CN105760628A - Construction method of multi-storey residential structure - Google Patents

Abstract

The invention discloses a construction method of a multi-storey residential structure. The method comprises the steps of building a model of the multi-storey residential structure, building a stochastic seismic motion model of the multi-storey residential structure, computing the displacement and speed power spectrum densities of main components of the multi-storey residential structure, building a damage model of the multi-storey residential structure, computing a damage index, performing double reliability evaluation on the model of the multi-storey residential structure, and performing construction. The method performs construction according to the model of the model of the multi-storey residential structure which is qualified through evaluation in advance, reasonably performs adjustment in time according to an evaluation result, improves the earthquake-resistant behavior and the safety of structure, improves the efficiency and saves the cost.

Description

Construction method of multi-storey residential structure

Technical Field

The invention relates to the field of buildings, in particular to a construction method of a multi-storey residential structure.

Background

In the related art, a multi-storey residential structure is provided, in which cast-in-place dispersed reinforced concrete vertical wall limbs, external eave connecting beams and a beamless floor slab form a framework support, the axis of a building is used as a vertical support grid, the wall limbs are located at the intersection points of the grid, and the beamless floor slab is located above the vertical support. The main components include vertical reinforced concrete wall, outer eaves beam, beam-less floor, etc.

Because the geological earthquake intensity and earthquake type of the site where the building belongs are different during construction, although the stability of the multi-storey residential structure is improved to a certain extent, the flexibility of the earthquake resistance performance for adapting to local requirements is poor, and the multi-storey residential structure is easy to damage when encountering high-intensity earthquakes.

Disclosure of Invention

In view of the above problems, the present invention provides a construction method of a multi-storey residential structure to construct a highly flexible multi-storey residential structure with seismic performance adapted to local requirements.

The purpose of the invention is realized by adopting the following technical scheme:

the construction method of the multi-storey residential structure comprises the following steps:

(1) preliminarily constructing a multi-storey residential structure model through computer-aided design, and determining main components of the multi-storey residential structure model;

(2) constructing a random earthquake dynamic model of the multi-layer residential structure model according to the local earthquake fortification intensity, the earthquake design grouping and the site category to which the multi-layer residential structure belongs, and generating a power spectral density function corresponding to the displacement and the speed of the main component;

(3) calculating to obtain corresponding displacement power spectral density and velocity power spectral density according to the power spectral density function of the displacement and the velocity of the main component, and performing integral calculation on the displacement power spectral density and the velocity power spectral density to obtain a displacement variance and a velocity variance of the corresponding main component;

(4) at a standard temperature W₀Carrying out experimental research on the main component to obtain performance parameters of the main component, constructing a damage model of the multi-storey residential structure according to the performance parameters, calculating a damage index phi, considering the influence of the local average temperature W on the performance parameters of the main component, introducing a temperature correction coefficient, and when W is the temperature correction coefficient>W₀Time, temperature correction coefficientWhen W is less than or equal to W₀Time, temperature correction coefficientIn addition, considering that specific construction conditions and local natural environment can generate large influence on component performance parameters and further influence the damage index phi, introducing construction factors and environment factors which are all between 0 and 1, influencing the damage index phi by respective weights a, b and c, wherein the calculation formula of the damage index phi is as follows:

$\mathrm{\Φ}=(1-\mathrm{\η})\frac{S_m}{S_j}(\mathrm{\δ}a+{\mathrm{\δ}}_{1}b+{\mathrm{\δ}}_{2}c)+\mathrm{\η}\frac{E\left(T\right)}{{\mathrm{QS}}_j}$

where η is the energy dissipation factor, S_jIs ultimate displacement, Q is yield load, T is vibration moment when seismic intensity exceeds 50% peak value, S_mIs a main component of [0, T]Maximum displacement in time interval, E (T) being the main component in [0, T]Accumulated hysteresis energy consumption in a time period;

(5) and (3) carrying out dual dynamic reliability evaluation on the multi-storey residential structure model through MATLAB, if the evaluation is qualified, constructing according to the multi-storey residential structure model, and if the evaluation is unqualified, possibly causing corresponding potential safety hazards, and redesigning.

