CN-115931563-B - Assembled building bearing monitoring system

CN115931563BCN 115931563 BCN115931563 BCN 115931563BCN-115931563-B

Abstract

The invention relates to the field of buildings, in particular to an assembled building bearing monitoring system which comprises an acquisition unit, a first adjusting unit, a second adjusting unit, a judging unit and a monitoring unit, wherein the acquisition unit is used for acquiring real-time pressure of a precast column by a precast slab, offset of the precast column and real-time environment parameters, the first adjusting unit is used for adjusting a threshold standard value of the offset of the precast column according to the height of the precast column, the second adjusting unit is used for determining bearing weight of the precast column according to the number of precast elements connected with the precast column, the judging unit is used for judging the standard of the position of the precast element according to the real-time offset of the precast column, the monitoring unit is used for judging whether the precast column is in a safe state according to the real-time pressure of the precast column, and further judging whether the precast column is in the safe state according to the real-time environment influence degree obtained by the real-time environment parameters.

Inventors

Chen Henghuai
YAO WEI
LIU SIDE
WU JIANHUA
WEN QIFU
YONG ZHI
LIN LI
PENG MIAO

Assignees

厦门理工学院
中铁二十二局集团第三工程有限公司

Dates

Publication Date: 20260505
Application Date: 20221223

Claims (10)

