand up by the geometrical shape when being transversely upwards (rotated by 90 degrees in figure 7). Disclosure of Invention The invention aims to solve the technical problem of the prior art, and provides a construction method capable of quickly and firmly assembling hollow plates into a wall body. The invention provides a construction method of a hollow slab wall body, which solves the technical problems and comprises the following steps that a plurality of hollow slabs are provided with detachable supports at four slab corners, and inner sleeves on the supports are inserted into through holes in the hollow slabs, wherein the method comprises the following steps: s1, lifting the hollow plate at the head end through a crane, and vertically standing the hollow plate at the head end on a mounting surface through position adjustment between a bolt and a support; s2, filling a gap between the hollow slab at the head end and the mounting surface by pouring mortar, and entering the next step after the mortar is solidified; S3, lifting the next hollow plate to the upper surface of the previous hollow plate through a crane; s4, after the next hollow plate and the last hollow plate are positioned on the same vertical plane in space, connecting the next hollow plate with the last hollow plate by screwing bolts into the support of the next hollow plate and the support of the last hollow plate; S5, filling a gap between the next hollow plate and the previous hollow plate by pouring mortar, and entering the next step after the mortar is solidified; s6, judging whether all the hollow plates are installed, if so, dismantling the supports on the hollow plates to form wallboards, and if not, returning to the step S3; And S7, installing steel structural columns at two ends of the wallboard, and connecting the structural columns with prestressed reinforcement extending out of the longitudinal end of the hollow slab, thereby forming the wall body. In the construction method of the hollow slab wall body, the support is provided with a first area, a second area and a third area, and the horizontal heights of the first area and the third area are higher than those of the second area. In the construction method of the hollow slab wall body, a first connecting portion is formed between the first area and the second area, a second connecting portion is formed between the second area and the third area, the first area and the second area are perpendicular to the first connecting portion,