Preferably, when dual dynamic reliability evaluation is performed on the multi-storey residential structure model through MATLAB, an evaluation coefficient psi is set, wherein a calculation formula of the evaluation coefficient psi is as follows:

$\begin{array}{c}\mathrm{\ψ}={\mathrm{\ψ}}_1{\mathrm{\ψ}}_2\\ =\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp (-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)})dx\]-P_1\}\×\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[{\mathrm{lnm}}_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})\]}{2\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})}\]ds-P_2\}\end{array}$

wherein,

${\mathrm{\ψ}}_1=\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp (-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)})dx\]-P_1\},{\mathrm{\ψ}}_2=\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[{\mathrm{lnm}}_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})\]}{2\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})}\]ds-P_2\}$

if psi₁、ψ₂When the number of the residential building structural models is larger than 0, the multi-storey residential building structural models meet the design requirements and are qualified in evaluation; if only satisfy psi₁If greater than 0, then P is added₂Re-evaluating after adjustment; in other cases, the structure design of the multi-storey residential building needs to be carried out again;

wherein T is more than or equal to 0 and less than or equal to T, and a is a set interlayer displacement angle limitValue phi₀For a set limit value of the cumulative damage index, a limit value of the interlayer displacement angle a and a limit value of the cumulative damage index phi₀Determining according to the earthquake type; σ v (x) is the standard deviation of velocity, σ s (x) is the standard deviation of displacement, σ²s (x) is the variance of the displacement, m_ΦMean value of cumulative Damage index, σ_Φ ²Standard deviation of cumulative Damage index, P₁To a set first standard reliability, P₂The set second standard reliability;

the P is₁、P₂Is set in the range of 90% to 99.9%, P₁The value being determined in advance according to the purpose of the structure, P₂The value can be determined according to its initial value P'₂And (3) carrying out self-adaptive adjustment in the range, wherein the specific adjustment mode is as follows:

when the evaluation is passed, P₂＝P′₂；

When the evaluation is not qualified and satisfies psi₁When greater than 0, P₂＝P_2min。

The invention has the beneficial effects that: the method comprises the steps of constructing a multi-storey residential structure by adopting a dual dynamic reliability calculation method, carrying out quantitative control design on the multi-storey residential structure, and then constructing according to a qualified multi-storey residential structure model, so that the seismic strength of the multi-storey residential structure is ensured and improved; the double-power reliability calculation of the multi-storey residential structure is simplified, and the design speed is improved; temperature correction coefficients, construction factors and environmental factors are introduced to calculate the damage index phi, so that the precision of quantitative control design on the multi-storey residential structure is improved; on the premise of satisfying structural safety, P₂The value can be adaptively adjusted within a range according to the initial value, so that the efficiency can be greatly improved, the cost is saved, the potential safety hazard can be greatly reduced, and the structural safety is greatly improved.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.

FIG. 1 is a schematic flow diagram of the process of the present invention.

Detailed Description

The invention is further described with reference to the following examples.

Example 1: the construction method of the multi-storey residential structure shown in fig. 1 comprises the following steps:

(1) preliminarily constructing a multi-storey residential structure model through computer-aided design, and determining main components of the multi-storey residential structure model;

(2) constructing a random earthquake dynamic model of the multi-layer residential structure model according to the local earthquake fortification intensity, the earthquake design grouping and the site category to which the multi-layer residential structure belongs, and generating a power spectral density function corresponding to the displacement and the speed of the main component;

(3) calculating to obtain corresponding displacement power spectral density and velocity power spectral density according to the power spectral density function of the displacement and the velocity of the main component, and performing integral calculation on the displacement power spectral density and the velocity power spectral density to obtain a displacement variance and a velocity variance of the corresponding main component;

(4) at a standard temperature W₀Carrying out experimental research on the main component to obtain performance parameters of the main component, constructing a damage model of the multi-storey residential structure according to the performance parameters, calculating a damage index phi, considering the influence of the local average temperature W on the performance parameters of the main component, introducing a temperature correction coefficient, and when W is the temperature correction coefficient>W₀Time, temperature correction coefficientWhen W is less than or equal to W₀Time, temperature correction coefficientIn addition, considering that specific construction conditions and local natural environment can generate large influence on component performance parameters and further influence the damage index phi, introducing construction factors and environment factors which are all between 0 and 1, influencing the damage index phi by respective weights a, b and c, wherein the calculation formula of the damage index phi is as follows:

$\mathrm{\Φ}=(1-\mathrm{\η})\frac{S_m}{S_j}(\mathrm{\δ}a+{\mathrm{\δ}}_{1}b+{\mathrm{\δ}}_{2}c)+\mathrm{\η}\frac{E\left(T\right)}{{\mathrm{QS}}_j}$

where η is the energy dissipation factor, S_jIs ultimate displacement, Q is yield load, T is vibration moment when seismic intensity exceeds 50% peak value, S_mIs a main component of [0, T]Maximum displacement in time interval, E (T) being the main component in [0, T]Accumulated hysteresis energy consumption in a time period;

(5) and (3) carrying out dual dynamic reliability evaluation on the multi-storey residential structure model through MATLAB, if the evaluation is qualified, constructing according to the multi-storey residential structure model, and if the evaluation is unqualified, possibly causing corresponding potential safety hazards, and redesigning.