1. The prefabricated building load bearing monitoring system is characterized by comprising an acquisition unit, a first adjusting unit, a second adjusting unit and a judging unit, wherein the acquisition unit is used for acquiring real-time pressure of a prefabricated column by a prefabricated plate, offset of the prefabricated column and real-time environment parameters, the real-time environment parameters comprise temperature, humidity and wind speed, the first adjusting unit is used for adjusting a threshold standard value of the offset of the prefabricated column according to the height of the prefabricated column, the second adjusting unit is connected with the first adjusting unit and used for determining the load bearing weight of the prefabricated column according to the number of prefabricated columns connected with the prefabricated column and conducting secondary adjustment on the threshold standard value of the offset of the prefabricated column through the load bearing weight of the prefabricated column, the judging unit is connected with the acquisition unit and used for judging the standardization of the position of the prefabricated column according to the real-time offset of the prefabricated column, the monitoring unit is connected with the acquisition unit and the judging unit respectively and used for judging whether the prefabricated column is in a safe state according to the real-time pressure received by the prefabricated column, the real-time environment parameters further judging whether the prefabricated column is in the safe state or not according to the acquired real-time environment influence, and the prefabricated column is in the safe state or not, the prefabricated column is in the prefabricated wall area according to the acquired real-time environment parameters, the preset load bearing area is adjusted by the prefabricated wall area and the prefabricated column is not in the preset load bearing area.
2. The fabricated building load bearing monitoring system according to claim 1, wherein the first adjusting unit adjusts a threshold standard value of the displacement of the prefabricated column according to a difference value delta H between the height H of the prefabricated column and the building design height H and a preset height difference value delta H, delta h=h-H is set, if delta H is less than or equal to delta H1, the first adjusting unit judges that the threshold standard value of the displacement of the prefabricated column is increased, if delta H1 </delta H2, the first adjusting unit does not adjust the threshold standard value of the displacement of the prefabricated column, if delta H is more than or equal to delta H2, the first adjusting unit judges that the threshold standard value of the displacement of the prefabricated column is reduced, wherein the first adjusting unit presets the height difference value as delta H, sets the first preset height difference value as delta H1, and the second preset height difference value as delta H2.
3. The fabricated building load bearing monitoring system according to claim 2, wherein when the height difference obtained by the first adjusting unit is equal to or smaller than a first preset height difference, the first adjusting unit increases the threshold standard value d of the prefabricated column offset to d1, d1=d× (1+|Δh1- Δh|/Δh1), and when the height difference obtained by the first adjusting unit is equal to or larger than a second preset height difference, the first adjusting unit decreases the threshold standard value d of the prefabricated column offset to d2, d2=d× (1+|Δh2- Δh|/Δh2).
4. The fabricated building load-bearing monitoring system according to claim 3, wherein the second adjusting unit obtains the number N of prefabricated members connected with the prefabricated columns, and compares the obtained number N of prefabricated members with a preset number N to adjust the load-bearing weight of the prefabricated columns, wherein if N is less than or equal to N1, the second adjusting unit reduces the load-bearing weight q to q1 of the prefabricated columns, q1=q× (1- (|n1-n|/N1) 1/2 , if N1< N2), the second adjusting unit does not adjust the load-bearing weight of the prefabricated columns, and if N is greater than or equal to N2, the second adjusting unit increases the load-bearing weight q to q2 of the prefabricated columns, sets q2=q× (1+ (|n2-n|/N2) 1/2 ), wherein the second adjusting unit presets the number N, sets the first preset number N1, and the second preset number N2.
5. The system of claim 4, wherein the second adjusting unit compares the load weight qi of the precast column with a preset load weight Q to adjust a threshold standard value of the precast column offset, wherein if qi is less than or equal to Q, the second adjusting unit does not adjust the threshold standard value of the precast column offset, and if qi > Q, the second adjusting unit decreases the threshold standard value dj of the precast column offset to dj1 to set dj1 = dj× (1-Q/5), wherein i = 1,2, j = 1,2.
6. The system according to claim 5, wherein the judging unit obtains a real-time offset s of the prefabricated column, compares the obtained real-time offset with a threshold standard value dj1 of the offset of the prefabricated column, judges whether the position of the prefabricated column meets a preset standard, wherein if s is less than or equal to dj1, the judging unit judges that the position of the prefabricated column meets the preset standard, and if s > dj1, the judging unit judges that the position of the prefabricated column does not meet the preset standard, and sends out an alarm.
7. The prefabricated building load bearing monitoring system according to claim 6, wherein when the judging unit judges that the position of the prefabricated column meets the preset standard, the monitoring unit compares the acquired real-time pressure F received by the prefabricated column with the preset pressure F to judge whether the prefabricated column is in a safe state, if F is less than or equal to F1, the monitoring unit judges that the prefabricated column is in the safe state, if F1 is less than or equal to F2, the monitoring unit preliminarily judges that the prefabricated column is not in the safe state, acquires real-time environment parameters to further judge whether the prefabricated column is in the safe state, if F is more than or equal to F2, the monitoring unit judges that the prefabricated column is in a dangerous state and gives an alarm, wherein the preset pressure is marked as F, the first preset pressure is set as F1, and the second preset pressure is set as F2.
8. The system of claim 7, wherein when the real-time pressure of the prefabricated column obtained by the monitoring unit is greater than the first preset pressure and less than the second preset pressure, the monitoring unit obtains real-time environmental influence R according to the real-time environmental parameter, and sets r= (T/t0×z1) + (P/p0×z2) + (v/vo×z3), wherein T is real-time temperature, T0 is a preset temperature standard value, P is real-time humidity, P0 is a preset humidity standard value, v is real-time wind speed, VO is a preset wind speed standard value, the monitoring unit presets a first adjustment coefficient Z1, a second adjustment coefficient Z2 and a third adjustment coefficient Z3, the monitoring unit compares the obtained environmental influence R with the preset environmental influence R, determines whether the prefabricated column is in a safe state, if R is less than or equal to R, the monitoring unit determines that the prefabricated column is in a dangerous state, and sends an alarm, if R > R, the monitoring unit determines that the prefabricated column is in a safe state.
9. The system of claim 8, wherein when the monitoring unit determines that the prefabricated column is in a safe state, the monitoring unit obtains a bearing value W of a building in an area where the prefabricated column is located according to a number of vertical member connection nodes in adjacent prefabricated walls of the prefabricated column, which do not meet a preset standard, and a real-time offset S of the prefabricated column, w= (K/K) x (S/S), wherein K is a preset number of standard values, S is a preset offset standard value, the monitoring unit compares the obtained bearing value W of the building in the area where the prefabricated column is located with the preset bearing value W, and determines whether the bearing value of the building in the area where the prefabricated column is located meets the preset standard, wherein if W is less than or equal to W, the monitoring unit determines that the bearing value of the building in the area where the prefabricated column is located meets the preset standard, and if W is greater than W, the monitoring unit determines that the bearing value of the building in the area where the prefabricated column is not met the preset standard.
10. The fabricated building load bearing monitoring system according to claim 9, wherein when the building load bearing value obtained by the monitoring unit is greater than a preset load bearing value, the monitoring unit determines threshold standard values di1 to di1 'for reducing the amount of deflection of the prefabricated column, and sets di1' =di 1× (1- |w-w|/W/2).

