CN-224227848-U - High-strength steel bar UHPC rib plate pipe gallery structure with enlarged end connection

CN224227848UCN 224227848 UCN224227848 UCN 224227848UCN-224227848-U

Abstract

The utility model relates to a high-strength reinforced UHPC rib plate pipe gallery structure with an enlarged end connection, which is formed by enclosing a top plate, a side plate and a bottom plate and is made of ultra-high performance concrete by cast-in-situ, wherein the inner sides of the top plate, the side plate and the bottom plate are fixedly connected through large transverse ribs which are enclosed into a frame, small longitudinal ribs are vertically arranged on the large transverse ribs on the top plate and the bottom plate in a penetrating manner, a plurality of vertically extending enlarged end heads are arranged at intervals on the outer sides of the side plates, two adjacent pipe galleries are in propping connection through the enlarged end heads and are fixed through bolts, and the connection between the side plate and the bottom plate is reinforced through the arrangement of axillary angle steel ribs so as to improve the integrity and durability of the whole structure. The enlarged end is trapezoidal in cross section, so that stress concentration is reduced, durability is enhanced, and site construction and installation are facilitated. The pipe gallery segments are connected by high-strength bolts, so that the overall connection strength and the earthquake resistance are ensured.

Inventors

XIA ZHANGHUA
YANG YUSHU
ZHANG XIANRONG
XU YOUSHENG
LIN LIANZHI
Xie Houjie
LIN YOUQIN

Assignees

福州大学

Dates

Publication Date: 20260512
Application Date: 20250530

Claims (8)

1. The high-strength reinforced UHPC rib plate pipe gallery structure with the enlarged ends connected is formed by enclosing a top plate, a side plate and a bottom plate, and is characterized in that the inner sides of the top plate, the side plate and the bottom plate are fixedly connected through large transverse ribs which are enclosed into a frame, small longitudinal ribs are vertically arranged on the large transverse ribs on the top plate and the bottom plate in a penetrating mode, a plurality of vertically extending enlarged ends are arranged on the outer sides of the side plates at intervals, and two adjacent pipe galleries are connected in a propping mode through the enlarged ends and are fixed through bolts.
2. The enlarged footing connected high-strength steel UHPC rib plate gallery structure of claim 1, wherein the enlarged footing has a right trapezoid cross-section.
3. The enlarged footing connected high-strength steel UHPC ribbed plate gallery structure of claim 2, wherein the right-angle sides of the enlarged footing are fixedly connected with the outer side surfaces of the side plates.
4. The enlarged footing connected high-strength steel UHPC rib plate pipe gallery structure of claim 1, wherein the enlarged footing is provided with a plurality of pre-formed bolt holes along the length direction, and the pre-formed bolt holes longitudinally penetrate through the enlarged footing.
5. The enlarged end connected high strength steel UHPC ribbed plate gallery structure of claim 1, wherein the enlarged end has steel bars in right trapezoid array and is connected via trapezoid hoops.
6. The enlarged end connected high-strength steel bar UHPC ribbed plate gallery structure of claim 1, wherein the large transverse ribs and the small longitudinal ribs are staggered in a cross shape, and the high-strength steel bars are penetrated in the large transverse ribs.
7. The enlarged end connected high-strength steel UHPC ribbed slab gallery structure of claim 1, wherein the upper plate and the side plates and the bottom plate and the side plates are respectively connected with axillary angle steel bars.
8. The enlarged end connected high-strength steel UHPC ribbed slab gallery structure of claim 1, wherein the side plates are symmetrically arranged in two groups, and the large transverse ribs are surrounded to form a square frame shape.

Description

High-strength steel bar UHPC rib plate pipe gallery structure with enlarged end connection Technical Field The utility model relates to a high-strength steel bar UHPC rib plate pipe gallery structure for expanding end connection. Background Utility tunnel is a large utility structure, also known as a utility tunnel. The utility tunnel has the main functions of integrating water, electricity, gas and other engineering pipelines into a whole by utilizing a tunnel space built underground, and realizing unified management and unified maintenance of various pipelines underground. The utility tunnel structure in the prior art is constructed by assembling the prefabricated pipe gallery segments of multiple sections, specifically, the position of two adjacent prefabricated pipe gallery segments is adjusted by means of hoisting equipment so that the two pipe gallery segments are connected coaxially, then the prefabricated pipe gallery segments are fastened through a plurality of embedded bolts on the pipe gallery segments, and finally, the gap between the two pipe gallery segments is subjected to waterproof treatment. However, most of the existing pipe gallery structures have the problem of insufficient durability caused by stress concentration, are inconvenient to construct and install on site, and are time-consuming and labor-consuming. Disclosure of utility model In view of the defects of the prior art, the technical problem to be solved by the utility model is to provide the high-strength reinforcing steel UHPC rib plate pipe gallery structure for expanding end connection, which is reasonable in structure and convenient and quick. In order to solve the technical problems, the technical scheme is that the high-strength reinforced UHPC rib plate pipe gallery structure with the connected expansion ends is formed by enclosing a top plate, a side plate and a bottom plate, and is characterized in that the inner sides of the top plate, the side plate and the bottom plate are fixedly connected through large transverse ribs which are enclosed into a frame, small longitudinal ribs vertically penetrate through the large transverse ribs on the top plate and the bottom plate, a plurality of vertically extending expansion ends are arranged on the outer sides of the side plates at intervals, and two adjacent pipe galleries are connected with each other through the expansion ends in a propping mode and are fixed through bolts. Further, the cross section of the enlarged head is right trapezoid. Furthermore, the right-angle edges of the expansion ends are fixedly connected with the outer side surfaces of the side plates, the lower bottom edges of the expansion ends are coplanar with the edges of the side plates, namely, two groups of expansion ends are arranged on the two side plates of the single-group pipe gallery. Further, the enlarged head is preset with a plurality of precast bolt holes along the length direction of the enlarged head, and the precast bolt holes longitudinally penetrate through the enlarged head. Furthermore, the enlarged ends are internally provided with reinforcing steel bars in a right trapezoid array and are connected through trapezoid hoops. Furthermore, the large transverse ribs and the small longitudinal ribs are staggered in a cross shape, and high-strength steel bars are arranged in the large transverse ribs in a penetrating mode and form a steel bar net through stirrups. Furthermore, the top plate and the side plates, and the bottom plate and the side plates are respectively connected with axillary angle steel bars. Further, two groups of side plates are symmetrically arranged, and large transverse ribs are surrounded to form a square frame shape. Compared with the prior art, the utility model has the following beneficial effects that the connection between the side plate and the bottom plate and the top plate is reinforced by arranging the axillary angle steel ribs, so that the integrity and the durability of the whole structure are improved. The enlarged end of the pipe gallery is trapezoidal in cross section, so that stress concentration is reduced, durability is enhanced, and site construction and installation are facilitated. The pipe gallery segments are connected by high-strength bolts, so that the overall connection strength and the earthquake resistance are ensured. The utility model will be described in further detail with reference to the drawings and the detailed description. Drawings FIG. 1 is a schematic diagram of the connection of two sets of piping lane monomers according to an embodiment of the present utility model; FIG. 2 is a cross-sectional reinforcement view of a large cross rib of a pipe gallery in an embodiment of the utility model; FIG. 3 is a diagram of reinforcement at an enlarged head in an embodiment of the utility model; FIG. 4 is a bar graph of a large cross rib in a pipe gallery in accordance with an embodiment of the utility model; FIG. 5 is a bar graph of a small l