Preferably, when dual dynamic reliability evaluation is performed on the multi-storey residential structure model through MATLAB, an evaluation coefficient psi is set, wherein a calculation formula of the evaluation coefficient psi is as follows:

$\begin{array}{c}\mathrm{\ψ}={\mathrm{\ψ}}_1{\mathrm{\ψ}}_2\\ =\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp (-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)})dx\]-P_1\}\×\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[{\mathrm{lnm}}_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})\]}{2\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})}\]ds-P_2\}\end{array}$

wherein,

${\mathrm{\ψ}}_1=\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp (-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)})dx\]-P_1\},{\mathrm{\ψ}}_2=\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[{\mathrm{lnm}}_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})\]}{2\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})}\]ds-P_2\}$

if psi₁、ψ₂When the number of the residential building structural models is larger than 0, the multi-storey residential building structural models meet the design requirements and are qualified in evaluation; if only satisfy psi₁If greater than 0, then P is added₂Re-evaluating after adjustment; in other cases, the structure design of the multi-storey residential building needs to be carried out again;

wherein, 0 is less than or equal toT is less than or equal to T, a is a set interlayer displacement angle limit value phi₀For a set limit value of the cumulative damage index, a limit value of the interlayer displacement angle a and a limit value of the cumulative damage index phi₀Determining according to the earthquake type; σ v (x) is the standard deviation of velocity, σ s (x) is the standard deviation of displacement, σ²s (x) is the variance of the displacement, m_ΦMean value of cumulative Damage index, σ_Φ ²Standard deviation of cumulative Damage index, P₁To a set first standard reliability, P₂The set second standard reliability;

the P is₁、P₂Is set in the range of 90% to 99.9%, P₁The value being determined in advance according to the purpose of the structure, P₂The value can be determined according to its initial value P'₂And (3) carrying out self-adaptive adjustment in the range, wherein the specific adjustment mode is as follows:

when the evaluation is passed, P₂＝P′₂；

When the evaluation is not qualified and satisfies psi₁When greater than 0, P₂＝P_2min。

In this embodiment: the method comprises the steps of constructing a multi-storey residential structure by adopting a dual dynamic reliability calculation method, carrying out quantitative control design on the multi-storey residential structure, and then constructing according to a qualified multi-storey residential structure model, so that the seismic strength of the multi-storey residential structure is ensured and improved; the double-power reliability calculation of the multi-storey residential structure is simplified, and the design speed is improved; temperature correction coefficients, construction factors and environmental factors are introduced to calculate the damage index phi, so that the precision of quantitative control design on the multi-storey residential structure is improved; on the premise of satisfying structural safety, P₂The value can be adaptively adjusted within a range according to the initial value, so that the efficiency can be greatly improved, the cost can be saved, the potential safety hazard can be greatly reduced, and the structural safety can be greatly improved; the value of the first standard reliability is 90%, the design speed is improved by 50% compared with the prior art, and the safety is improved by 20% compared with the prior art.

Example 2: the construction method of the multi-storey residential structure shown in fig. 1 comprises the following steps:

(1) preliminarily constructing a multi-storey residential structure model through computer-aided design, and determining main components of the multi-storey residential structure model;

(2) constructing a random earthquake dynamic model of the multi-layer residential structure model according to the local earthquake fortification intensity, the earthquake design grouping and the site category to which the multi-layer residential structure belongs, and generating a power spectral density function corresponding to the displacement and the speed of the main component;

(3) calculating to obtain corresponding displacement power spectral density and velocity power spectral density according to the power spectral density function of the displacement and the velocity of the main component, and performing integral calculation on the displacement power spectral density and the velocity power spectral density to obtain a displacement variance and a velocity variance of the corresponding main component;

(4) at a standard temperature W₀Carrying out experimental research on the main component to obtain performance parameters of the main component, constructing a damage model of the multi-storey residential structure according to the performance parameters, calculating a damage index phi, considering the influence of the local average temperature W on the performance parameters of the main component, introducing a temperature correction coefficient, and when W is the temperature correction coefficient>W₀Time, temperature correction coefficientWhen W is less than or equal to W₀Time, temperature correction coefficientIn addition, considering that specific construction conditions and local natural environment can generate large influence on component performance parameters and further influence the damage index phi, introducing construction factors and environment factors which are all between 0 and 1, influencing the damage index phi by respective weights a, b and c, wherein the calculation formula of the damage index phi is as follows:

$\mathrm{\Φ}=(1-\mathrm{\η})\frac{S_m}{S_j}(\mathrm{\δ}a+{\mathrm{\δ}}_{1}b+{\mathrm{\δ}}_{2}c)+\mathrm{\η}\frac{E\left(T\right)}{{\mathrm{QS}}_j}$

where η is the energy dissipation factor, S_jIs ultimate displacement, Q is yield load, T is vibration moment when seismic intensity exceeds 50% peak value, S_mIs a main component of [0, T]Maximum displacement in time interval, E (T) being the main component in [0, T]Accumulated hysteresis energy consumption in a time period;

(5) and (3) carrying out dual dynamic reliability evaluation on the multi-storey residential structure model through MATLAB, if the evaluation is qualified, constructing according to the multi-storey residential structure model, and if the evaluation is unqualified, possibly causing corresponding potential safety hazards, and redesigning.