Description

Assembled building bearing monitoring system Technical Field The invention relates to the field of buildings, in particular to an assembled building bearing monitoring system. Background The prefabricated building has the advantages of convenience, environmental protection, labor and material resource saving and the like, is more and more widely distributed, but compared with the traditional building, the prefabricated building needs to be combined with each prefabricated member, in the construction process, each prefabricated member, especially the position of a prefabricated column and environmental factors can influence the bearing value of the prefabricated building, the detection of the prefabricated building is usually carried out on the performance strength of each component of the prefabricated building at present, so that the bearing value of the prefabricated building is obtained, real-time monitoring and alarming cannot be carried out in the construction process of the prefabricated building, and the construction safety of the prefabricated building in the construction process is ensured. Chinese patent CN 110940501B discloses an assembled building detection device and detection method, which is technically characterized in that a frame is fixed on a support, a spandrel girder is fixed on the frame through a connecting piece, and only the performance of each component of the assembled building can be detected, and the real-time monitoring cannot be performed. Disclosure of Invention Therefore, the invention provides an assembled building bearing monitoring system which can solve the technical problem that the safety of a prefabricated column cannot be judged according to the offset of the prefabricated column and the real-time environment parameter, so that the bearing value of an assembled building is monitored in real time and an alarm is given. The invention provides an assembled building load bearing monitoring system which comprises an acquisition unit, a first adjusting unit, a second adjusting unit and a judging unit, wherein the acquisition unit is used for acquiring real-time pressure of prefabricated plates to prefabricated columns, deviation of the prefabricated columns and real-time environment parameters, the real-time environment parameters comprise temperature, humidity and wind speed, the first adjusting unit is used for adjusting a threshold value standard value of the deviation of the prefabricated columns according to the height of the prefabricated columns, the second adjusting unit is connected with the first adjusting unit and used for determining the load bearing weight of the prefabricated columns according to the number of prefabricated columns connected with the prefabricated columns and conducting secondary adjustment on the threshold value standard value of the deviation of the prefabricated columns through the load bearing weight of the prefabricated columns, the judging unit is connected with the acquisition unit and used for judging the standardization of the positions of the prefabricated columns according to the real-time deviation of the prefabricated columns, the monitoring unit is connected with the acquisition unit and the judging unit respectively used for judging whether the prefabricated columns are in a safe state according to the real-time pressure received by the prefabricated columns, the real-time environment parameters are further judged whether the prefabricated columns are in the safe state according to the real-time environment parameters, the obtained real-time environment loudness is used for judging whether the prefabricated columns are in the safe state or not, and the prefabricated columns are in the safe state according to the obtained real-time environment parameters, the obtained real-time environment parameters are different from the preset building area, the preset building load bearing area is not met by the preset building load bearing area, and the preset building area is not corresponding to the preset building load bearing area. Further, the first adjusting unit adjusts the threshold standard value of the offset of the precast column according to the difference Deltah between the height H of the precast column and the building design height H and the preset height difference DeltaH, sets Deltah=h-H, If Deltah is less than or equal to DeltaH 1, the first adjusting unit judges a threshold standard value for increasing the offset of the precast column; If delta H1< deltah < deltaH 2, the first adjusting unit does not adjust the threshold standard value of the offset of the prefabricated column; if the delta H is more than or equal to delta H2, the first adjusting unit judges a threshold standard value for reducing the offset of the precast column; The preset height difference of the first adjusting unit is recorded as delta H, the first preset height difference is set as delta H1, and the second preset height difference is set as delta