Preferably, when dual dynamic reliability evaluation is performed on the multi-storey residential structure model through MATLAB, an evaluation coefficient psi is set, wherein a calculation formula of the evaluation coefficient psi is as follows:

$\begin{array}{c}\mathrm{\ψ}={\mathrm{\ψ}}_1{\mathrm{\ψ}}_2\\ =\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp (-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)})dx\]-P_1\}\×\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[{\mathrm{lnm}}_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})\]}{2\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})}\]ds-P_2\}\end{array}$

wherein,

${\mathrm{\ψ}}_1=\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp (-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)})dx\]-P_1\},{\mathrm{\ψ}}_2=\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[{\mathrm{lnm}}_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})\]}{2\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})}\]ds-P_2\}$

if psi₁、ψ₂When the number of the residential building structural models is larger than 0, the multi-storey residential building structural models meet the design requirements and are qualified in evaluation; if only satisfy psi₁If greater than 0, then P is added₂Re-evaluating after adjustment; in other cases, the structure design of the multi-storey residential building needs to be carried out again;

t is more than or equal to 0 and less than or equal to T, a is a set interlayer displacement angle limit value phi₀For a set limit value of the cumulative damage index, a limit value of the interlayer displacement angle a and a limit value of the cumulative damage index phi₀Determining according to the earthquake type; σ v (x) is the standard deviation of velocity, σ s (x) is the standard deviation of displacement, σ²s (x) is the variance of the displacement, m_ΦMean value of cumulative Damage index, σ_Φ ²Standard deviation of cumulative Damage index, P₁To a set first standard reliability, P₂The set second standard reliability;

the P is₁、P₂Is set in the range of 90% to 99.9%, P₁Value according toThe purpose of the structure is determined in advance, P₂The value can be determined according to its initial value P'₂And (3) carrying out self-adaptive adjustment in the range, wherein the specific adjustment mode is as follows:

when the evaluation is passed, P₂＝P′₂；

When the evaluation is not qualified and satisfies psi₁When greater than 0, P₂＝P_2min。

In this embodiment: the method comprises the steps of constructing a multi-storey residential structure by adopting a dual dynamic reliability calculation method, carrying out quantitative control design on the multi-storey residential structure, and then constructing according to a qualified multi-storey residential structure model, so that the seismic strength of the multi-storey residential structure is ensured and improved; the double-power reliability calculation of the multi-storey residential structure is simplified, and the design speed is improved; temperature correction coefficients, construction factors and environmental factors are introduced to calculate the damage index phi, so that the precision of quantitative control design on the multi-storey residential structure is improved; on the premise of satisfying structural safety, P₂The value can be adaptively adjusted within a range according to the initial value, so that the efficiency can be greatly improved, the cost can be saved, the potential safety hazard can be greatly reduced, and the structural safety can be greatly improved; the value of the first standard reliability is 92%, the design speed is improved by 45% compared with the prior art, and the safety is improved by 25% compared with the prior art.

Example 3: the construction method of the multi-storey residential structure shown in fig. 1 comprises the following steps:

(1) preliminarily constructing a multi-storey residential structure model through computer-aided design, and determining main components of the multi-storey residential structure model;

(2) constructing a random earthquake dynamic model of the multi-layer residential structure model according to the local earthquake fortification intensity, the earthquake design grouping and the site category to which the multi-layer residential structure belongs, and generating a power spectral density function corresponding to the displacement and the speed of the main component;

(3) calculating to obtain corresponding displacement power spectral density and velocity power spectral density according to the power spectral density function of the displacement and the velocity of the main component, and performing integral calculation on the displacement power spectral density and the velocity power spectral density to obtain a displacement variance and a velocity variance of the corresponding main component;

(4) at a standard temperature W₀Carrying out experimental research on the main component to obtain performance parameters of the main component, constructing a damage model of the multi-storey residential structure according to the performance parameters, calculating a damage index phi, considering the influence of the local average temperature W on the performance parameters of the main component, introducing a temperature correction coefficient, and when W is the temperature correction coefficient>W₀Time, temperature correction coefficientWhen W is less than or equal to W₀Time, temperature correction coefficientIn addition, considering that specific construction conditions and local natural environment can generate large influence on component performance parameters and further influence the damage index phi, introducing construction factors and environment factors which are all between 0 and 1, influencing the damage index phi by respective weights a, b and c, wherein the calculation formula of the damage index phi is as follows:

$\mathrm{\Φ}=(1-\mathrm{\η})\frac{S_m}{S_j}(\mathrm{\δ}a+{\mathrm{\δ}}_{1}b+{\mathrm{\δ}}_{2}c)+\mathrm{\η}\frac{E\left(T\right)}{{\mathrm{QS}}_j}$

where η is the energy dissipation factor, S_jIs ultimate displacement, Q is yield load, T is vibration moment when seismic intensity exceeds 50% peak value, S_mIs a main component of [0, T]Maximum displacement in time interval, E (T) being the main component in [0, T]Accumulated hysteresis energy consumption in a time period;

(5) and (3) carrying out dual dynamic reliability evaluation on the multi-storey residential structure model through MATLAB, if the evaluation is qualified, constructing according to the multi-storey residential structure model, and if the evaluation is unqualified, possibly causing corresponding potential safety hazards, and redesigning.

Preferably, when dual dynamic reliability evaluation is performed on the multi-storey residential structure model through MATLAB, an evaluation coefficient psi is set, wherein a calculation formula of the evaluation coefficient psi is as follows:

$\begin{array}{c}\mathrm{\ψ}={\mathrm{\ψ}}_1{\mathrm{\ψ}}_2\\ =\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp (-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)})dx\]-P_1\}\×\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[{\mathrm{lnm}}_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})\]}{2\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})}\]ds-P_2\}\end{array}$

wherein,

${\mathrm{\ψ}}_1=\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp (-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)})dx\]-P_1\},{\mathrm{\ψ}}_2=\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[{\mathrm{lnm}}_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})\]}{2\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})}\]ds-P_2\}$

if psi₁、ψ₂When the number of the residential building structural models is larger than 0, the multi-storey residential building structural models meet the design requirements and are qualified in evaluation; if only satisfy psi₁If greater than 0, then P is added₂Re-evaluating after adjustment; in other cases, the structure design of the multi-storey residential building needs to be carried out again;

t is more than or equal to 0 and less than or equal to T, a is a set interlayer displacement angle limit value phi₀For a set limit value of the cumulative damage index, a limit value of the interlayer displacement angle a and a limit value of the cumulative damage index phi₀Determining according to the earthquake type; σ v (x) is the standard deviation of velocity, σ s (x) is the standard deviation of displacement, σ²s (x) is the variance of the displacement, m_ΦMean value of cumulative Damage index, σ_Φ ²Standard deviation of cumulative Damage index, P₁To a set first standard reliability, P₂The set second standard reliability;

the P is₁、P₂Is set in the range of 90% to 99.9%, P₁The value being determined in advance according to the purpose of the structure, P₂The value can be determined according to its initial value P'₂And (3) carrying out self-adaptive adjustment in the range, wherein the specific adjustment mode is as follows:

when the evaluation is passed, P₂＝P′₂；

When the evaluation is not qualified and satisfies psi₁When greater than 0, P₂＝P_2min。

In this embodiment: constructing a multi-storey residential structure by adopting a dual dynamic reliability calculation method to carry out quantitative control design on the multi-storey residential structure, and then entering according to a multi-storey residential structure model qualified by evaluationThe construction is carried out, so that the earthquake resistance strength of the multi-storey residential structure is ensured and improved; the double-power reliability calculation of the multi-storey residential structure is simplified, and the design speed is improved; temperature correction coefficients, construction factors and environmental factors are introduced to calculate the damage index phi, so that the precision of quantitative control design on the multi-storey residential structure is improved; on the premise of satisfying structural safety, P₂The value can be adaptively adjusted within a range according to the initial value, so that the efficiency can be greatly improved, the cost can be saved, the potential safety hazard can be greatly reduced, and the structural safety can be greatly improved; the value of the first standard reliability is 94%, the design speed is improved by 40% compared with the prior art, and the safety is improved by 30% compared with the prior art.

Example 4: the construction method of the multi-storey residential structure shown in fig. 1 comprises the following steps:

(1) preliminarily constructing a multi-storey residential structure model through computer-aided design, and determining main components of the multi-storey residential structure model;

(2) constructing a random earthquake dynamic model of the multi-layer residential structure model according to the local earthquake fortification intensity, the earthquake design grouping and the site category to which the multi-layer residential structure belongs, and generating a power spectral density function corresponding to the displacement and the speed of the main component;

(3) calculating to obtain corresponding displacement power spectral density and velocity power spectral density according to the power spectral density function of the displacement and the velocity of the main component, and performing integral calculation on the displacement power spectral density and the velocity power spectral density to obtain a displacement variance and a velocity variance of the corresponding main component;

(4) at a standard temperature W₀Carrying out experimental research on the main component to obtain performance parameters of the main component, constructing a damage model of the multi-storey residential structure according to the performance parameters, calculating a damage index phi, considering the influence of the local average temperature W on the performance parameters of the main component, introducing a temperature correction coefficient, and when W is the temperature correction coefficient>W₀Time, temperature correction coefficientWhen W is less than or equal to W₀Time, temperature correction coefficientIn addition, considering that specific construction conditions and local natural environment can generate large influence on component performance parameters and further influence the damage index phi, introducing construction factors and environment factors which are all between 0 and 1, influencing the damage index phi by respective weights a, b and c, wherein the calculation formula of the damage index phi is as follows:

$\mathrm{\Φ}=(1-\mathrm{\η})\frac{S_m}{S_j}(\mathrm{\δ}a+{\mathrm{\δ}}_{1}b+{\mathrm{\δ}}_{2}c)+\mathrm{\η}\frac{E\left(T\right)}{{\mathrm{QS}}_j}$

where η is the energy dissipation factor, S_jIs ultimate displacement, Q is yield load, T is vibration moment when seismic intensity exceeds 50% peak value, S_mIs a main component of [0, T]Maximum displacement in time interval, E (T) being the main component in [0, T]Accumulated hysteresis energy consumption in a time period;

(5) and (3) carrying out dual dynamic reliability evaluation on the multi-storey residential structure model through MATLAB, if the evaluation is qualified, constructing according to the multi-storey residential structure model, and if the evaluation is unqualified, possibly causing corresponding potential safety hazards, and redesigning.

Preferably, when dual dynamic reliability evaluation is performed on the multi-storey residential structure model through MATLAB, an evaluation coefficient psi is set, wherein a calculation formula of the evaluation coefficient psi is as follows:

$\begin{array}{c}\mathrm{\ψ}={\mathrm{\ψ}}_1{\mathrm{\ψ}}_2\\ =\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp (-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)})dx\]-P_1\}\×\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[{\mathrm{lnm}}_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})\]}{2\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})}\]ds-P_2\}\end{array}$

wherein,

${\mathrm{\ψ}}_1=\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp (-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)})dx\]-P_1\},{\mathrm{\ψ}}_2=\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[{\mathrm{lnm}}_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})\]}{2\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})}\]ds-P_2\}$

if psi₁、ψ₂When the number of the residential building structural models is larger than 0, the multi-storey residential building structural models meet the design requirements and are qualified in evaluation; if only satisfy psi₁If greater than 0, then P is added₂Re-evaluating after adjustment; in other cases, the operation needs to be resumedDesigning a multi-storey residential structure;

t is more than or equal to 0 and less than or equal to T, a is a set interlayer displacement angle limit value phi₀For a set limit value of the cumulative damage index, a limit value of the interlayer displacement angle a and a limit value of the cumulative damage index phi₀Determining according to the earthquake type; σ v (x) is the standard deviation of velocity, σ s (x) is the standard deviation of displacement, σ²s (x) is the variance of the displacement, m_ΦMean value of cumulative Damage index, σ_Φ ²Standard deviation of cumulative Damage index, P₁To a set first standard reliability, P₂The set second standard reliability;

the P is₁、P₂Is set in the range of 90% to 99.9%, P₁The value being determined in advance according to the purpose of the structure, P₂The value can be determined according to its initial value P'₂And (3) carrying out self-adaptive adjustment in the range, wherein the specific adjustment mode is as follows:

when the evaluation is passed, P₂＝P′₂；

When the evaluation is not qualified and satisfies psi₁When greater than 0, P₂＝P_2min。。

In this embodiment: the method comprises the steps of constructing a multi-storey residential structure by adopting a dual dynamic reliability calculation method, carrying out quantitative control design on the multi-storey residential structure, and then constructing according to a qualified multi-storey residential structure model, so that the seismic strength of the multi-storey residential structure is ensured and improved; the double-power reliability calculation of the multi-storey residential structure is simplified, and the design speed is improved; temperature correction coefficients, construction factors and environmental factors are introduced to calculate the damage index phi, so that the precision of quantitative control design on the multi-storey residential structure is improved; on the premise of satisfying structural safety, P₂The value can be adaptively adjusted within a range according to the initial value, so that the efficiency can be greatly improved, the cost can be saved, the potential safety hazard can be greatly reduced, and the structural safety can be greatly improved; the value of the first standard reliability is 96%, the design speed is improved by 35% compared with the prior art, and the safety is improved by 35% compared with the prior art％。

Example 5: the construction method of the multi-storey residential structure shown in fig. 1 comprises the following steps:

(1) preliminarily constructing a multi-storey residential structure model through computer-aided design, and determining main components of the multi-storey residential structure model;

(2) constructing a random earthquake dynamic model of the multi-layer residential structure model according to the local earthquake fortification intensity, the earthquake design grouping and the site category to which the multi-layer residential structure belongs, and generating a power spectral density function corresponding to the displacement and the speed of the main component;

(3) calculating to obtain corresponding displacement power spectral density and velocity power spectral density according to the power spectral density function of the displacement and the velocity of the main component, and performing integral calculation on the displacement power spectral density and the velocity power spectral density to obtain a displacement variance and a velocity variance of the corresponding main component;

(4) at a standard temperature W₀Carrying out experimental research on the main component to obtain performance parameters of the main component, constructing a damage model of the multi-storey residential structure according to the performance parameters, calculating a damage index phi, considering the influence of the local average temperature W on the performance parameters of the main component, introducing a temperature correction coefficient, and when W is the temperature correction coefficient>W₀Time, temperature correction coefficientWhen W is less than or equal to W₀Time, temperature correction coefficientIn addition, considering that specific construction conditions and local natural environment can generate large influence on component performance parameters and further influence the damage index phi, introducing construction factors and environment factors which are all between 0 and 1, influencing the damage index phi by respective weights a, b and c, wherein the calculation formula of the damage index phi is as follows:

$\mathrm{\Φ}=(1-\mathrm{\η})\frac{S_m}{S_j}(\mathrm{\δ}a+{\mathrm{\δ}}_{1}b+{\mathrm{\δ}}_{2}c)+\mathrm{\η}\frac{E\left(T\right)}{{\mathrm{QS}}_j}$

where η is the energy dissipation factor, S_jIs ultimate displacement, Q is yield load, T is vibration moment when seismic intensity exceeds 50% peak value, S_mIs a main component of [0, T]Maximum displacement in time interval, E (T) being the main component in [0, T]Accumulated hysteresis energy consumption in a time period;

(5) and (3) carrying out dual dynamic reliability evaluation on the multi-storey residential structure model through MATLAB, if the evaluation is qualified, constructing according to the multi-storey residential structure model, and if the evaluation is unqualified, possibly causing corresponding potential safety hazards, and redesigning.

Preferably, when dual dynamic reliability evaluation is performed on the multi-storey residential structure model through MATLAB, an evaluation coefficient psi is set, wherein a calculation formula of the evaluation coefficient psi is as follows:

$\begin{array}{c}\mathrm{\ψ}={\mathrm{\ψ}}_1{\mathrm{\ψ}}_2\\ =\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp (-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)})dx\]-P_1\}\×\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[{\mathrm{lnm}}_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})\]}{2\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})}\]ds-P_2\}\end{array}$

wherein,

${\mathrm{\ψ}}_1=\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp (-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)})dx\]-P_1\},{\mathrm{\ψ}}_2=\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[{\mathrm{lnm}}_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})\]}{2\ln (1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2})}\]ds-P_2\}$

if psi₁、ψ₂When the number of the residential building structural models is larger than 0, the multi-storey residential building structural models meet the design requirements and are qualified in evaluation; if only satisfy psi₁If greater than 0, then P is added₂Re-evaluating after adjustment; in other cases, the structure design of the multi-storey residential building needs to be carried out again;

t is more than or equal to 0 and less than or equal to T, a is a set interlayer displacement angle limit value phi₀For a set limit value of the cumulative damage index, a limit value of the interlayer displacement angle a and a limit value of the cumulative damage index phi₀Determining according to the earthquake type; σ v (x) is the standard deviation of velocity, σ s (x) is the standard deviation of displacement, σ²s (x) is the variance of the displacement, m_ΦMean value of cumulative Damage index, σ_Φ ²Standard deviation of cumulative Damage index, P₁To a set first standard reliability, P₂The set second standard reliability;

the P is₁、P₂Is set in the range of 90% to 99.9%, P₁The value being determined in advance according to the purpose of the structure, P₂The value can be determined according to its initial value P'₂And (3) carrying out self-adaptive adjustment in the range, wherein the specific adjustment mode is as follows:

when the evaluation is passed, P₂＝P′₂；

When the evaluation is not qualified and satisfies psi₁When greater than 0, P₂＝P_2min。

In this embodiment: the method comprises the steps of constructing a multi-storey residential structure by adopting a dual dynamic reliability calculation method, carrying out quantitative control design on the multi-storey residential structure, and then constructing according to a qualified multi-storey residential structure model, so that the seismic strength of the multi-storey residential structure is ensured and improved; the double-power reliability calculation of the multi-storey residential structure is simplified, and the design speed is improved; temperature correction coefficients, construction factors and environmental factors are introduced to calculate the damage index phi, so that the precision of quantitative control design on the multi-storey residential structure is improved; on the premise of satisfying structural safety, P₂The value can be adaptively adjusted within a range according to the initial value, so that the efficiency can be greatly improved, the cost can be saved, the potential safety hazard can be greatly reduced, and the structural safety can be greatly improved; the value of the first standard reliability is 98%, the design speed is improved by 30% compared with the prior art, and the safety is improved by 40% compared with the prior art.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims (2)

1. The construction method of the multi-storey residential structure is characterized by comprising the following steps of:

(1) preliminarily constructing a multi-storey residential structure model through computer-aided design, and determining main components of the multi-storey residential structure model;

(2) constructing a random earthquake dynamic model of the multi-layer residential structure model according to the local earthquake fortification intensity, the earthquake design grouping and the site category to which the multi-layer residential structure belongs, and generating a power spectral density function corresponding to the displacement and the speed of the main component;

(3) calculating to obtain corresponding displacement power spectral density and velocity power spectral density according to the power spectral density function of the displacement and the velocity of the main component, and performing integral calculation on the displacement power spectral density and the velocity power spectral density to obtain a displacement variance and a velocity variance of the corresponding main component;

(4) at a standard temperature W₀Carrying out experimental research on the main component to obtain performance parameters of the main component, constructing a damage model of the multi-storey residential structure according to the performance parameters, calculating a damage index phi, considering the influence of the local average temperature W on the performance parameters of the main component, introducing a temperature correction coefficient, and when W is the temperature correction coefficient>W₀Time, temperature correction coefficientWhen W is less than or equal to W₀Time, temperature correction coefficientIn addition, considering that specific construction conditions and local natural environment can generate large influence on component performance parameters and further influence the damage index phi, introducing construction factors and environment factors which are all between 0 and 1, influencing the damage index phi by respective weights a, b and c, wherein the calculation formula of the damage index phi is as follows:

$\mathrm{\Φ}=(1-\mathrm{\η})\frac{S_m}{S_j}(\mathrm{\δ}a+{\mathrm{\δ}}_{1}b+{\mathrm{\δ}}_{2}c)+\mathrm{\η}\frac{E\left(T\right)}{{\mathrm{QS}}_j}$

where η is the energy dissipation factor, S_jIs ultimate displacement, Q is yield load, T is vibration moment when seismic intensity exceeds 50% peak value, S_mIs a main component of [0, T]Maximum displacement in time interval, E (T) being the main component in [0, T]Accumulated hysteresis energy consumption in a time period;

(5) and (3) carrying out dual dynamic reliability evaluation on the multi-storey residential structure model through MATLAB, if the evaluation is qualified, constructing according to the multi-storey residential structure model, and if the evaluation is unqualified, possibly causing corresponding potential safety hazards, and redesigning.

2. The construction method of a multistoried building structure according to claim 1, wherein an evaluation coefficient ψ is set when a double dynamic reliability evaluation is performed on a multistoried building structure model by MATLAB, wherein a calculation formula of the evaluation coefficient ψ is:

$\mathrm{\ψ}={\mathrm{\ψ}}_1{\mathrm{\ψ}}_2$

$=\left\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp \left(-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)}\right)dx\]-P_1\right\}\×\left\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[\ln m_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln \left(1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2}\right)}{2\ln \left(1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2}\right)}\]ds-P_2\right\}$

wherein,

${\mathrm{\Ψ}}_1=\left\{\exp \[-\underset{0}{\overset{t}{\∫}}\frac{1}{\mathrm{\π}}\frac{\mathrm{\σ}v\left(x\right)}{\mathrm{\σ}s\left(x\right)}\exp \left(-\frac{a^2}{2{\mathrm{\σ}}^{2}s\left(x\right)}\right)dx\]-P_1\right\},{\mathrm{\Ψ}}_2=\left\{\underset{0}{\overset{{\mathrm{\Φ}}_0}{\∫}}\[\frac{1}{\sqrt{2\mathrm{\π}}\left(\ln \mathrm{\Φ}\right)s}\exp \frac{\[\ln m_{\mathrm{\Φ}}-\ln s-\frac{1}{2}\ln \left(1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2}\right)}{2\ln \left(1+\frac{{{\mathrm{\σ}}_{\mathrm{\Φ}}}^2}{{m_{\mathrm{\Φ}}}^2}\right)}\]ds-P_2\right\}$

if psi₁、ψ₂When the number of the residential building structural models is larger than 0, the multi-storey residential building structural models meet the design requirements and are qualified in evaluation; if only satisfy psi₁If greater than 0, then P is added₂Re-evaluating after adjustment; in other cases, the structure design of the multi-storey residential building needs to be carried out again;

t is more than or equal to 0 and less than or equal to T, a is a set interlayer displacement angle limit value phi₀For a set cumulative damage index threshold, layerDisplacement angle limit a and cumulative damage index limit Φ₀Determining according to the earthquake type; σ v (x) is the standard deviation of velocity, σ s (x) is the standard deviation of displacement, σ²s (x) is the variance of the displacement, m_ΦMean value of cumulative Damage index, σ_Φ ²Standard deviation of cumulative Damage index, P₁To a set first standard reliability, P₂The set second standard reliability;

the P is₁、P₂Is set in the range of 90% to 99.9%, P₁The value being determined in advance according to the purpose of the structure, P₂The value can be determined according to its initial value P'₂And (3) carrying out self-adaptive adjustment in the range, wherein the specific adjustment mode is as follows:

when the evaluation is passed, P₂＝P′₂；

When the evaluation is not qualified and satisfies psi₁When greater than 0, P₂＝P_2min。